Petty Officer 2nd Class Blair Petterson, an aviation electronics technician at Coast Guard Air Station Astoria, Ore., crouches next to an engine of an MH-60 Jayhawk helicopter on the air station flight line, June 16, 2014.
Petterson is one of the many qualified Jayhawk flight mechanics whose responsibility it is to monitor the mechanical and electrical equipment on board the aircraft, helping ensure the safety of the aircrew. (U.S. Coast Guard photo by Petty Officer 1st Class David Mosley)
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This work, AET2 Blair Petterson [Image 1 of 5], by CPO David Mosley, identified by DVIDS, is free of known copyright restrictions under U.S. copyright law.