3/9/2012 - Master Sgt. Christopher Kelley, 332nd Expeditionary Operations Support Squadron aircrew flight equipment superintendent, is congratulated by Chief Master Sgt. John Brinkley, 332nd Air Expeditionary Wing command chief, for making the rank of senior master sergeant. Kelley received a line number of 813 and is the only person on base who made rank this rotation. Kelley is deployed from Charleston Air Force Base, S.C. Brinkley is deployed from Scott Air Force Base, Ill., and is a native of Chesapeake, Va. (U.S. Air Force photo by Staff Sgt. Joshua J. Garcia/Released)

3/9/2012 - Master Sgt. Christopher Kelley (center), 332nd Expeditionary Operations Support Squadron aircrew flight equipment superintendent, takes a photo with 332nd Air Expeditionary Wing chiefs, after being congratulated after receiving his line number for senior master sergeant. Senior master sergeants make up only 3 percent of the active duty Air Force. Kelley is deployed from Charleston Air Force Base, S.C. (U.S. Air Force photo by Staff Sgt. Joshua J. Garcia/Released)