ATC
Honeywell Debunks Reports of Bogus CPDLC Messages
G550 crew received a “DESCEND AT MAXIMUM” message on CPDLC, and when they checked on voice with ATC it hadn’t come from them.

Honeywell is debunking fears about bogus CPDLC messages, sparked by an event last month involving a Gulfstream G550 flying in Shanwick Ocean Control airspace over the northeastern Atlantic Ocean. According to a Flight Service Bureau blog post, the G550 crew received a “DESCEND AT MAXIMUM” message via CPDLC, but when they checked on voice with ATC, it hadn’t come from them. 

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