Beschrijving:
The first officer was performing the takeoff on runway 09L. Takeoff engine thrust was set at 1.42 EPR. All engines operated normally and the aircraft accelerated normally with no unusual vibration felt. Upon reaching the V 1 speed, they heard a loud bang and observed a flash on the right side of the aircraft. The aircraft veered slightly to the right. He, the captain, took control and rejected the takeoff. The flight engineer reported an engine failure. The aircraft was stopped on the runway about 1,000 feet from the departure end. The ATC local controller reported that the No. 4 engine was on fire. They performed the engine fire procedures and fired the engine fire bottles for the No. 4 engine. Airport emergency equipment arrived and extinguished the fire.
PROBABLE CAUSE: "Failure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine"
» Scramble 201(49)
| Status: | Accident investigation report completed and information captured |
| Datum: | maandag 23 oktober 1995 |
| Tijd: | 03:50 |
| Type: |  Boeing 747-121 (SCD) |
| Luchtvaartmaatschappij: | Tower Air |
| Registratie: | N613FF |
| Constructienummer: | 19647/16 |
| Bouwjaar: | 1970-01-31 (25 years 9 months) |
| Aantal vlieguren: | 22911 |
| Motoren: | 4 Pratt & Whitney JT9D-7AH |
| Bemanning: | slachtoffers: 0 / inzittenden: 3 |
| Passagiers: | slachtoffers: 0 / inzittenden: 2 |
| Totaal: | slachtoffers: 0 / inzittenden: 5 |
| Schade: | Groot |
| Gevolgen: | Repaired |
| Plaats: | Miami International Airport, FL (MIA) ( Verenigde Staten)
|
| Fase: | Start (TOF) |
| Soort vlucht: | Vracht |
| Vliegveld van vertrek: | Miami International Airport, FL (MIA/KMIA), Verenigde Staten |
| Port of Spain-Piarco Airport (POS/TTPP), Trinidad en Tobago | |
| Vluchtnummer: | 803 |
The first officer was performing the takeoff on runway 09L. Takeoff engine thrust was set at 1.42 EPR. All engines operated normally and the aircraft accelerated normally with no unusual vibration felt. Upon reaching the V 1 speed, they heard a loud bang and observed a flash on the right side of the aircraft. The aircraft veered slightly to the right. He, the captain, took control and rejected the takeoff. The flight engineer reported an engine failure. The aircraft was stopped on the runway about 1,000 feet from the departure end. The ATC local controller reported that the No. 4 engine was on fire. They performed the engine fire procedures and fired the engine fire bottles for the No. 4 engine. Airport emergency equipment arrived and extinguished the fire.
Probable Cause:
PROBABLE CAUSE: "Failure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine"
Accident investigation:
 |
|
Bronnen:
» NTSB» Scramble 201(49)
Foto's
Kaart
Deze kaart geeft het vliegveld van vetrek weer en de geplande bestemming van de vlucht. De lijn tussen de vliegvelden geeft niet de exacte vliegroute weer.
De afstand tussen Miami International Airport, FL en Port of Spain-Piarco Airport bedraagt 2597 km (1623 miles).
De afstand tussen Miami International Airport, FL en Port of Spain-Piarco Airport bedraagt 2597 km (1623 miles).
This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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