Senior Airman Cody Richman, 437th Aircraft Maintenance Squadron C-17 Globemaster III flying crew chief, checks to ensure power to the aircraft is working in the aircraft’s cargo bay Aug. 12, 2013, at Joint Base Charleston – Air Base, S.C. The cargo bay can be lit with florescent, red or green lights depending on the mission. (U.S. Air Force photo/Senior Airman Dennis Sloan)