Coast Guard Petty Officer 3rd Class Adam Via, a rescue swimmer at Coast Guard Air Station Detroit, inspects a rescue helicopter's engine as part of a preflight inspection at the station, Oct. 2, 2015.
Part of a rescue swimmer's job is to inspect, service, maintain, troubleshoot and repair cargo aerial delivery systems, drag parachute systems, aircraft oxygen systems, helicopter emergency flotation systems, portable dewatering pumps, air/sea rescue kits and special-purpose protective clothing. (U.S. Coast Guard photo by Lt. j.g. Jacob Naum/released)
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