ANC96LA138

NTSB accident investigation · Piper PA-18 · Mccarthy, AK · September 1, 1996

Accident · No injuriesLimited investigationFinal report
Date
August 31, 1996, 20:00 local (Sep 1, 1996, 04:00 UTC)
Place
Mccarthy, AK
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1879APiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report May 23, 1997
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19960831025339A
Case key
2892

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 gusty wind conditions, and his selection of an unsuitable landing/takeoff site. A factor associated with the accident was the gusty wind.

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 objectTakeoff - roll/run
Terrain condition - mountainous/hilly
Terrain condition - high vegetation
Weather condition - gustsFactor
Compensation for wind conditions - inadequatePilot in commandCause
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Loss of control - on ground/waterTakeoff - roll/run
Main gear collapsedTakeoff - roll/run

Analysis

The pilot reported he was attempting to take off from a remote ridgeline with one hunting client aboard. He said the wind was gusting from the southeast at 5 to 20 knots. During the takeoff roll, the right wing struck Alder bushes, and the airplane was pulled to the right, collapsing the left main landing gear and damaging the left wing. The pilot wrote in his report that the accident could have been avoided by not attempting to take off from the ridge in gusty wind conditions.

Factual narrative

On August 31, 1996, about 2000 Alaska daylight time, a wheel equipped Piper PA-18 airplane, N1879A, sustained substantial damage when it collided with terrain during an attempted takeoff from an off airport site near Mc Carthy, Alaska. The commercial certificated pilot and the sole passenger aboard were not injured. The local, 14 CFR Part 91 hunt/guide flight operated in visual meteorological conditions. The flight last departed the Ultima Thule Lodge, located on the Chitina River, about 1830.

The pilot of the airplane is the co-owner of the Ultima Thule Lodge. The pilot reported he was attempting to takeoff from a ridge in gusty wind conditions. During the takeoff roll, the right wingtip struck adjoining brush and pulled the airplane sideways. The left wing subsequently hit the ground and the left main landing gear collapsed.

The pilot said in his written report to the NTSB the accident could have been prevented by not attempting to takeoff from the mountaintop strip in gusty wind conditions.

Aircraft

Registration
N1879A
Reported as
Piper PA-18
Category
Airplane
Serial number
18-1711
Engine
Lycoming O-320-B2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Registered owner
Paul E. Claus
Airworthiness certificate
Standard, Utility; Standard, Normal
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
36
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
15,000 total · 8,000 in this make and model · 14,800 as pilot in command · 300 in the last 90 days · 100 in the last 30 days · 6 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
125° at 5 knots, gusting 20
Visibility
20 statute miles
Lowest ceiling
7,000 ft overcast
Temperature
39 °F

FAA reports on this event · 1

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