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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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September 4, 1985 · Bell 47G-2 · N8429E

Moore Haven, FL

Overview

Report Status
Preliminary report
Event Type
Accident
Date
September 4, 1985
Injury Outcomes
No injuries (1 uninjured)
Location
Moore Haven, FL
Aircraft
Bell 47G-2
Tail Number
N8429E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
MIA85LA243

THE PLT STATED THAT WHILE FLYING AROUND HIS PROPERTY, HE SLOWED THE HELICOPTER UP TO DESCEND AND LAND, AT APRX 40 FT ALTITUDE THE ENG LOST POWER DUE TO CARBURATOR ICE BUILDUP. HE AUTOROTATED TO A LANDING & ON TOUCHDOWN HIS RIGHT SKID CONTACTED A LARGE BOULDER AND THE MAIN ROTOR TILTED BACK AND STRUCK THE TAILBOOM. INVESTIGATION REVEALED, AT THE TIME OF THE ACCIDENT THE HELICOPTER WAS OPERATING AT A TEMPERATURE AND DEWPOINT THAT IN REFERENCE TO PERFORMANCE CHARTS IS CONDUSIVE TO CARBURATOR VENTURI ICING.

Full Narrative

THE PLT STATED THAT WHILE FLYING AROUND HIS PROPERTY, HE SLOWED THE HELICOPTER UP TO DESCEND AND LAND, AT APRX 40 FT ALTITUDE THE ENG LOST POWER DUE TO CARBURATOR ICE BUILDUP. HE AUTOROTATED TO A LANDING & ON TOUCHDOWN HIS RIGHT SKID CONTACTED A LARGE BOULDER AND THE MAIN ROTOR TILTED BACK AND STRUCK THE TAILBOOM. INVESTIGATION REVEALED, AT THE TIME OF THE ACCIDENT THE HELICOPTER WAS OPERATING AT A TEMPERATURE AND DEWPOINT THAT IN REFERENCE TO PERFORMANCE CHARTS IS CONDUSIVE TO CARBURATOR VENTURI ICING.

Flight

Event TypeAccident
Event Time08:30 EDT
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell 47G-2
Tail NumberN8429E
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435-AIB · Reciprocating · 200
Seats3

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 35 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind60° @ 6 kt
Visibility10 sm
CeilingNone
Altimeter30.00 inHg
Observation Time12:30
Weather SourceWFAC

Appendix: Source Data