NTSB Identification: ANC12CA016
Nonscheduled 14 CFR Part 135: Air Taxi & Commuter
Accident occurred Wednesday, December 21, 2011 in Kwigillingok, AK
Probable Cause Approval Date: 04/02/2012
Aircraft: CESSNA 207A, registration: N6480H
Injuries: 1 Minor.

NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.

The pilot reported that he was flying in visual meteorological conditions for most of the flight. As he approached the airport, he inadvertently entered an area of instrument meteorological conditions that resulted in a buildup of ice on the airframe and windscreen. He attempted to make a 180-degree turn to exit the conditions but was unable to maintain sufficient airspeed for flight, and the airplane descended and collided with terrain. The impact resulted in substantial damage to the fuselage, empennage, and wings.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot’s decision to continue visual flight into instrument meteorological conditions with moderate icing, which resulted in structural icing and an aerodynamic stall.

Full narrative available

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