Matt and I spent started off the day by riveting the right step. We then moved to the left side and riveted all of the -4 rivets first. Before putting away the univeral set and lowering the gun pressure, Matt and I both crawled underneath and riveted the ends of the baggage ribs to the bulkheads. I had already riveted the upper 2 rivets on each rib end using the pneumatic squeezer before Matt got here and I thought about using blind rivets on the lower holes. No need though,,,it was relatively easy shooting / bucking these with Matt's help. Once this was done, we installed the left step and riveted it with -4 universal rivets. Whew, a lot of work but it feels great having the larger rivets out of the way. We lowered the pressure on the rivet gun and wrapped up all of the remaining -3 riveting in no time.
Left side riveted - installing bolts on firewall brackets
Firewall brackets bolted to lower longerons
Inside view of fuselage - Matt helped me rivet rib ends to bulkh
