GFC 600 Autopilot Installed in Piper PA-46-310P/350P
190-02011-11 Rev. 2
Page 22 of 46
PITCH TRIM FAILURE
(Amber AP LED, PTRM FAIL in Message Window on GMC 605 display)
Indicates a failure of the pitch trim servo of the autopilot. The autopilot may remain engaged, but after
disengagement it cannot be re-engaged until the problem is resolved. The yaw damper (if installed) will
remain operative.
1. Control Wheel .................................................................................................................. GRIP FIRMLY
2. AP DISC / TRIM INT Button ............................................................................... PRESS and RELEASE
(Be prepared for possible high elevator control forces)
3. Elevator Trim .................................................................. RE-TRIM if necessary using Pitch Trim Wheel
NOTE
The autopilot disconnect may be accompanied by an AP FAIL on the GMC 605 Status
message window, indicating the automatic flight control system has failed. The autopilot
cannot be re-engaged with this annunciation present.
4. Yaw Damper ................................................................................................. ENGAGE AS REQUIRED
Summary of Contents for GFC 600
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