The FAA has posted a notice alerting operators that Garmin has issued Service Alert 22109 Revision A regarding its very popular GFC 500 digital autopilots. The notice only affects those autopilots with the optional GSA 28 pitch trim system installed, associated with Garmin’s Supplemental Type Certificate (STC) SA01866W. That configuration, approved for certified, experimental and … Continue reading FAA Alerts Operators To Pitch-Trim Issue With Garmin Autopilot