May 16, 20206 yr Hello, If I try to use the Autopilot of thr Airfoil Labs Cessna 172 in NAV mode, it says "NAV ARM", but never actually changes to nav mode, even if I intercepted the NAV heading or say Direct in the GTN 750. The Selector in the Cessna is set to GPS. I cant set the Squawk over the GTN as well. It only works when set via the Transponder Panel in the C172. Radios can be set wirhout problem. Does anybody had the same problem allready and know how to solve it? Regards, Jonas
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