Maintainers set to replace C-5 cargo door Published Aug. 5, 2011 By Wayne Crenshaw 78th Air Base Wing Public Affairs ROBINS AIR FORCE BASE, Ga. -- The C-5 Galaxy is a huge aircraft with some pretty big individual parts. One of those came in last week - a side cargo door - which required the 559th Aircraft Maintenance Squadron to use a crane to hoist it on a trailer for transport to the aircraft that needed the part. It's not often the side cargo door has to be replaced, said Master Sgt. Dee Davis, 559th AMXS C-5 maintenance supply liaison manager. The last time it happened was in 2007. The door weighs five tons, and is 48 feet long and 10 feet wide. Because it's such a large part, and isn't replaced very often, careful planning was done to ensure the part was transported and off-loaded safely. "With an object of these enormous dimensions, personnel safety was obviously the number one priority, followed closely by ensuring no damage was done to the door," Davis said.