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NTSB Report
February 17, 1982 · Boeing 727-235 · N4734
Miami, FL
Overview
Report Status
Preliminary report
Event Type
Accident
Date
February 17, 1982
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury), 51 uninjured
Location
Miami, FL
Aircraft
Boeing 727-235
Tail Number
N4734
Operator
Pan American World Airways In
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
MIA82FA051
DURING TAKEOFF ROLL A LOUD BANG WAS HEARD & THE TAKEOFF ABORTED. THE TOWER ADVISED THE FLT OF EXTENSIVE FIRE IN THE TAILAREA. THE PLT CLEARED THE ACTIVE RWY & THE ACFT WAS EVACUATED. 1 PAX SUFFERED A FRACTURED ANKLE & ANOTHER A SPRAINED ANKLE. AN EXPLOSION HAD OCCURRED IN THE #2 ENG DUE TO A FAILED FRONT COMPRESSOR FRONT HUB. THE MAIN FUEL SUPPLY LINE TO THE #2 ENG WAS SEVERED CAUSING THE FIRE. METALLURGICAL EXAMINATION REVEALED THAT THE HUB FRACTURED RADIALLY THROUGH THE BORE & RIM IN TWO LOCATIONS RELEASING TWO SECTIONS. FATIGUE HAD ORIGINATED AT A NONCONFORMING CIRCUMFERENTIAL GROOVE AT THE REAR OF ONE TIE ROD HOLE. THE SURFACE OF THE GROOVE EXHIBITED A VERY ROUGH, SMEARED APPEARANCE & THERE WERE NUMEROUS AXIAL CRACKS.
Full Narrative
DURING TAKEOFF ROLL A LOUD BANG WAS HEARD & THE TAKEOFF ABORTED. THE TOWER ADVISED THE FLT OF EXTENSIVE FIRE IN THE TAILAREA. THE PLT CLEARED THE ACTIVE RWY & THE ACFT WAS EVACUATED. 1 PAX SUFFERED A FRACTURED ANKLE & ANOTHER A SPRAINED ANKLE. AN EXPLOSION HAD OCCURRED IN THE #2 ENG DUE TO A FAILED FRONT COMPRESSOR FRONT HUB. THE MAIN FUEL SUPPLY LINE TO THE #2 ENG WAS SEVERED CAUSING THE FIRE. METALLURGICAL EXAMINATION REVEALED THAT THE HUB FRACTURED RADIALLY THROUGH THE BORE & RIM IN TWO LOCATIONS RELEASING TWO SECTIONS. FATIGUE HAD ORIGINATED AT A NONCONFORMING CIRCUMFERENTIAL GROOVE AT THE REAR OF ONE TIE ROD HOLE. THE SURFACE OF THE GROOVE EXHIBITED A VERY ROUGH, SMEARED APPEARANCE & THERE WERE NUMEROUS AXIAL CRACKS.
Flight
Event TypeAccident
Event Time15:45 EST
Nearest AirportMiami International (0nm N)
Runway27
Runway Length13002 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireGrd
Aircraft ExplosionGrd
Aircraft
AircraftBoeing 727-235
Tail NumberN4734
Aircraft CategoryAir
DamageSubstantial
OperatorPan American World Airways In
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsP & W · JT8D-7B · Turbofan · 14000
Seats136
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury), 51 uninjured
Fatal0
Serious1
Minor1
Uninjured51
Total53
Crew 1Age 42 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind60° @ 4 kt
Visibility7 sm
CeilingOvercast 8000 ft
Temperature / Dew Point15 C / 32 C
Altimeter29.00 inHg