Started working on some of the bulkheads. I dimpled the F807 for flush rivets where the seatbelt fairleads are installed. Machine countersunk the fairleads and reprimed. Then I deburred the F889 gussets that get installed on the F807. It allows for storage of the tie down rings when not in use so I started fabricating what amounts to large thick nutplates to accep the 3/8 -16 tie down ring threads. I marked them off, cut the big holes and tapped to 3/8-16. Then I cut out one on the bandsaw. Still more work to do before these are ready.