Step 4. Clecod and riveted the aft spar and 1008 ribs. Clecod to the bottom skin. Shimmed bench appropriately and riveted assy together.
9-19. Back rivited 1008 ribs to the top skin. No problem. Looks good. Riveted remaining 1008 ribs to the bottom skin. Step 3. Clecod both top and bottom assy's togehter at the ribs.
