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DHC2, Squaw Lake Quebec Canada, 2005

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Summary
On 1st September 2005, a DHC-2 Beaver, crashed near Squaw Lake, Quebec, Canada, following loss of control in poor weather and moderate to severe turbulence.
Event Details
When September 2005
Actual or Potential
Event Type
Human Factors, Loss of Control, Weather
Day/Night Day
Flight Conditions IMC
Flight Details
Aircraft DE HAVILLAND CANADA DHC-2
Operator NordPlus
Domicile Canada
Type of Flight Public Transport (Passenger)
Take off Commenced Yes
Flight Airborne Yes
Flight Completed No
Flight Phase Cruise
ENR
Location
Approx. 11 nm northwest of Squaw Lake and 4 nm east of Elross Lake
Loading map...


HF
Tag(s) Manual Handling,
Procedural non compliance
LOC
Tag(s) Flight Control Error"Flight Control Error" is not in the list (Airframe Structural Failure, Significant Systems or Systems Control Failure, Degraded flight instrument display, Uncommanded AP disconnect, AP Status Awareness, Non-normal FBW flight control status, Loss of Engine Power, Flight Management Error, Environmental Factors, Bird or Animal Strike, ...) of allowed values for the "LOC" property.,
Environmental Factors
WX
Tag(s) En route In-cloud air turbulence,
Low Level Windshear
Outcome
Damage or injury Yes
Aircraft damage Hull loss
Fatalities Most or all occupants ()
Causal Factor Group(s)
Group(s) Aircraft Operation
Safety Recommendation(s)
Group(s) Aircraft Operation
Investigation Type
Type Independent

Description

On 1st September 2005, a DHC-2 Beaver, crashed near Squaw Lake, Quebec, Canada, following loss of control in poor weather and moderate to severe turbulence.

Synopsis

The following is the synopsis from the official report published by the Transportation Safety Board of Canada:

"The float-equipped de Havilland DHC-2 Beaver…departed the outfitter base camp at Squaw Lake, Quebec[1], at 0925 eastern daylight time, with a passenger and a few supplies on board, for a round-trip visual flight rules (VFR) flight to two wilderness camps, Camp 2 and Camp Pons. The weather in Squaw Lake was suitable for visual flight at the time of take-off but was forecast to deteriorate later in the day. The pilot completed the flights to the two camps and on the way back to Squaw Lake, the weather forced the pilot to make a precautionary landing on Elross Lake[2], 15 nm27,780 m
27.78 km
91,141.732 ft
northwest of Squaw Lake. At 1630, he reported to the company via high frequency (HF) radio that he intended to take off from Elross Lake, as there seemed to be a break in the weather. Rescue efforts were initiated in the evening when the aircraft did not arrive at the base camp. The aircraft was located at 1230 the following day, 4 nm7,408 m
7.408 km
24,304.462 ft
from Elross Lake…The aircraft was destroyed by a post-impact fire. The pilot sustained fatal injuries."

The report makes the following statement regarding the cause and contributing factors:

"The pilot attempted to cross the mountain ridge in adverse weather, and the aircraft stalled at an altitude from which recovery was not possible. Loss of visual references, strong updrafts, moderate to severe turbulence and possible wind shear likely contributed to the onset of the aerodynamic stall."

Related Articles

Further Reading

  1. ^ Schefferville/Squaw Lake Water Aerodrome (TC LID: CSZ9 (54°49′41″ N, 66°48′5″ W))
  2. ^ Elross Lake (54°52'0" N, 67°9'57" W)