Clecoed both F-1004K side center section plates in place. Clecoed L+R side bulkheads and fwd bulkhead in place. Bolted both F-1043B fwd fuselage bulkhead to attach angle, inboard and outboard seat rail supports and F-1042 bulkhead channel. Bolted L+R F-1033 control column mount in place. Riveted the rigth side bulkhead to F-1004K side center section plate.