Sanded rudder fairing rivets and air vent epoxy rim. Match drilled F-820-R-1 forward side skin to F-887-R-1 upper longeron and F-801C-1 upper angle. Drilled to #19 all 17 holes at bottom of R landing gear box assembly. Drilled remaining #30 and #40 holes in R forward side skin. Match drilled to #40 L & R F-823-1 mid side skins to F-887 upper longerons. Drilled #30 holes in L & R F-823-1 mid side skins. Drilled to #40 aft bottom end of F-826-1 and F-827-1 center bottom skins.
