Riveted the end rib to the counterbalance rib using the rivet gun and bucking bar since the squeezer would not have fit around the two flanges. The reinforcement plates and nutplates were riveted to the spar. The squeezer was used on the reinforcement plates to spar and the rivet gun and bucking bar were used on the nutplates because the squeezer didn't square up on the rivet without interferring with the threaded part of the nutplate.
Leading Edge of Spar
End Rib Riveted to Counterbalance Rib
Trailing Edge of Spar with Reinforcement Plate and Nutplate
