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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

October 25, 1993 · Bell 47G2 · N866Z

Billingsley, AL

Overview

Report Status
Final with probable cause
Event Type
Accident
Date
October 25, 1993
Injury Outcomes
No injuries (1 uninjured)
Location
Billingsley, AL
Aircraft
Bell 47G2
Tail Number
N866Z
Injuries
None
Aircraft Damage
Substantial
NTSB Number
ATL94LA009

THE PILOT REPORTED THAT AS HE ATTEMPTED TO TAKEOFF FROM A TRANSPORT TRAILER, THE RIGHT SKID HOOKED A BRACKET. DYNAMIC ROLL- OVER WAS INDUCED AND THE HELICOPTER ROLLED UNTIL THE MAIN ROTOR BLADES IMPACTED THE GROUND.

NTSB Probable Cause

THE PILOT'S IMPROPER VERTICAL LIFTOFF WHICH RESULTED IN DYNAMIC ROLL-OVER AND THE MAIN ROTOR'S IMPACT WITH THE GROUND.

Full Narrative

On October 25, 1993, about 1130 central daylight time, a Bell 47G2 helicopter, N866Z, rolled over during takeoff from a transport trailer near Billingsley, Alabama. The helicopter was registered to and operated by Precision Air Services, Inc. It was operated under 14 CFR Part 137 and visual flight rules. A flight plan was not filed for the agricultural operation. The commercial pilot was not injured while the helicopter was substantially damaged. The flight was originating at the time of the accident. According to the pilot the right skid hooked a bracket on the trailer as lift off occurred. The helicopter rolled over onto its right side, which allowed the main rotor to contact the ground. The pilot stated that there were no mechanical malfunctions.

Flight

Event TypeAccident
Event Time11:30 CDT
Nearest Airport0nm
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftBell 47G2
Tail NumberN866Z
Aircraft CategoryHeli
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · VO-435-A1D · Reciprocating · 240
Seats2

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 48 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind70° @ 9 kt
Visibility7 sm
CeilingOvercast 25000 ft
Temperature / Dew Point66 F / 52
Altimeter30.00 inHg
Observation Time15:50

Appendix: Source Data