Completed step 3 page 22-02 - Riveted nutplates to the F-1217A-L & -R Tunnel Ribs and F-1201C Firewall Bottom per the callouts in Figure 1 and Figure 4. Completed step 4 - Clecoed, final-drilled #30, the WD-1204 Engine Mount Brackets to the F-1217A-L & -R Tunnel Ribs as shown in Figure 1. Riveted the engine mount brackets to the web of the tunnel ribs. Completed step 5 - Machine countersunk #30 the holes in the forward flange of the F-1217A-L and -R Tunnel Ribs that corresponded to the flush rivets called out in Figure 4. Completed step 6 - Clecoed then riveted, the F-1217A-L & -R Tunnel Ribs to the F-1272 Fwd Fuse Skin. To this assembly clecoed then riveted the F-1201C Firewall Bottom & F-1271-L and -R Fwd Fuse Corner Skin to create the Fwd Lower Fuse Assembly. Completed step 8 - Riveted the F-1288 Cooler Stiffener and corresponding nutplates to the firewall bottom per Figure 1 and Figure 4. Completed step 9 - Rivet nutplates to the F-1217A-L & -R Tunnel Ribs and F-1272 Fwd Fuse Skin per the call outs in Figure 4. Riveted nutplates to the F-1201C Firewall Bottom and fwd fuse skin per the call outs in Figure 4. Completed step 14 - Riveted a nutplate to the forward side of the F-1201C Firewall Bottom to the location labeled "Return Line Clamp" per Figure 4
