Separated the two F-1206B Rear Spar Receptacle Supports and deburred the edges. Filed and deburred the F-1206C Rear Spar Receptacles and checked the fit with the Wing Rear Spar Assemblies. Dimpled and deburred the F-1206A Bulkhead and the F-1206G and F-1206H Baggage Ribs. Countersunk and deburred the F-1206D Bearing Brackets. Primed the above parts. Riveted the Rear Spar Receptacles and Supports to the F-1206A Bulkhead. Installed K-1000-08 nutplates to the Bulkhead and F-1206G Baggage Ribs. Riveted the Bracket Assemblies with the bearings in place. It was not easy to squeeze the AN426AD4-7 rivets to specs. My pneumatic squeezer was not of much help, even after using rivet sets of different thickness. I was tempted to use the rivet gun and try back riveting but the manual squeezer finally did it.
