Riveted seat back brace to L+R bulkheads. Riveted the Seat back brace, the 1034 left gusset, F-1046L longeron and F-10102B door seal together. Then riveted the F-10102A door seal angle to longeron. Riveted F-1046R longeron and right gusset to seat back brace. Riveted L+R longerons to F-1005E gusset using AN470 5-6 rivets as some of the holes were enlarged when remaking longerons.
Clecoed the F-1002, F-1040,F-1041, and F-1042 gussets in place. Started riveting upper flange of F-1040 L+R fuselage channels.