Step 28 Cleaned F-1270A and F-1270D side skin doublers with Acetone and primed. Also primed mating areas of LH and RH side fuselage skin.
Step 30 (RH side) Tapped aft RH spar pin bushng forward to provide clearance for forward CHERRYMAX rivet on upper skin attach flange. Riveted F-1204U-B-R and F-1204T-2-R skin attach angles to center section using CR3213-4-5 CHERRYMAX rivets.
Step 43 Cleaned U-1202C-B outboard doubler plates, U-1202D-B outboard wear plates, U-1203 inboard wear plates, and U-1203E inboard doubler plates with Acetone and primed. Also primed exposed metal on bevels of U-1202 outboard main gear attach brackets.
