ANC96LA164

NTSB accident investigation · de Havilland DHC-2 · Aniak, AK · September 24, 1996

Accident · No injuriesLimited investigationFinal report
Date
September 24, 1996, 11:00 local (19:00 UTC)
Place
Aniak, AK
Injuries
3 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5343Gde Havilland DHC-2
Weather
Visual (VMC) · Day
Status
Completed · report February 2, 1998
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960924029969A
Case key
2910

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to remove all snow and ice from the airplane prior to takeoff.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

On ground/water encounter with terrain/waterTakeoff - aborted
Weather condition - snow
Ice/frost removal from aircraft - not performedPilot in commandCause

Analysis

The pilot stated that he landed the airplane on the lake to pick up two hunters. While they were loading the airplane, a snow shower moved in and the visibility degraded from 3 miles to less than 1/4 mile. After approximately 5 minutes, the snow shower stopped and visibility improved to 5 miles. He elected to takeoff. He brushed his hand on the tail surface of the airplane and noted that the snow brushed off easily. He did not brush any more snow off the airplane. The pilot stated that when he started the engine he looked out at the tail and saw that the snow had blown off the tail. He assumed that it would blow off the rest of the airplane during the takeoff run. The airplane lifted off the surface of the lake and would not climb above 5 feet of altitude. The pilot aborted the takeoff and had insufficient room to stop the airplane. The airplane collided with the shoreline.

Factual narrative

On September 24, 1996, at 1100 Alaska daylight time, a float equipped Dehavilland Beaver DHC-2 airplane, N5343G, registered to and operated by Aniak Air Guides of Aniak, Alaska, crashed into terrain after an aborted takeoff from Oskawalik Lake, which is located approximately 50 miles east of Aniak. The on demand air taxi flight, operating under 14 CFR Part 135, was departing the lake and the destination was Aniak, Alaska. A company visual flight rules flight plan was in effect and visual meteorological conditions prevailed. The certificated commercial pilot and the two passengers were not injured. The airplane was substantially damaged.

During a telephone conversation with the pilot on September 26, 1996, he stated that he landed on the lake to pick up two hunters. While they were loading the airplane, a snow shower moved in and the visibility degraded from 3 miles to less than 1/4 mile. After approximately 5 minutes, the snow shower stopped and visibility improved to 5 miles. He elected to takeoff. He brushed his hand on the tail surface of the airplane and noted that the snow brushed off easily. He did not brush any more snow off the airplane. The pilot stated that when he started the engine he looked out at the tail and saw that the snow had blown off the tail. He assumed that it would blow off the rest of the airplane during the takeoff run. The airplane lifted off the surface of the lake and would not climb above 5 feet of altitude. The pilot aborted the takeoff and had insufficient room to stop the airplane. The airplane collided with the shoreline.

Aircraft

Registration
N5343G
Reported as
de Havilland DHC-2
Category
Airplane
Serial number
862
Airframe hours
7,594
Engine
P&W R-985, 450 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Operator
Aniak Air Guides
Registered owner
Rick Townsend
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · August 31, 1996 · 90 hours before
Departed
Oskawalik Lake, AK
Destination
ANI · AK
Flight plan
Company VFR

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
35
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
2,593 total · 200 in this make and model · 2,522 as pilot in command · 169 in the last 90 days · 74 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
5 statute miles
Lowest ceiling
2,000 ft overcast
Temperature
19 °F

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N5343G · 2

Matched to the same aircraft by N-number and date.