Late in February of that year, "Arikara" returned to Pearl Harbor from her final tour of duty with the 7th Fleet. She served actively in the Hawaiian Islands and in Alaskan waters for another 16 months. On 1 July 1971, the tug was decommissioned and simultaneously transferred to Chile as a loan under the military assistance program. She was commissioned in the Chilean Navy as "Aldea" (ATF-63). She was decommissioned by the Chilean Navy on 14 August 1992 and later sunk as a target.