Brief Description: Rivet the Ribs and counterbalance skin
Rivet E-903 & E-904. Rivet counterbalance skin to ribs starting at leading edge and working back. Out of 16 rivets had to remove and replace two. 50 flush rivets attaching counterbalance skin to ribs, all good! No drill outs / replacements. Riveted control horn to main spar assembly.
