In preparation for attaching the flap, I clecoed the bottom outboard wing skin in place. This will make sure that everything is exactly aligned while I drill the flap hinge into place. As with the left wing, the ribs had to be gently pulled into position in several places, and there was considerable misalignment of the skin with the holes in the spar at first. More clecoes seem to do the trick. The next time I work on the wing, I'll final-drill each of the holes to #40 size, then deburr them. Then I'll take a nap.