Military Sea Transportation Service

The onset of the Korean War caused an expansion of the United States Navy. On 18 February 1952, Wacissa was transferred to the Military Sea Transportation Service (MSTS) and received the designation T-AOG-59. She took part in Operation Sumac, exercises conducted in the North Atlantic from May through July 1952, and subsequently carried cargoes of high test aviation gasoline and lubricating oils to Goose Bay, Labrador, and Argentia, Newfoundland. She ran aground at Polaris Reef, Baffin Bay, on 9 October. Floated free on the 16th, the tanker then put into Halifax, Nova Scotia, for repairs which lasted from 25 October to 19 December. She then resumed her operations along the east coast and continued them into the spring of 1954.

On 25 May 1954, USNS Wacissa was placed out of service, in reserve, and was assigned to the Florida Group, Atlantic Reserve Fleet. Berthed at the Mayport Basin of the Green Cove Springs facility, the gasoline tanker remained in reserve until returned to MSTS on 24 May 1956. She carried a cargo of gasoline and oils from Aruba, Netherlands West Indies, to San Pedro and Long Beach, California, via the Panama Canal, and operated for a time off the west coast, stopping at Seattle, Washington, and San Francisco, California. She was then inactivated at the latter port and delivered to the Maritime Administration - the renamed Maritime Commission - and, on 16 October 1956, was delivered to the National Defense Reserve Fleet at Suisun Bay, California.

U.S. Air Force

Remaining in custodial status from that date, she lay there inactive until 8 April 1957, when she was transferred back to MSTS to resume her lubricant and fuel carrying duties off the west coast. USNS Wacissa was transferred to the Department of the Air Force on 16 September 1957.

Canada

Soon thereafter, she was turned over to the Canadian government to operate with the Northern Transportation Co., Ltd. — the firm which had assumed responsibility for the annual resupplying of Distant Early Warning (DEW) line radar stations in the central Arctic.

The Canadian government operated the tanker in these northern climes until 1963.

Decommissioning and fate

Wacissa was returned to the United States Navy in 1963. Struck from the Navy list on 1 December 1963, she was transferred to the Maritime Administration in May 1964 and was then sold in the same month to the Nicolai Joffre Corp., of Beverly Hills, California, for scrapping.