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Century IIB autopilot fail

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cowboyfl

Well-Known Member
Joined
Sep 17, 2015
Messages
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My Arrow is equipped with a piper,nee century autopilot which suddenly failed in flight IMC. I originally thought the AI was having a problem. Descent to vfr return ok.
When I did the preflight test of the autopilot it was working correctly, ie power on roll left/right .
After landing I retested the AI and vacuum 5.5 seem ok however know the ground test just causes the yoke to roll right unstoppable.
So the question is could the AI be delivering bad voltage or did the century head just crap out..any ideas will help
 

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