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NTSB Report
October 12, 1992 · Boeing 737-300 · N586US
Pittsburgh, PA
Overview
Report Status
Probable Cause
Event Type
Incident
Date
October 12, 1992
Injury Outcomes
No injuries (133 uninjured)
Location
Pittsburgh, PA
Aircraft
Boeing 737-300
Tail Number
N586US
Operator
Usair
Injuries
None
NTSB Number
NYC93IA017
THE AIR CARRIER B 737 300 WAS ON TAKEOFF ROLL, WHEN THE AIRCREW WAS ADVISED BY OTHER AIRPLANES THAT 'SMOKE AND FLAMES WERE...COMING FROM THE RIGHT ENGINE.' THE CREW ABORTED THE TAKEOFF, STOPPED THE AIRPLANE ON THE RUNWAY AND ORDERED AN EVACUATION BY THE EMERGENCY SLIDES. NONE OF THE 5 CREWMEMBERS NOR THE 128 PASSENGERS WERE INJURED. THE ENGINE FIRE WAS SUPPRESSED WHEN THE ENGINE WAS SHUTDOWN. THE FAILURE WAS CONTAINED TO THE ENGINE INTERIOR. EXAMINATION OF THE ENGINE REVEALED A HIGH CYCLE FATIGUE FAILURE OF 2 BLADES OF THE STAGE 1 HIGH PRESSURE COMPRESSOR.
NTSB Probable Cause
THE HIGH CYCLE FATIGUE FAILURE OF BLADES ON THE STAGE 1 HIGH PRESSURE COMPRESSOR, WHICH RESULTED IN BLADE FRACTURE AND SUBSEQUENT INTERNAL ENGINE DAMAGE AND FIRE.
Full Narrative
THE AIR CARRIER B 737 300 WAS ON TAKEOFF ROLL, WHEN THE AIRCREW WAS ADVISED BY OTHER AIRPLANES THAT 'SMOKE AND FLAMES WERE...COMING FROM THE RIGHT ENGINE.' THE CREW ABORTED THE TAKEOFF, STOPPED THE AIRPLANE ON THE RUNWAY AND ORDERED AN EVACUATION BY THE EMERGENCY SLIDES. NONE OF THE 5 CREWMEMBERS NOR THE 128 PASSENGERS WERE INJURED. THE ENGINE FIRE WAS SUPPRESSED WHEN THE ENGINE WAS SHUTDOWN. THE FAILURE WAS CONTAINED TO THE ENGINE INTERIOR. EXAMINATION OF THE ENGINE REVEALED A HIGH CYCLE FATIGUE FAILURE OF 2 BLADES OF THE STAGE 1 HIGH PRESSURE COMPRESSOR.
Flight
Event TypeIncident
Event Time10:15 EDT
Nearest AirportPittsburgh Int'L (0nm)
Runway28
Runway Length8039 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-300
Tail NumberN586US
Aircraft CategoryAir
OperatorUsair
Operating RulePart 121
Engines2
Engine TypeTurbojet
Engine DetailsGe · CFM 56-3B2/B1 · Turbojet · 22000
Seats133
People & Injuries
Injury SummaryNo injuries (133 uninjured)
Fatal0
Serious0
Minor0
Uninjured133
Total133
Crew 1Age 42 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind250° @ 9 kt
Visibility7 sm
CeilingNone
Temperature / Dew Point46 / 45 C
Altimeter29.00 inHg
Weather SourcePILO