ANC09CA027

NTSB accident investigation · Cessna 180K · Bettles, AK · April 3, 2009

Accident · No injuriesData collectionFinal report
Date
April 2, 2009, 17:00 local (Apr 3, 2009, 01:00 UTC)
Place
Bettles, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2801KCessna 180K
Defining event
Landing: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed · report July 28, 2009
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration (Airworthiness)
FAA report
20090402046879A
Case key
73612

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 selection of an unsuitable landing area.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Terrain: rough terrainEnvironmental issues › Physical environment · Contributed to outcomeCessna 180K: 1 caseAll aircraft: 442 cases

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The commercial pilot reported that he was landing on the frozen snow-covered lake in a ski-equipped airplane. During the landing roll the airplane's main landing gear skis encountered a snowdrift, which stripped the nuts that connect the skis to the main landing gear axle. Both skis separated and the airplane's left main landing gear leg collapsed. The left wing struck the snow-covered frozen lake. The airplane sustained substantial damage to the left wing and fuselage. The pilot said that there were no preaccident mechanical problems with the airplane, and noted in his report to the NTSB that he should have inspected the landing site before landing, then selected a better area to land on.

Factual narrative

The commercial pilot reported that he was landing on the frozen snow-covered lake in a ski-equipped airplane. During the landing roll the airplane's main landing gear skis encountered a snowdrift, which stripped the nuts that connect the skis to the main landing gear axle. Both skis separated and the airplane's left main landing gear leg collapsed. The left wing struck the snow-covered frozen lake. The airplane sustained substantial damage to the left wing and fuselage. The pilot said there were no preaccident mechanical problems with the airplane, and noted in his report to the NTSB that he should have inspected the landing site before landing, then selected a better area to land on.

Aircraft

Registration
N2801K
Reported as
Cessna 180K
Category
Airplane
Serial number
18053072
Airframe hours
8,913
Engine
Cont Motor O-470 SERIES, 230 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Carrier Timothy Levite
Registered owner
Carrier Timothy Levite
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 25, 2008 · 60 hours before
Departed
PAFA · Fairbanks, AK
Destination
Bettles, AK
Flight plan
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
53
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, With waivers/limitations
Last flight review
July 11, 2007
Seat
Left
Flight hours
1,671 total · 190 in this make and model · 1,640 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
19 °F

Docket · 1

The files NTSB released with the investigation on June 1, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 654 KB in all.

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 N2801K · 1

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