Brief Description: Attachment of the FWD Lower Fuse Assembly
Completed step 1 page 22iS/U=07.
Step 1: Clecoed then riveted the Fwd Lower Fuse Assembly to the Fuselage as shown in Figures 1 and 2. The skins from the Fwd Lower Fuse Assembly lie over (outside) of the skins on the Fuselage.
Performed parts prep for many parts used in Section 23.
Also completed steps 1 through 9 for the longerons. Step 1: Marked a line on F-01255-L-1 as shown in Figure 1. Step 2: Trimmed the corner on the aft end of the F-01255-L-1 as shown in Figure 1. Step 3: Opened the angle of F-01255-L-1 with a hydraulic ram and 1/2 inch socket as shown in Figure 4. The angle was progressively adjusted from 0 degrees change at the marked line to the full angle specified in Figure 5 at the forward end of the longeron per Figure 1. Step 4: Clamped F-01255-L-1 in a padded vise at the marked line as shown in Figure 1. Used a crescent wrench, as shown in Figure 3, to twist F-01255-L-1 inboard per the dimensions in Figure 1. The twist is progressive from no twist at the marked line to the full amount at the forward end of the longeron. When finished, the entire top surface of the F-01255-L-1 was validated to be planar including the just-twisted portion perFigure 5. Step 5: Deburred the edges of F-01234-L-1. Step 6: Positioned F-01234-L-1 and F-01255-L-1 as shown in Figure 2. Used a scrap piece of .025 thick aluminum to simulate F-01270-L-1. F-01234-L-1 overhangs F-01255-L-1 by .025 inches. With the forward edge of the F-01234-L-1 intersecting the marked line on F-01255-L-1 as shown in Figure 6, clamped F-01234-L-1 to F-01255-L-1 for match-drilling per Figure1, Figure 2 and Figure 6. Step 7: Match-Drilled #30 F-01255-L-1 using the F-01234-L as a drill guide. Step 8: Removed F-01234-L-1, then deburred F-01255-L-1. Step 9: Repeat the above steps for F-01255-L-1.
