Summary
The FAA is superseding an existing airworthiness directive (AD) for RR RB211-535E4 series turbofan engines. That AD currently requires initial and repetitive inspections of the outer combustion case for cracks and possible removal if cracks are found. This AD requires the same inspections, but requires using RR Mandatory Service Bulletin (MSB) RB.211-72-7775, Revision 3, dated April 9, 1999. This AD results from the FAA approving Revision 3 to the MSB, which adds an alternative eddy current inspection (ECI) method. We are issuing this AD to prevent an uncontained outer combustion case burst, which could result in damage to the airplane.
Directive Details
AD Number
FAA-2009-0057
Document Number
E9-23661
Type
Rule
Publication Date
October 13, 2009
Effective Date
November 17, 2009
Affected Manufacturer
Rolls-Royce plc (RR) RB211-535E4 Series Turbofan
Criticality
important
Emergency
No
Docket ID
Docket No. FAA-2009-0057
Topics
Official Documents
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