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NTSB Report

August 7, 1988 · Sikorsky S-76A · N69WW

Teterboro, NJ

Overview

Report Status

Preliminary report

Event Type

Accident

Date

August 7, 1988

Injury Outcomes

No injuries (4 uninjured)

Location

Teterboro, NJ

Aircraft

Sikorsky S-76A

Tail Number

N69WW

Operator

Nimad Aviation

Injuries

None

Aircraft Damage

Substantial

NTSB Number

NYC88LA204

THE S-76 HELICOPTER WAS TAXIING ON ITS COMPANY RAMP WHEN THE COPILOT TAXIED ONTO A GRASS AREA. DURING A LEFT TURN THE RIGHT MAIN WHEEL STUCK IN A SOFT SPOT AND THE HELICOPTER ROLLED OVER ON ITS RIGHT SIDE RECEIVING SUBSTANTIAL DAMAGE. THE GROUND MANEUVER THAT PRECEDED THE ROLLOVER MET SEVERAL OF THE CRITERIA DESCRIBED IN THE FAA ADVISORY CIRCULAR FOR HELICOPTER DYNAMIC ROLLOVER.

Full Narrative

THE S-76 HELICOPTER WAS TAXIING ON ITS COMPANY RAMP WHEN THE COPILOT TAXIED ONTO A GRASS AREA. DURING A LEFT TURN THE RIGHT MAIN WHEEL STUCK IN A SOFT SPOT AND THE HELICOPTER ROLLED OVER ON ITS RIGHT SIDE RECEIVING SUBSTANTIAL DAMAGE. THE GROUND MANEUVER THAT PRECEDED THE ROLLOVER MET SEVERAL OF THE CRITERIA DESCRIBED IN THE FAA ADVISORY CIRCULAR FOR HELICOPTER DYNAMIC ROLLOVER.

Flight

Event TypeAccident

Event Time04:50 EDT

Nearest Airport0nm N

Runway0

Flight Plan FiledNone

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftSikorsky S-76A

Tail NumberN69WW

Aircraft CategoryHeli

DamageSubstantial

OperatorNimad Aviation

Operating RulePart 91

Engines2

Engine TypeTurboshaft

Engine DetailsAllison · 250-C30 · Turboshaft · 700

Seats8

People & Injuries

Injury SummaryNo injuries (4 uninjured)

Fatal0

Serious0

Minor0

Uninjured4

Total4

Crew 1Age 41 · Second Class

Conditions

ConditionsVMC

LightDark Night

Wind260° @ 5 kt

Visibility15 sm

CeilingBroken clouds 10000 ft

Altimeter29.00 inHg

Observation Time08:50

Weather SourceWFAC

500 – Data service is offline

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August 7, 1988 · Sikorsky S-76A · N69WW

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