ANC06CA013

NTSB accident investigation · Piper PA-18 · Skwentna, AK · December 21, 2005

Accident · No injuriesData collectionFinal report
Date
December 21, 2005, 16:00 local (20:00 UTC)
Place
Skwentna, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N237WTPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2006
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Parties
Federal Aviation Administration
Case key
63115

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, which resulted in an on ground collision with trees during the landing roll. Factors associated with the accident were the icy and snow-covered terrain.

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 collision with objectLanding - roll
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Terrain condition - snow coveredFactor
Terrain condition - icyFactor
Object - tree(s)

Analysis

The solo private pilot was landing a ski-equipped airplane on a frozen, snow-covered lake that was surrounded by trees. The pilot said that after touchdown, the airplane continued to slide on the icy, hard-packed snow, and subsequently collided with a stand of trees at the lake's edge. The airplane sustained structural damage to both wings. The pilot noted that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

The solo private pilot was landing a ski-equipped airplane on a frozen, snow-covered lake that was surrounded by trees. The pilot said that after touchdown, the airplane continued to slide on the icy, hard-packed snow, and subsequently collided with a stand of trees at the lake's edge. The airplane sustained structural damage to both wings. The pilot noted that there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N237WT
Reported as
Piper PA-18
Category
Airplane
Serial number
18-237
Airframe hours
5,394.7
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Scott M. Gage
Airworthiness certificate
Standard, Normal
Last inspection
Annual · October 1, 2005
Departed
Skwentna, AK
Destination
Skwentna, AK

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
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Front
Flight hours
500 total · 450 in this make and model · 500 as pilot in command · 30 in the last 90 days · 15 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
7 statute miles
Lowest ceiling
1,500 ft overcast

Other investigations on N237WT · 1

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