Clamp together F20-02L&R Left and Right Hand Former #1 and F20-08 Splice Plate. Drill #40 and cleco same. Drill #40 and cleco F20-12 Aft Clip to F20-05 Former #5. Drill #40 and cleco F20-05 Former #5 to F22-04 Angle Reference. Debur back side of F26-01L&R Left and Right Hand Aft Fuselage Side Panel Skins so F20-06 Turtle Deck skin does not get scratched when inserted between the skins and upper longerons. Bend 30 degree angle on F20-09L&R Left and Right Hand Attach Plate.