Tech. Sgt. Andrew Gravett walks along the top of a C-17 Globemaster III while wearing a safety harness, as he does a routine maintenance check of the aircraft June 4, 2013, at Joint Base Charleston, S.C. The first C-17 to enter the Air Force’s inventory arrived at Charleston Air Force Base in June 1993. The C-17 is capable of rapid strategic delivery of troops and all types of cargo to main operating bases or directly to forward bases in the deployment area. Gravett is a crew chief assigned to the 437th Aircraft Maintenance Squadron. (U.S. Air Force photo/Senior Airman Dennis Sloan) Air Force Week in Photos 6/7/2013 - FORT GEORGE G. MEADE, Md. (AFNS) -- This week's photos feature Airmen around the globe involved in activities supporting expeditionary operations and defending America. This weekly feature showcases the men and women of the Air Force. View the slideshow.