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Vans SL-00055 Garmin GSA 28-20 servos

WA85

Well Known Member
Since I didn't find any hits while searching for GSA 28-20 or SL-00055, I am adding a PSA note on Vans SL-00055, which addresses using Garmin GSA 28-20 servos on RV-12 / 12is with the Garmin G3X.

Vans SL-00055 addresses how to remove a single wire from the AP connector, which causes the GSA 28-20 servo to "think" its offline.

In our case, we had a 5 year old RV-12 that had a bad GSA 28 roll servo, which Garmin replaced under warranty (EXCELLENT Service). The new servo was a GSA 28-20 and immediately after installation, it caused both servos to be offline on the G3X.

After working with the Garmin G3X expert team, Vans support and Stein Aero, we were advised that SL-00055 addresses the the issue.

Removable of pin #15 solved the issue. (Pin #23 on the 12is).
 
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