Staff Sgt. Jeremiah Smith (left) and Senior Airman Theodore Cupp do maintenance work on the system one hydraulic pump. U.S. Air Force Staff Sgt. Jeremiah Smith (left) and Senior Airman Theodore Cupp, both crew chiefs with the 525th Expeditionary Aircraft Maintenance Unit, do maintenance work on the system one hydraulic pump underneath an F-22 Raptor aircraft at Andersen Air Force Base, Guam, on June 2, 2009. The airmen are deployed from Elmendorf Air Force Base, Alaska. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 571537-T-LJE80-263.jpg Photo Gallery