MIAMI, FL, USA
N4734
BOEING 727-235
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.
Source: NTSB Aviation Accident Database
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