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Aviation safety reports, made easier to study

NTSB Reports is an independent research and search tool for public aviation accident and incident records. It brings NTSB aviation reports, structured fields, docket files, extracted figures, photos, videos, and update history into one searchable interface.

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NTSB Report

June 11, 1995 · Christen Industries A-1 · N9622V

Tyonek, AK

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
June 11, 1995
Injury Outcomes
No injuries (2 uninjured)
Location
Tyonek, AK
Aircraft
Christen Industries A-1
Tail Number
N9622V
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ANC95LA069

THE PILOT REPORTED HE WAS LANDING ON A SANDBAR NEAR THE MOUTH OF A RIVER WHEN HE NOTICED A 'SIGNIFICANT' DEPRESSION IN THE SANDBAR DURING THE LANDING ROLL. HE SAID THE AIRPLANE WAS GOING TOO FAST TO STOP, AND TOO SLOW TO ATTEMPT TO TAKEOFF AND MISS THE DEPRESSION. THE AIRPLANE SUSTAINED SUBSTANTIAL DAMAGE WHEN IT ENCOUNTERED THE ROUGH TERRAIN.

NTSB Probable Cause

THE PILOT'S SELECTION OF AN UNSUITABLE LANDING SITE. A FACTOR ASSOCIATED WITH THE ACCIDENT IS THE ROUGH AND UNEVEN SANDBAR.

Full Narrative

On June 10, 1995, about 1900 Alaska daylight time, a wheel equipped Christen A-1 "Husky" airplane, N9622V, registered to the pilot/operator, sustained substantial damage while landing on a sandbar at the mouth of the Olsen River. The accident location is approximately 12 miles north of Tyonek, Alaska. The airline transport certificated pilot and the sole passenger aboard were not injured. The personal flight operated in visual meteorological conditions without a flight plan. The pilot reported that during the landing roll he saw a "significant" depression in the sandbar, but that the airplane was going too fast to stop, and too slow to abort the landing and attempt to takeoff. He said the right main landing gear axle failed upon encountering the depression, the airplane swung to the right, and then the left main landing gear collapsed, allowing the airplane to nose down.

Flight

Event TypeAccident
Event Time19:00 AKDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftChristen Industries A-1
Tail NumberN9622V
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-C1G · Reciprocating · 180
Seats2

People & Injuries

Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 44 · First Class

Conditions

ConditionsVMC
LightDaylight
WindCalm
Visibility100 sm
CeilingNone
Temperature / Dew Point70 F / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data