NTSB Identification: MIA83FA036
Scheduled 14 CFR Part 129: Foreign operation of AEROTAL LTDA.
Accident occurred Saturday, November 27, 1982 in MIAMI, FL
Probable Cause Approval Date: 11/27/1983
Aircraft: BOEING 707-323C, registration: HK284
Injuries: 116 Uninjured.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

ACCORDING TO THE FLIGHT CREW, A LOUD EXPLOSION WAS HEARD A FEW SECONDS AFTER REACHING TAKEOFF POWER AND THE TAKEOFF WAS ABORTED. WHILE TAXIING, THE TOWER INFORMED THE FLIGHT CREW THAT FLAMES WERE COMING FROM THE NO. 4 ENGINE. THE AIRCREW STOPPED THE AIRCRAFT AND COMPLETED THE ENGINE FIRE PROCEDURES; HOWEVER, THE AIRPORT FIRE FIGHTERS EXTINGUISHED THE FIRE. AN INVESTIGATION REVEALED THAT THE NO. 4 ENGINE HAD FAILED AND HIGH ENERGY ENGINE PARTS WERE RELEASED WHICH RESULTED IN DAMAGE TO THE AIRFRAME AND THE NO. 3 ENGINE. MOST OF THE ROTATING COMPONENTS, FORWARD OF 7TH STAGE COMPRESSOR DISK ASSEMBLY, WERE RELEASED DURING THE EXPLOSIVE FAILURE. AN EXAMINATION OF THE FIRST STAGE COMPRESSOR FAN BLADES SHOWED THAT THE NO. 15 FIRST STAGE FAN BLADE, PN 531601K, HAD FAILED FROM FATIGUE. THE FAILURE OCCURRED 3.2 HRS AFTER OVERHAUL.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

COMPRESSOR ASSEMBLY,FORWARD FAN..FATIGUE

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

MAINTENANCE,OVERHAUL..INADEQUATE..OTHER MAINTENANCE PERSONNEL

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