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Recommendation issued to: Rolls Royce, Ltd.

Recommendation details
Output No: R20000004
Date issued: 07 January 2000
Safety action status:
Background: Why this Recommendation was developed

Output text

The Australian Transport Safety Bureau (formerly the Bureau of Air Safety Investigation) recommends that Rolls Royce Commercial Aero Engine Limited notify all operators using Rolls Royce RB211-524D4 or similar engines of the possibility of failure of the cold stream nozzle during operation.

Initial response
Date issued: 14 February 2000
Response from: Rolls Royce, Ltd.
Action status: Closed - Accepted
Response text:

1) A world wide communication was sent to all RB211-524D4 operators, Boeing and Rolls-Royce resident service representatives on 06 January 2000 alerting them to this incident, subsequent findings by the affected operator, the position of the cracks and the proposed method of inspection.

2) A mandatory Non Modification Service Bulletin (NMSB), RB211-78-C955, has been issued detailing the inspection of the affected area, the actions required should cracks be found and the availability of a method of repair.

The need for future inspections will be decided when the results of further analysis and laboratory tests become available and should subsequent inspection be necessary a further issue of the NSMB will be made.

 
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Last update 05 April 2012