Thunderbird selectee
Tech. Sgt. Michael Criss, crew chief and instructor at Detachment 12, 372nd Training Squadron, looks for leaks in the hydraulics system of an F-16 Fighting Falcon at Luke Air Force Base. Sergeant Criss has been an F-16 crew chief for nearly 10 years and was recently selected to join the Air Force Thunderbirds. (U.S. Air Force photo/Staff Sgt. Jason Colbert)