Dimple countersunk #40 holes in F807, 808, 809, 810, 811, 812 bulkheads per plans Dimple countersunk #40 holes in baggage ribs common with aft bottom skin Dimple countersunk #19 holes in aft skin for rudder cable clamp attach Dimple countersunk #6 screw holes in aft side skins cover plate attach holes Dimple countersunk #40 nutplate attach holes in same area Dimple countersunk #8 screw holes in F820 forward side skins Dimple countersunk #30 and #40 holes in left and right F820 forward side skins Dimple countersunk the #40 holes in left mid side skin
