FMGSFlight Management and Guidance System (avionics; part of Flight Management Computer, FMC)
FMGSFamous Modern Ghost Stories (collection)
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The various FMGS interfaces and autoflight functions provide pilots with a high degree of flexibility in terms of selecting and combining levels and modes of automation in response to different task and situational requirements.
To find out which FMGS modes are currently active, the pilot must refer to the flight mode annunciations (FMAs) on the Primary Flight Display (PFD).