Canadian Commercial Corp., Ottawa, Ontario, Canada, (HTC711-10-D-R001-0004) is being awarded a $14,396,096 contract modification for rotary wing airlift services for the North Warning System.  The location of the performance is arctic region of Canada.  Work is expected to be completed by Sept. 30, 2013.  The contracting activity is ACC AMIC/PKB, Langley Air Force Base, Va.