Prepped and primed ribs and misc parts for the passenger footwells.

3/4: big day of assembly today. Riveted all the inboard seat ribs together. Then riveted the outboard seat ribs. Cleco'd the seat ribs to the aft center bulkhead and match drilled the #12 holes through the spar. Installed and torqued all of the AN3 bolts throughly the spar. Then riveted the seat ribs to the spar web with a double offset river set. Tough access, but all the rivets came out fine. Looking good.