Buck riveted right HS skin to spar...hard to reach down to spar with bucking bar and rivet gun. Karl volunteered to help! Not too many bad rivets...maybe 5 on the whole spar. Had a couple clench over and distort the thin csk rim in the spar, so drilled out w/ #30 and used oops rivets in a couple cases.
Squeeze riveted the #1 rib AN426AD-3 rivets. Then buck riveted the #2,3,4 ribs to skin. Much easier to get the bucking bar on the rivets going up the rivet lines on the ribs.
Except for the 3 AN470AD-4-8 rivets that connect the #1 rib to the front spar, right side is finished for now.