departed San Diego on 6 July and steamed via Pearl Harbor, Midway, and Guam, to Subic Bay, arriving on 28 July. From there, the destroyer served on the gunline, on the northern SAR station, as PIRAZ escort, and as plane guard. On 14 October, Agerholm was detached for independent transit to Hong Kong. En route, the destroyer passed within of the center of Super Typhoon Joan in the South China Sea. For two tense days, the crew was uncertain of surviving the winds and seas, but the destroyer began to open the typhoon center late on 16 October. The remainder of her deployment was spent at PIRAZ station until 4 December when Agerholm cleared the area for Guam, Midway, and Pearl Harbor. The ship arrived back in San Diego on 20 December and spent the remainder of the year in her home port. Agerholm spent the first six months of 1971 in port at San Diego or operating off the California coast. On 29 June, the destroyer began another WestPac cruise, taking up gunline duties near Binh Thuy, South Vietnam, on 6 August. In addition to NGFS, Agerholm served as planeguard and SAR ship before departing the area on 4 December. She returned to San Diego for the holidays, and closed out the year with post-deployment standdown. Local exercises and inspections occupied Agerholm until 24 July 1972 when she entered the Long Beach Naval Shipyard for a five-month overhaul. The destroyer departed the shipyard on 21 December and steamed to San Diego, where she began preparations, both at sea and in port, for refresher training on 7 February 1973. After seven weeks of continuous drills, Agerholm successfully completed refresher training and qualified in NGFS at San Clemente Island. On 7 February 1973, three sailors were injured in an engine room fire aboard Agerholm while off San Diego. On 26 April, Agerholm set sail in company with the destroyer escort for the western Pacific. She arrived off the coast of Vietnam at "Yankee Station" on 28 May to serve as plane guard for Constellation. The destroyer then underwent a two-week availability alongside the auxiliary vessel in Sasebo, Japan commencing 8 June. Upon completion of those repairs, she put to sea for radar picket duty in the Gulf of Tonkin. Another two weeks at "Yankee Station" followed by two weeks on PIRAZ station brought her Vietnam service to an end. On 30