On 9 February 1950, "Yuma" departed San Diego, California, for Oahu and arrived in Pearl Harbor ten days later. After almost two months of duty at Pearl Harbor, the tugboat got underway on 10 April 1950 for a mission in the Pacific Trust Territories. Based at Guam, she performed duty at Taongi Atoll and Kusaie Island in the Carolines, at Koror in the Palaus, and at Saipan. On 9 July 1950, she departed Guam and, four days later, arrived in Yokosuka, Japan.