by Jeff B » 8 months ago
I remember (I think) that the RV-12 has a spar pin warning system that will defeat the starter relay. Magnetic switches on the spar pins I believe. That would not explain why rotating the prop would fix it, but maybe that is a red herring. Possibly just movement of the aircraft while rotating the prop would make the faulty spar pin switch engage.
Rv12 Spar Pin Light - VAF Forums (vansairforce.net)
by Edmond R Dion » 8 months ago
Another good idea; but the spar pin fault light was not illuminated, and I did try engaging the spar pin override button to no effect.
by Edmond R Dion » 8 months ago
although it would be a good troubleshooting area as the symptoms appear similar.
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