AD 2003-22-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| engine | Rolls-Royce | plc Trent 768-60 and Trent 772-60 | Airworthiness Directives; Rolls-Royce plc Trent 768-60 and Trent 772-60 Turbofan Engines |
Unsafe Condition
A low pressure (LP) stage 4 blade failure at the blade shank, resulting in severe radial distortion of the rear flange of the LP turbine case and failure of a number of attaching bolts, leading to flange separation and release of high energy debris.
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Required Actions
Rework the LP turbine nozzle vane case (part numbers FK19488 and FK22687), the LP turbine bearing support exhaust case (part number FK22791), and the support arm bracket assembly (part number FK29121) using the procedures specified in RR Mandatory Service Bulletin No. RB.211-72-C224, Revision 4, dated April 12, 2002.
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Compliance Time
Within 15 months after the effective date of this AD.
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Affected Aircraft
Rolls-Royce plc RB211 Trent 768-60 turbofan engines with serial numbers before SN 41056 and RB211 Trent 772-60 turbofan engines with serial numbers before SN 41056, installed on, but not limited to, Airbus A330 series airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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