Brief Description: Attach Main Ribs to Left Wing Spar
Completed steps 1-5 page 15-04. Clecoed various W-1210-R main ribs to W-1206-L spar assembly per Figure 1. Checked alignment and fit and then riveted with LP4-3 rivets to attach angles. Completed step 6 – clecoed then riveted the W-1210-L main rib with attached W-1210B-L rib doubler to W-1206-L spar assembly per Figure 2 page 15-04. Completed step 7 – clecoed the left rear spar assembly to aft flanges of the W-1210 main ribs per Figure 3. Completed step 8 = match drilled #30 holes in aft flange of main ribs per Figure 3. Removed assembly and deburred holes. Completed step 9 – reinstalled the left rear spar assembly to aft flange of W-1210 main ribs and riveted per Figure 4
