ASN Aircraft accident Beechcraft B200 Super King Air N786SR Atqasuk, AK
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Status:Accident investigation report completed and information captured
Date:Monday 16 May 2011
Type:Silhouette image of generic BE20 model; specific model in this crash may look slightly different
Beechcraft B200 Super King Air
Operator:North Slope Borough
Registration: N786SR
MSN: BB-1016
First flight: 1982
Engines: 2 Pratt & Whitney Canada PT6A-42
Crew:Fatalities: 0 / Occupants: 1
Passengers:Fatalities: 0 / Occupants: 2
Total:Fatalities: 0 / Occupants: 3
Aircraft damage: Substantial
Aircraft fate: Written off (damaged beyond repair)
Location:11 km (6.9 mls) SW of Atqasuk, AK (   United States of America)
Phase: Approach (APR)
Departure airport:Barrow-Wiley Post/Will Rogers Memorial Airport, AK (BRW/PABR), United States of America
Destination airport:Atqasuk Airport, AK (ATK/PATQ), United States of America
A Beechcraft B200 airplane, N786SR, sustained substantial damage during a collision with terrain about 11 km southwest of Atqasuk, Alaska, while on an instrument approach to the Atqasuk Airport. The airplane was operated by the North Slope Borough, Barrow, Alaska, as a instrument flight rules (IFR), public aircraft medical transport positioning flight. The airline transport pilot received minor injuries, and the two North Slope Borough medical personnel aboard received minor injuries.

During the approach to Atqasuk, the airplane accumulated a large quantity of airframe ice, and the pilot decided to discontinue the approach. He then retracted the landing gear, but the airplane failed to climb as anticipated, and struck the ground.

Probable Cause:

PROBABLE CAUSE: "The pilot did not maintain sufficient airspeed during an instrument approach in icing conditions, which resulted in an aerodynamic stall and loss of control. Contributing to the accident were the pilot’s fatigue, the operator’s decision to initiate the flight without conducting a formal risk assessment that included time of day, weather, and crew rest, and the lack of guidelines for the medical community to determine the appropriate mode of transportation for patients."

Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 11 months
Accident number: ANC11TA031
Download report: Summary report

Insufficient rest / fatigue
Loss of control



photo of Beechcraft-B200-Super-King-Air-N786SR
accident date: 16-05-2011
type: Beechcraft B200 Super King Air
registration: N786SR

This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Barrow-Wiley Post/Will Rogers Memorial Airport, AK to Atqasuk Airport, AK as the crow flies is 93 km (58 miles).

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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