Aviation English
Advanced ATC

What is Controller-Pilot Data Link Communications?

Controller-Pilot Data Link Communications A digital communication system that enables the exchange of messages between air traffic controllers and pilots via data link, used primarily in oceanic, remote, and high-density airspace for clearances, instructions, and reports. (ICAO Doc 4444, GOLD)

Source: ICAO Doc 9432, FAA PCG

How is “Controller-Pilot Data Link Communications” Used in Practice?

Controller-Pilot Data Link Communications established; maintain monitoring and acknowledge all uplink messages promptly.

Certification Exam Relevance

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

Who Needs to Know This Term?

  • Pilots
  • Air Traffic Controllers
  • Cabin Crew

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Frequently Asked Questions

What is Controller-Pilot Data Link Communications?

A digital communication system that enables the exchange of messages between air traffic controllers and pilots via data link, used primarily in oceanic, remote, and high-density airspace for clearances, instructions, and reports. (ICAO Doc 4444, GOLD)

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