Assigned to the Atlantic Fleet, Redwing arrived Charleston, South Carolina, 23 January 1955. Reclassified a coastal minesweeper, MSC-200 on 7 February, she underwent shakedown out of Key West, Florida, commencing 3 March. Returning via Mayport, Florida, to search for downed aircraft, she arrived Charleston, 20 April, and commenced minesweeping operations with various units of the Fleet.[2]
Redwing arrived Panama City, Florida, 5 July, and provided services to the Mine Defense Laboratory through 9 September. She then joined Tonawanda for special development operations at Key West, before returning to Charleston, 22 September. Redwing continued to operate out of Charleston, until January 1957, participating in minesweeping and amphibious training exercises as far south as Guantánamo Bay, Cuba, and Vieques, Puerto Rico.[2]
Departing New York, 25 February, for exercises as far south as Key West, she returned to Boston, Massachusetts, 21 March, and for the next year provided services for the Destroyer Development Group in Narragansett Bay.[2]
Decommissioning
Redwing departed Boston, 26 February 1959, en route Norfolk, Virginia, for overhaul in preparation for transfer to Spain. Decommissioned at Norfolk 16 June 1959, she was struck from the Navy List and transferred to the Spanish Navy as Sil (M-29) effective 18 June 1959.[2]