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ASN Wikibase Occurrence # 145834
Last updated: 19 October 2017
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Type:Silhouette image of generic DHC2 model; specific model in this crash may look slightly different
de Havilland Canada DHC-2 Beaver
Owner/operator:Cochrane Air Service
Registration: C-FGBF
C/n / msn: 168
Fatalities:Fatalities: 2 / Occupants: 3
Other fatalities:0
Airplane damage: Substantial
Location:Lillabelle Lake, Ontario -   Canada
Phase: Landing
Departure airport:Edgar Lake, ON
Destination airport:Lillabelle Lake, ON
The Cochrane Air Service de Havilland DHC-2 Mk.1 Beaver floatplane departed Edgar Lake, Ontario, with 2 passengers and 300 pounds of cargo on board. The aircraft was destined for the companyís main base located on Lillabelle Lake, Ontario, approximately 77 miles to the south. On arrival, a southwest-bound landing was attempted across the narrow width of the lake, as the winds favoured this direction. The pilot was unable to land the aircraft in the distance available and executed a go-around. At 1408, Eastern Daylight Time, shortly after full power application, the aircraft rolled quickly to the left and struck the water in a partially inverted attitude. The aircraft came to rest on the muddy lake bottom, partially suspended by the undamaged floats. The passenger in the front seat was able to exit the aircraft and was subsequently rescued. The pilot and rear-seat passenger were not able to exit and drowned.

Findings as to causes and contributing factors

1. On the windward side of the landing surface, there was significant mechanical turbulence and associated wind shear caused by the passage of strong gusty winds over surface obstructions.
2. During the attempted overshoot, the rapid application of full power caused the aircraft to yaw to the left, and a left roll quickly developed. This movement, in combination with a high angle of attack and low airspeed, likely caused the aircraft to stall. The altitude available to regain control before striking the water was insufficient.
3. The pilot survived the impact, but was unable to exit the aircraft, possibly due to difficulties finding or opening an exit. The pilot subsequently drowned.
4. The rear-seat passenger did not have a shoulder harness and was critically injured. The passengerís head struck the pilotís seat in front; this passenger did not exit the aircraft and drowned.


Safety recommendations:

Safety recommendation A13-02 issued by TSB to DoT Canada
Safety recommendation A13-03 issued by TSB to DoT Canada

Revision history:

26-May-2012 00:49 gerard57 Added
26-May-2012 02:39 gerard57 Updated [Total occupants, Total fatalities, Other fatalities, Source, Narrative]
26-May-2012 02:42 gerard57 Updated [Aircraft type]
26-May-2012 10:53 wave33 Updated [Total fatalities]
28-May-2012 11:38 Dmitriy Updated [Registration, Cn, Operator, Source]
25-Oct-2013 19:53 harro Updated [Time, Location, Departure airport, Destination airport, Source, Damage, Narrative]

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