Aviation English
Aviation English Glossary
1237 professional aviation english terms with definitions, pronunciation and examples. Learn what each term means — free with Termify.
A
- Qu'est-ce que accouplement carburant ? Mechanical fitting connecting hydrant hose to aircraft or fueling truck manifold.
- Qu'est-ce que Accouplement de sécurité carburant ? A safety device in fuel systems designed to disconnect or break under excessive force, preventing fuel spillage and syst...
- Qu'est-ce que accumulateur hydraulique ? A pressurized storage device that maintains hydraulic pressure and absorbs system shocks.
- Qu'est-ce que Accumulation De Glace En Vol ? The buildup of ice on aircraft surfaces during flight due to supercooled water droplets freezing on contact, which can i...
- Qu'est-ce que Accumulation de neige ? The build-up of snow on airport surfaces, aircraft, or equipment, affecting operations, safety, or performance.
- Qu'est-ce que Accusé de réception ? An instruction to confirm that a message has been received and understood.
- Qu'est-ce que Accélérer ? A phrase used to instruct the pilot to hasten a maneuver or action.
- Qu'est-ce que action de freinage ? Pilot- or airport-reported assessment of runway surface stopping quality: good/medium/poor/nil.
- Qu'est-ce que Activation du Vibreur de Manche ? The activation of a device that rapidly vibrates the control column to warn the pilot of an impending aerodynamic stall.
- Qu'est-ce que Additif Prist ? A proprietary fuel system icing inhibitor (FSII) additive, often used in jet fuel to prevent the formation of ice crysta...
- Qu'est-ce que ADIRS-1 hors service ? Primary ADIRS channel 1 failed; aircraft relying on remaining or standby navigation sources in accordance with MEL.
- Qu'est-ce que ADIRU de secours ? Independent backup ADIRU providing attitude, heading, and air-data when primary systems are degraded or failed.
- Qu'est-ce que affichage de navigation ? Electronic display showing route, waypoints, navigation aids, weather, and traffic information.
- Qu'est-ce que Affichage de Navigation ? An electronic cockpit display providing pilots with route, waypoint, weather radar, and traffic information to support f...
- Qu'est-ce que affichage des instruments moteur ? The cockpit display panel showing all vital engine parameters, including N1/N2, temperature, oil pressure, fuel flow, an...
- Qu'est-ce que affichage principal de vol ? The main instrument display showing attitude, speed, altitude, heading, and flight director information.
- Qu'est-ce que Affichage Principal de Vol ? The main electronic cockpit display providing essential flight information such as attitude, airspeed, altitude, and hea...
- Qu'est-ce que affichage synoptique des systèmes ? A cockpit display providing a schematic overview of aircraft systems’ status, such as hydraulics, electrics, fuel, and a...
- Qu'est-ce que Affichage tête haute ? Transparent cockpit display showing critical flight data within the pilot’s forward field of view, reducing the need to ...
- Qu'est-ce que Affirmatif ? A standard radiotelephony term meaning 'Yes'; used to indicate a positive response to a question or instruction.
- Qu'est-ce que Agent de piste ? A ground operations staff member responsible for guiding aircraft to and from gates, loading and unloading baggage, and ...
- Qu'est-ce que Agent de signalisation ? A person responsible for providing visual signals to guide aircraft during parking, pushback, or maneuvering on the apro...
- Qu'est-ce que Aide de protection thermique ? Insulated suit or bag carried in life-rafts to reduce hypothermia risk for survivors awaiting rescue in cold seas.
- Qu'est-ce que air de prélèvement ? High-pressure air extracted from an aircraft engine's compressor stage and used for environmental control, pressurizatio...
- Qu'est-ce que air d’ajustement ? A system that adds small amounts of hot bleed air to the mixed supply to fine-tune cabin temperature zones.
- Qu'est-ce que Air préconditionné ? Air that has been heated or cooled and dehumidified before being supplied to an aircraft on the ground.
- Qu'est-ce que Aire de trafic ? A defined area on an airport intended to accommodate aircraft for purposes of loading or unloading passengers or cargo, ...
- Qu'est-ce que Ajout d’additifs au carburant ? The process of adding specific chemical additives to aviation fuel to improve its properties, such as preventing microbi...
- Qu'est-ce que Alarme fumée toilette ? Detector-triggered alert indicating presence of smoke or vapour in aircraft lavatory.
- Qu'est-ce que Alerte de Conscience du Terrain ? A warning generated by aircraft systems indicating proximity to terrain that may result in controlled flight into terrai...
- Qu'est-ce que Alerte de sécurité ? A warning issued to alert the pilot of an immediate safety concern.
- Qu'est-ce que Alerte de trafic ? A warning issued to alert the pilot of nearby aircraft that may pose a collision risk.
- Qu'est-ce que Alerte incendie ? Automated alert indicating detection of fire or overheat in an aircraft system area, requiring immediate crew action.
- Qu'est-ce que Alignement ? An ATC instruction for an aircraft to enter the runway and position itself for take-off, without commencing the take-off...
- Qu'est-ce que Alignez-vous et attendez ? An air traffic control instruction for an aircraft to taxi onto the runway and hold in position, awaiting takeoff cleara...
- Qu'est-ce que Alimentation carburant APU ? The dedicated fuel supply system or operation that delivers fuel from the aircraft's tanks to the Auxiliary Power Unit (...
- Qu'est-ce que Alimentation Croisée En Carburant ? A procedure that allows fuel to be transferred from one tank to another, typically to correct a fuel imbalance or supply...
- Qu'est-ce que Alimentation du galley ? The electrical power supply dedicated to the aircraft galley, required for safe operation of galley equipment such as ov...
- Qu'est-ce que Alimentation moteur ? The process or system of supplying fuel from the tanks to an aircraft engine for combustion and operation.
- Qu'est-ce que Alimentation Par Batterie Seule ? A condition where the aircraft’s electrical system is operating solely on battery power, typically due to the failure of...
- Qu'est-ce que Alimentation par Ethernet en avionique ? A system that delivers both power and data over Ethernet cables to avionics equipment, reducing wiring complexity and en...
- Qu'est-ce que Alimentation tapis activée ? Controller or ramp-agent confirmation that the motorised baggage conveyor belt is energised and ready for loading or off...
- Qu'est-ce que Alpha ? The letter 'A' as spoken in the ICAO phonetic alphabet to avoid confusion in radio communications.
- Qu'est-ce que Altimètre réglé ? Confirms that the aircraft's altimeter has been adjusted to the correct barometric pressure setting, as assigned by ATC ...
- Qu'est-ce que Altitude ? The height of an aircraft above sea level, usually expressed in feet.
- Qu'est-ce que altitude de décision ? Specified altitude in precision approach at which a missed approach must be initiated if runway not in sight.
- Qu'est-ce que Altitude de pression ? The altitude indicated by a barometric altimeter set to the standard pressure setting of 1013.25 hPa or 29.92 inHg. Used...
- Qu'est-ce que Altitude de remise de gaz ? The published altitude to which an aircraft must climb when executing a missed approach or go-around procedure.
- Qu'est-ce que Altitude de transition ? The altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes, and above w...
- Qu'est-ce que altitude densité ? Altitude at which the aircraft feels it is flying based on current pressure, temperature, and humidity, affecting perfor...
- Qu'est-ce que Altitude d’accélération ? The specified altitude after take-off at which an aircraft transitions from take-off power and climb profile to accelera...
- Qu'est-ce que Altitude optimale ? The flight level or altitude that offers the best balance between fuel consumption, aircraft performance, and weather co...
- Qu'est-ce que altitude pression ? Altitude indicated when the altimeter is set to the standard pressure setting of 1013.25 hPa (29.92 inHg).
- Qu'est-ce que altocumulus castellanus ? Medium-level turreted cloud with rising towers indicating mid‑level instability, possible precursor to thunderstorms.
- Qu'est-ce que Amerrissage ? An intentional or emergency landing of an aircraft on a body of water due to operational necessity or system failure.
- Qu'est-ce que Amerrissage d'urgence ? The controlled emergency landing of an aircraft on water.
- Qu'est-ce que Analyse des mégadonnées ? The use of advanced computing techniques to analyze vast amounts of operational data, supporting safety, efficiency, and...
- Qu'est-ce que angle de manette des gaz ? The position or angle of the thrust lever, directly corresponding to engine power demand.
- Qu'est-ce que Angle de route ? The actual direction of an aircraft's path over the ground, expressed as an angle relative to north, independent of head...
- Qu'est-ce que Animal en cabine ? A pet permitted to travel in the aircraft cabin with the passenger, subject to airline policies and operational restrict...
- Qu'est-ce que animal non d'assistance ? An animal on board not trained to assist a person with a disability, such as a pet, requiring specific handling.
- Qu'est-ce que Anneaux de distance ? Circular overlays on a navigation display or chart, spaced at regular intervals from a reference point or airport, used ...
- Qu'est-ce que Annonce passagers ? Any formal communication delivered to passengers by flight or cabin crew via public address system regarding flight info...
- Qu'est-ce que Annuler IFR ? An instruction to terminate the Instrument Flight Rules flight plan.
- Qu'est-ce que Annuler le décollage ? An instruction to abort the takeoff procedure before the aircraft becomes airborne.
- Qu'est-ce que Annuler SID ? An instruction to terminate the Standard Instrument Departure procedure.
- Qu'est-ce que Annuler STAR ? An instruction to terminate the Standard Terminal Arrival Route procedure.
- Qu'est-ce que Antigivrage ? Preventive treatment applied to aircraft surfaces to inhibit the formation of ice during flight or ground operations, us...
- Qu'est-ce que anti‑givrage ? Application of fluid to prevent ice formation during ground operations or flight.
- Qu'est-ce que Appareil électronique portable ? Any small battery-powered electronic item used by passengers, which may interfere with aircraft systems if not managed p...
- Qu'est-ce que Appel en haute fréquence ? The use of HF radio to establish long-distance communications with ATC, commonly required in remote or oceanic airspace.
- Qu'est-ce que Approbation de navigation basée sur la performance ? An operational authorisation indicating an aircraft and crew are approved to operate using specific performance-based na...
- Qu'est-ce que Approbation de remise en service ? Formal written declaration by licensed engineer that aircraft or component is airworthy and fit for return to operation.
- Qu'est-ce que Approbation du minimum de séparation verticale réduite ? An official authorisation for an aircraft and operator to use Reduced Vertical Separation Minimum (RVSM) airspace, allow...
- Qu'est-ce que Approche autorisée ? An instruction indicating that the aircraft is authorized to execute an approach procedure.
- Qu'est-ce que Approche basse ? An approach over the runway where the aircraft descends to runway level but does not land, typically followed by a climb...
- Qu'est-ce que Approche finale ? The segment of an instrument approach procedure in which alignment and descent for landing are completed, extending from...
- Qu'est-ce que Approche GPS ? An instrument approach procedure that uses signals from the Global Positioning System (GPS) for navigation and guidance ...
- Qu'est-ce que Approche ILS autorisée ? An instruction indicating that the aircraft is authorized to execute an Instrument Landing System approach.
- Qu'est-ce que Approche ILS Catégorie II ? Precision approach using ILS equipment with decision height not lower than 100 ft and RVR not less than 300 m.
- Qu'est-ce que Approche ILS Catégorie IIIA ? ILS precision approach with decision height below 100 ft and RVR not less than 200 m; autopilot or HUD guidance required...
- Qu'est-ce que Approche ILS Catégorie IIIB ? ILS precision autoland with no decision height or below 50 ft and RVR as low as 75 m, requiring fail-operational capabil...
- Qu'est-ce que Approche initiale ? The segment of an instrument approach procedure between the initial approach fix and the intermediate or final approach ...
- Qu'est-ce que Approche interrompue ? A procedure followed when a landing cannot be completed.
- Qu'est-ce que Approche RNAV autorisée ? An instruction indicating that the aircraft is authorized to execute an RNAV approach.
- Qu'est-ce que Approche visuelle autorisée ? An instruction indicating that the aircraft is authorized to execute a visual approach.
- Qu'est-ce que Approche VOR autorisée ? An instruction indicating that the aircraft is authorized to execute a VOR approach.
- Qu'est-ce que Approche à vue ? An IFR approach procedure that permits an aircraft under VFR conditions to proceed to the destination airport by visual ...
- Qu'est-ce que approvisionnement en carburant ? Quantity of fuel added during a refuelling operation, expressed in kilograms, litres or pounds.
- Qu'est-ce que Après le point de cheminement ? A routing or procedural instruction indicating action to be taken immediately after passing a specified navigation fix.
- Qu'est-ce que Arc ? A segment of a circle at a fixed distance from a navigation aid, usually flown as part of a procedure turn, approach, or...
- Qu'est-ce que Arc DME ? A curved flight path at a constant distance from a DME station, commonly used in instrument approach procedures to trans...
- Qu'est-ce que arrondi ? Landing manoeuvre in which the pilot raises the nose to arrest the descent rate just before touchdown.
- Qu'est-ce que Arrêt D’un Pack De Climatisation ? An automatic or commanded shutdown of an air conditioning pack due to overtemperature, overpressure, or system fault, im...
- Qu'est-ce que Arrêt moteur ? The procedure in which the aircraft's engines and systems are switched off after reaching the parking position, ending t...
- Qu'est-ce que Assistance en escale ? All services required by an aircraft between landing and take-off, excluding air traffic control services. This includes...
- Qu'est-ce que Assurance qualité des opérations de vol ? A program for analyzing digital flight data to identify, assess, and mitigate operational safety risks, supporting proac...
- Qu'est-ce que ASU connecté ? Confirmation that the Air Start Unit is attached and supplying pneumatic power for engine start procedures on the ground...
- Qu'est-ce que Atmosphère standard internationale ? A model of the atmosphere based on standard average conditions at sea level, used for calibrating instruments and perfor...
- Qu'est-ce que Attendez ? An instruction meaning 'wait and I will call you'; it indicates that the controller or pilot is temporarily unable to co...
- Qu'est-ce que Attendez des vecteurs ? An advisory indicating that the pilot should anticipate receiving radar vector instructions from ATC at a specified time...
- Qu'est-ce que Attendez une nouvelle autorisation ? An instruction indicating that further clearance will be provided at a specified time or location.
- Qu'est-ce que Attendez à ? An instruction to maintain a specific position or altitude until further notice.
- Qu'est-ce que Attente ? To maintain a specific position or altitude, often in a holding pattern.
- Qu'est-ce que Attente en circuit ? A predetermined maneuver which keeps an aircraft within a specified airspace while awaiting further clearance, typically...
- Qu'est-ce que Atterrissage automatique ? A landing performed by the aircraft's autopilot system, typically using ILS signals, requiring minimal pilot input, espe...
- Qu'est-ce que au-dessus du niveau du sol ? An altitude or height measured with reference to the underlying ground surface directly beneath the aircraft.
- Qu'est-ce que aubes statoriques variables ? Adjustable compressor guide vanes that control airflow angle and optimize engine efficiency across operating conditions.
- Qu'est-ce que Audit de sécurité des opérations en ligne ? An observational safety program in which trained auditors monitor routine flight operations to identify threats and erro...
- Qu'est-ce que Augmentation d'équipage ? The practice of adding qualified crew members to the flight crew to allow in-flight rest and ensure regulatory complianc...
- Qu'est-ce que Augmenter la vitesse ? A phrase used to instruct the pilot to increase the aircraft's speed.
- Qu'est-ce que Autorisation de redéploiement ? A flight release authorizing a change of destination or continuation beyond a point after departure, subject to operatio...
- Qu'est-ce que Autorisation de redéploiement ? Official authorization given at a predetermined point, permitting continuation to the planned destination or re-clearanc...
- Qu'est-ce que Autorisation de siège d'appoint ? Permission granted by the operator or authority for a non-operating crew member to occupy a jumpseat in the cockpit or c...
- Qu'est-ce que Autorisation requise pour la performance de navigation requise ? A navigation specification for RNAV operations that requires special aircrew and aircraft authorization before use, typi...
- Qu'est-ce que Autorisation vol de convoyage ? Authority granted to reposition an aircraft without revenue passengers, often under MEL limitations, to maintenance or d...
- Qu'est-ce que Autorisé ? An explicit authorization by ATC for a pilot to proceed under specified conditions within controlled airspace.
- Qu'est-ce que Autorisé approche ILS ? ATC clearance instructing an aircraft to conduct an Instrument Landing System (ILS) approach to a specified runway.
- Qu'est-ce que Autorisé approche RNAV ? ATC clearance authorizing an aircraft to conduct an Area Navigation (RNAV) approach procedure to a specified runway.
- Qu'est-ce que Autorisé approche à vue ? ATC instruction authorizing an aircraft to proceed visually to the airport, maintaining own separation and visual contac...
- Qu'est-ce que Autorisé au décollage ? An air traffic control authorization for an aircraft to depart from a specified runway, indicating that the runway is av...
- Qu'est-ce que Autorisé à l'atterrissage ? An air traffic control authorization for an aircraft to land on a specified runway, indicating that the runway is availa...
- Qu'est-ce que Avertissement de Décrochage ? An alert that warns the pilot of an impending aerodynamic stall, usually through audible or tactile signals like a horn ...
- Qu'est-ce que Avis de résolution du TCAS ? An instruction issued by the aircraft's TCAS system to avoid potential collision with another aircraft, advising a verti...
- Qu'est-ce que Avis numérique aux navigants aériens ? A machine-readable NOTAM provided in digital format for direct integration into flight planning, EFBs, and avionics syst...
- Qu'est-ce que Aérofrein ? A flight control surface deployed by pilots to increase drag and reduce airspeed or descent rate, especially during desc...
- Qu'est-ce que Aérofreins ? Movable surfaces on the wings deployed to reduce lift, increase drag, and assist in decelerating the aircraft after touc...
B
- Qu'est-ce que Bagage cabine ? Passenger-carried items stowed in the aircraft cabin, normally in overhead bins or under seats, and subject to weight/si...
- Qu'est-ce que Bagage enregistré à la porte ? Oversize or excess carry-on item tagged at the boarding gate and stowed in the aircraft hold.
- Qu'est-ce que Bagage à main ? Passenger items approved to remain with the traveler in the cabin and stowed under-seat or in overhead bins.
- Qu'est-ce que Balise allumée ? Indicates that the aircraft's anti-collision beacon lights have been switched on, typically prior to engine start, signa...
- Qu'est-ce que Balise de localisation d'urgence ? A portable beacon transmitting a distress signal for search and rescue, sometimes used interchangeably with ELT in aviat...
- Qu'est-ce que Balise de survie ? A portable transmitter emitting distress signals to assist search and rescue teams in locating survivors after a forced ...
- Qu'est-ce que Barbule de Vent ? A graphic symbol used on meteorological charts to represent wind speed and direction at a specific location and altitude...
- Qu'est-ce que Barre de girt ? Metal bar at the base of the slide pack that secures the slide to the aircraft floor when armed or disengages it when di...
- Qu'est-ce que Barre de pulvérisation ? A component of de-icing or anti-icing equipment that distributes fluid evenly across aircraft surfaces for contaminant r...
- Qu'est-ce que Barre de remorquage ? A metal bar used to connect an aircraft's nose gear to a pushback tractor for towing or pushback operations.
- Qu'est-ce que barres de directeur de vol ? Visual cues on the Primary Flight Display indicating desired pitch and roll to guide manual flight path.
- Qu'est-ce que base des nuages ? Lowest altitude of the visible cloud layer, reported as base of scattered, broken, overcast.
- Qu'est-ce que Basse Pression ? An area of the atmosphere where the pressure is lower than that of the surrounding region, often associated with unsettl...
- Qu'est-ce que Becs de bord d’attaque ? Movable aerodynamic surfaces located on the leading edge of the wing, extended to increase lift at low speeds during tak...
- Qu'est-ce que Bien reçu, j'exécute ? A radiotelephony term meaning 'will comply'; it signifies that the message has been received, understood, and will be co...
- Qu'est-ce que Blocage des commandes de vol ? A condition in which the aircraft's primary or secondary flight control surfaces become unresponsive or stuck due to mec...
- Qu'est-ce que Boissons chaudes ? Beverages such as tea, coffee, or hot water, served by cabin crew. Handling and service must comply with safety procedur...
- Qu'est-ce que Borne de Ravitaillement ? An underground fueling system point on the apron where aircraft can be refueled directly through a hydrant instead of fu...
- Qu'est-ce que borne hydrant carburant ? Fixed valve on apron infrastructure supplying pressurised fuel to hydrant carts or hoses.
- Qu'est-ce que boucle de détection d’incendie ? A continuous sensing circuit that detects overheat or fire in aircraft engines, APU, or cargo bays.
- Qu'est-ce que Bouteille d'extinction incendie moteur ? A pressurized container installed in aircraft engines used to release extinguishing agent when a fire is detected.
- Qu'est-ce que Bouteille d’oxygène ? A portable or fixed cylinder of pressurized oxygen for supplemental breathing in decompression, smoke, or medical events...
- Qu'est-ce que bouteille extincteur ? A pressurized container storing extinguishing agent for aircraft fire suppression in engines, cargo, or APU compartments...
- Qu'est-ce que Boutique à bord ? An onboard retail service offered to passengers, typically involving the sale of duty-free goods during flight.
- Qu'est-ce que Branche de sortie ? The segment of a holding pattern or procedure flown away from the holding fix or navigation aid, typically timed or dist...
- Qu'est-ce que Branche d’entrée ? The segment of a holding pattern or approach procedure flown toward the fix or navigation aid, typically timed or distan...
- Qu'est-ce que Bravo ? The letter 'B' as spoken in the ICAO phonetic alphabet to ensure clarity in radio communications.
- Qu'est-ce que Briefing avant vol ? A mandatory operational meeting or exchange held prior to flight, covering crew assignments, weather, NOTAMs, operationa...
- Qu'est-ce que Briefing de sécurité ? A formal communication given to crew or passengers outlining relevant safety, emergency, and security procedures for the...
- Qu'est-ce que Bulletin de service en attente ? Manufacturer’s recommended modification or inspection not yet incorporated; outstanding action listed in maintenance rec...
- Qu'est-ce que Buse chaude ? A component of ground de-icing equipment that delivers heated anti-icing or de-icing fluid under pressure for effective ...
C
- Qu'est-ce que Cabine prête ? A standardized phrase indicating that the cabin has been fully prepared for takeoff, landing, or other specified phase o...
- Qu'est-ce que Cabine sécurisée ? A procedural phrase indicating that all passengers are seated, seatbelts fastened, and the cabin is safe for taxi, takeo...
- Qu'est-ce que Cabine sécurisée ? Formal statement by cabin crew that all safety checks are completed, all items stowed, doors armed, and the cabin is rea...
- Qu'est-ce que Cache pitot installé ? Protective pitot-tube cover still fitted, blocking dynamic-pressure input and rendering airspeed indications unreliable.
- Qu'est-ce que Cafetière ? A dedicated appliance installed in the aircraft galley to brew hot coffee for passengers and crew. Its operation is subj...
- Qu'est-ce que Cagoule à fumée ? A self-contained hood providing filtered air to crew in smoke or fume-filled environments; enables safe intervention in ...
- Qu'est-ce que calculateur d’augmentation de vol ? A system on Airbus aircraft that provides additional functions such as yaw damping, rudder trim, and flight envelope pro...
- Qu'est-ce que calculateur spoilers-élévateur ? An Airbus computer managing spoilers, elevator backup, and other flight control surfaces for redundancy and flight envel...
- Qu'est-ce que calculateur élévateur-aileron ? A dedicated computer on Airbus aircraft that processes inputs and controls elevator and aileron surfaces.
- Qu'est-ce que Cales ? Wedges placed in front of and behind aircraft wheels to prevent movement when parked.
- Qu'est-ce que Cales retirées ? A confirmation from ground crew that all wheel chocks have been removed and the aircraft is clear to move.
- Qu'est-ce que Camion de restauration ? A ground service vehicle used to deliver food and beverages to an aircraft, typically accessing the rear or forward serv...
- Qu'est-ce que Cap ? The direction in which the aircraft’s nose is pointed, expressed in degrees from magnetic north.
- Qu'est-ce que Cap ? The direction in which an aircraft’s nose is pointed, expressed in degrees from North. May differ from track due to wind...
- Qu'est-ce que Cap suivi ? The intended direction of flight expressed as an angle from North, along which an aircraft is to be flown.
- Qu'est-ce que carburant alterné en route ? Fuel required to fly from the destination to an alternate aerodrome en‑route under planned conditions.
- Qu'est-ce que Carburant bloc ? The total quantity of fuel loaded on board the aircraft before engine start, including fuel for taxi, flight, alternate,...
- Qu'est-ce que Carburant de déroutement ? The amount of fuel required to divert from planned destination to an alternate aerodrome, factoring weather, distance, a...
- Qu'est-ce que Carburant de réserve ? The quantity of fuel carried on board in addition to all planned requirements, intended for unforeseen circumstances and...
- Qu'est-ce que Carburant d’attente ? The quantity of fuel specifically reserved for holding patterns in case of delays before approach or landing.
- Qu'est-ce que Carburant minimum ? A declaration by a pilot indicating that the aircraft has enough fuel to reach the destination but no extra fuel for del...
- Qu'est-ce que Carburant Minimum ? A state where an aircraft’s fuel supply has reached minimum landing level; any additional delay may lead to emergency.
- Qu'est-ce que Carburant pour aéroport de dégagement ? The required fuel quantity to fly from the destination airport to a designated alternate airport, including approach and...
- Qu'est-ce que carburant roulage arrivée ? Estimated fuel required for taxiing after landing, including clearing runway and reaching gate.
- Qu'est-ce que carburant roulage départ ? Fuel required for engine start, taxi, and contingencies before take-off.
- Qu'est-ce que carburant réserve fixe ? Fixed quantity of fuel required to be carried for emergencies as per regulatory minimum reserve rules.
- Qu'est-ce que carburant réserve variable ? Additional reserve fuel calculated proportionally to flight time beyond the fixed reserve, for unforeseen delays.
- Qu'est-ce que Carburant seuil d'alternatif ? The predetermined minimum fuel required at an alternate airport's landing threshold, ensuring safe diversion in case a l...
- Qu'est-ce que Carburant supplémentaire (imprévus) ? The discretionary amount of fuel carried beyond required minimums to address potential delays, weather, or other unfores...
- Qu'est-ce que Carte briefing équipage cabine ? Card summarising aircraft type-specific emergency duties used during crew pre-flight briefing.
- Qu'est-ce que Carte de consignes de sécurité ? Printed card in seat pocket detailing aircraft emergency equipment and evacuation procedures.
- Qu'est-ce que Carte de point d’égalité de temps ? A chart used in flight planning to determine the point at which the flight time to two alternate aerodromes is equal, co...
- Qu'est-ce que Carte de Prévision ? A weather chart produced by meteorological authorities that forecasts the expected positions of pressure systems, fronts...
- Qu'est-ce que Carte de sécurité ? Printed passenger safety-instruction card found in every seat pocket, showing required actions and equipment use in an e...
- Qu'est-ce que Carte de Temps Significatif ? A meteorological chart that displays forecasted significant weather phenomena, including turbulence, icing, and cumuloni...
- Qu'est-ce que Carte d’Altitude ? A meteorological chart depicting wind, temperature, and pressure patterns at specified altitudes above the earth’s surfa...
- Qu'est-ce que Carte d’Analyse de Surface ? A weather chart depicting current meteorological features such as pressure systems, fronts, and precipitation areas at t...
- Qu'est-ce que catégorie A ? A Minimum Equipment List category requiring rectification of an inoperative item within a time period specified in the M...
- Qu'est-ce que catégorie B ? A Minimum Equipment List category requiring rectification of an inoperative item within three consecutive calendar days,...
- Qu'est-ce que catégorie C ? A Minimum Equipment List category requiring rectification of an inoperative item within ten consecutive calendar days, e...
- Qu'est-ce que catégorie D ? A Minimum Equipment List category requiring rectification of an inoperative item within 120 consecutive calendar days, e...
- Qu'est-ce que Catégorie II à autorisation spéciale ? A precision approach and landing operation using Category II minima that requires special authorisation by the state of ...
- Qu'est-ce que Catégorie III à autorisation spéciale ? A precision instrument approach and landing operation with the lowest decision heights and runway visual range (RVR), re...
- Qu'est-ce que Ceinture bébé ? Supplementary loop belt attached to adult lap belt to secure an infant on a guardian’s lap during flight.
- Qu'est-ce que Ceinture de sécurité ? Primary restraint harness securing an aircraft occupant during all phases of flight and turbulence.
- Qu'est-ce que Ceinture pour nourrisson ? Supplementary loop belt that attaches an infant to an adult’s seat belt during taxi, take-off, landing and turbulence.
- Qu'est-ce que Cent ? The ICAO/FAA standard radiotelephony word for the figure '100' when transmitting altitudes, flight levels, and headings ...
- Qu'est-ce que Centre de contrôle maintenance ? Centralized department overseeing aircraft technical status, defect clearance, and authorizing maintenance actions and M...
- Qu'est-ce que Centre de coordination de sauvetage ? A designated center responsible for organizing and coordinating search and rescue operations in a specified area, as def...
- Qu'est-ce que Changement de composant programmé ? Pre-planned replacement of a part or system component at a specified interval or due time according to maintenance sched...
- Qu'est-ce que Changement de composant programmé ? Pre-planned replacement of an aircraft component at specific intervals in accordance with the maintenance schedule.
- Qu'est-ce que Changement de fréquence approuvé ? ATC clearance for the pilot to leave the current frequency, typically when no further communication is required on that ...
- Qu'est-ce que Changement de porte ? A revision in the assigned boarding or arrival gate for an aircraft, typically communicated via airport operations or AT...
- Qu'est-ce que Chargement du service de bord ? The process of loading all required food, beverages, and associated service items onto an aircraft prior to departure, c...
- Qu'est-ce que Chargeur de conteneurs ? A type of ground service equipment used to lift and load cargo containers or Unit Load Devices (ULDs) into the aircraft'...
- Qu'est-ce que Chargeur haute levée ? A high-lift ground support equipment used to load and unload Unit Load Devices (ULDs) or pallets into aircraft cargo hol...
- Qu'est-ce que Chargeur à bande ? A motorized vehicle equipped with a conveyor belt for loading and unloading baggage or cargo into aircraft holds.
- Qu'est-ce que Chariot de boissons ? A service cart used by cabin crew to serve drinks and light refreshments to passengers during the flight, stowed in the ...
- Qu'est-ce que Chariot porte-fret ? A small wheeled platform or trailer used on the ramp to transport ULDs, baggage containers, or cargo pallets between air...
- Qu'est-ce que Chariot service eau ? Ground-service trolley supplying potable-water fill or grey-water drain for aircraft tanks.
- Qu'est-ce que Chariot à bagages ? A vehicle used to transport checked baggage between the aircraft and the terminal during ground handling operations.
- Qu'est-ce que Charlie ? The letter 'C' as spoken in the ICAO phonetic alphabet, used for clarity in radio communications.
- Qu'est-ce que Chef de Rampe ? A supervisory ground crew member responsible for coordinating ramp operations and leading a team during aircraft turnaro...
- Qu'est-ce que Circuit d'attente ? A racetrack-shaped flight path flown to delay an aircraft's approach.
- Qu'est-ce que Circuit du four ? The dedicated electrical circuit that supplies power to ovens in the aircraft galley. Its status is monitored for operat...
- Qu'est-ce que circuit hydraulique bleu ? One of three Airbus hydraulic systems, providing redundancy for flight controls, landing gear, and other powered compone...
- Qu'est-ce que circuit hydraulique de commande de vol ? Hydraulic circuit dedicated to supplying pressure to flight control surfaces such as ailerons, elevators, and rudder.
- Qu'est-ce que circuit hydraulique jaune ? One of three independent hydraulic systems on Airbus aircraft, supplying power to specific flight controls, brakes, and ...
- Qu'est-ce que circuit hydraulique vert ? One of three independent hydraulic systems on Airbus aircraft, powering primary flight controls, landing gear, and other...
- Qu'est-ce que cisaillement du vent ? A sudden change in wind speed and/or direction over a short distance, hazardous during takeoff and landing.
- Qu'est-ce que cisaillement du vent bas niveau ? Wind shear occurring below 2 000 ft AGL, especially hazardous during takeoff and landing phases.
- Qu'est-ce que Clair à droite ? Confirmation that the aircraft’s right side is unobstructed prior to manoeuvre, ensuring wingtip and engine clearance.
- Qu'est-ce que Clair à gauche ? Visual confirmation that the aircraft’s left side is free of obstacles, vehicles or traffic before turning or taxiing.
- Qu'est-ce que Clairance océanique ? ATC authorization required for entry into and flight within oceanic airspace, specifying route, level, and Mach number.
- Qu'est-ce que Cockpit stérile ? A mandatory operational environment during critical phases of flight—such as taxi, takeoff, landing, and below 10,000 fe...
- Qu'est-ce que Code D’état De Piste ? Numeric Value From 0 To 6 Indicating The Braking Action And Surface Condition Of A Runway As Published In A Runway Condi...
- Qu'est-ce que Code transpondeur 7700 ? The ATC transponder code universally set to indicate a general emergency, alerting controllers to an onboard emergency s...
- Qu'est-ce que Coffre à bagages supérieur ? A secure storage compartment above passenger seats used to stow carry-on baggage in the aircraft cabin.
- Qu'est-ce que Collision aviaire ? A collision between an aircraft and one or more birds, often occurring during takeoff or landing and potentially affecti...
- Qu'est-ce que Commande action différée ? Cockpit switch or placard indicating an MEL-approved deferred maintenance item that must not be activated in flight.
- Qu'est-ce que Commande d’évacuation ? A clear, standardized verbal instruction given by crew to passengers to initiate a rapid and orderly evacuation in an em...
- Qu'est-ce que commande numérique totale du moteur ? An electronic system that provides complete automated control of all engine parameters for optimum performance.
- Qu'est-ce que communication par satellite ? A long-range communication system using satellites, enabling cockpit and company contact beyond VHF and HF range.
- Qu'est-ce que Communications de données ? Digital message exchange between air traffic control and aircraft, including CPDLC, ADS-C, and other datalink systems fo...
- Qu'est-ce que communications de liaison de données contrôleur-pilote ? A digital communication system enabling direct text-based exchanges between ATC and pilots via data link instead of voic...
- Qu'est-ce que Communications par liaison de données contrôleur-pilote ? A digital communication system that enables the exchange of messages between air traffic controllers and pilots via data...
- Qu'est-ce que Communications par liaison de données contrôleur-pilote ? A digital communication system enabling direct message exchange between air traffic controllers and pilots via data link...
- Qu'est-ce que Communications satellitaires en bande L ? Satellite-based communication for aircraft using L-band frequencies (1–2 GHz), supporting global voice and data links (I...
- Qu'est-ce que Compacteur à déchets ? A mechanical device installed in the aircraft galley designed to compress and contain cabin waste for efficient storage ...
- Qu'est-ce que Compartiments inférieurs ? The compartments in the lower fuselage of an aircraft, often used for cargo or, on some aircraft, additional fuel storag...
- Qu'est-ce que Composante De Vent Arrière ? Wind Blowing In The Same Direction As Aircraft Movement, Reducing Lift And Increasing Required Take‑Off Or Landing Dista...
- Qu'est-ce que Composante De Vent De Face ? Wind Blowing Opposite To Aircraft Movement, Increasing Lift And Reducing Required Take‑Off Or Landing Distance.
- Qu'est-ce que composante de vent de face ? The component of the wind along the runway axis directed opposite to aircraft’s travel, used for performance calculation...
- Qu'est-ce que Composante De Vent De Travers ? Wind Component Perpendicular To The Runway Centerline, Affecting Aircraft Lateral Control During Take‑Off And Landing.
- Qu'est-ce que Composante vent arrière ? The portion of the wind velocity blowing in the same direction as the aircraft's movement or runway orientation, reducin...
- Qu'est-ce que Composante vent de face ? The part of the wind velocity that blows directly against the direction of travel of the aircraft, improving takeoff and...
- Qu'est-ce que Composante vent de travers ? The part of the wind velocity that is perpendicular to the runway or the aircraft's track, affecting lateral control dur...
- Qu'est-ce que Comptage des personnes ? A manual verification by cabin crew of the total number of passengers and crew on board, used to confirm the manifest an...
- Qu'est-ce que Compte rendu automatique de position ? A position report transmitted automatically by onboard avionics via datalink (CPDLC or ADS-C) at predetermined waypoints...
- Qu'est-ce que Compte rendu de position au point de cheminement ? A mandatory ATC report specifying aircraft position, time, flight level, and estimates for the next waypoint, typically ...
- Qu'est-ce que Compte rendu de position manuel ? A position report provided by a flight crew via voice or datalink, specifying current aircraft location, when automatic ...
- Qu'est-ce que Configuration propre ? An aircraft configuration in which all lift devices such as flaps and slats are retracted and landing gear is up, optimi...
- Qu'est-ce que Connectivité C-Band de cinquième génération ? A communications system using 5G cellular technology in the C-band spectrum for high-speed, low-latency data transfer to...
- Qu'est-ce que Connexion de liaison de données ? A digital communications channel established between aircraft and ATC/dispatch for automatic reporting, clearances, and ...
- Qu'est-ce que Consommable réapprovisionné ? A maintenance log entry confirming replenishment of expendable items such as oil, hydraulic fluid, or oxygen.
- Qu'est-ce que Contact négatif ? Phrase used by pilots to indicate that they do not have visual contact with the reported traffic.
- Qu'est-ce que Contact radar ? Indication that a particular aircraft is identified on the radar display and radar flight following will be provided
- Qu'est-ce que Contactez la tour ? Instruction from ATC to switch radio communication from the current frequency to the aerodrome control tower frequency f...
- Qu'est-ce que Contactez le départ ? ATC instruction to switch radio communication to the departure controller, usually issued shortly after takeoff for enro...
- Qu'est-ce que Contactez le sol ? Instruction from ATC to switch communication to the ground control frequency, typically issued after landing or before t...
- Qu'est-ce que contamination du carburant ? Presence of water, biological growth, particulates or other foreign matter in aviation fuel that renders it unserviceabl...
- Qu'est-ce que Continuez ? An ATC instruction to proceed with the current action or phase of flight without change.
- Qu'est-ce que Continuez l'approche ? An instruction to proceed with the instrument or visual approach but not yet cleared to land.
- Qu'est-ce que Continuez la montée ? An ATC instruction to maintain or resume climbing to a previously assigned altitude or to a new altitude.
- Qu'est-ce que Continuez le roulage ? An instruction to proceed with ground movement along a designated taxi route or surface without stopping or awaiting fur...
- Qu'est-ce que Contrat de surveillance dépendante ? A prearranged automatic reporting agreement (ADS-C) between ATC and aircraft for position, intent, and status data in re...
- Qu'est-ce que Contrat de surveillance dépendante automatique ? A formal agreement, electronically established between an aircraft and ATC ground station, specifying when position, int...
- Qu'est-ce que Contrôle avant décollage ? A required inspection or verification immediately before departure, ensuring that aircraft critical surfaces are free of...
- Qu'est-ce que Contrôle de chargement ? Airline or ground-handling department responsible for planning, monitoring and approving aircraft loads, weight and bala...
- Qu'est-ce que Contrôle de déséquilibre carburant ? Actions taken to monitor and correct uneven fuel distribution between tanks to maintain safe balance and aircraft handli...
- Qu'est-ce que Contrôle De Sécurité De La Cabine ? A safety verification by cabin crew to ensure passengers are seated, seat belts fastened, cabin items stowed, and emerge...
- Qu'est-ce que Contrôle hors phase ? Maintenance inspection not aligned with normal cycle, scheduled according to special interval or condition.
- Qu'est-ce que contrôleur de pression cabine ? Automatic device that regulates cabin altitude and rate of pressure change by controlling the outflow valve.
- Qu'est-ce que Coordonnées de latitude et longitude ? A geographic position expressed in degrees, minutes, and seconds or decimal degrees, specifying a point north or south o...
- Qu'est-ce que Corde d’Évacuation ? Heavy-duty rope stowed above cockpit side windows, used for crew self-evacuation when slides unusable.
- Qu'est-ce que correction de longueur de piste pour pente et température ? Adjustment applied to declared runway length to account for runway slope and ambient temperature effects on aircraft per...
- Qu'est-ce que Coupe-ceinture ? Knife-type tool with guarded blade carried in cockpit or cabin to sever jammed seat-belts during emergency evacuation or...
- Qu'est-ce que coupure d’air de prélèvement ? Automatic closure of bleed air supply due to over-temperature or over-pressure, protecting the system from damage.
- Qu'est-ce que courant‑jet ? A narrow, fast-flowing air current in the upper atmosphere, typically between 20 000 and 50 000 ft, affecting cruise per...
- Qu'est-ce que Course de décollage ? The phase of flight beginning when an aircraft starts its ground run on the runway after take-off clearance, acceleratin...
- Qu'est-ce que Courte finale ? The segment of the final approach path closest to the runway.
- Qu'est-ce que Couverture contre l’hypothermie ? A thermal or space blanket included in survival kits to prevent loss of body heat and treat hypothermia in survivors exp...
- Qu'est-ce que Croisière ? The phase of flight where the aircraft maintains a steady altitude and speed.
- Qu'est-ce que Croisière ? The phase of flight in which the aircraft maintains a steady flight level and speed along the planned route after climb ...
- Qu'est-ce que Croisière à grande portée ? A cruise speed selected for maximum range per unit of fuel on long-haul flights, balancing fuel efficiency and time.
- Qu'est-ce que cumulonimbus encastré ? Cumulonimbus cloud obscured within other cloud layers, not visually identifiable, but with severe turbulence and precipi...
- Qu'est-ce que cumulus bourgeonnant ? Large cumulus cloud with strong vertical development, indicating convective activity, but not yet cumulonimbus.
- Qu'est-ce que câble de mise à la masse ? Flexible conductor that equalises electrical potential between aircraft and refueling equipment to prevent static discha...
- Qu'est-ce que Cône de sécurité ? A brightly colored, cone-shaped marker placed around aircraft or equipment to designate safety zones and prevent collisi...
- Qu'est-ce que Côté piste ? The part of an airport accessible to aircraft, including runways, taxiways, and ramps, but restricted to authorized pers...
- Qu'est-ce que Cœur du courant-jet ? The center of maximum wind velocity within a jet stream, critical for optimizing flight path, fuel efficiency, and turbu...
D
- Qu'est-ce que Danger d'Aspiration ? The danger posed by the suction force of a running jet engine's intake, which can pull in objects or personnel nearby.
- Qu'est-ce que Delta ? The letter 'D' as spoken in the ICAO phonetic alphabet, used for clear identification of taxiways, holding points, or ca...
- Qu'est-ce que densité du carburant ? Measured mass per unit volume of fuel, expressed for aviation as kilograms per litre, used for accurate fuel weight calc...
- Qu'est-ce que Descendez et maintenez ? An instruction to begin descent and level off at the specified altitude, maintaining it until further clearance is issue...
- Qu'est-ce que Descendez à ? An instruction from air traffic control directing an aircraft to decrease altitude to a specified level.
- Qu'est-ce que Descente au ralenti ? A descent procedure where engines are set to idle thrust, allowing the aircraft to descend primarily due to gravity, opt...
- Qu'est-ce que Descente contrôlée ? A procedure for descending to a safe altitude following engine failure at cruise. Aircraft descends along a planned path...
- Qu'est-ce que Descente d'urgence ? A rapid descent by an aircraft in response to an emergency situation.
- Qu'est-ce que Descente d'urgence ? A rapid descent initiated by flight crew in response to a pressurization failure, smoke, or other onboard emergency.
- Qu'est-ce que Descente de croisière ? A descent at a controlled rate while maintaining cruise speed.
- Qu'est-ce que Descente en croisière ? A gradual descent initiated by the pilot or ATC from cruising altitude, often to optimize fuel burn or prepare for arriv...
- Qu'est-ce que Deux ? The ICAO/FAA radiotelephony spelling for the numeral '2'. Used to communicate numbers, headings, altitudes, flight level...
- Qu'est-ce que Diagramme Skew-T Log-P ? A thermodynamic diagram used in meteorology to plot atmospheric soundings, displaying temperature, dew point, and wind p...
- Qu'est-ce que Diffusion automatique dépendante de surveillance - In ? A surveillance function enabling an aircraft to receive and display ADS-B broadcasts from other aircraft, increasing sit...
- Qu'est-ce que Diffusion automatique dépendante de surveillance - Out ? A surveillance technology in which an aircraft automatically broadcasts its position, velocity, and identification deriv...
- Qu'est-ce que Direct vers ? A clearance to fly directly from the present position to a specified navigation fix or waypoint, bypassing intervening f...
- Qu'est-ce que direction du train avant ? The system that allows pilots to steer the aircraft’s nose landing gear during taxi and ground operations.
- Qu'est-ce que direction électrique ? A digital control system where electronic signals, not mechanical linkages, direct the nose-gear steering.
- Qu'est-ce que Directive de campagne flotte ? Mandatory maintenance or modification order issued by the operator or manufacturer, applicable to an entire fleet.
- Qu'est-ce que Directive de navigabilité enregistrée ? Mandatory compliance record entered in technical log documenting completion of authority-issued safety directive.
- Qu'est-ce que disjoncteur électronique ? A digitally controlled switch that protects an electrical circuit from overload by interrupting power supply electronica...
- Qu'est-ce que Dispositif de bord de fuite ? A movable aerodynamic surface located on the trailing edge of an aircraft wing, such as a flap, extended to increase lif...
- Qu'est-ce que Dispositif de bord d’attaque ? A movable aerodynamic surface, such as a slat or Krueger flap, installed on the wing’s leading edge and extended to incr...
- Qu'est-ce que Dispositif de Retenue pour Enfant ? FAA/ICAO-approved seat or harness securing children under two for taxi, take-off, turbulence and landing.
- Qu'est-ce que Dispositif de retenue équipage ? Any safety device, including harness or lap belt, designed to secure flight or cabin crew members in their seats during ...
- Qu'est-ce que Distance ? The measured space between two points, often in nautical miles in aviation contexts.
- Qu'est-ce que distance accélération-poursuite requise ? Distance needed to accelerate to decision speed, experience an engine failure and continue take-off to 35 ft above runwa...
- Qu'est-ce que distance d'atterrissage disponible ? Declared length of runway that is available and suitable for the ground run of an aircraft landing.
- Qu'est-ce que distance d'atterrissage requise ? Calculated distance an aircraft needs to land and come to a complete stop under existing conditions.
- Qu'est-ce que distance de décision disponible ? Distance from threshold to point on runway where go‑around decision altitude is reached, allowing a missed‑approach befo...
- Qu'est-ce que distance de décollage disponible ? Declared length of runway plus clearway that is available and suitable for the ground run of an aircraft taking off.
- Qu'est-ce que distance de roulement au sol ? The distance from brake-release or acceleration point to airplane lift-off during take‑off roll.
- Qu'est-ce que Distance à parcourir ? The remaining distance to a specified point along the planned route, as displayed on the flight management system or req...
- Qu'est-ce que durée d’action ? Estimated time fluid will prevent ice before need for re‑application.
- Qu'est-ce que Débarquement ? The controlled process of passengers and crew leaving the aircraft at the end of a flight, following standard operating ...
- Qu'est-ce que Début de descente ? The calculated point during cruise at which an aircraft initiates descent from cruising altitude toward destination, usu...
- Qu'est-ce que Début de descente ? The calculated point along a flight path where the aircraft begins its planned descent from cruise altitude toward the d...
- Qu'est-ce que Décalage circadien ? The difference between local time and a crew member's biological night, often considered in fatigue management and long-...
- Qu'est-ce que Décalage latéral ? A lateral deviation from a published route, airway, or track, authorized by ATC to avoid weather, traffic, or other haza...
- Qu'est-ce que Décalage parallèle ? A specific type of offset in which the aircraft flies a route parallel to the original track, usually by a set number of...
- Qu'est-ce que décapage du givre ? Removal of existing frost, ice or snow from aircraft surfaces before flight.
- Qu'est-ce que Décision de tanker ? The operational determination to carry extra fuel for economic or logistical reasons, usually based on fuel pricing and ...
- Qu'est-ce que déclencheur pyrotechnique ? A small pyrotechnic device used to rapidly release fire-extinguishing agent by rupturing a fire bottle seal.
- Qu'est-ce que Décollage Avorté ? A procedure in which a take-off is intentionally aborted by the flight crew after the aircraft has started to roll but b...
- Qu'est-ce que Décollage Bleed-Off ? A take-off performed with engine bleed air turned off to optimize thrust, typically when performance-limited.
- Qu'est-ce que Décollage interrompu à basse vitesse ? A rejected take-off initiated at a speed below V1 due to abnormal indications, system failure, or runway hazard (ICAO Do...
- Qu'est-ce que Décollage Température Flex ? Take‑off Using An Assumed Temperature Higher Than Actual To Reduce Thrust And Prolong Engine Life While Meeting Performa...
- Qu'est-ce que Décollage à poussée réduite ? Take-off using less than maximum rated thrust by performance calculation, saving engine life and fuel.
- Qu'est-ce que Décollez via ? An ATC instruction directing the pilot to follow a specified Standard Instrument Departure (SID) or route after takeoff.
- Qu'est-ce que Décompression rapide ? A sudden and unexpected loss of cabin pressure, requiring immediate descent and use of supplemental oxygen.
- Qu'est-ce que Défaillance De La Trappe D’entrée D’air Dynamique ? A malfunction where the ram air inlet door fails to open or close properly, affecting ventilation and cooling of avionic...
- Qu'est-ce que Défaillance du train d'atterrissage ? A failure in the aircraft's landing gear system preventing proper extension or retraction.
- Qu'est-ce que Défaillance du Transpondeur ? The aircraft’s transponder is not transmitting, impacting radar identification and requiring ATC notification and altern...
- Qu'est-ce que Défaillance vanne anti-givre ? Malfunction of wing or engine anti-ice valve preventing hot-air flow, compromising ice protection and requiring flight p...
- Qu'est-ce que Défaut Consigné au Carnet de Bord Cabine ? A discrepancy, malfunction, or abnormality reported by crew and recorded in the aircraft cabin log for maintenance atten...
- Qu'est-ce que Défibrillateur externe automatisé ? A portable device that analyzes cardiac rhythm and delivers electrical shocks to restore normal heart rhythm during card...
- Qu'est-ce que Défibrillateur externe automatisé ? A portable device used to deliver an electric shock to restore normal heart rhythm during sudden cardiac arrest on board...
- Qu'est-ce que Dégagement des Extrémités d'Aile ? The ensured safe distance between an aircraft’s wingtip and any obstacle, structure, or another aircraft during taxiing ...
- Qu'est-ce que Dégagement moteur ? Ground instruction for pilots to apply brief higher thrust to overcome static friction and initiate taxi from standstill...
- Qu'est-ce que Dégagez la piste ? An instruction to exit the runway at the nearest suitable exit.
- Qu'est-ce que Dégivrage ? The process of removing existing ice, frost, or snow from aircraft surfaces, typically wings, tail, and control surfaces...
- Qu'est-ce que dégivrage ailettes ? A system that prevents or removes ice accumulation on the wing leading edges using bleed air or electrical elements.
- Qu'est-ce que dégivrage moteur ? A system that prevents or removes ice formation on engine inlets, typically using hot bleed air.
- Qu'est-ce que délai de réparation ? The maximum period permitted by the MEL for rectifying an inoperative item before mandatory maintenance is required.
- Qu'est-ce que Délai minimum d'escale ? The shortest permissible time required for an aircraft turnaround, defined by airline procedures and airport resources t...
- Qu'est-ce que Démarrage moteur ? The action of starting aircraft engines, typically following ATC clearance. Communicated between flight crew and ground ...
- Qu'est-ce que Démarrage Moteur en Vol ? The procedure of starting an engine during flight, often due to engine flameout or following maintenance.
- Qu'est-ce que Démo de sécurité ? A mandatory demonstration by the cabin crew, conducted prior to takeoff, showing passengers the use of safety equipment ...
- Qu'est-ce que Dépannage requis ? Further diagnostic action needed to isolate cause of technical fault or failure not resolved by initial inspection.
- Qu'est-ce que Départ avec Groupe Auxiliaire de Puissance ? Authorization for a flight to dispatch with the Auxiliary Power Unit (APU) operating or required, usually due to ground ...
- Qu'est-ce que Départ standard ? A pre-planned IFR departure route (SID) published for use by departing aircraft, providing obstacle clearance and effici...
- Qu'est-ce que Déplacement du centrage ? Change in the aircraft’s centre of gravity caused by fuel burn, cargo movement or passenger redistribution, potentially ...
- Qu'est-ce que Déploiement des masques à oxygène ? Automatic deployment of oxygen masks to passengers and crew in the event of a sudden loss of cabin pressure.
- Qu'est-ce que Déploiement des masques à oxygène ? Automatic or manual release of supplemental oxygen masks from the passenger service unit during cabin depressurisation.
- Qu'est-ce que Déploiement des masques à oxygène passagers ? The automatic or manual release of oxygen masks for passengers in response to cabin depressurization or smoke.
- Qu'est-ce que Déploiement du toboggan ? Activation of an inflatable evacuation slide from an aircraft door to enable rapid passenger egress.
- Qu'est-ce que Déploiement Du Toboggan D'évacuation ? The act of activating and extending the inflatable escape slide on an aircraft to facilitate emergency evacuation.
- Qu'est-ce que Dépressurisation de la cabine ? A sudden or gradual loss of cabin pressure, requiring immediate response such as emergency descent and oxygen use.
- Qu'est-ce que Dérive moteur inopérant ? The lateral displacement from track or altitude lost when an aircraft operates with one or more engines inoperative, esp...
- Qu'est-ce que Dérive météorologique ? Deviation from planned track or route due to wind or meteorological factors, often requiring heading or routing adjustme...
- Qu'est-ce que Dérogation à la liste minimale d’équipement ? The operational allowance permitting dispatch or continued operation of an aircraft with certain inoperative items, as l...
- Qu'est-ce que Désaccouple barre de remorquage ? Ground-crew command to release the towbar from the aircraft nose-gear after pushback is complete and brakes set.
- Qu'est-ce que Désarmez les portes ? To set aircraft doors to a disarmed mode so that evacuation slides will not deploy when the door is opened.
- Qu'est-ce que Déséquilibre De Carburant ? A condition in which there is a significant difference in the quantity of fuel between the left and right tanks, potenti...
- Qu'est-ce que Détachement du moteur ? A catastrophic in-flight event where the engine detaches from the aircraft structure, requiring immediate emergency hand...
- Qu'est-ce que Détecteur de fumée ? An electronic device installed in aircraft compartments, especially lavatories and cargo, to detect smoke and trigger an...
- Qu'est-ce que détecteur de particules ? A sensor in an engine or gearbox that detects metallic particles, indicating wear or damage to internal components.
- Qu'est-ce que Détection De Fumée Dans Les Toilettes ? An alert triggered by smoke sensors in the aircraft lavatory indicating possible fire, requiring immediate cabin crew an...
- Qu'est-ce que Détournement d'avion ? The unlawful seizure of an aircraft by an individual or group, often involving threats or force, during any phase of fli...
- Qu'est-ce que Déviation compas ? Error between magnetic compass indication and actual magnetic heading exceeding permissible limits; requires calibration...
- Qu'est-ce que Déviation Complète De La Gouverne De Direction ? A condition in which the rudder deflects fully to one side due to system failure or malfunction, potentially causing sev...
- Qu'est-ce que Déviation de Configuration ? A formally approved variation from the aircraft’s standard configuration as specified in the Configuration Deviation Lis...
E
- Qu'est-ce que Echo ? The letter 'E' as spoken in the ICAO phonetic alphabet, used to avoid miscommunication during ATC radio transmissions, e...
- Qu'est-ce que Eight ? The digit '8' as spoken in the ICAO radiotelephony alphabet, pronounced 'Eight' for clarity in all number transmissions ...
- Qu'est-ce que Emplacement ? A designated area where an aircraft is parked for loading, unloading, or maintenance.
- Qu'est-ce que Emplacement du galley ? The specified location or compartment onboard the aircraft dedicated to the storage and preparation of food and beverage...
- Qu'est-ce que Emplacement gilet de sauvetage ? Designated stowage point of each passenger life jacket, usually beneath seat or in central console.
- Qu'est-ce que Enregistreur à accès rapide ? An on-board device that rapidly records selected flight parameters for operational monitoring and safety analysis, with ...
- Qu'est-ce que entraînement à vitesse constante ? A transmission device that converts variable engine speed to a constant speed for generator operation.
- Qu'est-ce que Entrée d'air dynamique ? An air intake system that uses forward motion of the aircraft to force external air into ducts for ventilation or pressu...
- Qu'est-ce que Entrée dans le réservoir de carburant ? The procedure of authorized personnel physically entering an aircraft fuel tank for inspection, cleaning, or maintenance...
- Qu'est-ce que entrée de carnet de bord ? A formal record in the aircraft technical log documenting the status, action, or deferral of an MEL/CDL item for legal a...
- Qu'est-ce que Entrée De Gouverne De Direction Non Commandée ? An unintentional or spontaneous rudder movement not initiated by the pilot, potentially affecting aircraft yaw stability...
- Qu'est-ce que Entrée de Travail Non-Routine ? A maintenance log entry documenting unscheduled or unexpected technical issues or discrepancies detected during aircraft...
- Qu'est-ce que Entrée directe ? A holding entry method where the aircraft flies directly onto the inbound leg of the holding pattern upon crossing the f...
- Qu'est-ce que Entrée en attente ? The initial maneuver by which an aircraft enters a holding pattern as prescribed, using one of the approved entry proced...
- Qu'est-ce que Entrée en goutte d’eau ? A method of entering a holding pattern in which the aircraft initially flies outbound on a course 30 degrees offset from...
- Qu'est-ce que Entrée parallèle ? A method of entering a holding pattern where the aircraft initially flies outbound parallel to the holding course, then ...
- Qu'est-ce que Escale de repos ? A scheduled break in a flight crew's duty period, typically involving an overnight stay at a destination before resuming...
- Qu'est-ce que Escorte ? The authorized accompaniment of an aircraft, vehicle, or personnel by an assigned entity, usually for safety or security...
- Qu'est-ce que Estimation ? A term used by pilots to indicate the estimated time of arrival at a specific point.
- Qu'est-ce que Ethernet commuté full-duplex pour avionique ? A deterministic, high-speed, full-duplex switched Ethernet network designed specifically for critical avionics systems, ...
- Qu'est-ce que Exercice D'amerrissage D'urgence ? A procedure practiced by cabin crew and passengers for emergency water landings, including life vest use, brace position...
- Qu'est-ce que Exercice de fumée ? A practiced emergency procedure used by flight or cabin crew to respond to smoke or fire in the aircraft.
- Qu'est-ce que Exigence De Montée À L'approche ? The minimum climb gradient that an aircraft must meet during the missed approach phase, considering one engine inoperati...
- Qu'est-ce que extension alternative du train d’atterrissage ? A backup method to deploy the landing gear using gravity, hydraulic, or manual means if the normal extension system fail...
- Qu'est-ce que Extension de Ceinture ? Certified strap and buckle section that lengthens a passenger seat belt when required for fit or special needs.
- Qu'est-ce que Extension manuelle du train d’atterrissage ? The deployment of the aircraft's landing gear using a non-powered, manual backup system in the event of hydraulic or ele...
- Qu'est-ce que Extincteur Halon ? Hand-held extinguisher charged with Halon 1211/1301 for cabin or flight-deck Class B/C fires.
- Qu'est-ce que Extincteur à eau ? A portable fire extinguisher filled with water, intended for use on class A (solid material) fires onboard an aircraft.
- Qu'est-ce que Extincteur à halon ? A fire extinguisher charged with halon gas, used for rapid suppression of onboard electrical and flammable liquid fires.
- Qu'est-ce que Extinction des Deux Moteurs ? A critical emergency in which both engines of an aircraft stop producing thrust due to flameout, often requiring immedia...
F
- Qu'est-ce que Fauteuil roulant (WCHR) ? Wheelchair service code for a passenger requiring assistance to and from the aircraft but able to ascend and descend ste...
- Qu'est-ce que Feu dans la soute à cargaison ? A detected or suspected fire in the aircraft's cargo hold, requiring immediate fire suppression and emergency procedures...
- Qu'est-ce que Feu de l'unité de puissance auxiliaire ? A fire involving the auxiliary power unit, typically located in the aircraft's tail, requiring immediate shutdown and fi...
- Qu'est-ce que Feuille de chargement ? Official weight-and-balance document detailing masses, fuel, distribution and calculated centre of gravity for a specifi...
- Qu'est-ce que Feux anticollision ? High-intensity red or white lights installed on an aircraft and activated before engine start and during all movement to...
- Qu'est-ce que Fiche de tâche achevée ? Documented evidence that all steps of an assigned maintenance task card have been performed and signed off.
- Qu'est-ce que Fiche Technique de Départ ? A formal document or electronic record certifying an aircraft’s airworthiness and readiness for flight after maintenance...
- Qu'est-ce que Filtre à carburant ? A device in the fuel system designed to remove contaminants from aviation fuel before it reaches the engine or fuel syst...
- Qu'est-ce que Finale ? The last leg of the approach path before landing.
- Qu'est-ce que flaperon ? A combined flight control surface that functions as both aileron and flap, used on some aircraft to improve control and ...
- Qu'est-ce que Fluide de type I ? A heated, glycol-based de-icing fluid used primarily to remove frost, ice, and snow from aircraft surfaces before depart...
- Qu'est-ce que Fluide de type II ? A glycol-based anti-icing fluid with higher viscosity than Type I, applied to aircraft surfaces to prevent ice accumulat...
- Qu'est-ce que Fluide de type III ? A low-viscosity anti-icing fluid designed for slower aircraft, offering both de-icing and anti-icing properties with lim...
- Qu'est-ce que Fluide de type IV ? A high-viscosity, anti-icing fluid used on fast, jet aircraft to provide maximum holdover time and surface protection ag...
- Qu'est-ce que Foudroiement ? A direct or indirect electrical discharge from the atmosphere to an aircraft, potentially causing damage to avionics, su...
- Qu'est-ce que Fouille de Sécurité ? An official inspection of an aircraft or passengers by security personnel to ensure no security threats are present.
- Qu'est-ce que Foxtrot ? The letter 'F' as spoken in the ICAO phonetic alphabet, used for taxiway designation, holding points, and callsign clari...
- Qu'est-ce que Freinage manuel ? The act of the flight crew applying the aircraft's wheel brakes by hand or foot, rather than using automatic braking sys...
- Qu'est-ce que friction piste ? Measurement of friction coefficient between tires and runway; indicates braking performance.
- Qu'est-ce que Front Chaud ? A boundary where a warm air mass advances and rises over a retreating cold air mass, usually resulting in steady precipi...
- Qu'est-ce que Front Froid ? A weather front where a cold air mass advances and displaces a warmer air mass, often producing showers, thunderstorms, ...
- Qu'est-ce que Front Occlus ? A composite weather front formed during the process of cyclogenesis when a cold front overtakes a warm front, leading to...
- Qu'est-ce que Fuite de carburant ? An unintentional escape of fuel from tanks, lines, or components, posing a safety and fire hazard requiring immediate no...
- Qu'est-ce que Fuite D’air De Prélèvement ? An unintended escape of high-pressure air from the aircraft bleed air system, which may affect pressurization, anti-ice,...
- Qu'est-ce que Fumigène de signalisation ? Hand-held maritime flare producing coloured smoke during daylight to signal distress location to aircraft or vessels.
- Qu'est-ce que Fumée Dans La Baie Avionique ? Smoke detected in the avionics bay, indicating potential fire or overheating of electronic components, requiring immedia...
- Qu'est-ce que Fumée en cabine ? Presence of smoke in the passenger or flight deck cabin, indicating potential fire requiring immediate attention.
- Qu'est-ce que Fumée en toilette ? The detection or presence of smoke within an aircraft lavatory, indicating a possible fire hazard and requiring immediat...
- Qu'est-ce que Fusée de détresse jour-nuit ? A pyrotechnic signaling device that can be used in both daylight and darkness, included in survival kits for attracting ...
G
- Qu'est-ce que Gants anti-incendie ? Specialized protective gloves provided to crew members for handling hot, burning, or smoldering objects during fire emer...
- Qu'est-ce que Gestion de la foule ? The actions taken by crew to maintain order, direct movement, and prevent bottlenecks during emergency evacuations or ab...
- Qu'est-ce que Gestion de l’information à l’échelle du système ? A global aviation data-sharing infrastructure standardizing information exchange among ATM stakeholders, improving situa...
- Qu'est-ce que Gestion de l’énergie ? Pilot technique balancing airspeed and altitude by trading potential and kinetic energy for efficient trajectory control...
- Qu'est-ce que Gestion des risques de fatigue ? A systematic approach by operators to monitor and manage crew fatigue risk, including procedures, training, and reportin...
- Qu'est-ce que Gestion du centre de gravité ? The active process of monitoring and controlling the aircraft’s center of gravity throughout all flight phases to ensure...
- Qu'est-ce que Gestion du risque de fatigue ? A systematic process, approved by authorities, to manage crew fatigue using scheduling, monitoring, and mitigation strat...
- Qu'est-ce que Gilet de sauvetage ? Personal flotation device provided to each occupant for use during water ditching or sea evacuation.
- Qu'est-ce que Gilet de sauvetage manquant ? Required passenger flotation device absent from its assigned seat location, rendering that position unserviceable until ...
- Qu'est-ce que Gilet de Sauvetage pour Bébé ? Life-jacket sized for infants under 18 kg, equipped with head support, light and tether for water evacuation.
- Qu'est-ce que Gilet de Sauvetage Équipage ? High-visibility life jacket with water-activated light issued to each cabin and flight crew member.
- Qu'est-ce que Givrage ? The accumulation of ice on aircraft surfaces due to supercooled water droplets, which can affect aerodynamics and instru...
- Qu'est-ce que Givrage Blanc ? The formation of rough, milky, opaque ice due to rapid freezing of supercooled water droplets on aircraft surfaces.
- Qu'est-ce que Givrage Du Tube De Pitot ? Ice formation in the pitot tube, which can obstruct accurate airspeed measurement, potentially leading to unreliable or ...
- Qu'est-ce que givrage mixte ? Presence of both rime and clear ice types on aircraft surfaces.
- Qu'est-ce que Givrage par cristaux de glace ? A form of high-altitude icing caused by ingestion of ice crystals into engines, potentially resulting in engine flameout...
- Qu'est-ce que Givrage Transparent ? The formation of smooth, transparent ice on aircraft surfaces, resulting from slow freezing of large supercooled water d...
- Qu'est-ce que Givre ? A rough, white, opaque ice that forms rapidly from supercooled water droplets freezing on aircraft surfaces, reducing ae...
- Qu'est-ce que Glace de ruissellement ? Ice that forms aft of treated surfaces when anti-icing fluids are overwhelmed by supercooled water running back and free...
- Qu'est-ce que Glace transparente ? A transparent, smooth, and hard ice layer formed by the slow freezing of supercooled water droplets on aircraft surfaces...
- Qu'est-ce que Golf ? The letter 'G' as spoken in the ICAO phonetic alphabet, used for clear identification of taxiways, holding points, or ai...
- Qu'est-ce que Goupille de dérivation ? A safety locking pin inserted into the nose gear steering system to disable nose wheel steering during towing or pushbac...
- Qu'est-ce que GPU connecté ? Confirmation that the Ground Power Unit is attached and supplying external electrical power to the aircraft while on the...
- Qu'est-ce que Gradient De Montée Minimum ? Lowest climb gradient required to ensure obstacle clearance or meet procedure design criteria.
- Qu'est-ce que gradient de montée à l’atterrissage ? Minimum climb performance required during a go-around or missed approach with all engines operating.
- Qu'est-ce que grosse goutte surfondue ? Liquid droplets below freezing point that can remain liquid until striking an object.
- Qu'est-ce que groupe auxiliaire de puissance ? A self-contained turbine engine providing electrical and pneumatic power to the aircraft while on the ground or as backu...
- Qu'est-ce que Groupe Climatisation Inopérant ? Indicates a failure of an air-conditioning pack, possibly affecting cabin pressurization and requiring MEL compliance be...
- Qu'est-ce que groupe de conditionnement d'air ? Air conditioning and pressurization units that cool, condition, and regulate the flow of air into the cabin using bleed ...
- Qu'est-ce que Guidage radar ? Heading instructions issued to provide navigational guidance by radar
- Qu'est-ce que Générateur auxiliaire inopérant ? Aircraft auxiliary power unit (APU) generator not providing electrical power, requiring external source for ground opera...
- Qu'est-ce que Générateur d’oxygène chimique ? A device that produces oxygen through a chemical reaction, typically used to supply emergency oxygen to passengers via d...
- Qu'est-ce que générateur à entraînement intégré ? A generator that converts variable engine speed to constant frequency AC power for aircraft electrical systems.
- Qu'est-ce que Génération d’azote ? The production of nitrogen gas, typically onboard, for use in fuel tank inerting systems to prevent combustion.
H
- Qu'est-ce que Hache de secours ? A robust, sharp-edged hand tool stowed in the cockpit, intended for emergency access, fire-fighting, or egress during ev...
- Qu'est-ce que Hache d’urgence ? Cockpit-mounted emergency axe for cutting or prying during evacuation or fire-fighting operations.
- Qu'est-ce que Harnais ? A system of webbing straps used to secure a flight crew member, typically including shoulder and lap belts, to their sea...
- Qu'est-ce que Haute Pression ? An area of the atmosphere where the pressure is higher than that of the surrounding region, often associated with stable...
- Qu'est-ce que Hauteur de franchissement de seuil ? The height above runway threshold at which the aircraft’s glide path crosses the runway during final approach, typically...
- Qu'est-ce que Hauteur de la tropopause ? The altitude at which the troposphere ends and the stratosphere begins, critical for flight planning due to temperature ...
- Qu'est-ce que Heure de vérification ? The exact recorded time at which a de-icing or anti-icing procedure is completed or a specific check (such as a pre-take...
- Qu'est-ce que Heure Zulu ? The standard time reference used in aviation and military operations, equivalent to Coordinated Universal Time (UTC), de...
- Qu'est-ce que Horloge biologique ? The natural internal time-keeping system that regulates physiological activities, directly affecting crew alertness and ...
- Qu'est-ce que Hors de conflit ? An indication that the aircraft is no longer in a conflicting situation with another aircraft.
- Qu'est-ce que hors taxes ? Tax-exempt goods available for purchase on board, relevant for passenger services during flight.
- Qu'est-ce que Hotel ? The letter 'H' as spoken in the ICAO phonetic alphabet, used to identify taxiways, holding points, or callsigns in ATC c...
I
- Qu'est-ce que Ident ? A function on the aircraft transponder that, when activated, causes the radar return to flash on the controller’s screen...
- Qu'est-ce que Ignorer ? A phrase used to instruct the pilot to ignore the previous transmission.
- Qu'est-ce que Impact de la Dérive sur la Piste ? An incident in which the tail of the aircraft contacts the runway surface during take-off or landing due to excessive pi...
- Qu'est-ce que Imprégnation à froid ? A condition in which aircraft fuel, systems, or equipment are cooled for an extended period during high-altitude flight,...
- Qu'est-ce que Imprégnation à froid ? A condition where aircraft fuel or components become extremely cold after prolonged exposure to low outside air temperat...
- Qu'est-ce que Incapable ? A phrase used by pilots to indicate they cannot comply with a specific instruction or clearance.
- Qu'est-ce que Incident de rage à bord ? An incident involving violent, disruptive or aggressive passenger behaviour during flight, endangering safety or order o...
- Qu'est-ce que India ? The letter 'I' as spoken in the ICAO phonetic alphabet, used in ATC communications for identifying taxiways, holding poi...
- Qu'est-ce que India ? The letter 'I' as spoken in the ICAO phonetic alphabet, used in ATC for identifying taxiways, holding points, and aircra...
- Qu'est-ce que Indicateur de situation horizontale ? A cockpit instrument that displays aircraft position relative to navigation aids and selected course, combining heading ...
- Qu'est-ce que Indicateur de temps au sol ? A device or system that records or displays the elapsed time an aircraft spends on the ground between arrival and depart...
- Qu'est-ce que indicateur de température de frein ? A cockpit display or system that monitors the temperature of the main landing-gear brakes to prevent overheating.
- Qu'est-ce que Indicateur radio-magnétique ? An instrument displaying the aircraft's bearing to selected radio navigation aids, combining magnetic heading and bearin...
- Qu'est-ce que Inertage du réservoir ? The process of introducing an inert gas, usually nitrogen, into an aircraft fuel tank to reduce oxygen concentration and...
- Qu'est-ce que Information météorologique significative ? A weather advisory issued by a Meteorological Watch Office concerning significant en‑route weather hazards affecting fli...
- Qu'est-ce que Information météorologique significative cendres volcaniques ? A SIGMET concerning volcanic ash clouds that may affect en‑route flight safety.
- Qu'est-ce que Inspection de maintenance de niveau A ? A scheduled, routine maintenance check performed at regular intervals to ensure the continued airworthiness of the aircr...
- Qu'est-ce que Inspection de maintenance de niveau C ? A comprehensive periodic maintenance inspection performed at longer intervals than A- or B-Checks, involving in-depth sy...
- Qu'est-ce que Inspection des débris étrangers ? A visual and procedural inspection of airport movement areas, particularly runways, taxiways, and aprons, to identify an...
- Qu'est-ce que Inspection du givre ? A mandatory check for frost, ice, or snow contamination on critical aircraft surfaces before departure to ensure safe fl...
- Qu'est-ce que Inspection du moteur par endoscope ? A maintenance procedure using a borescope device to visually inspect the internal components of an aircraft engine for d...
- Qu'est-ce que Inspection lourde de maintenance de niveau D ? An extensive, scheduled maintenance inspection that involves major disassembly, overhaul, and comprehensive structural a...
- Qu'est-ce que Inspection à venir ? Notification that a scheduled inspection interval will be reached within a short time frame, requiring planning.
- Qu'est-ce que Instruction d’ingénierie appliquée ? Formal modification or repair directive implemented and documented by engineering, referenced in aircraft technical reco...
- Qu'est-ce que Instrument ? A term used to describe operations conducted with reference to instruments.
- Qu'est-ce que Intercepter ? A maneuver where an aircraft joins a specified course, radial, localizer, track, or route as instructed by ATC, commonly...
- Qu'est-ce que Interdiction de fumer ? A mandatory cabin safety instruction indicating that smoking is prohibited on board the aircraft.
- Qu'est-ce que Interférence du système mondial de navigation par satellite ? Any deliberate or accidental disruption of GNSS signals affecting navigation and surveillance for aircraft, including ja...
- Qu'est-ce que Interphone cabine ? An internal aircraft communication system that enables direct, secure voice communication between cabin crew, cockpit cr...
- Qu'est-ce que Interphone inopérant ? Internal crew communication system not functioning, affecting cockpit-cabin coordination and triggering MEL action.
- Qu'est-ce que Interrompre le décollage ? To stop the takeoff procedure after it has begun but before the aircraft becomes airborne.
- Qu'est-ce que Intersection ? A point defined by the crossing of two or more airways, radials, or routes, used as a reference for navigation or report...
- Qu'est-ce que Intervention Illicite ? An act of unlawful seizure, threat or attack against an aircraft, its passengers, crew or ground infrastructure that end...
- Qu'est-ce que Intrusion sur la Piste ? Any occurrence at an aerodrome involving the incorrect presence of an aircraft, vehicle, or person on the protected area...
- Qu'est-ce que inverseur de poussée ? A device used to redirect engine thrust forward to assist with deceleration after landing.
- Qu'est-ce que Inverseur de poussée ? A device that redirects the engine's thrust forward to help slow the aircraft after landing, typically activated on touc...
- Qu'est-ce que inverseur de poussée au ralenti ? Minimum reverse-thrust setting used during rollout to aid deceleration while reducing noise, FOD risk, and brake wear.
- Qu'est-ce que Inverseur de Poussée Inopérant ? The thrust reverser mechanism cannot be deployed, requiring alternative braking methods and possibly affecting landing p...
- Qu'est-ce que Inversion de température ? A meteorological condition where temperature increases with altitude instead of decreasing, which can trap pollutants an...
- Qu'est-ce que Irrégularité de service ? Any deviation from normal operating procedures, schedules, or expected service standards during a flight or at the airpo...
- Qu'est-ce que Issue alternative ? A secondary or backup emergency exit designated for use when a primary exit is unusable during evacuation.
- Qu'est-ce que Issue au-dessus de l’aile ? Type-III emergency exit situated above the wing, used by able-bodied passengers to evacuate directly onto the wing surfa...
- Qu'est-ce que Issue bloquée ? An emergency exit or cabin door that cannot be used for evacuation due to obstruction, damage, or outside hazards.
- Qu'est-ce que Issue de secours ? Any aircraft door, hatch or window designated for passenger evacuation in an emergency situation.
J
- Qu'est-ce que Jambe de base ? The flight path at right angles to the landing runway off its approach end.
- Qu'est-ce que Journal de bord cabine ? The official record kept on board for documenting all technical, operational, or passenger-related events and discrepanc...
- Qu'est-ce que Juliett ? The letter 'J' as spoken in the ICAO phonetic alphabet, used in ATC to designate taxiways, holding points, or aircraft i...
K
- Qu'est-ce que Kilo ? The letter 'K' as spoken in the ICAO phonetic alphabet, used to identify taxiways, holding points, or aircraft callsigns...
- Qu'est-ce que Kit de contention ? A set of approved equipment provided to cabin crew for the physical restraint of an unruly or dangerous passenger to ens...
- Qu'est-ce que Kit de démonstration de sécurité ? Standardised set of visual aids and demo seat-belt used by cabin crew to brief passengers on emergency equipment and pro...
- Qu'est-ce que Kit de Précaution Universelle ? On-board kit with gloves, masks and absorbent agents for safe cleanup of blood or body-fluid spills.
- Qu'est-ce que Kit de retenue ? Cabin crew kit containing cuffs, straps or ties used to restrain unruly passengers.
- Qu'est-ce que Kit de retenue de personnel de cabine ? A kit containing handcuffs, tape, and straps for restraining disruptive passengers in accordance with FAA or EASA proced...
- Qu'est-ce que Kit de survie ? A set of equipment carried on board aircraft and liferafts to provide basic survival supplies such as food, water, and s...
L
- Qu'est-ce que Lampe lecture ? Seat-specific overhead lamp in PSU providing adjustable illumination for passengers.
- Qu'est-ce que Lampe torche ? A battery-powered portable light source provided to crew members to assist in emergency evacuations, inspections, or ope...
- Qu'est-ce que Lampe torche d’urgence ? Battery-powered flashlight mounted at crew station for use during evacuation or electrical failure.
- Qu'est-ce que Large bande air-sol de quatrième génération ? A broadband communication system using 4G/LTE technology to provide high-speed data links between aircraft and ground st...
- Qu'est-ce que levier d’aérofrein ? A cockpit control that arms or actuates spoiler panels to reduce speed or rate of descent during flight and landing roll...
- Qu'est-ce que liaison antistatique ? Earthing connection between aircraft and fuelling equipment used to equalise electrical potential and prevent electrosta...
- Qu'est-ce que Liaison de données haute fréquence ? A long-range communication system enabling digital message exchange between aircraft and ground stations via high-freque...
- Qu'est-ce que Lien contrôleur-pilote ? A data communication system (CPDLC) used for direct exchange of messages between air traffic controllers and pilots, esp...
- Qu'est-ce que Ligne de jet ? Light rope fitted with weighted end carried in life-rafts to establish first connection with rescue vessel.
- Qu'est-ce que Ligne de Vie ? Webbing strap secured to over-wing exits, providing hand-hold for passengers evacuating onto wing during ditching.
- Qu'est-ce que Ligne diagonale de traversée ? A painted or marked line intersecting taxiways or apron areas at an angle, indicating where to cross or not cross as ins...
- Qu'est-ce que Ligne directrice de roulage ? A painted marking on an airport surface that provides directional guidance for aircraft taxiing along specific routes.
- Qu'est-ce que Ligne d’arrêt ? A clearly marked line on the surface of an aerodrome, usually at a runway/taxiway intersection, beyond which an aircraft...
- Qu'est-ce que Lima ? The letter 'L' as spoken in the ICAO phonetic alphabet, used in ATC communications for taxiway, holding point, or aircra...
- Qu'est-ce que Limitation d’expédition ? Restrictive condition under which an aircraft may be dispatched due to system defect or MEL, affecting allowable operati...
- Qu'est-ce que Limite d'énergie de freinage ? The maximum energy that aircraft brakes can safely absorb during landing or rejected takeoff, determined by aircraft wei...
- Qu'est-ce que Limite de température du carburant ? The minimum or maximum allowable temperature for fuel in aircraft tanks or lines to prevent fuel waxing or freezing, esp...
- Qu'est-ce que Limite d’autonomie étendue ? A regulatory or operational constraint that restricts the maximum allowable distance or duration for extended range oper...
- Qu'est-ce que liste de déviation de configuration ? An official document specifying permissible aircraft configuration deviations that do not affect safe flight, used for d...
- Qu'est-ce que Liste de vérification critique en temps ? A checklist containing emergency procedures that must be executed immediately to prevent loss of control or further dang...
- Qu'est-ce que Liste de vérification pour situations anormales ? A predefined checklist used by pilots to address abnormal but not emergency situations.
- Qu'est-ce que liste minimale d'équipement ? An official list of equipment required for safe operation of an aircraft, specifying items which may be inoperative unde...
- Qu'est-ce que Liste Minimale d'Équipement ? An approved document listing the minimum equipment required for safe operation of an aircraft, permitting specified inop...
- Qu'est-ce que Liste Minimale d'Équipement de l'Exploitant ? The MEL approved by the state of the operator, tailored to specific airline operations, listing minimum equipment requir...
- Qu'est-ce que Liste Minimale d'Équipement ETOPS ? The Minimum Equipment List applicable to extended-range (ETOPS) flights, specifying the minimum required equipment for o...
- Qu'est-ce que Localizer ? The horizontal guidance component of the ILS, providing lateral alignment with the runway centerline during instrument a...
- Qu'est-ce que Loi De Commande Alternée ? A degraded mode in fly-by-wire aircraft providing limited flight envelope protections, used when normal law is lost due ...
- Qu'est-ce que Loi De Commande Anormale ? A rare fallback flight control law in fly-by-wire aircraft used under severe system failures where no flight envelope pr...
- Qu'est-ce que Loi De Commande Directe ? A degraded flight control mode in fly-by-wire aircraft where control surfaces respond directly to pilot input without fl...
- Qu'est-ce que longueur d'aire d'arrêt ? The length of a stopway usable in the event of a rejected take-off, beyond the take-off run available.
- Qu'est-ce que longueur de l'aire dégagée ? A defined rectangular area beyond the runway, free of obstructions, suitable for aircraft to continue take-off in case o...
- Qu'est-ce que longueur de piste équilibrée ? Runway length at which accelerate-go and accelerate-stop distances are equal under specified conditions.
- Qu'est-ce que longueur de roulement de décollage disponible ? Declared length of runway suitable for the ground run of an aircraft taking off, excluding clearway.
- Qu'est-ce que Longueur De Stopway ? Length Of The Designated Area Beyond The Runway End That Can Be Used To Decelerate During A Rejected Take‑Off, As Part O...
- Qu'est-ce que Lumière d'appel ? An indicator light in the aircraft cabin that signals a passenger is requesting crew assistance.
- Qu'est-ce que Lumière stroboscopique de survie ? Battery-powered high-intensity flashing beacon attached to life-vest or raft to enhance night-time visibility for rescue...
M
- Qu'est-ce que Maintenance prédictive ? A maintenance approach using data analytics, sensors, and machine learning to predict equipment failures and schedule re...
- Qu'est-ce que Maintenez ? An instruction to continue holding a specified altitude, heading, speed, or other parameter until further advised.
- Qu'est-ce que Maintenez l'altitude actuelle ? Instruction to the pilot to continue flying at the present assigned altitude.
- Qu'est-ce que Maintenez le cap piste ? An instruction to continue on the magnetic heading of the runway after takeoff without turning, usually for departure se...
- Qu'est-ce que Maintenez position avant ? An instruction to stop before reaching a specified point, usually a runway or intersection, and not proceed until furthe...
- Qu'est-ce que Maintenir IFR ? A phrase used to instruct the pilot to continue flying under Instrument Flight Rules.
- Qu'est-ce que Maintenir la séparation visuelle ? A phrase used to instruct the pilot to visually keep a safe distance from other aircraft.
- Qu'est-ce que Maintenir sa propre séparation ? A phrase used to instruct the pilot to ensure a safe distance from other aircraft without ATC assistance.
- Qu'est-ce que Maintenir VFR ? A phrase used to instruct the pilot to continue flying under Visual Flight Rules.
- Qu'est-ce que Manifeste des passagers ? An official list of all passengers onboard an aircraft, required by aviation regulations for tracking, safety, and emerg...
- Qu'est-ce que Manuel de référence rapide ? A cockpit manual containing condensed checklists and procedures for abnormal and emergency situations.
- Qu'est-ce que Manœuvre d'Évitement du Cisaillement du Vent ? A predefined and trained maneuver to escape from windshear conditions during takeoff or landing.
- Qu'est-ce que Marche arrière moteur interdite ? A restriction prohibiting aircraft from using engine thrust in reverse to move backward from the gate or stand.
- Qu'est-ce que marcheur d’aile ? Ground personnel positioned at each wingtip to ensure safe clearance of obstacles during aircraft ground movements.
- Qu'est-ce que Marge de température d'huile ? The difference between actual engine oil temperature and the maximum safe operating limit, ensuring safe operation and i...
- Qu'est-ce que Marqueur colorant marin ? Bright fluorescent dye packet released into water to create high-contrast slick, aiding aerial visual location of surviv...
- Qu'est-ce que Masques de rechange ? Additional oxygen masks stored onboard to supplement the fixed oxygen system for crew or passenger use.
- Qu'est-ce que masse au point de stationnement ? The total weight of the aircraft while parked at the ramp, including fuel, payload, and all crew and equipment before en...
- Qu'est-ce que masse opérationnelle de base ? The weight of an aircraft including crew, unusable fuel, and all necessary fluids for operation, excluding payload and u...
- Qu'est-ce que masse à vide opérationnelle ? The weight of an aircraft including all standard items and operating fluids but excluding payload and usable fuel.
- Qu'est-ce que Matrice d’évaluation de l’état de la piste ? A standardized tool used to report runway surface condition for operational decision-making, using runway condition code...
- Qu'est-ce que Matrice D’évaluation De L’état De Piste ? Standardized Tool Used To Assign Runway Condition Codes Based On Surface Type And Contaminant Characteristics, Supportin...
- Qu'est-ce que Mayday ? A distress call indicating a life-threatening emergency requiring immediate assistance.
- Qu'est-ce que Mayday ? International radiotelephony distress signal used to indicate a grave and imminent threat requiring immediate assistance...
- Qu'est-ce que Menace de Bombe ? A reported or suspected presence of an explosive device on board an aircraft or within the airport area.
- Qu'est-ce que Message de trajectoire de route ? An ATC message providing route, track, or clearance information, typically via data link, for flights in procedural airs...
- Qu'est-ce que Message de Vent et Température en Altitude ? A meteorological report providing forecasted wind direction, wind speed, and temperature at specific altitudes above mea...
- Qu'est-ce que Message du système d’indication moteur et d’alerte équipage ? A visual and/or aural alert generated by the Engine Indication and Crew Alerting System (EICAS or ECAM) to inform pilots...
- Qu'est-ce que Message montant de liaison de données contrôleur-pilote ? A digital message sent from ATC to the flight deck over the Controller-Pilot Data Link Communications (CPDLC) system, in...
- Qu'est-ce que mesure corrective ? The specific maintenance or operational step taken to resolve a defect, discrepancy, or deferred item as documented in t...
- Qu'est-ce que Mesure de distance ? The process of determining distance, often by reference to DME (Distance Measuring Equipment) in ATC phraseology.
- Qu'est-ce que micro-rafale ? A small, intense downdraft producing damaging winds near the ground, hazardous to aircraft during takeoff or landing.
- Qu'est-ce que Mike ? The letter 'M' as spoken in the ICAO phonetic alphabet, used in ATC communications to designate taxiways, holding points...
- Qu'est-ce que Mille ? The ICAO/FAA radiotelephony word for '1000', used in expressing altitudes, heights, and visibility in multiples of one t...
- Qu'est-ce que Mineur non accompagné ? A child travelling alone without a legal guardian, requiring airline supervision and special handling procedures as per ...
- Qu'est-ce que Minimas d'exploitation ? The lowest meteorological and operational conditions under which an aircraft may be operated, as published by regulatory...
- Qu'est-ce que minimum de séparation verticale réduite ? A set of airspace procedures allowing aircraft to be separated by 1,000 feet vertically above FL290, increasing airspace...
- Qu'est-ce que Miroir de signalisation ? A reflective device included in survival kits, used to attract attention and signal rescue aircraft or ships in daylight...
- Qu'est-ce que Mise en route approuvée ? ATC clearance authorizing the aircraft to start its engines, typically when pushback is not required.
- Qu'est-ce que Mise en veille de l’ELT ? The procedure of setting the emergency locator transmitter (ELT) to an armed state, ready to activate automatically upon...
- Qu'est-ce que Mode autoland fail-operational ? Autoland logic able to complete flare, touchdown and rollout after any single-component failure below alert height.
- Qu'est-ce que Mode autoland fail-passive ? Autoland configuration where a single failure causes autopilot disengage but leaves aircraft in trim, allowing manual la...
- Qu'est-ce que Mode roulage ? A mode of the autopilot or autoland system engaged after touchdown, controlling the aircraft's direction and deceleratio...
- Qu'est-ce que Module services passager ? Overhead module above each seat row housing reading light, call button, air vent and oxygen mask panel.
- Qu'est-ce que moniteur centralisé électronique d’aéronef ? An Airbus system that displays engine, system, and alert messages for aircraft monitoring and troubleshooting.
- Qu'est-ce que Montez et maintenez ? Instruction for the aircraft to begin climbing to the stated altitude and maintain that altitude when reached.
- Qu'est-ce que Montez via ? An ATC instruction to follow published climb restrictions, altitudes, and routes as depicted in a Standard Instrument De...
- Qu'est-ce que Montez à ? An instruction to initiate a climb to a specific altitude and level off upon reaching it, unless otherwise directed.
- Qu'est-ce que Montée en croisière ? A climb technique where the aircraft climbs at a constant power setting and speed.
- Qu'est-ce que montée finale de décollage ? Climb segment after acceleration and flap retraction up to en‑route climb altitude with one-engine inoperative.
- Qu'est-ce que Montée initiale ? The initial leg of the traffic pattern after takeoff, flown parallel to the runway and in the direction of departure.
- Qu'est-ce que Montée par paliers ? A procedure in which an aircraft increases cruise altitude in steps as weight decreases, optimizing fuel efficiency and ...
- Qu'est-ce que Montée par paliers ? A series of planned altitude increases during cruise, typically due to decreasing aircraft weight from fuel burn, allowi...
- Qu'est-ce que Montée par paliers automatique ? A flight mode or FMS function that automatically commands step climbs as aircraft weight decreases to optimize fuel effi...
- Qu'est-ce que montée segment deux ? Climb segment from gear retraction to acceleration altitude with one-engine inoperative, maintaining prescribed gradient...
- Qu'est-ce que Mèche statique manquante ? Static electricity discharge wick absent from wing or control surface, potentially increasing radio interference until r...
- Qu'est-ce que Mégaphone ? A battery-powered portable loudspeaker used by crew to issue commands and instructions during evacuation or inoperative ...
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- Qu'est-ce que Navigation aérienne tactique ? A military navigation system (TACAN) providing bearing and distance information to aircraft, functionally similar to VOR...
- Qu'est-ce que Navigation de classe deux ? Navigation in airspace where position cannot be reliably fixed using ground-based radio navigation aids, requiring the u...
- Qu'est-ce que Navigation de classe un ? Navigation in airspace where the position of the aircraft can be continuously determined by reference to ground-based ra...
- Qu'est-ce que Navigation de surface ? A method of navigation allowing aircraft operation on any desired flight path within the coverage of navigation aids or ...
- Qu'est-ce que Navigation de surface avec performance de navigation requise ? A navigation specification for aircraft that combines Area Navigation (RNAV) with defined Required Navigation Performanc...
- Qu'est-ce que Navigation en haute latitude ? Navigation procedures and technologies required for flights operating in polar or near-polar regions, often above 78° la...
- Qu'est-ce que Navigation fondée sur la performance ? A framework for area navigation based on required performance standards for accuracy, integrity, and functionality (ICAO...
- Qu'est-ce que Navigation fondée sur la performance ? A navigation specification that requires aircraft to meet specific performance requirements for accuracy, integrity, con...
- Qu'est-ce que Navigation latérale ? A component of navigation relating to the aircraft's position in the horizontal plane (track), including guidance along ...
- Qu'est-ce que Navigation latérale et verticale ? A navigation mode providing both horizontal (lateral) and vertical guidance to the aircraft, commonly used in RNAV and R...
- Qu'est-ce que Navigation par grille ? A navigation technique using a grid reference system rather than true or magnetic north, primarily in polar regions wher...
- Qu'est-ce que Navigation requise dix ? A navigation specification requiring aircraft to maintain a track-keeping accuracy of ±10 nautical miles for at least 95...
- Qu'est-ce que Navigation verticale ? A component of navigation relating to an aircraft's position in the vertical plane (altitude), including climb, cruise, ...
- Qu'est-ce que Niveau ? A generic term used to denote a pilot's cleared vertical position, whether expressed as an altitude, flight level, or he...
- Qu'est-ce que Niveau de congélation ? The lowest altitude in the atmosphere at which the air temperature drops to 0°C (32°F), marking the boundary where liqui...
- Qu'est-ce que Niveau de Température Significatif ? A specific altitude or flight level at which temperature changes are forecast to be significant for flight operations, a...
- Qu'est-ce que Niveau de transition ? The lowest flight level available for use above the transition altitude. Aircraft climbing through the transition altitu...
- Qu'est-ce que Niveau de vol ? A standardised altitude expressed in hundreds of feet, based on a pressure setting of 1013.2 hPa.
- Qu'est-ce que Niveau d’eau potable ? Indicates the current quantity of drinkable water available in the aircraft's potable water tanks; monitored by cabin or...
- Qu'est-ce que Niveau d’eau potable ? The measured amount of safe, drinkable water stored in dedicated aircraft tanks, monitored for passenger and crew needs ...
- Qu'est-ce que niveau moyen de la mer ? An altitude or elevation reference based on the average sea level used as a standard for aviation altimetry.
- Qu'est-ce que Nombre de Mach ? The ratio of the true airspeed of an aircraft to the speed of sound under the same atmospheric conditions. Used in ATC f...
- Qu'est-ce que Nombre de passagers ? The official total number of passengers on board, verified by cabin crew and reported to the flight deck before departur...
- Qu'est-ce que Note d’impact opérationnel ? Written record in technical log noting operational effects or limitations resulting from an aircraft defect, MEL, or def...
- Qu'est-ce que November ? The letter 'N' as spoken in the ICAO phonetic alphabet, used in ATC communications for taxiway and holding point identif...
- Qu'est-ce que nuage cumulonimbus ? Towering vertical cloud with significant turbulence, precipitation, and lightning potential.
- Qu'est-ce que Nuage de Rotor ? A turbulent, low-level cloud formation found downwind of mountain ranges, forming in the rotor zone beneath and near mou...
- Qu'est-ce que Nuage Lenticulaire Stationnaire ? A smooth, lens-shaped cloud that forms at high altitudes in the crest of mountain waves; often stationary, and indicativ...
- Qu'est-ce que numéro de contrôle ? A unique identifier assigned to a deferred defect, MEL/CDL item, or maintenance entry for tracking and compliance.
- Qu'est-ce que Négatif ? A standard radiotelephony term meaning 'No'; used to indicate a negative response or denial.
O
- Qu'est-ce que Objet perdu ? Items belonging to passengers or crew that have been misplaced or left behind on the aircraft or in airport premises.
- Qu'est-ce que Objets trouvés ? The official service or location at an airport or on board where lost property is reported and returned to passengers or...
- Qu'est-ce que Obstruction De La Prise Statique ? An obstruction in the static pressure port of an aircraft, leading to erroneous altitude, airspeed, and vertical speed i...
- Qu'est-ce que Office sécurisé ? A phrase indicating that all galley equipment, carts, and supplies are properly stowed and locked for safe taxi, takeoff...
- Qu'est-ce que Onde orographique ? A standing atmospheric wave created when stable air flows over a mountain or ridge, often causing turbulence and rotor c...
- Qu'est-ce que One ? The digit '1' as spoken in the ICAO radiotelephony alphabet, pronounced as 'One' for clarity in all numerical transmissi...
- Qu'est-ce que Option ? An ATC clearance that permits the pilot to perform a touch and go, stop and go, low approach, or full stop landing at th...
- Qu'est-ce que opérateur casque ? A ground crew member responsible for direct communication with the flight deck during pushback and engine start via inte...
- Qu'est-ce que opérateur de freins ? A qualified person seated in the cockpit of a towed aircraft responsible for applying brakes if necessary during towing ...
- Qu'est-ce que Opérations basées sur la trajectoire ? A concept where aircraft operations are planned, managed, and executed based on a shared, predicted four-dimensional tra...
- Qu'est-ce que Opérations en faible visibilité ? Procedures and requirements for aircraft movements at aerodromes when visibility is reduced below specified minima, incl...
- Qu'est-ce que Opérations prolongées bimoteur ? Operation of twin-engine aircraft on routes where a diversion airport may be more than 60 minutes away at one-engine ino...
- Qu'est-ce que Opérations à portée prolongée ? Flight by any aircraft on routes that place it at a distance from a suitable airport greater than the authorized thresho...
- Qu'est-ce que orage ? Convective weather event with thunder, lightning, precipitation and possible severe turbulence.
- Qu'est-ce que Orbite ? A 360-degree turn in the air to delay or maintain position.
- Qu'est-ce que ordinateur de vol principal ? The Boeing main computer responsible for integrating pilot inputs, aircraft data, and actuating control surfaces.
- Qu'est-ce que ordinateur d’alerte de vol ? A system that processes and displays warnings and cautions to the flight crew in response to abnormal conditions.
- Qu'est-ce que orifice statique ? An external opening on an aircraft that senses ambient atmospheric pressure for use by the pitot-static system.
- Qu'est-ce que Oscar ? The letter 'O' as spoken in the ICAO phonetic alphabet, used in ATC communication for the identification of taxiways, ho...
- Qu'est-ce que Outil d'espacement du trafic aérien ? A controller support system that calculates optimal spacing between arriving and departing aircraft to maximize runway e...
- Qu'est-ce que Outil de libération manuelle ? Hand-held lever used to mechanically disengage an escape slide or raft from the aircraft door during evacuation or maint...
- Qu'est-ce que Oxygène fixe ? A permanently installed aircraft oxygen supply system, providing breathable oxygen to designated cabin or cockpit outlet...
- Qu'est-ce que Oxygène portable ? A movable oxygen supply unit provided on board aircraft for use by crew or passengers in case of medical need or cabin d...
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- Qu'est-ce que Pack de radeau ? A compact package containing the liferaft and emergency equipment required for survival after ditching, stowed on board ...
- Qu'est-ce que Palette de fret ? A flat transport structure used as a base for Unit Load Devices (ULDs) or loose cargo, designed to be moved by forklifts...
- Qu'est-ce que Pan pan ? A radio call indicating an urgent situation that is not immediately life-threatening.
- Qu'est-ce que Pan-Pan ? International urgency signal indicating a situation requiring assistance but not immediately life-threatening.
- Qu'est-ce que Panne Double Moteur ? A critical emergency situation where both engines of a multi-engine aircraft cease functioning in flight.
- Qu'est-ce que Panne du système hydraulique ? A malfunction in the aircraft's hydraulic system, potentially affecting control surfaces, landing gear, or brakes.
- Qu'est-ce que Panne moteur ? A condition where one or more aircraft engines cease to provide thrust, requiring immediate emergency procedures.
- Qu'est-ce que Panneau de Carburant ? An external aircraft access panel containing controls and connections for fuel loading operations, typically located und...
- Qu'est-ce que Panneau de Contrôle des Modes ? The autopilot interface panel allowing pilots to select, arm, or adjust flight modes such as heading, altitude, and vert...
- Qu'est-ce que panneau de contrôle du transpondeur ? Cockpit panel used for selecting, setting, and controlling aircraft transponder modes and codes.
- Qu'est-ce que panneau de spoiler ? A hinged surface on the upper wing that disrupts airflow, reducing lift and increasing drag for roll control or descent.
- Qu'est-ce que Panneau de ventilation ? A dedicated panel or port that allows air pressure equalization or controlled venting in fuel tanks or systems, critical...
- Qu'est-ce que Panneau STOP ? A clearly marked sign on the apron or taxiway instructing aircraft or vehicles to come to a complete stop and await furt...
- Qu'est-ce que Panneau éclairage cabine ? Flight attendant control panel for selecting cabin lighting modes, intensity and colour settings.
- Qu'est-ce que Papa ? The letter 'P' as spoken in the ICAO phonetic alphabet, used in ATC phraseology for the clear identification of taxiways...
- Qu'est-ce que Paquet d'eau d'urgence ? Sealed potable water container included in life-raft survival kit to supply drinking water for occupants in distress.
- Qu'est-ce que Paquet de rations de survie ? Pre-sealed emergency food package stowed in life-rafts providing high-energy biscuits and vitamin tablets for post-ditch...
- Qu'est-ce que Pas de côté ? A maneuver to change from one parallel runway to another during approach.
- Qu'est-ce que Passage au-dessus ? A visual maneuver used to enter the traffic pattern from above the airfield, typically involving an initial pass over th...
- Qu'est-ce que Passager expulsé ? A person who is being sent out of a country by legal order and is being transported by air under escort or supervision.
- Qu'est-ce que Passager indiscipliné ? A passenger whose disruptive or violent behaviour interferes with the safety or order of the flight and crew instruction...
- Qu'est-ce que Passager non admis ? A passenger who is not permitted entry to a country by authorities and must be returned to the point of origin or anothe...
- Qu'est-ce que Passagers en position de sécurité ? Command for passengers to adopt the brace position to minimise injury risk during hard landing or severe turbulence.
- Qu'est-ce que Passant ? A term used by pilots to report the altitude they are currently climbing or descending through.
- Qu'est-ce que Passerelle télescopique ? An enclosed, movable connector that extends from the airport terminal gate to an aircraft door for passenger boarding an...
- Qu'est-ce que Passez sur ? Instruction to change the aircraft's communication radio frequency to another specified ATC unit or frequency.
- Qu'est-ce que Performance de communication requise 240 ? A globally standardized measure for communications capability, latency, and integrity in airspace—‘240’ indicates messag...
- Qu'est-ce que performance de navigation requise ? A set of precision standards for aircraft navigation accuracy, integrity, and reliability within defined airspace or pro...
- Qu'est-ce que Performance de navigation requise ? A statement of the navigation performance accuracy necessary for operation within a defined airspace, expressed as a num...
- Qu'est-ce que Performance localizer avec guidage vertical ? An instrument approach procedure (APV) that provides both lateral and vertical guidance using satellite-based augmentati...
- Qu'est-ce que Perte de pression hydraulique ? A reduction or complete loss of hydraulic system pressure, potentially affecting flight control surfaces, landing gear, ...
- Qu'est-ce que Perte de Pressurisation ? A condition in which an aircraft's cabin fails to maintain the required pressure differential compared to the outside at...
- Qu'est-ce que Perte double du système hydraulique ? A simultaneous failure of two independent hydraulic systems on an aircraft, significantly degrading control and operatio...
- Qu'est-ce que Piste ? A defined rectangular area on a land aerodrome prepared for the landing and takeoff of aircraft.
- Qu'est-ce que piste contaminée ? Runway with >25% surface covered by standing water ≥3 mm, slush, snow, ice.
- Qu'est-ce que Piste dégagée ? Confirmation that the aircraft has exited the runway.
- Qu'est-ce que Pièces en attente d’approvisionnement ? Maintenance action deferred because required replacement part is not yet available in inventory or supply chain.
- Qu'est-ce que plafond ? Height above ground at which an unbroken or overcast cloud layer exists.
- Qu'est-ce que Plan de descente ? The vertical guidance portion of an ILS, providing an optimal descent path to the runway threshold for precision approac...
- Qu'est-ce que Plan de descente ? The vertical guidance component of an Instrument Landing System (ILS) that provides the optimal descent path to the runw...
- Qu'est-ce que Plan de vol électronique ? A digitally filed and managed flight plan, submitted electronically to ATC, airlines, and relevant authorities, allowing...
- Qu'est-ce que Planification de route d'échappement ? The advance definition of contingency flight paths from the main track to a safe diversion airport in case of in-flight ...
- Qu'est-ce que Planification du carburant d’évacuation ? Calculation of the minimum fuel required to depart from an area with operational hazards to a safe location.
- Qu'est-ce que plaque signalétique ? An official sign or label installed in the cockpit or cabin to indicate equipment limitations, status, or required proce...
- Qu'est-ce que Pneu Éclaté ? A condition where an aircraft tyre bursts during taxi, take-off, or landing, possibly affecting braking or steering.
- Qu'est-ce que Poche siège ? Fabric or plastic pocket on seat-back for storing safety card, magazines and small personal items.
- Qu'est-ce que Poignée de gonflage manuelle ? Red-coloured T-handle fitted to an escape slide or life-raft. Pulling it opens the gas cylinder to inflate the raft manu...
- Qu'est-ce que Poignée d’assistance ? A fixed handhold installed near exits or on evacuation slides to aid crew and passengers in maintaining balance or facil...
- Qu'est-ce que Poignée gonflage manuel ? Lever or tab used by passenger to manually inflate life vest after evacuation into water.
- Qu'est-ce que Point ? The ICAO/FAA radiotelephony word for the decimal mark in frequencies and altitudes, ensuring clarity in transmitting fig...
- Qu'est-ce que Point critique ? A position along a route where, in the event of an emergency or abnormal situation, a decision must be made to proceed o...
- Qu'est-ce que Point d'entrée opérations bimoteur longue distance ? The geographic position from which an aeroplane on an approved extended-range twin-engine operation (ETOPS) flight enter...
- Qu'est-ce que Point de carburant décisionnel ? A predetermined point along the route where a decision is made to proceed to the destination or divert based on remainin...
- Qu'est-ce que Point de cheminement LASER ? A specifically named waypoint (LASER) used in navigation or published procedures, commonly appearing in STARs, SIDs, or ...
- Qu'est-ce que Point de cheminement ORA ? A published, named navigation point (ORA) used in RNAV procedures, typically representing a specific fix for routing, en...
- Qu'est-ce que Point de congélation du carburant ? The lowest temperature at which aviation fuel can remain fluid. If fuel cools below this point, it begins to solidify an...
- Qu'est-ce que Point de navigation ? A specific geographical position determined by visual reference, radio aid, or satellite, used in defining air routes, p...
- Qu'est-ce que Point de non-retour ? The specific point on the route after which an aircraft does not have sufficient fuel to return to the departure aerodro...
- Qu'est-ce que Point de redéploiement ? A designated waypoint or position along the route after which flight dispatch is revalidated or amended based on updated...
- Qu'est-ce que Point de transition d'entrée ? The designated waypoint where an aircraft changes from domestic to oceanic or remote-airspace procedures and communicati...
- Qu'est-ce que Point d’approche interrompue ? A specified point in an instrument approach procedure at which a missed approach must be initiated if the required visua...
- Qu'est-ce que Point d’attente ? A specified point, identified by navigation aids or coordinates, at which an aircraft may be instructed to hold.
- Qu'est-ce que Point d’entrée océanique ? The specific waypoint where an aircraft transitions from domestic to oceanic airspace, usually involving a procedural cl...
- Qu'est-ce que Point d’égalité de carburant ? A point along the route where the fuel required to return to the departure airport equals the fuel required to continue ...
- Qu'est-ce que Point d’égalité de temps ? A calculated position along the planned route where the time required to continue to a suitable alternate aerodrome is t...
- Qu'est-ce que Point intermédiaire ? A designated point on an instrument approach procedure (IAP) between the initial and final approach fixes, used to defin...
- Qu'est-ce que Point à temps égal ? The geographic point along a route at which the flying time to two selected diversion aerodromes is equal, used for cont...
- Qu'est-ce que Points de cheminement ? Specific geographical locations defined by coordinates used to guide aircraft along a flight route or procedure.
- Qu'est-ce que Pompe d’appoint ? An electrically or hydraulically operated pump used to supply fuel under pressure from tanks to engines, especially duri...
- Qu'est-ce que pompe hydraulique ? A device that moves hydraulic fluid under pressure to operate aircraft systems such as landing gear, brakes, and flight ...
- Qu'est-ce que Ponctualité des vols ? A metric reflecting the punctuality of flights, indicating whether aircraft departures or arrivals occurred at the sched...
- Qu'est-ce que Porte ? A designated area at an airport where passengers board or disembark from an aircraft.
- Qu'est-ce que Porte cargo ? Large exterior hinged or plug-type door on the aircraft fuselage used for loading and unloading freight or baggage conta...
- Qu'est-ce que Porte de service ? A designated aircraft door used primarily for catering, cleaning, or maintenance services, not intended for passenger us...
- Qu'est-ce que Porte fermée ? Indicates that all required aircraft doors are physically closed, typically before engine start or pushback.
- Qu'est-ce que Porte ouverte ? Confirms that one or more aircraft doors are physically open, typically during boarding, deplaning, or servicing.
- Qu'est-ce que portée visuelle de piste ? The distance over which a pilot of an aircraft on the centre line of a runway can see the runway surface markings or lig...
- Qu'est-ce que Portée visuelle de piste soixante-quinze mètres ? Reported horizontal distance a pilot can see runway markings or lights, measured at 75 metres for CAT IIIB minima.
- Qu'est-ce que Position berceau bébé ? Approved seat row and attachment point where an aircraft baby bassinet may be installed and locked.
- Qu'est-ce que Position de crash ? A prescribed body posture adopted by crew and passengers to maximize survivability in the event of an imminent impact or...
- Qu'est-ce que Position De Protection ? A body position adopted by passengers and crew to minimize injury during an imminent impact or emergency landing, as per...
- Qu'est-ce que Poste éloigné ? An aircraft parking stand located away from the terminal building, typically requiring bus transport for passengers.
- Qu'est-ce que Postes de Stationnement ? Designated areas on the apron where aircraft are parked for boarding, servicing, or loading/unloading operations.
- Qu'est-ce que Posé-décollé ? A maneuver in which an aircraft lands on a runway and immediately takes off again without coming to a full stop.
- Qu'est-ce que Poubelle office ? Fire-retardant container in the galley for collection of cabin refuse; equipped with self-closing lid.
- Qu'est-ce que Poursuivez la descente ? An ATC instruction directing the pilot to maintain the ongoing descent to a specified level or altitude without interrup...
- Qu'est-ce que Poussée Continue Maximale ? The highest level of engine thrust that can be used continuously without time limitation under normal operating conditio...
- Qu'est-ce que Poussée De Décollage Dératée ? Reduced engine thrust setting used for take-off to extend engine life, improve fuel efficiency, and meet noise abatement...
- Qu'est-ce que Poussée De Décollage Réduite ? Thrust Less Than Maximum Take‑Off Thrust Applied During Take‑Off To Increase Engine Life And Optimize Operational Effici...
- Qu'est-ce que Poussée dératée ? Engine rated for lower maximum take-off thrust than certification limit, permanently reducing stress and maintenance cos...
- Qu'est-ce que Premier fluide ? The initial de-icing or anti-icing fluid applied to remove contaminants from aircraft surfaces, typically a heated mixtu...
- Qu'est-ce que Pression Barométrique ? The atmospheric pressure as measured by a barometer, used to determine altimeter settings and to ensure altitude accurac...
- Qu'est-ce que Pression cabine ? The controlled air pressure within an aircraft cabin, maintained to ensure passenger safety and comfort at altitude.
- Qu'est-ce que pression d'huile moteur ? The pressure of oil circulating through an aircraft engine, essential for lubrication and cooling of moving components.
- Qu'est-ce que Pression de la buse ? The pressure at which de-icing or anti-icing fluid is delivered through equipment nozzles, affecting spray coverage and ...
- Qu'est-ce que Pression du toboggan ? Gauge-indicated reservoir pressure that confirms an emergency evacuation slide is sufficiently charged for rapid inflati...
- Qu'est-ce que Processus de démarrage sécurisé ? A cryptographic method that ensures only authorized software can be loaded on avionics systems during startup (EASA, ICA...
- Qu'est-ce que Processus du système de gestion de la sécurité ? A structured set of procedures within an SMS for identifying, assessing, and mitigating operational safety risks in avia...
- Qu'est-ce que Prochain point de cheminement ? The upcoming predefined navigation fix along a flight route, as programmed in the flight management system and used for ...
- Qu'est-ce que Procédez direct ? An ATC instruction authorizing an aircraft to fly directly to a specified point, bypassing the previously assigned route...
- Qu'est-ce que Procédez via ? An ATC instruction directing an aircraft to follow a specified route, airway, or series of waypoints.
- Qu'est-ce que Procédure alternative requise ? Standard operating sequence unavailable; crew must follow officially published alternate or contingency checklist.
- Qu'est-ce que Procédure anormale ? A specific set of steps followed by pilots to address system malfunctions or unusual situations not classified as emerge...
- Qu'est-ce que Procédure de contingence ? A predetermined sequence of actions to be followed when an abnormal or emergency situation occurs during flight, as defi...
- Qu'est-ce que Procédure de descente en dérive ? A contingency descent profile followed after an engine failure at cruise altitude to achieve the aircraft’s new single-e...
- Qu'est-ce que Procédure de départ standard aux instruments ? A published IFR departure procedure providing specific routing, altitude, and navigational guidance for departing aircra...
- Qu'est-ce que procédure de maintenance ? A required action by maintenance personnel to address an MEL/CDL item, often prerequisite for dispatch or rectification.
- Qu'est-ce que Procédure de turbulence ? A set of operational safety steps followed by flight and cabin crew when turbulence is encountered or anticipated, inclu...
- Qu'est-ce que Procédure de turbulence ? A set of prescribed actions for flight crew to follow when encountering turbulence, including changes in altitude, speed...
- Qu'est-ce que Procédure d’approche avec performance de navigation requise et autorisation nécessaire ? A specific approach procedure requiring both Required Navigation Performance (RNP) and explicit operational authorisatio...
- Qu'est-ce que Procédure d’arrivée standard ? A published IFR route that provides standardized lateral and vertical guidance for arriving aircraft from the en-route s...
- Qu'est-ce que procédure opérationnelle ? A mandatory action or set of actions required by flight crew to safely operate an aircraft system, especially with an ME...
- Qu'est-ce que Procédures de basse visibilité ? Aerodrome ground-movement and approach rules activated whenever reported runway visual range falls below published minim...
- Qu'est-ce que Procédures mémorisées ? A set of critical procedures that flight crew must perform from memory during certain emergencies without consulting che...
- Qu'est-ce que Profil de montée par paliers ? A flight profile in which an aircraft increases cruise flight level in stages as weight decreases and conditions permit,...
- Qu'est-ce que Profondeur De Contamination Par L’eau ? Vertical Thickness Of Water, Slush, Or Other Moisture‑Related Contaminants On The Runway Measured In Millimetres For Per...
- Qu'est-ce que Prolongation du temps de protection ? An officially authorized increase in the maximum allowable holdover time beyond standard tables, based on improved weath...
- Qu'est-ce que Prolongation d’intervalle de rectification ? Formal approval to extend the allowable period for repair of a deferred defect beyond original MEL interval.
- Qu'est-ce que Protection alpha-floor ? Autothrust safeguard that commands maximum thrust if angle-of-attack approaches stall, preventing loss of lift.
- Qu'est-ce que Protection beta-target ? Flight-laws function holding safe sideslip target during engine-out or crosswind approach to maintain directional contro...
- Qu'est-ce que prélèvement de carburant ? Procedure of drawing a representative fuel sample from tanks or hydrant points to check for water, particulates or other...
- Qu'est-ce que Prévision de tendance à court terme (TREND) ? A TREND appended to a METAR or SPECI giving expected significant changes in surface wind, visibility, weather or cloud o...
- Qu'est-ce que Prévision de zone pour vols à basse altitude (GAMET) ? A GAMET area forecast describing significant weather below FL100 (or FL150 over mountainous terrain) within a FIR, suppo...
- Qu'est-ce que Prévision d’aérodrome terminale ? A concise statement of the expected meteorological conditions at an aerodrome for a specified period.
- Qu'est-ce que Prévoir ? Used by ATC to advise pilots of anticipated instructions or clearances, such as altitude changes or approach clearances,...
- Qu'est-ce que Pré‑démarrage ? The phase prior to engine start during which pilots perform pre‑start checklists, request clearances, and coordinate wit...
- Qu'est-ce que Prêt pour le départ ? A phrase used by pilots to indicate they are prepared to begin the takeoff roll.
- Qu'est-ce que Prêt pour le repoussage ? A phrase used by pilots to indicate they are prepared for the aircraft to be pushed back from the gate.
- Qu'est-ce que Prêt pour le roulage ? A phrase used by pilots to indicate they are prepared to begin taxiing.
- Qu'est-ce que Prêt à copier ? A phrase used by pilots to indicate they are prepared to receive and write down instructions or clearances.
- Qu'est-ce que Puisard de carburant ? A low point or reservoir in an aircraft fuel tank or system where water, debris, and contaminants collect and can be dra...
- Qu'est-ce que Puissance de montée ? A reduced engine power setting selected after take-off and acceleration, used for the climb phase to minimize engine wea...
- Qu'est-ce que Pâte détectrice d'eau ? A chemical indicator applied to the end of a fuel tank dipstick to detect the presence of water at the bottom of aviatio...
- Qu'est-ce que Pénalité de Performance ? A reduction in aircraft performance, such as climb, takeoff, or landing, resulting from inoperative systems or configura...
- Qu'est-ce que Pénalité de Poids ? An increase in operational weight or a reduction in allowable weight imposed due to specific inoperative equipment or co...
- Qu'est-ce que Période de repos en couchette ? A scheduled period during a flight in which a crew member is off duty and resting in a designated bunk or crew rest faci...
Q
- Qu'est-ce que QFE (Réglage altimètre à l’altitude seuil de piste) ? An altimeter reference setting in which the altimeter indicates the height above the runway threshold elevation; used fo...
- Qu'est-ce que QNH ? The altimeter subscale setting that causes the altimeter to read elevation above mean sea level at an airfield. Used pri...
- Qu'est-ce que Quantité Hydraulique Faible ? Indicates that the fluid level in a hydraulic reservoir is below the specified minimum for safe system operation.
- Qu'est-ce que Quatre ? The ICAO/FAA radiotelephony spelling for the numeral '4'. Used to clearly communicate headings, altitudes, frequencies, ...
- Qu'est-ce que Quebec ? The letter 'Q' as spoken in the ICAO phonetic alphabet, used in ATC phraseology for identification of taxiways, holding ...
- Qu'est-ce que Quitte ? Used by pilots to report they are vacating a specific altitude, either climbing or descending from it.
- Qu'est-ce que Quitter la voie aérienne ? An instruction to exit a designated airway.
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- Qu'est-ce que Radiale VOR ? A specific magnetic bearing from a VOR station, identified by its radial number, used for aircraft navigation and ATC in...
- Qu'est-ce que radio haute fréquence ? Radio system operating in the HF band (3–30 MHz), enabling long-distance voice communication between aircraft and ATC.
- Qu'est-ce que radio très haute fréquence ? Radio system in the VHF band (118–137 MHz) used for primary ATC voice communication within line-of-sight range.
- Qu'est-ce que Radio VHF 1 Inopérante ? Primary VHF radio channel 1 is not functional, requiring use of alternate radio or backup for ATC communications.
- Qu'est-ce que radio-navigation omnidirectionnelle VHF ? A ground-based radio navigation system providing azimuth guidance to aircraft using VHF signals.
- Qu'est-ce que radiobalise non directionnelle ? A ground-based radio transmitter used for navigation, providing direction by reference only.
- Qu'est-ce que Radioborne ? A radio transmitter used in the ILS to provide pilots with range information along the approach path, typically located ...
- Qu'est-ce que Radiophare d’alignement ? The component of an Instrument Landing System (ILS) that provides lateral guidance to align the aircraft with the runway...
- Qu'est-ce que Radiophare non directionnel ? Low-frequency radio beacon transmitting a non-directional signal that pilots track with an ADF receiver.
- Qu'est-ce que Radiophare omnidirectionnel VHF ? Ground-based VHF radio beacon providing 360-degree azimuth guidance to aircraft.
- Qu'est-ce que rafale ? A sudden, brief increase in wind speed, typically varying with rapid fluctuations.
- Qu'est-ce que Ralentir ? A phrase used to instruct the pilot to reduce speed.
- Qu'est-ce que rangée de sortie ? Row of seats adjacent to an emergency exit, where passengers have responsibilities for assisting in case of evacuation.
- Qu'est-ce que rapport de conditions de piste ? Aerodrome-issued report of runway surface condition using RCAM and RWYCC.
- Qu'est-ce que Rapport de difficulté de service ? Official report filed to aviation authority documenting significant aircraft/system in-service malfunction, defect, or r...
- Qu'est-ce que Rapport de défaut de l’équipage de conduite ? Written logbook entry by flight crew describing observed technical defect or malfunction requiring maintenance action.
- Qu'est-ce que rapport de défaut différé ? A formal record noting a defect which has been deferred under MEL/CDL procedures, including details of rectification pla...
- Qu'est-ce que Rapport de position ? A report made by a pilot to ATC providing the aircraft's current position, altitude, and other relevant information.
- Qu'est-ce que rapport de pression moteur ? Ratio of total pressure at the engine exhaust to that at the engine inlet, used as a primary engine thrust indicator.
- Qu'est-ce que Rapport D’action De Freinage ? Pilot‑reported Assessment Of Actual Aircraft Braking Performance On A Runway Surface.
- Qu'est-ce que Rapport météorologique d’aérodrome ? Routine coded weather observation for a specific aerodrome at a specific time.
- Qu'est-ce que Rapport spécial d’aérodrome ? An unscheduled aerodrome weather report issued when significant meteorological changes occur between routine METARs.
- Qu'est-ce que ravitaillement en point unique ? Method of pressurised refueling using one connector that simultaneously feeds all aircraft tanks.
- Qu'est-ce que ravitaillement sous pression ? Refueling by forcing fuel under pressure through a closed coupling to aircraft tanks.
- Qu'est-ce que ravitaillement sur l'aile ? Refueling conducted from a hose and nozzle inserted into the over-wing filler port.
- Qu'est-ce que Re-autorisation de route ? An amended ATC clearance that modifies the previously cleared route, typically issued to avoid weather, airspace restric...
- Qu'est-ce que Recherche sur la gestion du trafic aérien du Ciel Unique Européen ? A pan-European collaborative project (SESAR) for research and development of next-generation air traffic management, sta...
- Qu'est-ce que Recyclage avion ? The time taken to unload an arriving aircraft and prepare it for departure, including disembarkation, cleaning, refuelin...
- Qu'est-ce que Redispatch de vol ? The in-flight process whereby operational control re-evaluates conditions and issues a new release for the remainder of ...
- Qu'est-ce que Rejoignez ? Instruction to intercept and follow a specified route, airway, arrival procedure, or traffic pattern.
- Qu'est-ce que Rejoignez la base ? Instruction to enter the circuit on the base leg, a perpendicular segment to final approach before landing.
- Qu'est-ce que Rejoignez la vent arrière ? An instruction to enter the traffic circuit on the downwind leg, parallel to and opposite direction of landing runway.
- Qu'est-ce que Rejoindre finale ? An instruction to align the aircraft with the final approach path for landing.
- Qu'est-ce que Rejoindre la voie aérienne ? An instruction to enter and follow a designated airway.
- Qu'est-ce que Relecture ? A procedure where the receiving station repeats a received message or its pertinent parts to confirm accurate reception.
- Qu'est-ce que Relecture correcte ? A phrase used by ATC to confirm that the pilot's readback of instructions is accurate.
- Qu'est-ce que Relèvement ADF ? The direction to or from a Non-Directional Beacon as indicated by the aircraft's Automatic Direction Finder equipment, r...
- Qu'est-ce que Remise de gaz ? An aborted landing approach, requiring the aircraft to climb and reattempt landing.
- Qu'est-ce que Remise de gaz ? A published procedure to be followed when an instrument approach cannot be completed to a landing due to loss of require...
- Qu'est-ce que Remonter la piste ? A procedure whereby an aircraft taxis in the opposite direction of take-off or landing on a runway to reach the threshol...
- Qu'est-ce que Renforcement de la cybersécurité ? The process of applying security measures to reduce cyberattack risk on aircraft systems and networks (EASA, ICAO Doc 10...
- Qu'est-ce que Renversement de l’avis de résolution du système d’alerte de trafic et d’évitement de collision ? An updated TCAS alert that instructs the flight crew to reverse a previously issued vertical avoidance maneuver due to a...
- Qu'est-ce que Repas spécial ? A meal specially requested to meet specific dietary, religious, or medical requirements for individual passengers, to be...
- Qu'est-ce que Replanification en vol ? Modification of the flight plan while airborne, in response to operational, weather, or airspace constraints.
- Qu'est-ce que report ? A formal process allowing a non-essential inoperative item to be left unrepaired for a specified time under MEL/CDL limi...
- Qu'est-ce que Repos anticipé de l’équipage ? A scheduled rest period before or during a flight, provided to designated crew members to meet fatigue management or reg...
- Qu'est-ce que Repoussage ? The procedure of moving an aircraft rearward from a gate or stand using a tow vehicle, under ground control instructions...
- Qu'est-ce que Repoussage approuvé ? An air traffic control authorization allowing an aircraft to begin pushback from the gate or stand, typically in coordin...
- Qu'est-ce que Repoussage et mise en route approuvés ? ATC clearance authorizing an aircraft to begin pushback from the gate and start engines.
- Qu'est-ce que Repoussage retardé ? Notification that pushback clearance or procedure is postponed due to operational, technical, or ATC constraints.
- Qu'est-ce que Reprenez votre navigation ? Instruction for the pilot to return to their own pre-filed or previously assigned route after deviation or vectoring.
- Qu'est-ce que Repère d’approche finale ? A designated point in an instrument approach from which the final approach segment to the runway begins.
- Qu'est-ce que Repère d’azimut/distance ? A specified position defined by the intersection of a bearing from a navigation aid and a measured distance, used for fi...
- Qu'est-ce que Repère initial d’approche ? A designated point where an aircraft initiates the instrument approach procedure for a specific approach segment, leadin...
- Qu'est-ce que Restriction d'altitude ? A specified altitude that an aircraft must not exceed or descend below.
- Qu'est-ce que Restriction d’altitude ? A published or assigned restriction that requires an aircraft to cross a specific point at, above, or below a certain al...
- Qu'est-ce que Reçu ? A standard radiotelephony term meaning 'I have received all of your last transmission'; it does not imply compliance or ...
- Qu'est-ce que reçu de carburant ? Document provided by the fuel supplier showing quantity, density, time and place of fuel uplift, signed by the aircraft ...
- Qu'est-ce que Romeo ? The letter 'R' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to identify taxiways, holding points, an...
- Qu'est-ce que Roulage ? To move an aircraft on the surface of an aerodrome under its own power, except when taking off and landing. Used in ATC ...
- Qu'est-ce que Roulage vers ? An ATC instruction authorizing an aircraft to proceed under its own power to a specified location on the aerodrome, such...
- Qu'est-ce que Roulage via ? An ATC instruction specifying the taxi route an aircraft must follow, indicating designated taxiways and any other routi...
- Qu'est-ce que Roulage à l’arrivée ? The movement of an aircraft under its own power from the runway or landing area to the assigned parking position or gate...
- Qu'est-ce que Route (trajectoire prévue) ? The intended horizontal direction of travel of an aircraft over the ground, usually expressed in degrees from North.
- Qu'est-ce que Route ATS ? A defined corridor in controlled airspace designated for the use of aircraft flying under Air Traffic Services, with spe...
- Qu'est-ce que Route ATS supérieure ? A designated corridor in controlled airspace, typically above a specified flight level (e.g., FL245), for use by aircraf...
- Qu'est-ce que Route aérienne polaire ? A designated transcontinental flight path passing over the polar regions, generally used for efficient intercontinental ...
- Qu'est-ce que Route aérienne tropicale ? An airway or designated flight route that traverses tropical climate regions, often with unique meteorological and navig...
- Qu'est-ce que Route de cendres volcaniques ? A temporary route planned to avoid areas of volcanic ash, based on current volcanic activity and advisories.
- Qu'est-ce que Route magnétique ? The direction of flight over the ground with respect to magnetic north, obtained by correcting true course for magnetic ...
- Qu'est-ce que Route Nord-Atlantique ? A designated system of daily updated routes for transatlantic flights between Europe and North America, coordinated and ...
- Qu'est-ce que Route Nord-Pacifique ? A designated organized track system for flight operations across the North Pacific between North America and Asia, updat...
- Qu'est-ce que Route RNAV ? A published airway or route defined by area navigation (RNAV) waypoints, allowing aircraft to fly direct between points ...
- Qu'est-ce que Route vraie ? The intended direction of flight over the ground referenced to true north, prior to adjustment for wind, magnetic variat...
- Qu'est-ce que Route à réaction ? A designated airway in controlled airspace, typically for aircraft operating at high altitudes (usually above FL180 in t...
- Qu'est-ce que Route équatoriale ? A specific flight route crossing or lying close to the equator, designed for optimal navigation in equatorial regions.
- Qu'est-ce que Râtelier magazines ? Dedicated stowage for in-flight magazines, often at galley or bulkhead area.
- Qu'est-ce que Réclamation client ? A formal expression of dissatisfaction made by a passenger regarding any aspect of airline service, safety, or comfort.
- Qu'est-ce que Récupération de carburant ? The operation of removing remaining fuel from tanks or lines, especially from areas not emptied by normal fuel pump oper...
- Qu'est-ce que Récupération du glycol ? The process of collecting used glycol-based de-icing or anti-icing fluids from airport surfaces after application for en...
- Qu'est-ce que Réduction de poussée ? A standard procedure to reduce engine thrust from take-off power to a lower, climb-appropriate setting at a specific alt...
- Qu'est-ce que Réduire la vitesse ? A phrase used to instruct the pilot to decrease the aircraft's speed.
- Qu'est-ce que réduisez les manettes de poussée ? Callout or instruction for pilots to move all engine thrust levers to idle, normally at 20–10 ft AGL during Airbus landi...
- Qu'est-ce que Référence chapitre ATA ? Standardized reference number identifying aircraft system/component according to the ATA 100/2200 maintenance coding sys...
- Qu'est-ce que référence de données air ? Aircraft module collecting and providing airspeed, altitude, and temperature data from external probes.
- Qu'est-ce que Référence fiche de travail ? Unique identifier of a maintenance work card specifying approved procedures for inspection, repair, or modification.
- Qu'est-ce que Réglage altimétrique ? The value to which the scale of a pressure altimeter is set so as to indicate elevation or height. In ATC phraseology, t...
- Qu'est-ce que Réglage altimétrique utilisant la pression standard ? An altimeter setting based on the standard pressure of 1013.25 hPa or 29.92 inHg, used above the transition altitude. Kn...
- Qu'est-ce que Réglage altimétrique à l'altitude de l'aérodrome ? The altimeter setting that displays the elevation of the aerodrome as the altitude on the altimeter when on the ground. ...
- Qu'est-ce que Réglage altimétrique à la pression au niveau de la mer ? The altimeter setting that corresponds to the atmospheric pressure at mean sea level. Referred to as QNH in ICAO phraseo...
- Qu'est-ce que Réglage de l’Altimètre ? The current local atmospheric pressure value set in an aircraft’s altimeter to ensure correct indication of altitude abo...
- Qu'est-ce que Réglage de l’altimètre par rapport à la pression au niveau de la mer ? The altimeter subscale setting so that the instrument indicates altitude above mean sea level. Also known as QNH.
- Qu'est-ce que Réglage de pression standard (1013 hPa) ? The standard sea-level pressure value of 1013.25 hPa (hectopascals) used above transition altitude/level for setting alt...
- Qu'est-ce que Réglez le code transpondeur ? An instruction for a pilot to set a specific transponder code, enabling air traffic control to identify and track the ai...
- Qu'est-ce que Réglez le transpondeur en mode veille ? An instruction for a pilot to set the aircraft's transponder to standby mode, ceasing transmission of the transponder si...
- Qu'est-ce que Régulateur de pression cabine 1 inopérant ? Primary automatic pressurization channel failed; crew managing cabin differential in manual mode per QRH procedures.
- Qu'est-ce que Régulation température cabine ? Panel or system regulating passenger-cabin temperature by mixing conditioned bleed air and recirculated flow.
- Qu'est-ce que Répondez ident ? An ATC instruction to activate the IDENT feature on the aircraft's transponder, which causes the radar return to flash, ...
- Qu'est-ce que Répétez ? A phrase used to request the repetition of all or part of a previous transmission.
- Qu'est-ce que Réseau de données aéronautiques ARINC 664 ? ARINC 664, also known as AFDX, is a deterministic Ethernet network protocol for reliable, high-speed data communications...
- Qu'est-ce que Réseau Ethernet avionique ? A high-speed, deterministic digital data network based on Ethernet technology, used to interconnect avionics systems on ...
- Qu'est-ce que Réseau Wi-Fi du poste de pilotage ? A secure Wi-Fi network within the cockpit for connecting Electronic Flight Bags, avionics, or crew devices, isolated fro...
- Qu'est-ce que Réservoir central ? The main fuel tank located in the central section of an aircraft’s fuselage, typically used before the wing tanks.
- Qu'est-ce que Réservoir central arrière ? A fuel tank located in the rear centre section of the aircraft fuselage, used for fuel storage and distribution during l...
- Qu'est-ce que Réservoir d’aile ? A fuel tank located within the wing structure of an aircraft, commonly used for storage and balancing fuel load.
- Qu'est-ce que Réservoir d’assiette ? A specialized fuel tank located in the horizontal stabilizer or tail, used to optimize aircraft balance and fuel managem...
- Qu'est-ce que réservoir hydraulique ? A tank storing hydraulic fluid for aircraft hydraulic systems, ensuring continuous supply during all phases of operation...
- Qu'est-ce que Révision Procédurale Provisoire ? A temporary update to operational or maintenance procedures, issued before the next official revision, to address urgent...
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- Qu'est-ce que Sac de confinement d'incendie ? High-temperature-resistant bag used on board to isolate and contain lithium battery or PED fires until landing.
- Qu'est-ce que Sac de vol électronique classe deux ? A portable EFB device that may be temporarily connected to aircraft power/data during flight but is stowed after use (FA...
- Qu'est-ce que Sac de vol électronique classe trois ? A permanently installed EFB system fully integrated with aircraft power and data, certified as part of aircraft avionics...
- Qu'est-ce que Sac de vol électronique classe un ? A portable, non-mounted device (typically a commercial tablet or laptop) used for flight planning, charts, and manuals, ...
- Qu'est-ce que Satellite à haut débit ? A new generation of satellite technology providing much greater data capacity and bandwidth to aircraft for broadband co...
- Qu'est-ce que Scellés de chariot ? Tamper-evident security seals affixed to galley trolleys or beverage carts to ensure contents have not been accessed bet...
- Qu'est-ce que Second fluide ? A protective de-icing or anti-icing fluid applied after first fluid, designed to prevent further accumulation of ice or ...
- Qu'est-ce que Serre-câbles de sécurité ? Approved plastic or textile ties used by the crew to restrain passengers or secure items for safety or security purposes...
- Qu'est-ce que Service automatique d'information terminale (ATIS) ? A continuous broadcast of recorded aerodrome information, including weather, runways and NOTAMs, provided to reduce cont...
- Qu'est-ce que Service d'eau potable ? Ground operation involving the refilling of an aircraft’s drinking water tanks with safe, clean, and potable water.
- Qu'est-ce que Service des toilettes ? Ground service involving the emptying, cleaning, and replenishing of aircraft lavatory systems.
- Qu'est-ce que Service d’information terminale automatique numérique ? A system that provides pre-recorded, digital, real-time airport and weather information to pilots automatically (ICAO Do...
- Qu'est-ce que Service européen de recouvrement géostationnaire de navigation ? The European SBAS providing GNSS augmentation for safety-critical aviation operations, enabling APV and LPV approaches a...
- Qu'est-ce que Service radar terminé ? ATC instruction indicating that radar monitoring and associated services are no longer being provided; the pilot must no...
- Qu'est-ce que service à bord ? Services provided to passengers during flight, such as meals and beverages, potentially affecting departure or operation...
- Qu'est-ce que Seven ? The digit '7' as spoken in the ICAO radiotelephony alphabet, pronounced 'Seven' for clarity in altitude, heading, runway...
- Qu'est-ce que Sierra ? The letter 'S' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to identify taxiways, holding points, an...
- Qu'est-ce que Sifflet ? A small signaling device, often attached to lifejackets, used by survivors to attract attention in rescue situations.
- Qu'est-ce que SIGMET cyclone tropical – Information météorologique significative ? A SIGMET issued for a tropical cyclone within or approaching an FIR, including observed or forecast TC position, extent ...
- Qu'est-ce que Signal de ceinture ? An illuminated sign in the aircraft cabin that instructs passengers to fasten their seatbelts.
- Qu'est-ce que Signalez ? An instruction for the pilot to provide specific information, such as position, altitude, or status, either once or at s...
- Qu'est-ce que Signalez atteinte ? An instruction to notify ATC when a specified altitude or level has been attained.
- Qu'est-ce que Signalez en passant ? An instruction for the pilot to notify ATC when passing through a specific altitude or level.
- Qu'est-ce que Signalez finale ? An instruction for the pilot to inform ATC when the aircraft is on the final approach segment, aligned with the runway c...
- Qu'est-ce que Signalez piste libérée ? An instruction to inform ATC when the aircraft has completely left the runway.
- Qu'est-ce que Signalez établi ? An instruction for the pilot to inform ATC when the aircraft is established on a specified segment of the approach, typi...
- Qu'est-ce que Site de déroutement polaire ? A pre-designated airport suitable for emergency landing or diversion by polar-route aircraft, equipped and authorized fo...
- Qu'est-ce que Six ? The ICAO/FAA radiotelephony spelling for the numeral '6'. Used for unambiguous communication of headings, altitudes, fre...
- Qu'est-ce que Siège d’appoint d’équipage ? A foldable seat located in the cockpit or cabin, reserved for off-duty crew, training personnel, or authorized observers...
- Qu'est-ce que Siège équipage inopérant ? Flight-deck seat fails to lock, adjust, or retract, potentially compromising crew safety and requiring MEL evaluation.
- Qu'est-ce que Snow NOTAM ? Special NOTAM issued when snow, ice or slush significantly affects aerodrome movement areas.
- Qu'est-ce que Sommet de montée ? The defined point in a flight where the aircraft completes its climb and levels off at the planned cruise altitude. Mark...
- Qu'est-ce que Sommet de montée ? The calculated point along the flight path where an aircraft completes its climb and levels off at cruising altitude as ...
- Qu'est-ce que Sondage Atmosphérique ? A vertical profile of the atmosphere obtained by balloon or remote sensing, recording temperature, humidity, wind, and p...
- Qu'est-ce que sonde de pression totale numéro 2 ? Sensor measuring total (pitot) pressure at engine station 2 for air data and engine control systems.
- Qu'est-ce que sonde de température d’air totale ? A sensor on the aircraft that measures total air temperature, providing critical input for engine and air-data systems.
- Qu'est-ce que sonde Pitot ? A forward-facing tube that measures dynamic air pressure, providing critical input for airspeed indication.
- Qu'est-ce que Sortie de Piste ? An incident where an aircraft veers off or overruns the runway surface during take-off or landing.
- Qu'est-ce que Sortie de piste ? A designated taxiway or exit used by an aircraft to vacate the runway after landing or rejected takeoff.
- Qu'est-ce que Souffle de Réacteur ? The high-speed exhaust from a jet engine, which can cause damage or injury if encountered by personnel or equipment.
- Qu'est-ce que soupape de sécurité ? A valve designed to automatically relieve excess pressure or vacuum to protect the aircraft structure.
- Qu'est-ce que soupapes de prélèvement variables ? Adjustable engine valves that regulate bleed air extraction to maintain compressor stability and prevent stall.
- Qu'est-ce que Soute vrac ? Small aft or forward lower-deck compartment used for loose bags, live animals, or outsized items not loaded in container...
- Qu'est-ce que Spoiler Désactivé ? A system status where one or more spoiler panels are intentionally or automatically rendered inoperative for the flight.
- Qu'est-ce que spoilers de sol ? Spoiler panels on the wings that fully deploy upon landing to disrupt lift and aid in braking and deceleration.
- Qu'est-ce que squale ? Sudden increase in wind speed of at least 15 knots, sustained for at least one minute.
- Qu'est-ce que STAR ? Standard Terminal Arrival Route: a published IFR arrival procedure that streamlines traffic flow from the enroute phase ...
- Qu'est-ce que Station au sol GBAS ? A ground-based transmitter providing precision approach and landing guidance by augmenting GNSS signals for aircraft at ...
- Qu'est-ce que Station VOR et TACAN co-localisées ? A ground-based radio navigation aid where a VHF Omnidirectional Range (VOR) and a Tactical Air Navigation (TACAN) facili...
- Qu'est-ce que Stationnement ? The area where aircraft are parked for loading, unloading, or maintenance.
- Qu'est-ce que Statut de surveillance centralisée électronique de l’aéronef ? A system status or advisory displayed on the Electronic Centralised Aircraft Monitoring (ECAM) system, indicating real-t...
- Qu'est-ce que Statut des portes ? The current operational state of all aircraft doors—open, closed, armed, disarmed—communicated between cabin crew, fligh...
- Qu'est-ce que Statut du système d’atterrissage ? Cockpit annunciation indicating availability and health of localizer, glide-slope and autoland monitoring channels.
- Qu'est-ce que Store hublot ? Movable blind covering a passenger window to regulate light during flight phases.
- Qu'est-ce que Surchauffe des Freins ? A situation in which the aircraft's braking system exceeds safe operating temperatures, potentially reducing effectivene...
- Qu'est-ce que Surchauffe Hydraulique ? A condition in which the aircraft hydraulic system exceeds its normal operating temperature limits, potentially leading ...
- Qu'est-ce que Surface critique ? Any aircraft part essential for lift or control, including wings, control surfaces, and stabilizers, which must be clear...
- Qu'est-ce que surface de dégagement d’obstacles ? Imaginary inclined plane established to ensure minimum safe vertical separation between aircraft flight paths and obstac...
- Qu'est-ce que surface de segment visuel ? An obstacle‑free area beyond the runway threshold, providing required visual clearance during the final approach segment...
- Qu'est-ce que surpression d’air de prélèvement ? A condition where the bleed air pressure exceeds safe limits, causing automatic shutdown or system warnings.
- Qu'est-ce que Surveillance de l’état ? Ongoing process of assessing system or component health through data and trend analysis to guide maintenance decisions.
- Qu'est-ce que Surveillance de l’état du moteur ? Continuous or periodic analysis of engine data to assess performance, detect faults, and schedule maintenance (ICAO Doc ...
- Qu'est-ce que surveillance dépendante automatique en diffusion ? A surveillance technology in which aircraft broadcast position and flight data, allowing real-time tracking by ATC and o...
- Qu'est-ce que Système Antidérapant Inopérant ? A condition where the antiskid braking system is not operational, requiring alternate braking procedures and possible pe...
- Qu'est-ce que Système automatisé d'observation météorologique (AWOS) ? An unattended station that continuously measures and broadcasts real-time surface weather elements to pilots and ATC on ...
- Qu'est-ce que Système d'Alerte de Proximité du Sol ? An onboard system that alerts pilots if the aircraft is in immediate danger of flying into the ground or an obstacle.
- Qu'est-ce que Système d'atterrissage aux instruments ? Precision approach aid providing lateral (localizer) and vertical (glide slope) guidance to a runway.
- Qu'est-ce que Système d'instruments de secours ? An independent set of basic flight instruments that provide critical information in case of primary display failure.
- Qu'est-ce que système de commande de vol électrique ? An electronic flight control system where pilot inputs are transmitted as electrical signals to computers, which command...
- Qu'est-ce que Système de divertissement en vol ? A dedicated electronic system installed in the aircraft cabin, delivering audio, video, and interactive entertainment co...
- Qu'est-ce que Système de freinage secondaire ? A backup braking system used when the primary brake system fails or becomes unavailable.
- Qu'est-ce que système de gestion de vol ? An avionics system integrating navigation, performance, and flight planning for automated aircraft operation.
- Qu'est-ce que Système de gestion de vol ? An integrated avionics system that automates flight planning, navigation, performance, and guidance calculations through...
- Qu'est-ce que Système de gestion d’informations numériques sur le terrain et les obstacles ? A database system providing real-time digital terrain and obstacle data for flight planning, situational awareness, and ...
- Qu'est-ce que Système de guidage et de contrôle des mouvements au sol ? A comprehensive system of lighting, signs, and procedures to support safe and efficient aircraft movement on the ground,...
- Qu'est-ce que Système de guidage à vision synthétique ? A cockpit display system that provides pilots with a computer-generated, real-time, 3D depiction of terrain, obstacles, ...
- Qu'est-ce que Système de navigation aérienne futur un-alpha ? An ICAO standard for data link communications in oceanic and remote airspace; FANS 1/A enables CPDLC and ADS-C functions...
- Qu'est-ce que système de navigation inertielle ? A self-contained navigation system using accelerometers and gyros to compute aircraft position, independent of external ...
- Qu'est-ce que Système de navigation inertielle ? A self-contained navigation system that determines aircraft position and velocity by processing accelerations and rotati...
- Qu'est-ce que Système de positionnement global ? A satellite-based navigation system providing accurate position, velocity, and time information to aircraft and other us...
- Qu'est-ce que système de refroidissement avionique ? A system providing airflow and temperature regulation to prevent overheating of aircraft avionics components.
- Qu'est-ce que Système de référence inertielle ? A subsystem of an INS providing attitude, position, and velocity reference information for aircraft systems and crew.
- Qu'est-ce que Système de sonorisation ? Aircraft Public Address (PA) system, used by flight and cabin crew for delivering announcements, emergency messages, and...
- Qu'est-ce que Système de transport aérien de nouvelle génération ? The United States’ initiative (NextGen) to modernize the national airspace system, integrating new technologies, automat...
- Qu'est-ce que système de trim Mach ? A system that compensates for Mach tuck by automatically adjusting stabilizer trim at high subsonic speeds.
- Qu'est-ce que Système de vide des toilettes ? Indicates the operational status of the vacuum system in aircraft lavatories, essential for the proper flushing and sani...
- Qu'est-ce que Système de vision améliorée ? Onboard system using infrared or millimeter wave cameras to improve pilot visibility of runway, terrain, and obstacles i...
- Qu'est-ce que système d’alerte de proximité du sol ? An aircraft safety system that warns pilots if the aircraft is at risk of controlled flight into terrain or obstacles.
- Qu'est-ce que système d’alerte et de connaissance du terrain ? Advanced system alerting pilots of hazardous terrain or obstacles using GPS and a terrain database, supplementing GPWS.
- Qu'est-ce que système d’amortissement de lacet ? An automatic system that prevents unwanted yaw oscillations by commanding the rudder, increasing flight comfort and stab...
- Qu'est-ce que Système d’atterrissage automatique ? Integrated avionics that guides aircraft from glide-slope capture through flare and rollout without pilot control inputs...
- Qu'est-ce que système d’atterrissage aux instruments ? A precision approach system providing lateral and vertical guidance to aircraft during landing using radio signals.
- Qu'est-ce que Système d’atterrissage GBAS ? A precision approach and landing system using GNSS signals enhanced by a Ground-Based Augmentation System (GBAS), provid...
- Qu'est-ce que Système d’augmentation au sol ? A system that enhances the accuracy, integrity, and availability of GNSS signals for aviation by providing local ground-...
- Qu'est-ce que Système d’augmentation basé sur satellite ? A satellite navigation system that augments GNSS signals, providing improved accuracy, integrity, and availability for a...
- Qu'est-ce que Système d’augmentation de zone étendue ? A U.S.-based Satellite-Based Augmentation System (SBAS) that enhances GPS accuracy, integrity, and availability for all ...
- Qu'est-ce que Système d’augmentation multifonctionnel par satellite ? Japan’s Satellite-Based Augmentation System providing GNSS augmentation for aviation, enabling precision approaches at a...
- Qu'est-ce que système d’autofreinage ? A system that automatically applies braking at a selected rate during landing or rejected take-off to optimize stopping ...
- Qu'est-ce que système d’automanette ? A system that automatically sets and maintains engine thrust based on flight parameters and autopilot commands.
- Qu'est-ce que système d’avertissement principal ? A central alerting system that warns the flight crew of abnormal but non-critical system status via lights and aural ton...
- Qu'est-ce que système d’indication moteur et d’alerte équipage ? A Boeing system that displays engine and system data and alerts for operational and abnormal conditions.
- Qu'est-ce que système d’intercommunication cabine ? An integrated system enabling voice communication between cabin crew and cockpit, and among crew stations.
- Qu'est-ce que système d’évitement des collisions de trafic ? An airborne safety system providing pilots with traffic advisories and resolution advisories to avoid mid-air collisions...
- Qu'est-ce que système mondial de navigation par satellite ? A system of satellites providing worldwide navigation, including GPS, GLONASS, Galileo, and BeiDou.
- Qu'est-ce que Sécurité de la couche de transport pour l’avionique ? The use of cryptographic protocols (TLS/SSL) to protect avionics network data in transit from unauthorized access or tam...
- Qu'est-ce que Sécurité du réseau aéronautique ? Protection of aircraft networks from unauthorized access, cyberattacks, and data breaches, ensuring the integrity of onb...
- Qu'est-ce que Sécurité sur l'aire de trafic ? Operational procedures and regulations ensuring the safe movement and coordination of aircraft, vehicles, and personnel ...
- Qu'est-ce que Séparation basée sur le temps ? A separation technique in which aircraft are spaced by time intervals instead of distance to maximize runway throughput,...
- Qu'est-ce que séquence de démarrage automatique de l’APU ? A programmed series of actions by which the auxiliary power unit starts automatically and safely without crew interventi...
- Qu'est-ce que Séquençage ? The process of arranging aircraft in a specific order for arrival, approach, or departure, ensuring safe and efficient f...
- Qu'est-ce que Séquençage au point de convergence ? A terminal arrival procedure in which aircraft from different routes are directed to a predefined merge point and sequen...
T
- Qu'est-ce que Tango ? The letter 'T' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to clearly identify taxiways, holding po...
- Qu'est-ce que Taux de mélange ? The specified proportion of de-icing or anti-icing fluid mixed with water to achieve optimal performance under prevailin...
- Qu'est-ce que taux de variation de température atmosphère standard ? The rate at which temperature decreases with altitude under standard atmospheric conditions, 2 °C per 1000 ft or 6.5 °C ...
- Qu'est-ce que Taux positif ? An indication, after takeoff, that the aircraft is climbing and the rate of climb is greater than zero as shown on the v...
- Qu'est-ce que Taxi arrière ? Taxiing on a runway in the opposite direction of takeoff or landing.
- Qu'est-ce que Temps au Sol ? The total duration an aircraft spends on the ground between landing and takeoff, including taxiing, servicing, and board...
- Qu'est-ce que Temps bloc ? The total elapsed time from when the aircraft first moves under its own power for departure until it finally stops after...
- Qu'est-ce que Temps de protection ? The estimated time anti-icing or de-icing fluid will prevent formation of frost, ice, or snow on the aircraft's critical...
- Qu'est-ce que Temps de service équipage ? The total period a crew member is on duty, including all pre-flight, in-flight, and post-flight responsibilities, regula...
- Qu'est-ce que Temps jusqu’à la station ? The calculated or measured time remaining to reach a radio navigation aid, waypoint, or fix, used for position reporting...
- Qu'est-ce que température des gaz d'échappement ? The temperature of gases emitted by the engine exhaust, critical for monitoring engine health and performance.
- Qu'est-ce que Température du carburant ? The measured temperature of aviation fuel within tanks, lines, or engines. Critical for preventing fuel freezing at alti...
- Qu'est-ce que température extérieure ? The temperature of the air outside the aircraft, used in performance and anti-ice calculations.
- Qu'est-ce que Température flexible supposée ? Artificially higher temperature entered in FMS to calculate reduced-thrust take-off setting (flex) within performance li...
- Qu'est-ce que Températures RAT ? Temperatures measured by the Ram Air Temperature (RAT) probe, used for performance calculations and fluid blending ratio...
- Qu'est-ce que Terrain ? The physical features of the land that may pose a hazard to aircraft.
- Qu'est-ce que Terrain de dégagement alternatif ? An airport selected in the flight plan to which an aircraft may proceed when landing at the destination becomes inadvisa...
- Qu'est-ce que Terrain de dégagement insulaire ? An aerodrome located on an island and designated as an alternate for oceanic or remote area operations.
- Qu'est-ce que Terrain de dégagement Montevideo ? Carrasco International (SUMU/Montevideo), designated as the alternate aerodrome for flights operating to/from South Atla...
- Qu'est-ce que Terrain de dégagement à l’atterrissage ? An aerodrome specified in the flight plan to which a flight may proceed when a landing at the intended destination becom...
- Qu'est-ce que Test fonctionnel nécessaire ? Indicates requirement for an operational or systems test to confirm correct function of a repaired or replaced item.
- Qu'est-ce que Tiroir à boissons ? A dedicated sliding compartment in the aircraft galley for storing drinks, ice, and related service items, accessible to...
- Qu'est-ce que Toboggan armé ? A condition in which an aircraft's emergency evacuation slide is mechanically engaged to deploy automatically upon door ...
- Qu'est-ce que Toboggan double voie ? Evacuation slide designed with two parallel lanes to expedite passenger egress on wide-body aircraft exits.
- Qu'est-ce que Toboggan désarmé ? A state in which an aircraft's emergency evacuation slide is mechanically disengaged so it will not deploy if the door i...
- Qu'est-ce que Toboggan d’évacuation inopérant ? Inflatable escape slide at an aircraft door unserviceable, precluding passenger carriage until rectified or deferred per...
- Qu'est-ce que Toboggan-radeau ? Inflatable evacuation slide that converts to a life-raft for ditching or over-water evacuation.
- Qu'est-ce que Toboggans armés ? Confirms that the emergency evacuation slides are engaged and will deploy automatically if the door is opened.
- Qu'est-ce que Toboggans désarmés ? The condition in which the emergency evacuation slides are disengaged from automatic deployment, typically after arrival...
- Qu'est-ce que Toboggans désarmés ? Indicates that the emergency evacuation slides are disengaged from the doors and will not deploy if the door is opened.
- Qu'est-ce que toilettes opérationnelles ? Confirmation that the aircraft's lavatory system is fully operational and available for use during flight.
- Qu'est-ce que Tour de piste ? A standard rectangular traffic pattern around the airfield used for sequencing aircraft for landing or training operatio...
- Qu'est-ce que Tournez à droite ? An instruction from ATC to initiate a right turn onto a specific heading, route, or to avoid traffic or terrain.
- Qu'est-ce que Tournez à gauche ? An instruction to change aircraft heading by initiating a left turn.
- Qu'est-ce que Tout dégagé ? Final ramp-crew signal that all personnel, equipment and pin checks are complete; aircraft environs safe for taxi or eng...
- Qu'est-ce que Tracteur de repoussage ? A motorized ground vehicle used to push aircraft backwards from the gate or parking position, typically before engine st...
- Qu'est-ce que Tracteur sans barre de remorquage ? A powered ground vehicle that lifts the aircraft's nose gear and tows it without the need for a separate towbar.
- Qu'est-ce que Trafic en vue ? Phrase used by pilots to confirm that they have visually acquired the reported traffic.
- Qu'est-ce que Train d’atterrissage sorti ? The position and status indicating the aircraft’s landing gear is fully extended and locked for touchdown and ground ope...
- Qu'est-ce que Train rentré ? A cockpit command for retracting the landing gear, given after a positive rate of climb is established post-takeoff.
- Qu'est-ce que Trajectoire de descente d'urgence ? A predetermined safe vertical and lateral route for rapid descent to a lower altitude in the event of depressurization o...
- Qu'est-ce que Trajectoire de l’Atlantique Nord ? A published daily route system over the North Atlantic, providing organized and coordinated tracks for transatlantic fli...
- Qu'est-ce que trajectoire de montée nette ? Minimum vertical profile flown after take‑off, reduced from gross climb to ensure obstacle clearance following critical-...
- Qu'est-ce que Trajectoire initiale à quatre dimensions ? The first shared, predicted trajectory of an aircraft, including latitude, longitude, altitude, and time, used in Trajec...
- Qu'est-ce que Trajectoire océanique ? A published route across oceanic airspace, usually coordinated daily, which enables safe and efficient passage of aircra...
- Qu'est-ce que Trajectoire sol ? The aircraft’s actual path over the ground, measured in degrees from North. Distinct from heading, which is the directio...
- Qu'est-ce que Trajectoire à quatre dimensions ? A predicted or managed aircraft flight path defined by latitude, longitude, altitude, and time—core to Trajectory-Based ...
- Qu'est-ce que Transfert croisé ? A fuel system operation allowing fuel to be transferred or used from one tank to another to maintain aircraft balance or...
- Qu'est-ce que Transfert de carburant ? The movement of fuel between tanks to ensure aircraft balance and supply during various flight phases.
- Qu'est-ce que Transfert de carburant latéral ? The procedure or system of transferring fuel between tanks or sides of the aircraft to maintain balance or correct asymm...
- Qu'est-ce que Transition ? A published route or procedure that connects the en-route structure to an instrument approach or departure, often used t...
- Qu'est-ce que transpondeur mode S ? An aircraft transponder providing selective, data-rich responses to ATC interrogations, supporting identification and su...
- Qu'est-ce que Trappe du Train d'Atterrissage Ouverte ? A situation where the landing gear doors remain open after gear extension or retraction, indicating a potential malfunct...
- Qu'est-ce que Traversez la piste ? An instruction authorizing an aircraft to proceed across a specified runway, typically during taxi operations.
- Qu'est-ce que trim de gouvernail ? A flight-control adjustment that offsets rudder position to maintain coordinated flight and correct for yaw.
- Qu'est-ce que trim du stabilisateur ? The adjustment of the horizontal stabilizer angle to balance the aircraft in pitch for all flight phases.
- Qu'est-ce que trim d’aileron ? A flight-control adjustment that sets ailerons to correct lateral imbalance and maintain wings-level flight.
- Qu'est-ce que Trois ? The ICAO/FAA radiotelephony spelling for the numeral '3'. Used to clearly transmit numbers, altitudes, headings, runways...
- Qu'est-ce que tropopause ? The boundary layer between troposphere and stratosphere, marked by a temperature inversion, affecting flight levels and ...
- Qu'est-ce que Trousse de premiers secours ? A container holding medical supplies and equipment for treatment of minor injuries or illnesses during flight.
- Qu'est-ce que Trousse de premiers secours ? A collection of supplies and equipment for use in giving first aid in case of minor injuries or medical needs onboard.
- Qu'est-ce que Trousse de premiers soins ? Regulation medical supplies kit carried on board for treatment of minor injuries and illnesses.
- Qu'est-ce que Trousse Médicale d’Urgence ? Sealed on-board kit containing prescription drugs and advanced medical supplies, used in-flight by qualified personnel f...
- Qu'est-ce que turbine à air de choc ? A small turbine deployed in flight to provide emergency hydraulic or electrical power using airflow.
- Qu'est-ce que Turbulence ? Irregular motion of the air resulting from eddies and vertical currents, often causing bumpiness or abrupt altitude chan...
- Qu'est-ce que turbulence ? Irregular atmospheric motion caused by eddies and vertical currents, affecting aircraft stability, comfort, and sometime...
- Qu'est-ce que Turbulence en air clair ? Turbulence that occurs in clear air, typically at high altitudes, away from thunderstorms and not associated with visibl...
- Qu'est-ce que turbulence en air clair ? Turbulence occurring in clear skies, typically at high altitudes near the jet stream, with no visible weather phenomena.
- Qu'est-ce que turbulence modérée ? Turbulence that causes changes in altitude and/or attitude but aircraft remains in control; occupants may feel strain ag...
- Qu'est-ce que turbulence sévère ? Turbulence that causes large, abrupt changes in altitude and/or attitude. Aircraft may be momentarily out of control. Oc...
- Qu'est-ce que Turbulences Sévères ? Turbulence causing large, abrupt changes in altitude and/or attitude, usually resulting in momentary loss of control and...
U
- Qu'est-ce que Ultra long-courrier ? A non-stop flight covering an exceptionally long distance, typically over 16 hours or more than 7,000 nautical miles, re...
- Qu'est-ce que Uniform ? The letter 'U' as spoken in the ICAO phonetic alphabet, used in ATC phraseology for taxiways, holding points, or aircraf...
- Qu'est-ce que Unité d'alimentation au sol ? A mobile or fixed unit that supplies electrical power to an aircraft on the ground when the engines or APU are not runni...
- Qu'est-ce que Unité de chargement ? Unit Load Device — a pallet or container used to load freight, mail, and baggage into aircraft cargo holds, standardized...
- Qu'est-ce que unité de commande de puissance de l’élévateur ? A hydraulic actuator that converts hydraulic pressure into elevator movement, enabling pitch control of the aircraft.
- Qu'est-ce que unité de contrôle du générateur ? Electronic module that manages and protects an aircraft generator, monitoring voltage, current, and system faults.
- Qu'est-ce que Unité de démarrage pneumatique ? A device used to start an aircraft's engines by supplying high-pressure air.
- Qu'est-ce que unité de mélange ? A component that blends recirculated cabin air with conditioned air from the packs before distribution.
- Qu'est-ce que unité de référence inertielle ? An aircraft system providing position and attitude data by processing gyroscopic and accelerometer inputs.
- Qu'est-ce que unité de référence inertielle à données air ? An advanced aircraft system combining air data sensors and inertial reference to provide navigation and performance data...
- Qu'est-ce que unité de transfert de puissance ? A hydraulic unit that enables power transfer between two separate hydraulic systems without mixing their fluids.
- Qu'est-ce que Urgence Carburant ? A condition where an aircraft’s fuel state is such that without immediate landing, safe completion of flight is doubtful...
- Qu'est-ce que Urgence médicale ? A critical health-related situation on board requiring immediate attention and possible diversion to the nearest suitabl...
- Qu'est-ce que Usure des Freins ? The condition in which the aircraft’s brake components have undergone material loss due to repeated use, requiring monit...
- Qu'est-ce que Usurpation du système mondial de navigation par satellite ? A deliberate electronic attack that manipulates GNSS signals to provide false position or timing data to aircraft, endan...
- Qu'est-ce que Utilisation De La Sortie Sur L'aile ? The operation of over-wing emergency exits by passengers or crew during evacuation procedures, usually in the case of la...
- Qu'est-ce que Utilisation du masque à oxygène par l'équipage ? The action taken by flight crew to don oxygen masks during situations such as smoke, fumes, or cabin depressurization.
- Qu'est-ce que Utilisation Du Radeau De Sauvetage ? The procedure of deploying and utilizing inflatable life rafts by crew and passengers following a water landing, in acco...
V
- Qu'est-ce que vanne de décharge ? A valve that regulates the discharge of air from the pressurized cabin to maintain desired cabin pressure.
- Qu'est-ce que vanne du groupe de conditionnement ? A valve that regulates the flow of bleed air into the air conditioning pack.
- Qu'est-ce que Variation magnétique ? The angular difference between true north and magnetic north at a specific location. Used to calculate magnetic headings...
- Qu'est-ce que Vecteur ? A heading assigned by ATC to an aircraft for navigation or separation purposes, usually stated as 'fly heading…'. Vector...
- Qu'est-ce que Vecteur trajectoire ? Symbol on HUD or PFD showing instantaneous trajectory of aircraft relative to horizon and runway aiming point.
- Qu'est-ce que Vent arrière ? The flight path parallel to the landing runway in the opposite direction of landing.
- Qu'est-ce que vent de travers maximum démontré ? The highest crosswind component at which satisfactory control was demonstrated during aircraft certification flight test...
- Qu'est-ce que Vent traversier ? The flight path at right angles to the landing runway at the upwind end.
- Qu'est-ce que ventilateur avionique ? A fan dedicated to cooling avionics equipment by circulating air through the electronics bay.
- Qu'est-ce que ventilateur de recirculation ? A fan that recirculates cabin air, mixing it with conditioned air to improve efficiency and reduce bleed air demand.
- Qu'est-ce que Ventilation carburant ? A device or opening that allows vapors and air to escape or enter aircraft fuel tanks to maintain pressure balance and p...
- Qu'est-ce que Vents ? The current atmospheric conditions affecting aircraft movement.
- Qu'est-ce que Verrou de tablette ? Mechanical catch that locks the passenger tray table in its stowed or deployed position.
- Qu'est-ce que Verrou d’inclinaison du siège ? Mechanical latch preventing a passenger seat from reclining, used during take-off, landing or when inoperative.
- Qu'est-ce que Victor ? The letter 'V' as spoken in the ICAO phonetic alphabet, used in ATC phraseology to indicate taxiways, holding points, or...
- Qu'est-ce que Vidange du carburant ? The process of removing fuel from an aircraft’s tanks, usually for maintenance, balancing, or to comply with regulatory ...
- Qu'est-ce que Vieillissement du carburant ? The process by which stored aviation fuel undergoes chemical changes over time, leading to potential deterioration of qu...
- Qu'est-ce que visibilité ? Greatest distance at which prominent objects are visible and identifiable by day.
- Qu'est-ce que visibilité de piste ? Distance over which runway markings or lights are visible from centreline on approach.
- Qu'est-ce que visibilité dominante ? Greatest visibility value equaled or exceeded for at least half the horizon.
- Qu'est-ce que Visuel ? A term used to describe operations conducted with visual reference to the terrain.
- Qu'est-ce que Vitesse ? The rate at which an aircraft is moving through the air, usually expressed in knots.
- Qu'est-ce que vitesse calibrée ? Indicated airspeed corrected for instrument and position errors, used for accurate performance calculations.
- Qu'est-ce que Vitesse d'atterrissage de référence ? The speed selected as a reference for final approach and landing, often denoted as Vref; used for approach calculations ...
- Qu'est-ce que vitesse de référence d’approche ? Speed selected for use on final approach segment, ensuring safe control margin above stall but stable profile.
- Qu'est-ce que vitesse de référence d’atterrissage ? Target speed established by crew to optimize landing safety and performance, typically VREF plus wind correction.
- Qu'est-ce que vitesse de sécurité au décollage ? Target airspeed reached after V2 during take‑off, providing sufficient climb gradient with one engine inoperative.
- Qu'est-ce que Vitesse de transition ? The airspeed at which the transition from one phase of flight to another occurs, often referencing a speed for configura...
- Qu'est-ce que vitesse du rotor basse pression ? Rotational speed of the low-pressure compressor or fan in a jet engine, often indicated as N₁.
- Qu'est-ce que vitesse du rotor haute pression ? Rotational speed of the high-pressure compressor or core in a jet engine, commonly indicated as N₂.
- Qu'est-ce que Vitesse d’approche finale ? The target airspeed maintained by an aircraft during the last segment of the approach for landing, determined by aircraf...
- Qu'est-ce que Vitesse indiquée ? The airspeed value read directly from the aircraft’s airspeed indicator, not corrected for instrument or atmospheric err...
- Qu'est-ce que Vitesse Indiquée Non Fiable ? A condition where the airspeed readings provided by the pitot-static system are incorrect or inconsistent, potentially l...
- Qu'est-ce que Vitesse Maximale D'énergie De Freinage ? The highest speed from which an aircraft can stop without exceeding the maximum brake energy limit, used to ensure brake...
- Qu'est-ce que Vitesse Maximale Du Pneumatique ? The highest ground speed a tire can sustain without risking structural failure, defined by aircraft and tire manufacture...
- Qu'est-ce que Vitesse minimale propre ? The lowest speed at which an aircraft can fly in a clean configuration without deploying flaps or slats.
- Qu'est-ce que Vitesse sol ? The speed of an aircraft relative to the surface of the Earth, as measured by navigation systems.
- Qu'est-ce que Vitesse vraie ? The actual speed of an aircraft relative to the air mass through which it is flying, corrected for altitude and temperat...
- Qu'est-ce que vitesse équivalente ? Indicated airspeed corrected for compressibility effects at altitude, used for performance comparisons.
- Qu'est-ce que Voie de circulation ? A path on an airport connecting runways with aprons, hangars, terminals, and other facilities.
- Qu'est-ce que Voie de circulation ? A defined path at an aerodrome, established for the taxiing of aircraft and intended to provide a link between one part ...
- Qu'est-ce que Vol de contrôle maintenance ? Post-maintenance air test conducted to verify aircraft performance and systems before return to commercial service.
- Qu'est-ce que Vol En Instruments Dégradés ? Flight conducted with limited or failed cockpit instruments, typically requiring reliance on backup or standby indicator...
- Qu'est-ce que Vol en mode tanker ? A flight carrying more fuel than required, often to avoid higher fuel costs at destination or for operational contingenc...
- Qu'est-ce que Vol prolongé au-dessus de l’eau ? Flight operation segment that takes place beyond a specified distance from land, requiring special equipment and regulat...
- Qu'est-ce que Volets ? Hinged surfaces on the trailing edge of the wing that can be extended to increase lift at lower speeds, used during take...
- Qu'est-ce que vols consécutifs ? A sequence of successive flights where certain MEL/CDL items may remain deferred or require repeated checks as specified...
- Qu'est-ce que VOR avec DME co-localisé ? A navigation aid installation where a VHF Omnidirectional Range (VOR) and Distance Measuring Equipment (DME) are located...
- Qu'est-ce que Voyant toilette occupée ? Illuminated indicator showing lavatory in-use status to cabin crew and passengers.
- Qu'est-ce que véhicule suiveur ? A ground vehicle used to guide arriving or departing aircraft along taxiways or on the apron, especially in low visibili...
- Qu'est-ce que Vérification croisée ? The action of verifying that a safety-related task (such as arming/disarming doors) has been correctly completed by anot...
- Qu'est-ce que Vérification de formation assistée par ordinateur ? A mandatory electronic assessment verifying that aircrew or ATC personnel have completed required computer-based trainin...
- Qu'est-ce que Vérification de l'altitude ? A request to verify the current altitude of the aircraft.
- Qu'est-ce que Vérification du vent ? A request for the current wind conditions at a specific location.
- Qu'est-ce que Vérifiez la concordance des altimètres ? Instructs flight crew to independently compare altimeter readings to verify correct setting and altitude indication, ens...
- Qu'est-ce que Vérifiez les indications de l’annonceur de mode de vol ? Instructs crew to check and confirm that the Flight-Mode Annunciator (FMA) on the Primary Flight Display is showing the ...
W
Z
- Qu'est-ce que Zero ? The digit '0' as spoken in the ICAO radiotelephony alphabet, pronounced as 'Zero' for clarity in altitude, speed, runway...
- Qu'est-ce que Zone de repos de l’équipage ? A designated area on the aircraft reserved exclusively for crew members to rest or sleep during flight operations, parti...
- Qu'est-ce que Zone d’essai moteur ? A designated ground location where aircraft engines may be operated at power levels above idle for maintenance or operat...
- Qu'est-ce que Zone interdite de pulvérisation ? A designated aircraft area that must not be sprayed with de-icing or anti-icing fluid due to the presence of sensitive e...
- Qu'est-ce que Zone sécurisée ? A designated zone within an airport or airside area where access is restricted to authorized personnel for security purp...
É
- Qu'est-ce que écart de dispatch ? An authorized variation from standard aircraft configuration or equipment status, documented for legal dispatch of a fli...
- Qu'est-ce que Écart à l’atmosphère standard internationale ? The difference between the actual atmospheric temperature and the standard temperature defined by the International Stan...
- Qu'est-ce que Écouter ? Listen on a frequency without establishing two-way communication, maintaining awareness of transmissions
- Qu'est-ce que électronique de commande d’actionneur ? Boeing system managing flight control actuator signals for surface movement, including redundancy and fault isolation.
- Qu'est-ce que Élément de Liste de Déviation de Configuration ? An entry in the Configuration Deviation List authorizing dispatch with specific external or configuration deviations, wi...
- Qu'est-ce que Élément de Liste de Déviation de Configuration ? An authorized deviation from aircraft configuration detailed in the Configuration Deviation List, permitting dispatch wi...
- Qu'est-ce que élément non autorisé au départ ? An inoperative or missing item which, according to MEL or regulatory requirements, prevents the aircraft from being lega...
- Qu'est-ce que élément à répéter ? A recurring defect or observation required to be checked, recorded, or repeated at intervals specified in the MEL or log...
- Qu'est-ce que Élévation du terrain de l'aérodrome ? The official elevation of an aerodrome above mean sea level, usually measured at the highest point of the landing area.
- Qu'est-ce que Émetteur de localisation d'urgence ? A radio beacon automatically activated to transmit a distress signal, assisting search and rescue in locating an aircraf...
- Qu'est-ce que Émetteur de localisation d’urgence (ELT) ? A radio beacon that transmits a distress signal to aid search and rescue teams in locating an aircraft in distress or af...
- Qu'est-ce que Équipage de réserve ? Crew members held in reserve at the airport, ready to replace or supplement operating crew as required by airline or reg...
- Qu'est-ce que Équipage deadhead mobile ? A crew member assigned to reposition as a passenger (not working the flight), who may move between cabins or flights as ...
- Qu'est-ce que équipement de mesure de distance ? An aircraft navigation system providing slant-range distance to a ground station, often paired with VOR or ILS.
- Qu'est-ce que Équipement de mesure de distance ? Airborne interrogator and ground transponder pair providing slant-range distance to the station in nautical miles.
- Qu'est-ce que équipement minimal ? The essential items that must be serviceable for an aircraft to be dispatched under the MEL; if not available, flight is...
- Qu'est-ce que Équipement respiratoire de protection ? A certified, self-contained smoke hood that provides crew with filtered air for a limited time in the presence of smoke ...
- Qu'est-ce que Équipement respiratoire de protection manquant ? Required PBE smoke-hood absent from crew station or galley, violating safety regulations until replaced.
- Qu'est-ce que équipements et aménagements non essentiels ? Equipment or furnishings that are not essential for the airworthiness or safety of the flight and may be deferred.
- Qu'est-ce que Équipements et Mobilier Non Essentiels ? Equipment and furnishings that are not required for safe operation or regulatory compliance and may be inoperative witho...
- Qu'est-ce que État de carburant critique ? A situation where an aircraft's fuel supply has reached a level where it can only proceed to the intended destination an...
- Qu'est-ce que État de Carburant Faible ? A condition where the fuel remaining is less than planned final reserve but not yet an emergency.
- Qu'est-ce que État des portes ? The operational state of aircraft doors, including whether they are armed, disarmed, open, closed, locked, or unlocked, ...
- Qu'est-ce que Étiquette bagage enregistré ? Barcode or RFID label affixed to hold-loaded baggage to identify routing, weight and ownership.
- Qu'est-ce que Évacuation de la Cabine ? An emergency procedure where passengers and crew exit the aircraft rapidly using all available exits, typically initiate...
- Qu'est-ce que Évitement météorologique ? Flight planning or tactical maneuvering to avoid hazardous weather areas using deviation, rerouting, or altitude changes...
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