Countersank right spar lower tank attach points. Debur edges of all six W-822 wing access plates. Drilled leading edges of W-822 access plates to #27. Deburred and dimpled for 6R6 screws. Drilled perimeter of W-822 access plates to #19. Deburred and dimpled for 8R8 screws. Attached K1000-6 platenuts for W-822 access plates to the left and right W-706A spar flange. Machine countersank spars to fit #6 dimples. Match drilled K1000-4 platenuts to forward side of left and right spars. Countersank W-706C doubler plate on aft side of spar. Riveted to spar. Primed top and bottom of left and right spar flanges.
