Recommendation R20000008

Recommendation issued to: Civil Aviation Authority (UK)

Recommendation details
Output No: R20000008
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 the United Kingdom Civil Aviation Authority review Rolls Royce RB211-524D4 engine cold stream nozzle inspection criteria to minimise the possibility of failure during operation.

Initial response
Date issued: 03 March 2000
Response from: Civil Aviation Authority (UK)
Action status: Closed - Accepted
Response text:

The Authority accepts this Recommendation.

As a result of this event, the Authority has required mandatory inspection of affected cold nozzles. This has been promulgated by CAA Airworthiness Directive (AD) and Rolls-Royce Non-Modification Service Bulletin (NMSB) 78-C955. This AD requires a fleet inspection of all affected RB211-524D4 cold stream nozzles within 100 cycles or 400 hours (whichever limit is reached first). The results of these inspections will be used to determine the need for any further action.

Last update 05 April 2012