Updrilled leading edge 1/4" forming holes on ribs to 3/8" for plastic wire conduit. Used a vacuum cleaner to suck in a pull string for the wire. I used some kite string, which was small but strong, and tied an end to a small wad of papar towel as a "plug" to pull the string through as it was sucked along.
Primed mating surfaces of all rib/spar interfaces.
Smoothed edges of RH outbd middle skin.
Clecoed subframe for final fit and installed AN960-10L thin washers on the #6 aft rib angle. The grip length on the AN3-5A bolts had minimal exposure with the full size AN960-10 washers.
Checked torque on pre-made spar bolts. Installed and torqued AN3 bolts to 25 in-lb. Installed 8-32 bolts and torqued to 15 in-lb. Applied torque seal to all torqued nuts.
