Step 1 Seperated trim from F1074 and set aside. Deburred both. Step 2 Flipped tailcone over and clecoed F1009 frame in place. Step 3 Fluted two hole flanges of frames and bulkheads. Step 4 Inserted the the F1047A +B stiffeners. Step 5 Clecoed F1075 top skin in place. Step 6 Centered stiffener marks on hole per plans and match drilled all three to F1075 skin. Step 7 Clecoed F1074 top skin in place Step 8 Match drilled stiffeners to F1074 skin. Step 9 Final drilled all remaining skin to frame holes except F1006.
