ANC01LA006

NTSB accident investigation · Piper PA-18 · Iliamna, AK · October 11, 2000

Accident · No injuriesLimited investigationFinal report
Date
October 11, 2000, 11:00 local (19:00 UTC)
Place
Iliamna, AK
Injuries
1 uninjured
Damage
Substantial damage
Aircraft
N7174KPiper PA-18
Weather
Visual (VMC) · Day
Status
Completed · report July 10, 2001
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20001011041919A
Case key
50445

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 weather evaluation. A factor in the accident was a high wind.

Analysis

The commercial certificated pilot landed on a remote area of tundra to pick up a hunting partner. He said the wind conditions were gusty as he landed in a northwest direction. He shut off the engine and was preparing to exit the airplane. As he was sitting in the airplane, still strapped in the seat harness, a gust of wind blew the airplane over on its back. The airplane received damage to the overhead cabin structure, and the right wing lift strut was kinked. In the Pilot/Operator report (NTSB Form 6120.1/2) submitted by the pilot, the pilot indicated the wind velocity at the accident site was 40 knots, with gusts to 50 knots.

Factual narrative

On October 11, 2000, about 1100 Alaska daylight time, a tundra tire equipped Piper PA-18 airplane, N7174K, sustained substantial damage after landing on the tundra, about 35 miles southwest of Iliamna, Alaska, about latitude 59 degrees, 38 minutes west, and longitude 156 degrees, 07 minutes west. The airplane was being operated as a visual flight rules (VFR) local area personal flight, when the accident occurred. The airplane was operated by the pilot. The commercial certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. The flight originated at the Iliamna Airport, Iliamna, about 1018.

During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on October 11, 2000, the pilot reported he landed on the tundra in the Stuyahok Hills area to pick up a hunting partner. He said the wind conditions were gusty as he landed in a northwest direction. He shut off the engine and was preparing to exit the airplane. As he was sitting in the airplane, still strapped in the seat harness, a gust of wind blew the airplane over on its back. The airplane received damage to the overhead cabin structure, and the right wing lift strut was kinked.

The closest official weather observation station is Iliamna. At 1053, an Aviation Routine Weather Report (METAR) was reporting in part: Wind, 360 degrees (true) at 18 knots with gusts to 26 knots; visibility, 10 statute miles; clouds and sky condition, clear; temperature, 32 degrees F; dew point, 17 degrees F; altimeter, 29.69 inHg.

In the Pilot/Operator report (NTSB Form 6120.1/2) submitted by the pilot, the pilot indicated the wind velocity at the accident site was 40 knots, with gusts to 50 knots.

Aircraft

Registration
N7174K
Reported as
Piper PA-18
Category
Airplane
Serial number
18-393
Airframe hours
2,892
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Frank Dinello
Airworthiness certificate
Standard, Normal
Last inspection
Annual · September 6, 2000
Departed
PAIL

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
40
Certificate
Commercial
Airplane ratings
Single-engine sea, Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
1,800 total

Weather

Conditions
Visual (VMC) · Day
Wind
0° at 40 knots, gusting 50
Visibility
30 statute miles
Lowest ceiling
None
Temperature
32 °F

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 N7174K · 2

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