Garmin GFC 600 Manual - Page 40
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Internal autopilot system failure (including internal attitude source failure)
The internal attitude source will fail with the loss of both air data and GPS to the GMC 605 internal
attitude source. (In some installations, only air data or only GPS may be interfaced to the GMC 605
internal attitude source). See installed equipment interface checklist on page 9 of this AFMS for
information for installed interfaces.
The following pilot actions will cause the autopilot to disconnect:
Pressing the red AP DISC / TRIM INT switch on the pilot's control wheel
Actuating either half of the manual electric trim split switch
Pushing the AP key on the GMC 605 mode controller when the autopilot is engaged
Pulling the AUTOPILOT circuit breaker
The red AP DISC / TRIM INT switch on the pilot's control wheel will interrupt power to the manual electric
trim for as long as the switch is depressed.
AFCS CONTROL UNIT
The following tables list the available AFCS vertical and lateral modes with their corresponding controls
and annunciations. The NOSE UP/DN Wheel can be used to change the vertical mode reference while
operating in Pitch Hold, Vertical Speed, Altitude Hold, or Flight Level Change mode. Increments of
change and maximum ranges of values for each of these references using the NOSE UP/DN Wheel are
also listed in the table.
GFC 600 Autopilot Installed in Piper PA-46-310P/350P
Page 40 of 46
190-02011-11 Rev. 2