Estado:	Final
Fecha:	30 ENE 2001
Hora:	20:55
Tipo:	Boeing 777-31H
Operador:	Emirates Airlines
Registración:	A6-EMM
Numéro de série:	29062/256
Año de Construcción:	1999
Motores:	2 Rolls Royce 892 Trent
Tripulación:	Fatalidades: 0 / Ocupantes:
Pasajeros:	Fatalidades: 0 / Ocupantes: 213
Total:	Fatalidades: 0 / Ocupantes:
Daños en la Aeronave:	Menor
Consecuencias:	Repaired
Ubicación:	Melbourne-Tullamarine Airport, VIC (MEL) (Australia)
Fase:	Despegue (TOF)
Naturaleza:	Vuelo Internacional Programado
Aeropuerto de Salida:	Melbourne-Tullamarine Airport, VIC (MEL/YMML), Australia
Aeropuerto de Llegada:	Singapore-Changi International Airport (SIN/WSSS), Singapur
Número de Vuelo:	069

Descripción:
Flight 069 aborted its take-off run on runway 16 at low speed as a result of a failure within the left (No.1) engine. Although the failure was associated with a large compressor surge within the engine, no subsequent fire developed and the aircraft was able to safely return to the terminal building on its remaining serviceable engine. Failure of the Rolls Royce RB211 Trent 892 engine was a result of the release of a single blade from the low-pressure compressor (fan) rotor disk. The blade release caused extensive damage to the remainder of the fan and the intake shroud, however the event was fully contained. The only escape of debris from the engine was small, low energy fragments, causing minor damage to the fuselage and the opposite engine.

CONCLUSION - Findings:
- The engine failed as a direct result of the loss of a single low-pressure compressor (fan) blade.
- The failure was contained.
- Release of the blade occurred due to the initiation and growth of fatigue cracking within the convex root of the component.
- The blade was free from any material or manufacturing defects that could have influenced the failure.
- The development of fatigue cracking was attributed to the synergistic effects of extended periods of high power operation and uneven blade root seating.
- The uneven blade root seating stemmed from the breakdown of the dry-film lubricant layer between the load bearing surfaces, allowing irregular surface galling and micro-welding damage to accumulate.
- B777-300 aircraft operating in hot, dry environments typically require extended periods of high power operation in order to meet the specified performance requirements. The operations of aircraft A6-EMM were typical of this.

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