Installation manual

Abnormal Procedures 5-5
LOSS OF PFD DISPLAY AND BEZEL BUTTONS
Failure Indication:
A failure of the PFD display and bezel buttons is indicated by the
display being blank or a solid color such as green, and the bezel
buttons are inoperative.
Functionality Lost:
The ability to enter some autopilot commands/target bugs will be
degraded or lost. The rest of the PFD remains functional in this
case (e.g. internal ADAHRS, automatic communication with MFD
and 3
rd
party avionics, etc).
The ability to change which GPS Nav-Com navigator is driving
the PFD nav solution will also be lost.
Recommended Pilot Action:
Use the autopilot in the remaining usable modes (e.g. Alt Hold,
NAV, GPSS, VS, IAS, Envelope Protection (EP™)). Consider
pulling both PFD circuit breakers for less than 20 seconds to
conduct a warmstart (if Avidyne PFD equipped).
Change 3