Formed as an Army Co-operation unit at Sea Island, British Columbia on March 1, 1943. The squadron flew Bolingbroke aircraft on West Coast photographic work and Harvard aircraft in close air support training for Canadian Troops at Wainwright, Alberta. Converted to Hurricane aircraft in June 1943, and redesignated Fighter squadron on October 14, the unit re-equipped with Kittyhawk aircraft and was employed on West Coast air defence until disbanded at Patricia Bay, British Columbia on March 15, 1944.