Began modification of the rear baggage shelf to add access door for the battery/fusebox and the ELT. An access door on the top will allow access for the battery and E-buss fuse block as well as inspection of the elevator bellcrank. I used an OLFA 1090486 scoring knife to cut the door out. The knife allows for a nice straight edge and thin kerf so that the cutout can be used for the door rather than making a separate one.