ANC06CA011

NTSB accident investigation · Cessna 208B · Newtok, AK · December 13, 2005

Accident · No injuriesData collectionFinal report
Date
December 13, 2005, 15:50 local (19:50 UTC)
Place
Newtok, AK
Injuries
4 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N454SFCessna 208B
Weather
Visual (VMC) · Day
Status
Completed · report March 28, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20051213030319A
Case key
62956

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 inadequate compensation for gusting crosswind conditions, which resulted in the airplane exiting the runway, encountering snow, and the nose gear collapsing. Factors associated with the accident were the gusting wind and the icy 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/waterTakeoff - roll/run
Weather condition - gustsFactor
Weather condition - crosswindFactor
Compensation for wind conditions - inadequatePilot in commandCause
Terrain condition - runway
Terrain condition - icyFactor
On ground/water encounter with terrain/waterTakeoff - roll/run
Terrain condition - snow covered

Analysis

The airline transport certificated pilot of the Title 14, CFR Part 135 flight was taking off on runway 33, when a gust of wind blew the airplane to the left edge of the runway where it encountered a snow berm. The pilot reported the runway was ice-covered, and the wind was from 060 degrees at 20 knots, with gusts to 25 knots. The airplane exited the runway, the nose gear collapsed, and the left wing struck the ground. According to the director of operations for the operator, there were no known mechanical anomalies with the airplane prior to the accident. He said the airplane sustained damage to the left wing, nose gear and propeller during the accident.

Factual narrative

The airline transport certificated pilot of the Title 14, CFR Part 135 flight was taking off on runway 33, when a gust of wind blew the airplane to the left edge of the runway where it encountered a snow berm. The pilot reported the runway was ice-covered, and the wind was from 060 degrees at 20 knots, with gusts to 25 knots. The airplane exited the runway, the nose gear collapsed, and the left wing struck the ground. According to the director of operations for the operator, there were no known mechanical anomalies with the airplane prior to the accident. He said the airplane sustained damage to the left wing, nose gear and propeller during the accident.

Aircraft

Registration
N454SF
Reported as
Cessna 208B
Category
Airplane
Serial number
208B-0797
Engine
Pratt & Whitney Canada PT6A-114A, 675 horsepower, turbo prop
Damage
Substantial damage
Flight
Part 135
Registered owner
Grant Aviation Inc.
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
AAIP · April 1, 2005
Departed
PAEW · Newtok, AK
Destination
PABE · Bethel, 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
38
Injuries
None
Certificate
Airline transport
Airplane ratings
Multi-engine land, Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 1, With waivers/limitations
Last flight review
September 1, 2005
Seat
Left
Flight hours
8,313 total · 282 in this make and model · 273 in the last 90 days · 64 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
60° at 20 knots, gusting 25
Visibility
10 statute miles
Lowest ceiling
None
Temperature
23 °F
Altimeter
29.20 inHg
Observed at
PAEW

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 N454SF · 3

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