Fabricated temporary rear floor/work platform in the tailcone of the fuselage. Finished installing the aft fuselage top skins and ribs with clecos. Fit and riveted the former gussets to the longerons. Fit the right side F-6111R and clecoed. Will do the other side tommorow. Installed the static fittings in the side skin of the rear fuselage with ProSeal.