Sanderling was laid down as PCS-1393 on 22 May 1943 by Robert Jacob Inc. of City Island, New York; launched on 26 February 1944; sponsored by Mrs. Joseph K. Harvey; and commissioned on 9 June 1944.
On 2 November, she arrived at Fukuoka, Japan; and, for the remainder of the year, cleared shipping lanes to that northern Kyūshū manufacturing port. During January and February 1946, she conducted similar minesweeping operations off the northern coast of the Inland Sea to ensure safe passage to and from Kure. She completed her postwar sweeping duties in mid-February and, on the 28th, departed Japan.
YMS-446 then steamed east. After stops in the Marianas, the Marshalls, and the Hawaiian Islands, she arrived at San Pedro, California, on 14 April; and, in May, put into Charleston, South Carolina. During July and August, she underwent overhaul; then, because of personnel shortages, she remained immobilized into December.
Early in 1947, the YMS departed Charleston for Key West, Florida, but returned in February. On the 17th, she was redesignated Sanderling (AMS-35)). On the 18th, she got underway for fleet maneuvers off Puerto Rico; but, later in the day, collided with a Norwegian merchant ship and was towed to Norfolk, Virginia, for repairs. In May, she returned to Charleston; and, two months later, she moved south to conduct operations off Florida for the Mine Countermeasure Station, Panama City, Florida. In November, she returned to South Carolina for indefinite berthing at the Minecraft Base at Charleston.
In May 1948, Sanderling resumed operations along the east and Gulf Coasts, from Newfoundland to the Mississippi River and in the Caribbean. Based at Norfolk and then at Charleston, she operated primarily from Hampton Roads, Virginia, south for the next nine years; participating in type and fleet exercises and providing services for the Operational Development Force.
During that period, she was redesignated twice: to AMCU-49, effective 1 February 1955; and to MHC-49, effective7 February 1955.
In mid-September 1957, she arrived at Green Cove Springs, Florida, and joined the Reserve Fleet. Two months later, on 14 November, she was decommissioned. Sanderling remained berthed at Green Cove Springs until struck from the Navy List on 1 November 1959.
Awards and honors
YMS-446 earned one battle star for her post-World War II minesweeping operations.