Staff Sgt. Lawrence Lin, an 89th Maintenance Group flying crew chief, inspects a C-32A engine during a post-flight inspection, March 11, 2015. Lin is a native of Elmhurst, N.Y., and maintains, prepares, launches and recovers Special Air Mission aircraft for the 1st Airlift Squadron at Joint Base Andrews, Md. (U.S. Air Force photo by Senior Master Sgt. Kevin Wallace/RELEASED)
Senior Master Sgt. Kevin Wallace
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