Rivet remaing holes using LP4-3 and CS4-4 rivets as specified using p-rivet puller and ahnd puller.
NOTE: As I have a p-squeezer, attaching the support angle would have been MUCH easier to do BEFORE any of the nut plates were riveted. Even with the specified nut plates left out, there were several that interfered with the rivet puller/gun. Also, the rivets aft of the flap torque tube were inaccessible with standard rivet sets. I had to grind the back of an angled set in order to drive those two rivets.