Machine countersunk #30 and #40 the top face of each F-01205B-1 per figure 1 page 21iS/U-03 creating mirrored left and right parts -L-1 & -R-1. Riveted 2 each K1000-4 nutplates to the F-01205B-L-1 & -R-1 using AN426AD3-5 rivets and a temporary bolt to hold while riveting. Riveted the F-01205A-1 to the aft side of the F-01204B-L-1 & -R-1 per figure 2 same page. Riveted F-01205B-L-1 & -R-1, F-01204K-L & -R and the F-01205C-1 to the F-01205A-1 and the F-1204C-L & -R per figure 2 same page. Riveted F-01205D and F-01205E onto the F-01205A-1 per figure 2 for right side and mirrored for left.
Machine countersunk the rivet holes in the F-01204J parts mirroring the operation to create a -L & -R part per figure 1 page 23iS/U-04 for right side. Rivited F-01204J-R & L to the respective F-01204F-R-1 & -L-1, F-01204G-R & -L, and the F-01204K-R & -L using AN426AD3-3.5.
