Brief Description: F-01207B-1 and Foward Lower Fuselage Bulkhead
Completed step 6 page 21iS/U-22
Step 6: Taped over holes not to be riveted. Riveted F-01276-1 to the substructure per the call-outs except where noted.
Completed steps 4-5 page 21iS/U-23
Step 4: Turned the fuse right side up then riveted F-01213-L-1 & -R-1 to F-01202F-1, F-01212-L-1 & -R-1, and F-01203A-1, except as noted, using the rivets called out in Figure 2. Captured the two holes in the front flange of F-1253-L & -R when riveting the two outbd holes of F-01213-L-1 & -R-1 to F-01203A-1. Step 5: Reached through the lightening holes in F-01212-L-1 & -R-1 and riveted the nutplates to the top flange of F-01202F-1 and to F-01213-L & -R using the rivets called out.
Completed steps 3-7 page 21iS/U-24 Step 3: Riveted F-12108A to F-01207B-1 per the call-out. Step 4: Clecoed F-01207B-1 in place on the ribs shown, then riveted F-01286A-L-1 & -R-1 to F-01207B-1 and to F-1206G-L & -R. Did NOT rivet F-01207B-1 to the outboard ribs as noted. Step 5: Riveted F-01286B-L-1 to F-01286A-L-1 as shown. Step 6: Riveted F-01286B-R-1 to F-01286A-R-1 as shown. Step 7: Installed the snap bushings as shown.
Completed steps 1-5 page 22iS/U -02 Step 1: Separated and deburr the parts depicted in Figures 1 through 4. Removed the hatched areas as shown. Step 2: Separated and deburred the F-01257-1 as shown in Figure 5. Step 3: Dimpled #30 the called out rivet holes in each F-01257-1. Step 4: Dimpled #40 the called out nutplate attach holes in three F-01257-1. Step 5: Fabricated two FF-00093 from AT6-058X5/16 per Figure 6 dimensions
Completed steps 1-2 page 22iS/U-03 Step 1: Dimpled #40 the nutplate attach holes called out in the web of F-01201C-1 per Figure 1. Step 2: Riveted the four nutplates to the front of F-01201C-1 per the call-out in Figure 1.