Commissioned at Vancouver on April 8, 1941, she arrived at Halifax on June 19, was assigned to Newfoundland Command in July, and for the rest of the year escorted convoys between St. John's and Iceland. Early in February Chilliwack escorted SC.67, her first transatlantic convoy, and was thereafter employed almost continuously as an ocean escort until November, 1944. From June, 1942, onward she was a member of EG C-1, and during this period escorted three convoys around which epic battles were fought: SC.94 (August, 1942), ONS.154 (December, 1942), and ON.166 (February, 1943). In addition, she assisted in sinking two U-boats: U 356 (when escort to ONS.154, December 27, 1942); and U 744 (When escort to HX.280, March 6, 1944). In the course of a major refit from April to October, 1943, at Dartmouth, N.S., she acquired her long fo'c's'le. Assigned on December 4 to EG WE-8, WEF, she left for a month's workups in Bermuda. Reassigned in April, 1945, to Halifax Force, she was temporarily lent to EG C-1 the following month for one final round trip to Londonderry. Paid off July 14 and laid up at Sorel, she was broken up at Hamilton, Ont., in 1946.
Focsle Extended, Dartmouth, NS, 10 Oct 43