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Accident description
Last updated: 18 October 2017
Status:Final
Date:Saturday 1 November 2008
Time:19:02
Type:Silhouette image of generic C212 model; specific model in this crash may look slightly different
CASA C-212 Aviocar 200
Operator:Arctic Transportation Services
Registration: N437RA
C/n / msn: 166
First flight: 1980-07-14 (28 years 4 months)
Total airframe hrs:26005
Crew:Fatalities: 0 / Occupants: 2
Passengers:Fatalities: 0 / Occupants: 0
Total:Fatalities: 0 / Occupants: 2
Airplane damage: Substantial
Location:1,6 km (1 mls) NNE of Toksook Bay, AK (OOK) (   United States of America)
Phase: Approach (APR)
Nature:Cargo
Departure airport:Bethel Airport, AK (BET/PABE), United States of America
Destination airport:Toksook Bay Airport, AK (OOK/PAOO), United States of America
Flightnumber:1620
Narrative:
The CASA cargo plane departed Bethel (BET) at 18:23 on a flight to Toksook Bay (OOK), and Tununak (TNK) before returning to Bethel.
As the flight approached Toksook Bay the crew prepared for an approach and landing on runway 16. The first officer was pilot flying. As the first officer maneuvered the airplane from base leg to final, she advanced the engine power levers to adjust the airplane’s approach path, but there was no response from the right engine. The airplane began to yaw to the right, and the captain took control of the airplane, initiated a go-around, and added full engine power in an attempt to climb the airplane away from rising terrain. About 500 to 600 feet above the ground, the airplane's yaw to the right intensified, and it began to descend rapidly. The captain applied full left aileron and rudder to correct the yaw, but he was unable to maintain altitude. He selected an area of tundra-covered terrain as a forced landing site. The airplane struck the ground with the right main landing gear, and right front portion of the fuselage. The airplane sustained substantial damage to the fuselage, wings, and empennage.

Probable Cause:

PROBABLE CAUSE: "The flight crew’s inability to adjust/increase power to the right engine during the landing approach due to an in-flight disconnect of the engine power control linkage, resulting in a loss of control of the airplane. Contributing to the accident was the flight crew’s delayed response in feathering the right engine propeller."

Accident investigation:
cover
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 4 months
Accident number: ANC09LA009
Download report: Summary report

Sources:
» NTSB


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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 Bethel Airport, AK to Toksook Bay Airport, AK as the crow flies is 178 km (111 miles).
Accident location: Approximate; accuracy within a few kilometers.

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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