August, Agerholm departed the Gulf of Tonkin en route to MacKay, Australia, for liberty. After that port visit, the destroyer sailed to Auckland, New Zealand to join the other ships participating in Operation Longex 73, a joint surface, air, and submarine warfare exercise. From 25 September to 3 October Agerholm drilled in ASW and anti-aircraft warfare (AAW) exercises – including night surface attacks on the task groups. Upon completion of the drill, she steamed to Sydney, Australia; Suva, Fiji; and Pearl Harbor, before arriving back in San Diego on 1 November. Upon arrival, Agerholm commenced a post-deployment readiness improvement program of schools, on board training, and a repair availability. On 25 February 1974, the warship got underway for readiness exercises in the southern California area until 17 September, when she departed San Diego on her 20th WestPac cruise. Remaining primarily in the Subic Bay operating area, Agerholm participated in gunnery, ASW, AAW, and ship handling drills until 13 December, when she shaped a course for Apra Harbor, Guam. She ended the year at the ship repair facility there. The destroyer visited Hong Kong and Singapore for liberty, but received orders on 8 February 1975 to join Operation Eagle Pull, the evacuation of the American embassy in Phnom Penh, Cambodia. Agerhoim completed her role in the evacuation on 26 February, and she began the long voyage home. Agerholm arrived in San Diego on 8 April and spent the rest of 1975 and 1976 on the west coast participating in local operations and midshipman training cruises, and eventually landing a role in the movie Airport '77. The year 1977 began the same way with only a drydock period at Todd Pacific Shipyards in San Pedro from May to July to interrupt the routine. On 6 September, the destroyer made her 21st and last WestPac cruise. Agerholm conducted NGFS training, ASROC test firings, and participated in Exercise Fortress Lightning, a full-scale amphibious landing on Mindoro Island in the Philippines. She stopped for liberty calls at Suva, Auckland, Whangarei, and Nelson, New Zealand, Newcastle and Devonport, Australia, before returning: to San Diego early in 1978 to resume a local operation schedule. Disposal From 10 to 13 October 1978, the Board of Inspection and Survey conducted a survey of Agerholm to determine her material condition and the feasibility of keeping her in active service. The board found that her age and lack of modern capabilities