Petty Officer 3rd Class Karin Groth, an Aviation Maintenance Technician at Air Station Atlantic City N.J., performs routine maintenance on a rotar blade aboard an MH-65 Dolphin helicopter, Tuesday, Jan. 6, 2015. AMTs in the Coast Guard inspect, service, maintain, troubleshoot and repair aircraft engines, auxiliary power units, propellers, rotor systems, power train systems, and associated airframe and systems-specific electrical components. (U.S. Coast Guard Photo by Petty Officer David Micallef)
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