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NTSB Report

May 9, 1985 · Consolidated-Vultee PBY-5A · N84857

Lewistown, MT

Overview

Report Status

Preliminary report

Event Type

Accident

Date

May 9, 1985

Injury Outcomes

3 injuries (1 fatality, 2 minor injuries)

Location

Lewistown, MT

Aircraft

Consolidated-Vultee PBY-5A

Tail Number

N84857

Operator

Government of Israel

Injuries

Fatal

Aircraft Damage

Substantial

NTSB Number

DEN85FA131

DURING TAXI TO TAKEOFF THE BRAKES FAILED. THE PLT ATTEMPTED TO GROUNDLOOP THE ACFT. THE ACFT ROLLED DOWN HILL AND COLLIDED WITH A GULLY. THE PLT WAS FATALLY INJURED. DURING PREFLIGHT THE CO-PLT INADVERTENTLY ADDED HYDRAULIC FLUID IN THE ALCOHOL TANK. THE HYDRAULIC PUMP CAVITATED. THE PLT FAILED TO USE THE HYDRAULIC EMERGENCY HAND PUMP OR THE A.C. ELECTRIC PUMP.

Full Narrative

DURING TAXI TO TAKEOFF THE BRAKES FAILED. THE PLT ATTEMPTED TO GROUNDLOOP THE ACFT. THE ACFT ROLLED DOWN HILL AND COLLIDED WITH A GULLY. THE PLT WAS FATALLY INJURED. DURING PREFLIGHT THE CO-PLT INADVERTENTLY ADDED HYDRAULIC FLUID IN THE ALCOHOL TANK. THE HYDRAULIC PUMP CAVITATED. THE PLT FAILED TO USE THE HYDRAULIC EMERGENCY HAND PUMP OR THE A.C. ELECTRIC PUMP.

Flight

Event TypeAccident

Event Time08:44 MDT

Nearest AirportLewistown (0nm N)

Runway25

Runway Length7984 ft

Runway Width100 ft

Flight Plan FiledNone

Aircraft FireNo

Aircraft ExplosionNo

Aircraft

AircraftConsolidated-Vultee PBY-5A

Tail NumberN84857

Aircraft CategoryAir

DamageSubstantial

OperatorGovernment of Israel

Operating RulePart 91

Engines2

Engine TypeReciprocating

Engine DetailsP&W · R1830-94-M2 · Reciprocating · 1350

Seats3

People & Injuries

Injury Summary3 injuries (1 fatality, 2 minor injuries)

Fatal1

Serious0

Minor2

Uninjured0

Total3

Crew 1Age 52 · Second Class

Conditions

ConditionsVMC

LightDaylight

Wind120° @ 3 kt

Visibility30 sm

CeilingBroken clouds 8000 ft

Temperature / Dew Point55 / 45 C

Altimeter29.00 inHg

Observation Time14:52

Weather SourceWIT

500 – Data service is offline

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May 9, 1985 · Consolidated-Vultee PBY-5A · N84857

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