Replaced AN426AD3-4.5 rivet on one nutplate that had deformed shop head. New rivet installed looks good. This completes step 5 page 09-04. Riveted WD-1222 counterbalance bracket to HS-1203 aft spar per step 8 page 09-04 w/AN470AD4-5 rivets. Riveted WD-1222 counterbalance bracket to HS-1202 front spar per step 8 page 09-04 w/AN470AD4-5 rivets. Completed step 3 page 09-05 clecoed the spar box assembly together to check alignment of HS-1202 & HS-1203 spar holes w/HS-1211 spar caps. All look good.
