• N652MA de Havilland Canada Inc., Downsview, ON. Rolled out date unknown. First flight 28-Feb-1969.

• N652MA MAC - Miami Aviation Corporation, Opa Locka, FL. Delivered 14-Mar-1969.

• N916SA Leased to Sun Airlines, St Louis, MO. Allegheny Leasing & Financial Corporation, Pittsburgh, PA. Regd Apr-1969.

Note: Sun Airlines ceased operations 10-Jun-1969 and filed for bankruptcy 13-Jun-1969.

• N916SA Returned to Allegheny Leasing & Financial Corporation, Pittsburgh, PA. Regd Jun-1969.

• N916SA Leased to Interior Airways, Fairbanks, AK. 1969.

• N916SA Returned to Allegheny Leasing & Financial Corporation, Pittsburgh, PA.

Note: Withdrawn from use and stored at Fresno, CA.

• CF-AIV Sold to Midwest Airlines, Winnipeg, MB. Regd 23-Jul-1971.

Flew Fresno, CA – Provo, UT – Rapid City, SD – Winnipeg, MB on delivery.

• CF-AIV Transferred. to Norcanair, Prince Albert, SK. Regd Apr-1972. Operated for Midwest – Transair.

• CF-AIV Sold to AirWest Airlines, Richmond, BC. Regd May-1974.

• C-FAIV Re-regd to Air West Airlines, Vancouver, BC. Regd Sep-1974.

Accident: Coal Harbour, Vancouver, BC, 03-Sep-1978. The Twin Otter (equipped with floats) departed Victoria Harbour at 07:18 PDT for a 20-minute flight to Vancouver Harbour water aerodrome. At 175 feet, while on final approach, a loud noise was heard. The aircraft yawed to the left and plunged into the harbour in a left-wing and nose-down attitude, 2,500 feet short of the landing area. There were 11 fatalities and 2 survivors

PROBABLE CAUSE: "In-flight failure of the left-hand inboard flap control rod that led to a sudden retraction of the complete left-hand flap system and sudden loss of control. The inboard span-wise push-pull flap control rod (inboard bell-crank to inboard rod) was severely stress-corroded and had at least three longitudinal cracks; the rod had separated from its inboard fitting."

Note: The remains of the aircraft were subsequently transported to Calgary, AB., for spares recovery. The entire aft fuselage and tail were used in the rebuild of DHC-6 -100 msn 68 C-GEAW in 1981.

• Written off •