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On 5 November 2010, a Boeing Company 747-438 aircraft, registered VH-OJD departed Changi Airport, Singapore on a scheduled flight to Sydney, New South Wales. When the aircraft was climbing through 2,000 ft, a loud bang was heard accompanied with aircraft yaw and vibration. The crew shut down the number one engine, declared a PAN and received approval from air traffic control for a return to Singapore. The crew then jettisoned fuel for about forty minutes. Emergency services were in attendance when the aircraft landed safely a short time later.

A subsequent examination confirmed that the engine had sustained serious damage as the result of a compressor blade release from the stage 1 high pressure compressor (HPC 1). The engine was replaced and the aircraft returned to service.

The aircraft operator is continuing to bring their RB211-524G engines to the latest modification status at engine shop visits. However, should the rate of engine failures increase significantly a review of current modification policy will be undertaken.

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General details
Date: 05 November 2010 Investigation status: Completed 
Time: 1217 UTC  
Location   (show map):near Changi Airport, Singapore Investigation type: Occurrence Investigation 
State: International Occurrence type: Engine failure or malfunction 
Release date: 16 May 2011 Occurrence class: Technical 
Report status: Final Occurrence category: Incident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: The Boeing Company 
Aircraft model: 747 
Aircraft registration: VH-OJD 
Serial number: 24481 
Type of operation: Air Transport High Capacity 
Damage to aircraft: Serious 
Departure point:Singapore
Destination:Sydney, NSW
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Last update 14 November 2018