Commissioned at Vancouver on September 29, 1941, she left Esquimalt on November 11 for Halifax, where upon her arrival on December 17, she was assigned to WLEF. Between May, 1942 and January, 1943, she served with Halifax Force, and then underwent a major refit at Liverpool, N.S., from January 19 to April 3. She was then transferred to Gasps Force because of U-boat activity in the St. Lawrence, but returned to Halifax Force in Novembers 1943, and soon afterward went to Sydney Force. On January 29, 1944, she was rammed by SS Fort Townshend off Louisbourg, N.S., and after temporary repairs was sent to Halifax for further repair work which lasted four months. Early in July she proceeded to Bermuda to work up, returning to Halifax a month later. Mahone was paid off at Halifax on November 6, 1945, and laid up at Shelburne. In 1946 she was placed in strategic reserve at Sorel until 1951, when she was reacquired by the RCN, which kept her in reserve at Sydney until March 29, 1958. That day marked her transfer to the Turkish Navy as Beylerbeyi, and she remained in service until discarded in 1972.
After 1949 Recommissioned as Pendant 192.