ROTOR REPAIRMAN Air Force Staff Sgt. Casey Spang inspects one of the tilt-rotors on a CV-22 Osprey aircraft before take off on Cannon Air Force Base, N.M., July 5, 2012. Spang is a flight engineer assigned to the 20th Special Operations Squadron. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 839777-G-IQQ42-444.jpg Photo Gallery