US Air Force (USAF) AIRMAN First Class (A1C) Miguel Valenzuela, a photographer with the 56th Communications Squadron (CS), 56th Fighter Wing, Luke Air Force Base (AFB), Arizona (AZ), documents aircraft avionics technicians from the 308th Aircraft Maintenance Unit (AMXU) working on a USAF F-16 Fighting Falcon aircraft at Luke AFB. The mission of the 56th FW is to train F-16 pilots and crew chiefs while providing agile combat support to aerospace expeditionary forces