ANC95LA168

NTSB accident investigation · Piper PA-18-150 · Kivalina, AK · September 12, 1995

Accident · Minor injuriesLimited investigationFinal report
Date
September 12, 1995, 14:00 local (22:00 UTC)
Place
Kivalina, AK
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N7562KPiper PA-18-150
Weather
Visual (VMC) · Day
Status
Completed · report April 29, 1996
Report
Approved by Office Director
NTSB office
Alaska Regional Office
Case key
2739

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The pilot's selection of unsuitable terrain for takeoff. A factor relating to the accident was: the rough/uneven 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 encounter with terrain/waterTakeoff - roll/run
Terrain condition - sand bar
Terrain condition - rough/unevenFactor
Unsuitable terrain or takeoff/landing/taxi area - selectedPilot in commandCause
Loss of control - in flightTakeoff
Aircraft control - not possiblePilot in command
Incapacitation(loss of consciousness)Pilot in command
In flight collision with terrain/waterTakeoff

Analysis

The pilot reported that he was attempting to takeoff from a gravel bar in a Tundra Tire equipped airplane. He said the airplane hit a gravel berm during the takeoff roll, which bounced the airplane into the air and caused him to strike his head inside the airplane structure and lose consciousness. The airplane then went out of control and crashed.

Factual narrative

On September 12, 1995, about 1400 Alaska daylight time, a Tundra Tire equipped Piper PA-18-150 airplane, N7562K, sustained substantial damage during an attempted takeoff from a gravel bar located approximately 25 miles northeast of Kivalina, Alaska. The solo private pilot received minor injuries. The hunt/guide business flight operated in visual meteorological conditions without a flight plan. The intended destination was Kotzebue, Alaska.

The pilot reported that during the takeoff roll the airplane struck a gravel berm. The impact with the berm was violent enough to bounce the airplane into the air, and caused the pilot to strike his head inside the airplane structure and become semi- conscious. The pilot said he then lost control of the airplane, the airplane stalled and crashed.

Aircraft

Registration
N7562K
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-277
Airframe hours
4,023
Engine
Lycoming O-320-A2B, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Business · Part 91
Registered owner
Henry C. Clark
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 22, 1995 · 120 hours before
Departed
OTZ · Kotzebue, AK
Destination
OTZ · 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
53
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
3,128 total · 3,078 in this make and model · 180 in the last 90 days · 97 in the last 30 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 3 knots
Visibility
90 statute miles
Lowest ceiling
None
Temperature
55 °F