Continued fitting and drilling the nutplate attach holes and screw holes in the bulkhead avionics access door and the stiffener along its edge. There are several tricky areas where flush rivets will have to be installed, and their shop heads and manufactured heads will have to be oriented in a very particular way. I marked these locations so I won't forget, since it'll be a few days before I can get back in the shop.

In the photo below, you can see where the door will be held closed with eight #8 screws (black clecoes).