Viper phase
Staff Sgt. Aaron Martin, 332nd Expeditionary Maintenance Squadron Phase Inspection Section mechanic, displays one of the many fasteners used to hold together an F-16 Fighting Falcon, Aug. 9, 2010 at Joint Base Balad, Iraq. Phase inspections are thorough programs of preventative maintenance and inspection performed on the fighter jets every 400, 800 and 2,400 flying hours. Sergeant Martin is deployed from Shaw Air Force Base, S.C. (U.S. Air Force photo/Lt. Col. Robert Couse-Baker)