Preflight Test; Messages And Annunciations - Piper CHEROKEE ARCHER II Pilot Operating Handbook

PREFLIGHT TEST

During the preflight test the G5 will display PFT in the autopilot status box. The autopilot disconnect tone sounds
at the completion of the preflight test and the PFT annunciation is removed. If GFC 500 fails the PFT, a yellow AP
with a red X is displayed in the autopilot status box on the G5.

MESSAGES AND ANNUNCIATIONS

Autopilot Messages
AFCS Controller Key
Stuck
AFCS Controller Audio
Database Missing
Servo Clutch Fault
Servo Trim Input Fault
Autopilot Annunciations
AFCS
AP
AP
AP
MAXSPD
MINSPD
PFT
PTRIM
TRIM DOWN
TRIM UP
190-02291-07 Rev. 4
The system has sensed a key input on the GMC 507 for 30 seconds or
longer.
The audio database is missing from the GMC 507. The aural voice alerts
will not be heard.
One or more autopilot servos has a stuck clutch. The servo needs service.
The inputs to the trim system are invalid. The trim system needs service.
Autopilot has failed. Autopilot and trim are inoperative and flight director is
not available.
Autopilot normal disconnect.
Autopilot abnormal disconnect.
Autopilot has failed. The autopilot is inoperative. FD modes may still be
available.
Autopilot Overspeed Protection mode is active. Autopilot will raise the nose
to limit the aircraft's speed.
Autopilot Underspeed Protection mode is active. Autopilot will lower the
nose to prevent the aircraft's speed from decreasing.
Autopilot preflight test is in progress.
Pitch Trim Fail – Manual Electric Pitch Trim is inoperative.
Elevator Trim Down – Autopilot is holding elevator nose down force. The
pitch trim needs to be adjusted nose down.
Elevator Trim Up – Autopilot is holding elevator nose up force. The pitch
trim needs to be adjusted nose up.
AFMS – GFC 500 Autopilot in Piper PA-28 Series
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