Pg. 21-10 Step 9: Fitted Stub Spar Receptacles to the Stub Spars of both wings. Step 10: Clecoed and riveted the Stub Spar Receptacles and Supports to the F-1203A Bulkhead using the two holes in the center. Final drilled all remaining holes as they were too tight. Pg. 21-11 Step 2: Riveted the F-1203E-L & R Bulkhead Doublers to both ends of the F-1203A Bulkhead, Stub Spar Receptacles and Supports in the designated holes. Step 3: Riveted the flanges of the F-1203E-L & R Bulkhead Doublers together. Used small diameter squeezing sets for clearance.
