Applied fuel tank sealant to bottom firewall. Rivet L & R F-851 skins to F-822 floor assembly, L.G. forward crossmember and F-802M intercostal ribs. Clecoed F-867 cooling ramp in place and drilled aft holes for MK319 rivets. Disassembled and deburred. Applied fuel tank sealant to F-802K L.G. forward crossmember and F-822 forward floor panel at cooling ramp contact points. Rivet F-867 cooling ramp to F-802K L.G. forward crossmember and F-822 floor. Rivet L & R F-820 forward bottom rivets to F-850 skin. Rivet F-867 cooling ramp to F-801 firewall.
