Finished hole deburring of seat, baggage, and corner ribs (holes drilled so far), except for holes to attach aft seat floors. I'm still debating with myself on whether to blind rivet the aft seat floors, or install nutplates and use screws.
I did drill the tunnel cover screw holes to full size in the most inboard seat ribs, and deburred the holes. I also deburred the cutout reinforcements, and countersunk the holes in the reinforcements that attach them to the cutout rib sections.
