She repaired a fleet of tank landing ships (LSTs) in preparation for the assault on Iwo Jima and then proceeded, on 15 March, to Ulithi, Caroline Islands.

Her last assignment terminated at San Diego, California on 8 April 1949; and, two months later, she sailed for Norfolk, Virginia, which was her new home port, arriving there on 29 July 1949.

She serviced ships there until 6 January 1950 when she was deployed to the United States Sixth Fleet in the Mediterranean Sea as relief of the destroyer tender USS Shenandoah (AD-26), returning to Norfolk on 24 June.

Sierra sailed for the Mediterranean on 30 June 1959 for her third deployment with the Sixth Fleet and returned to Norfolk on 13 December to continue her work as destroyer tender.

She was deployed to Guantanamo Bay, Cuba, from 23 October to 14 December 1961 to tend the reserve training ships recalled to active duty during the Berlin Wall Crisis.

From 1963 through December 1973, Sierra serviced ships of the fleet at ports along the United States East Coast, but primarily at Norfolk.

During that time, Sierra made two peacetime Mediterranean cruises in 1977 and 1978/79 and visited Spain, Majorca, mainland Italy, Sicily, and the French Riviera.

https://en.m.wikipedia.org/wiki/Hurricane_Davidmobile after the hurricane In 1981, Sierra returned to Charleston for a short visit prior to going to Guantanamo Bay for exercises to get the crew ready for service.