9.7 Match drilled the skin close out tabs. Final drilled the elevator horns. Fabricated the trim cable anchor brackets and cover plates. Dimpled the cover and reinforcement plates.
9.8 Dimpled the front spar flanges. Dimpled the root ribs. Countersunk and dimpled rear spar flanges.
9.9 Dimpled shear clips and ribs. Dimpled the tip ribs. Machine countersunk the trailing edge. Dimpled all skins.
