Brief Description: Zeroed out the fuse twist; drilled aft deck
Zeroed the electronic level across the longerons. Checked at very back of aft deck, several places across the cockpit longerons and fwd longerons. All 0.0 degrees. Other locations on the aft deck itself were 0.1-0.3 degrees off, but it was due to mild buckling of the aft deck. Opened up the slots that go around the vertical bars of F-711 took care of that. Drilled the aft deck, spacers, angles, and longerons.