Final drilled #40 the holes in the aft side skins to the upper longerons Final drilled #40 the mid longerons to side skins Finall drilled #30 the holes in the Center Section to bottom F822, F826, and F827 bottom skins FInal drilled #40 the four holes in the bottom side near center of Cener section Clecoed the F807. 808. 809, and 810 bulkhead tops in place Clecoed the F825 tops skin to the bulkhead tops and upper longerons
