ANC94LA034

NTSB accident investigation · Cessna 206 · New Koliganek, AK · February 11, 1994

Accident · No injuriesLimited investigationFinal report
Date
February 11, 1994, 17:20 local (21:20 UTC)
Place
New Koliganek, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Taxi
Aircraft
N60491Cessna 206
Weather
Visual (VMC) · Day
Status
Completed · report January 12, 1995
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19940211003559A
Case key
2486

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 NTSB’s determination of the probable cause, and any contributing factors.

The pilot's failure to maintain control of the airplane. Factors in the accident were the strong crosswinds and the icy/snow covered taxi surface.

Analysis

The pilot landed on runway 30 with wind from 320 at 25 to 28 knots. After the cargo was unloaded the pilot taxied for takeoff. While taxiing on runway 22, as the airplane taxied beyond the cover of several buildings, it began to slide sideways to the left. The pilot added power in an attempt to control the airplane but it continued to slide and then flipped over.

Factual narrative

On February 11, 1994, at approximately 1720 Alaska standard time, a wheel equipped Cessna 206 airplane, N60491, registered to and owned and operated by Yute Air Alaska, Inc. nosed over while taxiing for takeoff at the airport in New Koliganek, Alaska. The commercial certificated pilot-in-command, the sole occupant, was not injured and the airplane sustained substantial damage. The repositioning flight, conducted under 14 CFR Part 91, was taxiing for takeoff when the accident occurred. Visual meteorological conditions prevailed and a company VFR flight plan was in effect.

During a telephone interview on the afternoon of February 16, 1994, the pilot-in-command told the NTSB investigator-in- charge that a few minutes prior to the accident, he landed on runway 30 at New Koliganek and at that time the wind was blowing from about 320 degrees magnetic at 25 to 28 knots. After unloading all of the cargo on board the plane, he proceeded to taxi for takeoff down runway 22. To the best of his knowledge, the wind direction and velocity were generally about the same as that encountered during the landing. As a result of the right quartering tailwind, he applied down aileron to the right wing and down elevator (yoke forward). The plane's wing flaps were retracted. As the airplane taxied beyond the cover of several buildings, it began to slide sideways to the left. He applied additional power to about 1700-1800 RPMs but the airplane kept sliding and flipped upside down near the center crown of the runway.

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.

Loss of control - on ground/waterTaxi - to takeoff
Directional control - not maintainedPilot in commandCause
Terrain condition - snow coveredFactor
Terrain condition - icyFactor
Weather condition - high windFactor
Weather condition - crosswindFactor
Nose overTaxi - to takeoff

Aircraft

Registration
N60491
Reported as
Cessna 206
Category
Airplane
Airframe hours
4,105
Engine
Continental IO-520, 300 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Yute Air Alaska, Inc
Registered owner
Yute Air Alaska, Inc
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · January 31, 1994 · 19 hours before
Departed
KNW · New Stuyahok, AK
Flight plan
Company VFR
Airport
KGK · Koliginak, runway 22, 1,400 × 50 ft, gravel

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
26
Certificates
Commercial, Flight instructor
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
1,520 total · 15 in this make and model · 1,350 as pilot in command · 50 in the last 90 days · 40 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
320° at 25 knots, gusting 30
Visibility
20 statute miles
Lowest ceiling
None
Temperature
16 °F

FAA reports on this event · 1

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