Up drilled mount assemblies and aft shear web. Reinstalled aft fuselage floor and up drilled AN525 holes for splice plates in lower formers. Also up drilled top AN525 holes through upper longerons, splice plates, and crosstie box. Inserted F22-07 between lower crosstie #1 and lower splice plates and pilot drilled assembly. Removed aft fuselage floor and LH side panel assembly to up drill aft bulkhead and associated angles. Removed aft bulkhead, aft shear assembly, tail channel, and tailwheel mount, then removed upper and lower cross ties. All aft fuselage parts disassembled and ready for riveting prep.
Aft shear web and tail angles updrilledAft mounts updrilledAN525 bolt holes drilled in lower splice platesF22-07 spacers inserted and pilot drilledAN525 holes drilled through aft fuselage floor and lower splice plateHoles drilled through spacers, lower splice plates, lower crosstie, and aft fuselage floorHoles drilled through spacers, lower splice plates, lower crosstie, and aft fuselage floorUpdrilling upper splice plates and crosstie box for AN3 hardwareUpdrilling upper splice plates and crosstie box for AN3 hardwareUpdrilling aft bulkheadLH aft side panel removedAft fuselage parts disassembled to prep for riveting
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