Completed steps 5 and 7 thru 14 on page 21iS/U-03 Step 5: Riveted the nutplates to F-01221-R-1 and F-01224-R-1. Step 7: Separated F-1206B by removing the hatched areas shown in Figure 3. Step 8: Filed the rear stub spar rounded ends of both wings to closely fit the recessed machined curve of the F-1206C per Figure 4. The small flat on F-1206C located the top of the part. Step 9: Riveted F-1206B-L & -R and F-1206C to F-01206A-1 using the rivets called out in Figure 4. Inserted the rivets in all the holes before setting any of them. Step 10: Dimpled #30 and #40 the holes in the top flange of F-01206A-1 except where noted. Step 11: Riveted the two nutplates to the top flange of F-01206A-1 as shown. Step 12: Riveted ES-00301 Lightening Hole Tie Wrap Clip to F-01206A-1 using the called out hardware. Step 13: Dimpled #40 the nutplate attach holes in the top flange of F-1206G-L & -R per Figure 5. Step 14: Riveted the called out nutplates to F-1206G-L & -R. Completed steps 2 thru 4 page 21iS/U-04 Step 2: Riveted F-01206A-1 to F-01222-L-1 & -R-1 andF-01223-L-1 & -R-1 using therivets called out in Figure 2. Step 3: Riveted F-1206G-L & -R toF-01206A-1 and F-01221-L-1 & -R-1 using the called out rivets. Step 4: Dimpled #30 and #40the holes in the top flange ofF-01206H-L-1 & -R-1 ribs that correspond to the dimpled holesin F-01224-L-1 & -R-1 floors.
