Worked on right half of the avionics shelf. It is a 12" x 19" piece with a couple of L angles. I cut a trap door in it because we will have a couple of fuse blocks in addition to the EXBus II panel. The fuse blocks will be mounted on the trap door for easy fuse replacement. On this shelf we will install the EXBus II, fuse blocks, relays, diode, and the backup battery for the Skyview panel.