Aviation English
Cabin

What is Oxygen mask deployment?

Oxygen mask deployment Automatic or manual release of supplemental oxygen masks from the passenger service unit during cabin depressurisation.

Source: ICAO Doc 9432, FAA PCG

How is “Oxygen mask deployment” Used in Practice?

Mayday, uncontrolled cabin altitude; oxygen mask deployment confirmed throughout cabin, commencing emergency descent to 10 000 ft immediately.

Certification Exam Relevance

ICAO Level 4ICAO Level 5ICAO Level 6EASA FCL.055

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

Related Aviation English Terms

Passenger Oxygen Mask DeploymentChemical oxygen generatorCrew Oxygen Mask UseFixed oxygen

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Frequently Asked Questions

What is Oxygen mask deployment?

Automatic or manual release of supplemental oxygen masks from the passenger service unit during cabin depressurisation.

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