Drilled and removed the two bad rivets and cleaned up the holes with MEK. Set up the tank in the cradle for solo riveting and mixed 10 grams of sealant. Put four rivets in every other hole up the center rib, then did the same for ribs to left and right until all five ribs had some rivets. Returned to center rib and filled in rivets, then did the same to ribs to left and right of center. Used excess sealant to seal shop heads inside tank.
