Created the lap joint break in the two Center Bottom Skins at the edge where they meet together. Dimpled all holes in the Right and Left Center Bottom Skins that are common with the holes in the Seat Rib assembly. Primed the F-806C-1 & D-2 Bars, the F-805D Brackets, and the F-806E Spacers. Primed all remaining parts of the Seat Rib Assy. as well.