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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

February 3, 1989 · Schweizer G-164C · N6569K

Bayless, CA

Overview

Report Status
Probable Cause
Event Type
Accident
Date
February 3, 1989
Injury Outcomes
No injuries (1 uninjured)
Location
Bayless, CA
Aircraft
Schweizer G-164C
Tail Number
N6569K
Injuries
None
Aircraft Damage
Substantial
NTSB Number
LAX89DVG04

DURING CRUISE FLIGHT, N6569K EXPERIENCED A TOTAL LOSS OF ENGINE POWER. FLAMES AND PIECES OF METAL WERE OBSERVED COMING FROM THE ENGINE EXHAUST PIPE OF THE PRATT & WHITNEY PT6A TURBINE ENGINE. THE PILOT INITIATED A FORCED LANDING. DURING THE LANDING ROLL, THE LANDING GEAR COLLAPSED AND THE AIRPLANE COLLIDED WITH THE TERRAIN. DURING POST ACCIDENT INVESTIGATION THE ENGINE WAS DISASSEMBLED AND IT WAS FOUND THAT A PIECE FROM ONE OF THE TURBINE BLADES SEPARATED AND DAMAGED THE REMAINING TURBINE ASSEMBLIES DOWN STREAM.

NTSB Probable Cause

THE DEPARATION OF A TURBINE BLADE FOLLOWED BY A FORCED LANDING DURING WHICH THE LANDING GEAR COLLAPSED DUE TO OVERLOAD FORCES.

Full Narrative

DURING CRUISE FLIGHT, N6569K EXPERIENCED A TOTAL LOSS OF ENGINE POWER. FLAMES AND PIECES OF METAL WERE OBSERVED COMING FROM THE ENGINE EXHAUST PIPE OF THE PRATT & WHITNEY PT6A TURBINE ENGINE. THE PILOT INITIATED A FORCED LANDING. DURING THE LANDING ROLL, THE LANDING GEAR COLLAPSED AND THE AIRPLANE COLLIDED WITH THE TERRAIN. DURING POST ACCIDENT INVESTIGATION THE ENGINE WAS DISASSEMBLED AND IT WAS FOUND THAT A PIECE FROM ONE OF THE TURBINE BLADES SEPARATED AND DAMAGED THE REMAINING TURBINE ASSEMBLIES DOWN STREAM.

Flight

Event TypeAccident
Event Time11:00 PST
Nearest AirportPRIVATE (4nm)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo

Aircraft

AircraftSchweizer G-164C
Tail NumberN6569K
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsP&W · PT6A-34 · Turboprop · 750
Seats1

People & Injuries

Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 31 · Second Class

Conditions

ConditionsVMC
LightDaylight
Wind225° @ 8 kt, gusting 12 kt
Visibility10 sm
CeilingBroken clouds 2000 ft
Temperature / Dew Point63 F / 0 C
Altimeter0
Weather SourcePILO

Appendix: Source Data