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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

September 26, 1991 · Bell BH-47-G3B1 · N5474A

Rock Island, WA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
September 26, 1991
Injury Outcomes
No injuries (1 uninjured)
Location
Rock Island, WA
Aircraft
Bell BH-47-G3B1
Tail Number
N5474A
Operator
Richard H Butz
Injuries
None
Aircraft Damage
Destroyed
NTSB Number
SEA91LA251

THE PILOT HOOKED THE ACFT LDG GEAR SKID WHILE LANDING ON A TRAILER AND WAS UNABLE TO FREE THE SKID. HE ABANDONED THE RUNNING ACFT, WHICH ROLLED OFF THE TRAILER AND DOWN AN EMBANKMENT. THE ACFT WAS DESTROYED BY IMPACT AND A POST IMPACT FIRE.

NTSB Probable Cause

THE FAILURE OF THE PILOT TO USE THE PROPER TOUCHDOWN POINT WHILE LANDING ON A TRAILER.

Full Narrative

THE PILOT HOOKED THE ACFT LDG GEAR SKID WHILE LANDING ON A TRAILER AND WAS UNABLE TO FREE THE SKID. HE ABANDONED THE RUNNING ACFT, WHICH ROLLED OFF THE TRAILER AND DOWN AN EMBANKMENT. THE ACFT WAS DESTROYED BY IMPACT AND A POST IMPACT FIRE.

Flight

Event TypeAccident
Event Time18:30 PDT
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireGrd
Aircraft ExplosionGrd

Aircraft

AircraftBell BH-47-G3B1
Tail NumberN5474A
Aircraft CategoryHeli
DamageDestroyed
OperatorRichard H Butz
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · TVO-435 · Reciprocating · 270
Seats3

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 43 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind90° @ 7 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point48
Altimeter29.00 inHg
Observation Time01:49
Weather SourceWFAC

Appendix: Source Data