fishing trawler net during a transit from Holy Loch, Scotland, leaving a scar on her sail from the wire In 1980 "George C. Marshall" went through an extensive overhaul in the floating dry dock USS Los Alamos (AFDB-7) in Holy Loch, Scotland Leaving Holy Loch, Scotland, "George C. Marshall" made a port call in Weymouth, England for 2 days Conducted midshipman ops out of Naval Submarine Base New London, CT Moved to Naval Submarine Base Kings Bay, GA for one patrol and test fired ballistic missiles prior to entering shipyard for overhaul Moved to Naval Weapons Station Charleston, SC to unload weapons prior to entering overhaul at Newport News Shipyard. During an overhaul at Newport News Shipbuilding that lasted from 1981 to 1984, George C. Marshall underwent modifications that included the removal of her Mk 45 ASTOR (and the related 4FZ alarm system) and her Mark 14 torpedo and Mark 37 torpedo capabilities and the installation of a Mobile Submarine Simulator (MOSS) decoy capability on tubes 3 and 4. History needed for 1984-1992. George C. Marshall conducted 78 strategic deterrent patrols during her career and was one of the last units to leave Holy Loch, Scotland, following the closing of that base in 1992. She conducted her last dive off San Diego, California, in 1992 on her way to Bremerton, Washington, for decommissioning. Decommissioning and disposal George C. Marshall was decommissioned on 24 September 1992 and stricken from the Naval Vessel Register the same day. Her scrapping via the Nuclear-Powered Ship and Submarine Recycling Program at Bremerton was completed on 28 February 1994. Notes References External links Benjamin Franklin-class submarines Cold War submarines of the United States Nuclear submarines of the United States Navy 1965 ships Ships built in Newport News, Virginia