Dad continued to edge finish misc parts. I deburred the 775 and 774 skins and all bulkheads and stringers, dimpled same. Fabricated a new gusset plate for the right 707 bulkhead. Drilled and riveted the F 750 L&R aft baggage side covers and ran the rudder cables behind those covers. Drilled the eight holes in the forward center section of the F 774 skin through the F 788 gussett, F 706 bulkhead, F 732 spacer to #30.