Narrative:
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: "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 pilots fatigue, the operators 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."
Insufficient rest / fatigue
Loss of control
accident date: 16-05-2011
type: Beechcraft B200 Super King Air
registration: N786SR
| Status: | Accident investigation report completed and information captured |
| Date: | Monday 16 May 2011 |
| Time: | 02:18 |
| Type: |  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) |
| Nature: | Ambulance |
| Departure airport: | Barrow-Wiley Post/Will Rogers Memorial Airport, AK (BRW/PABR), United States of America |
| 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 pilots fatigue, the operators 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:
 |
|
Classification:
IcingInsufficient rest / fatigue
Loss of control
Sources:
» NTSBPhotos
accident date: 16-05-2011
type: Beechcraft B200 Super King Air
registration: N786SR
Map
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).
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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