Quote Originally Posted by efwd View Post
I received a G3X Service Bulletin this morning. If you have an autopilot, beware. I experienced a nose down trim input once, a few months ago when I turned it on. Sent me down to about 20degrees nose down before I shut it off. At the time, I figured I had something programmed incorrectly. It hasn't happened again since then so I wrote it off. This software update addresses the uncommanded trim input when turning the unit on.
Hi Eddie!

Do you happen to have a Flight Data Log from this flight? We would like to evaluate the autopilot performance data from the flight to see what happened. You can send it to us directly at G3Xpert@Garmin.com.

The bulletin we recently issued was resolved with software update v9.12 for GDU 4XX displays. This can be downloaded here: https://support.garmin.com/en-US/?pa...0&tab=software

Thanks,

Justin