eLearning Sign In:

Controller Pilot Data Link Communications (CPDLC)

Controller Pilot Data Link Communications (CPDLC) is a generic term for data link communications between pilots and air traffic controllers. You may also hear data link referred to as Future Air Navigation System (FANS) 1/A which, in addition to CPDLC, includes Automatic Dependent Surveillance – Contract (ADS-C).

This CPDLC general familiarization module is designed for pilots flying in aircraft with FANS 1/A avionics capability. The training is not specific to any aircraft type or avionics package. The module is based on three source documents:

  • ICAO Doc 10037 Global Operational Data Link Document (GOLD)
  • ICAO Doc 9869 Performance-based Communication and Surveillance (PBCS) Manual
  • Federal Aviation Administration (FAA) Advisory Circular 90-117 - Data Link Communications.

The module includes the human factors associated with data link communications and reports by pilots with lessons learned on how to prevent errors.


Downloadable datasheet


  • General Information
  • Flight Planning
  • Departure Clearances (DCL)
  • Connecting With ATS
  • CPDLC Messages
  • Emergency
  • Europe-specific Procedures
  • Pacific-specific Procedures
  • AOC Messages
  • ADS-C
  • FAA Advisory Circular (AC) 90-117 (Knowledge Subject Areas)
  • FAA Operation Specification / Letter of Authorization A056 (Knowledge Subject Areas)