Hello IV builders,

Sue and I are having a bit of trouble with our flap tracks. Seems that the kit came with 3/16 holes in the aluminum track and larger than 1/4 inch holes in the fiberglass track mounting brackets attached to the aft spar. The difficulty there is that are NO 2 holes (let alone all three) that align in any of the 4 brackets. It looks like the aluminum tracks were drilled first and then they guessed at where to go through the glass bracket. When the holes didn't line up, they just made them bigger until the bolts would go through. If  I install AN3 bolts, I can move the aft end of the track more than half an inch!!!

My thoughts are to ask for new undirlled tracks, flox up the existing holes in the brackets and through drill new holes in both. This would, of course, require complete realignment of the flap tracks but the factory alignment was such that the flaps would move only with significant pressure and lots of binding anyway.

I really love these "fast build" features. Only takes 3 or 4 times as long as doing it yourself from scratch.

Any ideas?

Bill Harrelson
N5ZQ  320  900 hrs
N6ZQ   IV    1% and holding for ideas