NTSB Identification: MIA86IA072.
The docket is stored on NTSB microfiche number 30551.
Scheduled 14 CFR (D.B.A. EALA )
Incident occurred Wednesday, February 05, 1986 in NEW YORK, NY
Aircraft: BOEING 727-225, registration: N812EA
Injuries: 8 Uninjured.
NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.
WHILE ON WALK AROUND INSPECTION THE FLIGHT CREW NOTICED A BURNED THROUGH AREA ON THE NUMBER ONE ENGINE OUTBOARD COWLING. THE ENGINE WAS REMOVED FROM SERVICE AND DISASSEMBLED AND EXAMINED. THE FAN DUCT AND THE ENGINE COMBUSTION OUTER LINER WERE ALSO BURNED THROUGH. THE NUMBER 7,8,9, COMBUSTION CHAMBERS WERE FOUND TO BE PARTIALLY BURNED AWAY AND DISTORTED. THE COMBUSTION CHAMBERS HAD BEEN PREVIOUSLY REMOVED AND WELD REPAIRED ABOUT 16000 HOURS PRIOR TO THIS FAILURE. THE CHAMBERS EXHIBITED THERMAL FATIGUE FAILURES.
The National Transportation Safety Board determines the probable cause(s) of this incident to be:COMBUSTION ASSEMBLY,COMBUSTION LINER..FATIGUE
COMBUSTION ASSEMBLY,OUTER CASING..BURNED
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