In October 1962, Sirago entered the Norfolk Naval Shipyard for another extensive overhaul which included the installation of a fiberglass superstructure and sail and, in the spring of 1963, she resumed operations with her ASW group, Task Group "ALFA." That fall, she deployed to the Middle East for CENTO exercise "MIDLINK VI"; but, during the remainder of the 1960s and into the 1970s, her operations were similar to those of the 1950s. On 1 July 1971, with Commander Clyde H. Shaffer Jr. in command, Sirago was reassigned to SubRon 12 at Key West, Florida; but, less than four months later, on 15 October, she was ordered back to Norfolk, where she rejoined SubRon 6 for one more year. Decommissioning Sirago remained in SubRon 6 until she was decommissioned on 1 June 1972. Struck from the Naval Vessel Register on the same day, she was turned over to the Naval Ships Systems Command and sold for scrapping to the Jacobson Metal Company of Chesapeake, Virginia, on 2 May 1973. References Tench-class submarines Cold War submarines of the United States Ships built in Kittery, Maine 1945 ships