Got to the shop about noon after catching up on desk work in the AM. Prepped parts for 4 hours. Boy, is that time consuming, especially the big bulkhead with its gazillion cutouts and holes. Later CJ helped me replace a couple of nutplates where I had installed the wrong ones. To close out the day I dry assembled some parts to be riveted next time, and pulled a couple more parts that need prepping for completing the bulkhead assembly.