Garmin GFC 500 Pitch Trim Service Alert

Don't ignore this safety-of-flight issue that can cause electric pitch trim runaway. A fix is in the works.

Automatic electric pitch trim is a popular option on Garmin’s popular GFC 500 flight control system, especially for higher-end aircraft. For these existing installations (both in certified and experimental aircraft) there’s a potential problem lurking that can cause the system (which uses Garmin’s GSA 28 pitch trim servo) to run uncommanded. Garmin has issued Service […]
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Editor in Chief Larry Anglisano has been a staple at Aviation Consumer since 1995. An active land, sea and glider pilot, Larry has over 30 years’ experience as an avionics repairman and flight test pilot. He’s the editorial director overseeing sister publications Aviation Safety magazine, IFR magazine and is a regular contributor to KITPLANES magazine with his Avionics Bootcamp column.