Clecoed the baggage ribs in place and match drilled them to the center section. Clecoed the aft side skins in place. Clecoed the aft section bulkheads in place Clecoed together the aft bottom skin and the two aft most bulkheads and clecoed the assembly to the aft side skins Clecoed the forward tailcone bottom skin on. Installed the upper longerons in place .