Inserted one 470-5-10 rivet in rib 2 & rlveted it using hand squeezer. Could not squeeze it completely but it will be left in place. Dave helped place wing skeleton back on jig. Leveled main spar at both ends. Checked lineup of rear spar using plumb bob. Found tip end of rear spar to be in alignment w/main spar. Inboard end of rear spar is approximately 1/8-3/16" too high. Rear spar needs to be pushed away from jig. Per Fig. 32E, measured 1" down from main spar flange for skin alignment. Clamped bottom inboard skin to spars/ribs. Drilled skin to main spar at every other hole.
