Finished drilling cabin cover to right side of aft top skin and right side of fuselage to cabin door. Clamped cover to door frame and match drilled #30 then final drilled #12. Moved clamps to forward door frame. Match drilled bottom four holes #30. Bent top flange back and clecoed doubler in place. Match drilled #30 top three holed into cabin cover. Then final drilled #12 all seven holes on both forward posts.