Aviation English
Advanced ATC

What is Automatic Dependent Surveillance Contract?

Automatic Dependent Surveillance Contract A formal agreement, electronically established between an aircraft and ATC ground station, specifying when position, intent, and status reports are automatically transmitted via ADS-C (ICAO Doc 4444, GOLD).

Source: ICAO Doc 9432, FAA PCG

How is “Automatic Dependent Surveillance Contract” Used in Practice?

Automatic Dependent Surveillance Contract established; position reports will be sent at intervals defined by ATC.

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

Data CommunicationsDependent Surveillance ContractController-Pilot Data Link CommunicationsController-Pilot Data Link Communications

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Frequently Asked Questions

What is Automatic Dependent Surveillance Contract?

A formal agreement, electronically established between an aircraft and ATC ground station, specifying when position, intent, and status reports are automatically transmitted via ADS-C (ICAO Doc 4444, GOLD).

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