Tech. Sgt. Chasity Forrest teaches KC-135 Statotanker pilots how to inspect and use life support equipment. Sergeant Forrest was selected through the Air Force Promotion Enhancement Program for advancement to the rank of master sergeant on Oct. 1, 2009. She is the noncommissioned officer in charge of aircrew flight equipment for the 931st Operations Support Flight. The 931st OSF is part of the 931st Air Refueling Group, an Air Force Reserve unit assigned to McConnell Air Force Base, Kan. (U.S. Air Force photo/Tech. Sgt. Jason Schaap)