On drawing number 71 in the plans book it shows the aileron bracket to the aileron spar connection. It is a three bolt connection with the two bolts nearest the rod arm assembly vertically spaced. The drawing shows a 1 inch wide by ΒΌ inch deep "block" under these two bolt heads that sandwich the aluminum bracket. It is drawn to indicate it is a wood block. If it is suppose to be a wood block, I don't see what it is for. Am I missing something?
Thanks in advance, Stephen Teate Paradise, Texas