Wiped down left tank skin and rib 2 with MEK. Clamped rib 2 in vise. Placed Proseal on skin's rib line and rib 2's flanges. Used wing-nut cleco and scrap aluminum to provide additional clamping force on rib. Wiped off tails of rivets prior to riveting. Riveted rib 2 in place. Wiped off excess Proseal with MEK. Cleaned off all clecoes. Made about 40 grams of Proseal.
Added Proseal to rivet at LE of rib 1 in right tank. This rivet had the Proseal removed 8/27 to look at it because the shop head had slid.
