ASN Aircraft accident de Havilland Canada DHC-6 Twin Otter 300 C-GNDN Markham Bay, NU
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Status:Accident investigation report completed and information captured
Date:Monday 12 August 1996
Type:Silhouette image of generic DHC6 model; specific model in this crash may look slightly different
de Havilland Canada DHC-6 Twin Otter 300
Operator:First Air
Registration: C-GNDN
MSN: 427
First flight: 1974
Engines: 2 Pratt & Whitney Canada PT6A-27
Crew:Fatalities: 2 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 2 / Occupants: 2
Aircraft damage: Damaged beyond repair
Location:Markham Bay, NU (   Canada)
Phase: Landing (LDG)
Departure airport:Iqaluit Airport, NU (YFB/CYFB), Canada
Destination airport:Markham Bay, NU, Canada
Flightnumber: 064
The Twin Otter was carrying six barrels of Jet B fuel for a helicopter company to Markham Bay, an off-strip landing site.
and touched down just after the threshold. The aircraft became airborne 18 m further on and bounced two times before touching down for the last time. The brakes were applied, but power was increased later in an attempt to takeoff again. The aircraft became airborne when the ground fell away beyond the runway and flew for 1000 feet before striking a rock with the main gear. The gear was sheared off and the Twin Otter stalled and crashed onto a rocky beach.

Probable Cause:

CAUSES AND CONTRIBUTING FACTORS: "For unknown reasons, a decision was made to overshoot even though insufficient runway remained for acceleration, take-off, and climb. Likely contributing directly to the decision to overshoot was the difficulty in controlling the aircraft on touchdown."

Accident investigation:

Investigating agency: TSB Canada
Status: Investigation completed
Duration: 1 year and 9 months
Accident number: TSB Report A96Q0126
Download report: Final report

Loss of control

» ICAO Adrep Summary 1/97 (#98)
» Ottawa Citizen


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This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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