----[Please read http://ercoupers.com/disclaimer.htm before following any advice in this forum.]---- I opened the butt end of one of the ailerons from 09H and found the steel reinforcement for the inboard hinge that has the fitting for the push rod to be in excellent condition. The failure mode would have been rivets breaking off and eventually the reinforcement tearing loose from the aileron.
The end cap that was in contact with the steel piece has some nasty corrosion I shall either make a new piece or put a doubler on it. There was an earlier repair that used Cherry rivets. The Cherry rivets were in very poor condition. They were genuine, not "pop" rivets. When I reassemble the aileron I shall have to use some Cherry rivets. I cannot for the life of me figure out how the factory bucked all the rivets to seal up the aileron. I cannot see any other way of making the aileron airworthy but to take the whole thing apart and renew virtually every rivet. Where a brace looks OK there will be corrosion underneath it that must come out. If I just wash it down with the Aluma-Dyne phosphoric acid preparation followed with the formic acid conversion there is no guarantee I'll neutralize all the corrosion nor any guarantee I'll get all the chemical out of the cracks and crevices. I'd guess about 100+ hours on each aileron I wonder what the interior of the ailerons I'm flying look like? There is just no easy way of taking a look inside them. Too bad they aren't fabric like the wings. I shall probably finishing opening up the aileron before I start A & P school next month. Depending on what I find, it may go up on the rafters for a while. I will need all my concentration for a time, to turn back the clock, and remember how to be a good student. It sure wouldn't do to be at the bottom of a class of young whippersnappers. <G> Paul N2273H __________________________________________________ To unsubscribe from this list please send mailto:[EMAIL PROTECTED] ___________________________________________________________ T O P I C A The Email You Want. http://www.topica.com/t/16 Newsletters, Tips and Discussions on Your Favorite Topics
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