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NTSB Report
May 14, 1992 · Schweizer G-164D · N8331K
Welsh, LA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 14, 1992
Injury Outcomes
No injuries (1 uninjured)
Location
Welsh, LA
Aircraft
Schweizer G-164D
Tail Number
N8331K
Operator
Lyon Flying Service
Injuries
None
Aircraft Damage
Substantial
NTSB Number
FTW92LA132
IMMEDIATELY AFTER LIFTOFF, THE PILOT HEARD AN EXPLOSION AND FLAMES BRIEFLY ENGULFED THE COCKPIT. AS THE FLAMES CLEARED THE ENGINE SEIZED AND THE AIRPLANE SETTLED BACK ONTO THE STRIP. THE PILOT APPLIED MAXIMUM BRAKING; HOWEVER, THE AIRPLANE DEVELOPED A LEFT DRIFT THAT HE WAS UNABLE TO CORRECT. THE AIRPLANE SUBSEQUENTLY DEPARTED THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH A THREE FOOT DEEP DITCH. INVESTIGATION REVEALED THAT SEVERAL TURBINE BLADES HAD BEEN RELEASED FROM BOTH THE GAS PRODUCER AND POWER TURBINE WHEELS. THE MANUFACTURER REPORTED THAT THE BLADES WERE RELEASED AS A RESULT OF INTERFERENCE, BUT DID NOT REPORT THE REASON FOR THE INTERFERENCE.
NTSB Probable Cause
THE ENGINE FAILURE AT LIFTOFF DUE TO THE FAILURE OF MULTIPLE TURBINE BLADES AND THE PILOT'S INABILITY TO MAINTAIN DIRECTIONAL CONTROL DURING THE ABORTED TAKEOFF.
Full Narrative
IMMEDIATELY AFTER LIFTOFF, THE PILOT HEARD AN EXPLOSION AND FLAMES BRIEFLY ENGULFED THE COCKPIT. AS THE FLAMES CLEARED THE ENGINE SEIZED AND THE AIRPLANE SETTLED BACK ONTO THE STRIP. THE PILOT APPLIED MAXIMUM BRAKING; HOWEVER, THE AIRPLANE DEVELOPED A LEFT DRIFT THAT HE WAS UNABLE TO CORRECT. THE AIRPLANE SUBSEQUENTLY DEPARTED THE LEFT SIDE OF THE RUNWAY AND COLLIDED WITH A THREE FOOT DEEP DITCH. INVESTIGATION REVEALED THAT SEVERAL TURBINE BLADES HAD BEEN RELEASED FROM BOTH THE GAS PRODUCER AND POWER TURBINE WHEELS. THE MANUFACTURER REPORTED THAT THE BLADES WERE RELEASED AS A RESULT OF INTERFERENCE, BUT DID NOT REPORT THE REASON FOR THE INTERFERENCE.
Flight
Event TypeAccident
Event Time12:15 CDT
Nearest AirportPRIVATE (0nm N)
Runway18
Runway Length2000 ft
Runway Width50 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftSchweizer G-164D
Tail NumberN8331K
Aircraft CategoryAir
DamageSubstantial
OperatorLyon Flying Service
Operating RulePart 137
Engines1
Engine TypeTurboprop
Engine DetailsP&W · PT6-15AG · Turboprop · 680
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 44 · Second Class
Conditions
ConditionsVMC
LightDaylight
Wind180° @ 6 kt
Visibility7 sm
CeilingBroken clouds 2500 ft
Altimeter0
Weather SourcePILO