Dehavilland BEAVER DHC-2 MK.1 accident near Petersburg, AK

On June 4, 2013, a Dehavilland BEAVER DHC-2 MK.1 (airplane) was involved in an accident near Petersburg, AK. 1 person died. Damage to the aircraft: substantial.

Date
June 4, 2013
Place
Petersburg, AK
Aircraft
Dehavilland BEAVER DHC-2 MK.1 · Airplane
Injuries
1 fatal, 2 serious, 4 minor
Damage
Substantial
Position
56.785°N, 132.568°W
NTSB ID
20130605X32343

Official records · ANC13FA054

NTSB summary

HISTORY OF FLIGHTOn June 4, 2013, about 1531 Alaska daylight time, a float-equipped de Havilland DHC-2 (Beaver) airplane, N616W, sustained substantial damage when it collided with mountainous, tree-covered terrain, about 14 miles east of Petersburg, Alaska. The airplane was being operated by Pacific Wings LLC, as a visual flight rules (VFR) sightseeing flight under the provisions of 14 Code of Federal Regulations, Part 135, when the accident occurred. Of the seven people on board, the certificated airline transport pilot and three passengers sustained minor injuries, two passengers sustained serious injuries, and one passenger was fatally injured. Visual meteorological conditions prevailed, and company flight following procedures were in effect. The flight originated at the Lloyd R. Roundtree Seaplane Facility, at the Petersburg Harbor, Petersburg, about 1519. The flight was a sightseeing flight for cruise ship passengers, and the passengers cruise ship was docked in Petersburg. As part of their company flight following procedures, Pacific Wings incorporates Spidertracks, which provides company management personnel with a real-time, moving map display of the airplane's progress. During an interview with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC) on June 6, the operator's director of operations reported that after returning from a flight, he was alerted that the flight track for the accident airplane had stopped transmitting along the anticipated route to LeConte Glacier. Inquiring of the company flight follower, and unable to establish radi

Probable cause

The pilot’s failure to maintain adequate altitude above the trees, and his subsequent failure to maintain adequate airspeed while maneuvering to avoid the trees, which resulted in an inadvertent aerodynamic stall/spin and an uncontrolled descent.

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