Cleaned left inboard rib and tank skin with MEK. Applied Proseal to skin and rib flange. Riveted rib to skin with pneumatic squeezer. Had a few ribs that were too close to the fuel vent line fitting and the reinforcement bracket in the nose. These rivets were squeezed using vise grips or a hand squeezer. When using vise grips and a thick scrap piece of aluminum on a rivet on bottom toward leading edge. the scrap piece slipped out and the vise grips dinged the rib flange and skin. A noticeable dent was the result.
Cleaned up rib and skin with MEK. Cleaned all clecoes with MEK.
