Brief Description: Prepare access plate and tank rib
Machine counter sunk holes in skin to baffle Drilled access hole in T903R Rib with fly cutter Drilled screw holes in access plate, via T407 Reinforcement ring and rib and T411 access plate Drilled platenute rivet holes in Reinforcement ring and rib. Machine countersink ring, dimpled rib Rivet nutplates on ring/rib Drilled hole in access plate (T411) for fuel PU line
