Regulations and Government
FAA Warns of CPDLC Confusion in North Atlantic Airspace
Gander ACC reports increased pilot errors
aerial image of ocean waves near land
© Photo by Raul Kozenevski

An FAA Information for Operators warns operators that incorrect or delayed handling of controller-pilot datalink communications (CPDLC) route uplinks in North Atlantic airspace is contributing to pilot errors and increased air traffic control workload. Failure to promptly and correctly load CPDLC route uplinks has led to what Gander Area Control Centre described as “significant flight crew confusion,” along with a “significant increase in frequency congestion, pilot errors, and ATC workload.”

The issue follows new North Atlantic procedures that discontinued blanket issuances of oceanic clearances and increased the use of route-specific clearances when a flight is not “cleared as filed.” Under updated guidance, any required changes to a flight plan must be addressed through specific ATC clearances. Gander ACC implemented the revised procedures in December 2024, introducing CPDLC route uplinks when flights were not cleared as filed.