Sec 26-2 Riveted together right inboard seat rib assembly and clecoed to Aft Center Section Bulkhead assembly.
Sec 26-3 Riveted nubplates on F-1015B-L & R. Riveted both outboard seat rib assemblies together and clecoed to Aft Center Section Bulkhead Assembly.
Sec 26-4 Riveted and bolted seat rib assemblies to Aft Center Section Bulkhead assembly. Riveted F-1066A Flap Actuator Bracket to Seat Ribs Riveted F-1055B-R to F-1066A.
Sec 26-5 Clecoed and flush firveted outboard seat rib assemblies to Rear Spar Bulkhead. Riveted F-1005C-L & R to Rear Spar Bulkhead. Edge deburred F-1017A-R & L's. Separated and deburred F-1017B - L & R's and F-1017C-L & R's. Edge deburred F-115A-L & R. Final drilled #30 and #40 holes F-1015A-L & R and deburred holes. Final drilled #30 and #40 holes in F-1017A- R & L's, F-1017B-L & R's, F-1017C-L & R's and deburred holes. Clecoed Rear Seat Rib Subassemblies together and to Rear Spar Bulkhead Assemble. Clecoed F-1017A-L & R's and F-1018-L & R's to Rear Spar Bulkhead Assemble.
