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N920AS accident description

Alaska map... Alaska list
Crash location 59.370834°N, 154.975000°W
Reported location is a long distance from the NTSB's reported nearest city. This often means that the location has a typo, or is incorrect.
Nearest city Igiugig, AK
59.327778°N, 155.894722°W
32.5 miles away
Tail number N920AS
Accident date 14 Aug 2002
Aircraft type Helio H-295
Additional details: None

NTSB Factual Report

On August 14, 2002, about 1630 Alaska daylight time, a float-equipped Helio Courier H-295 airplane, N920AS, sustained substantial damage when it collided with an embankment during the takeoff run from a remote lake, about 29 miles east of Igiugig, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country business flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the Alaska Sportsman Lodge LLC., Igiugig. The airline transport certificated pilot, and the three passengers, were not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on August 14, the pilot reported that he was departing toward the west from Crosswind Lake to transport lodge guests back to the lodge. The pilot said the wind conditions at the time of his takeoff were from the west at eight to ten knots. During the takeoff run, the airplane came up on-step, but the pilot said he felt a wind change from a headwind, to a right quartering tailwind of about eight knots. He reported that he had already passed a point where he could safely abort the takeoff, and he saw the airplane approaching the end of the lake. He said he rotated into a climb attitude and the airplane lifted off the water, but the bottom of the float assembly struck the edge of the lake bank. The pilot pulled the engine power to idle, and the airplane slid to a stop on the tundra.

Following recovery of the airplane to Igiugig, in a telephone conversation on August 20, with a representative of the lodge, they reported the airplane received damage to the propeller, the left and right float assemblies, and the left wing flap assembly. In addition, the fuselage received structural wrinkling.

NTSB Probable Cause

The pilot's inadequate evaluation of the wind/weather conditions resulting in a collision with an embankment during the takeoff run. A factor contributing to the accident was a sudden wind shift to a tailwind.

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