Removed counterbalance arms and brackets and removed HS-1202 and HS-1203 spars. Deburred holes per step 10 page 09-03. Completed step 1 page 09-04. Clecoed HS-1224 doublers to inside of HS-1202 forward spar and final drilled #12 holes. Completed step 2 final drilled #40 3/32 inch nutplate attach holes in HS-1224 doublers. Completed step 3 page 09-04 – installed and drilled #40 holes for nutplates for WD-1207 and WD-1208 control horns in both forward and rear spars. Completed step 4 machine countersink of nutplate attach rivet holes flush on outer surface of HS-1202 forward and HS-1203 aft spars. Marked doubler positions, deburred holes. Primed HS-1202 and HS-1203 spars. Completed step 2 page 09-05 – separated the HS-1214 rib clips and deburred parts. Completed step 2 page 09-06 radiused narrow edges of HS-1204 forward inboard ribs and HS-1205 fixed outboard rib per Figure 2
