The second USS Pyro (AE–24), an ammunition ship, was laid down 21 October 1957 by Bethlehem-Sparrows Point Shipyard, Inc., Sparrows Point, Maryland; launched 5 November 1958; sponsored by Mrs. Stuart H. Ingersoll; and commissioned 24 July 1959 at Norfolk Naval Shipyard, Norfolk, Va., Capt. Robert A. Patton in command. Pyro subsequently made annual deployments to WestPac after 8 October 1962. Much of her at sea time was spent on Yankee Station in support of 7th Fleet Units operating off the coast of Vietnam.