Today I did some more deburring, dimpling, priming of the seat and baggage ribs. I countersunk all of the seat rib to F-604 attachments. I also installed the nutplates onto F-604 for the removeable rib nose. I then started to rivet the seat and baggage ribs in place. Those ribs that share rivets are a pain in the rear to set. I would rather be sealing the tank.
