Iíve got the same problem with aileron trim. Started while doing the annual. Is it true that 70% of maintenance is caused by 70% of maintenance? Trouble shooting now. Ray Allen trim servo checked out OK when I unplugged it and hot wired it through a 1 amp fuse. Deeper dive tomorrow.
Bellanca Champ 7ACA since 1986, restored 1990.
RV-8 IO375, MTV-9-B/183-50a, PMags, OW Award Oshkosh 2017
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