Completed step 1 page 21-05. Final drilled #19 screw holes for the nine nutplates depicted in Figure 1. Dimpled the two attach holes for the MS21051-L08 nutplate in the aft sloped flange of the two seat rib assemblies per Figure 1. Completed step 3 – dimpled the four K1000-08 nutplates for each seat rib per Figure 1 and then riveted them to seat ribs with AN436AD3-3.5 rivets. Completed step 4 – dimpled 3 #30 hples in each of two seat ribs per Figure 1. Completed step 5 – final drilled #19 screw holes for nutplates depicted in Figure 2 in 2 – F-1215-L and 2 – F-1215-R seat ribs. Completed step 6 – riveted K1000-08 nutplates to 1-F-1215-R and 1-F-1215-R seat ribs per Figure 2
