ANC98LA161

NTSB accident investigation · Piper PA-18 · Sleetmute, AK · September 26, 1998

Accident · Minor injuriesLimited investigationFinal report
Date
September 26, 1998, 13:30 local (21:30 UTC)
Place
Sleetmute, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N5697YPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report March 30, 2000
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
19980926026599A
Case key
44040

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 failure to maintain directional control. Contributing factors were the gusty crosswind conditions.

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
Directional control - not maintainedPilot in commandCause
Weather condition - crosswindFactor

Analysis

The airplane was departing a ridgetop site with a right crosswind gusting to 25 knots. The pilot told the NTSB investigator-in-charge that a gust of wind forced the airplane off the left side of the ridge, and the left wing struck the ground.

Factual narrative

On September 26, 1998, at 1330 Alaska daylight time, a Piper PA-18, tundra tire equipped airplane, N5697Y, sustained substantial damage when it nosed over during takeoff from an off airport landing site, about 55 miles south-southeast of Sleetmute, Alaska. The solo commercial pilot sustained minor injuries. The airplane was owned and operated by Carl E. Brent, dba Alaska Trophy Connection, of Wasilla, Alaska. The flight was conducted under 14 CFR Part 135, as an on demand air taxi flight supporting a hunting lodge. The flight was departing from a ridgetop landing site to transport caribou meat to the Taylor Mountain Mine airstrip, three miles to the northwest. Visual meteorological conditions prevailed at the time of the accident, and a company VFR flight plan was filed.

The pilot told the NTSB investigator-in-charge, during a telephone interview on September 27, and wrote in his NTSB Pilot / Operator report, that there was a crosswind from the right, gusting to 25 knots. He said that during the takeoff run, the wind got under the right wing, and the airplane was forced over the left edge of the ridge. The left wing contacted the ground, and the airplane slid to a stop 150 feet below the ridge.

Aircraft

Registration
N5697Y
Reported as
Piper PA-18
Category
Airplane
Serial number
18-8293
Airframe hours
4,291
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 135
Registered owner
Carl E. Brent
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · September 22, 1998 · 11 hours before
Destination
AK64 · Taylor Mtn Mine, AK
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
40
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
3,491 total · 3,084 in this make and model · 3,491 as pilot in command · 211 in the last 90 days · 86 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
180° at 15 knots, gusting 25
Visibility
50 statute miles
Lowest ceiling
None
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.