Airworthiness directives › 2003-18-09
AD 2003-18-09 Airworthiness Directives; Rolls-Royce plc Trent 768-60, Trent 772-60, and Trent 772B-60 Turbofan Engines
Applicability*9
This AD applies to Rolls-Royce plc (RR) Trent 768-60, Trent 772-60, and Trent 772B-60 turbofan engines. These engines are installed on, but not limited to Airbus A330 series airplanes.
Compliance
You are responsible for having the actions required by this AD performed within the compliance cycles specified unless the actions have already been done. (f) Remove HP compressor rotor shafts, part numbers (P/Ns) FK24031 (pre RR Service Bulletin (SB) RB.211-72-B172), FK22745 (SB RB.211-72-B172), FK23313 (SB RB.211-72-B261 and pre SB RB.211-72-B653), FK25502 (SB RB.211-72-B653), FK26185 (SB RB.211-72-B921), FK32129 (SB RB.211-72-C746), FW20195 (SB RB.211-72-D533), FW20196 (SB RB.211-72-D533), FW20197 (SB RB.211-72-D533), and FW20638 (SB RB.211-72-D533) from service at or before accumulating 4,200 cycles-since-new (CSN). (g) After the effective date of this AD, do not install any HP compressor rotor shaft, P/Ns FK24031 (pre RR SB RB.211-72-B172), FK22745 (SB RB.211-72-B172), FK23313 (SB RB.211-72-B261 and pre SB RB.211-72-B653), FK25502 (SB RB.211-72-B653), FK26185 (SB RB.211-72-B921), FK32129 (SB RB.211-72-C746), FW20195 (SB RB.211-72-D533), FW20196 (SB RB.211-72-D533), FW20197 (SB RB.211-72-D533), or FW20638 (SB RB.211-72-D533), that exceeds 4,200 CSN. Alternative Methods of
Unsafe condition
This AD is prompted by reports of high pressure (HP) compressor drums with small cracks in blade loading slots found at overhaul inspection. We are issuing this AD to prevent possible uncontained HP compressor drum failure, which could result in damage to the airplane.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1