Garmin Service Alert 22109A GFC 500 Autopilot
All certified Garmin GFC 500 Autopilots with an optional GSA 28 pitch trim servo including those installed by STC SA01866WI are affected. Before further flight, one of the following actions must be completed:
Disable the GFC 500 Autopilot by pulling the AUTOPILOT circuit breaker and placard the Autopilot ‘Inoperative.’ OR Contact a Garmin dealer to disable the pitch trim as directed in Garmin STC SA01866WI Service Bulletin 22110. This issue will be corrected in a future software update.
See Service Alert here: click to download
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