Completed step 3 page 21-02. Dimpled holes in F-1221-L&R to match dimpled holes in F-1224 –L&R baggage floors. Deburred and primed ribs. Deburred and primed in addition the following ribs F-1222-L&R and F-1223 – L&R. Completed step 6 – separated and deburred F-1206B rear spar receptacle support F-1206- and F-1206B-R. Completed step 7 – Fit F-1206C rear spar receptacles to the mating ends of the rear spar assemblies in both wings.
