A crew chief inspects the engine of an O/A-10 Thunderbolt II. A crew chief with the 354th Fighter Wing inspects the engine of an O/A-10 Thunderbolt II during the Wing's Operational Readiness Exercise at Eielson Air Force Base, Alaska, on May 24, 2005. SHARE: Download: Full Size (0.06 MB) Credit: VIRIN: 867979-E-KRE50-197.jpg Photo Gallery