Went back to work on the fuel tank. Finished fly cutting the holes in the end ribs for both tanks. Drilled, countersunk and clecoed the end rib tank opening. Riveted the nut plates and doublers to the rib. Countersunk and riveted the nut plates for the fuel sending unit. Started working with the dreaded tank sealant (Pro-Seal). Riveted the fuel drain fitting and fuel filler. Riveted the tank stringers.
