Enlarged holes in R tank ribs T2 and T6 for capacitative plates. Modified R outboard sender plate to clear stiffeners. Attached nut plates to inboard and outboard sender plates. Deburred all R tank ribs T1-T7. Deburred and dimpled all R tank stiffeners. Manufactured T-714 clip for R tank. Manufactured R tank vent line. Flared end for fitting. Drilled T-703 rib for vent line fitting and BNC connector. Deburred inner side of R tank skin. Modified T-703 inboard rib. Match drilled T-411 cover plate and T-407 reinforcement ring. Deburred.