I spent a lot of time, but don't feel like I got much done.
Took apart the wing and deburred the rear spar and the holes in the ribs for the rear spar. Then riveted on the aft root rib to the spar bracket. And finally, cleco'd the #12 ribs in place. I'll rivet tomorrow.
Aft root rib riveted. The bottom 2 were a b**ch to get to.
#12 ribs cleco'd and ready for riveting.
Everything disassembled and ready to go back together for riveting