Match drilled all #40 holes in top wing skins, spars, J-stiffeners, wing walk doublers, and ribs. Final drilled #40 holes for aft most nutplate as per directions. Final drilled all #19 holes for the nutplate screws, dimpled the aft most screw hole for #8 screw and countersank the remaining #19 holes for #8 dimples. Countersank #40 holes in W-1002 in common with wing walk doublers as per directions. Disassembled and deburred all parts. Prepped and primed parts. Dimpled J-stiffeners, ribs, rear spar, and W-1002 in non-countersank holes.
