USCGC Spencer (WMEC-905) is a United States Coast Guard medium endurance cutter. Her keel was laid on 26 June 1982 at Robert Derecktor Shipyard Incorporated, Middletown, Rhode Island. She was named for John Canfield Spencer, United States Secretary of the Treasury from 1843 to 1844 under President John Tyler and launched on 17 April 1984 and was commissioned into service on 28 June 1986. In March 1991, Spencer towed a disabled U.S. Navy frigate, a ship twice Spencer's size, to safety. Spencer participated in the search for a missing Air National Guard pararescueman during the 1991 Perfect Storm. In 1999, Spencer was the on-scene command vessel for the EgyptAir Flight 990 crash off Nantucket, controlling both U.S. Navy and Coast Guard assets in the search and recovery efforts.