Airworthiness directives › 2014-06-05
AD 2014-06-05 Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
Applicability*9
This AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 620-15 turbofan engines with low-pressure (LP) compressor module, part number (P/N) M01100AA or P/N M01100AB, installed, and Tay 650-15 and Tay 651-54 turbofan engines with LP compressor module, P/N M01300AA or P/N M01300AB, installed.
Compliance
If, before the effective date of this AD, you inspected or replaced any Tay 620-15, Tay 650-15, or Tay 651-54 turbofan engine LP compressor fan blade or rotor disk assembly using RRD Alert NMSB TAY-72-A1442, Revision 5, dated May 31, 2013, or earlier, you have satisfied the requirements of paragraphs (e)(1) through (e)(3) of this AD.
Required actions
For the purposes of this AD for Tay 620-15 engines: (1) A mid-life shop visit is an engine shop visit accomplished before accumulating 12,000 engine flight cycles since new (FCSN) or flight cycles (FC) since last engine mid-life shop visit; (2) A calendar-life shop visit is an engine shop visit accomplished within 10 years since new or since the last engine calendar-life shop visit; and (3) An overhaul shop visit is an engine shop visit accomplished before accumulating 22,000 engine FCSN or FC since the last engine overhaul shop visit.
Unsafe condition
Comply with this AD within the compliance times specified, unless already done. (1) For Tay 650-15 and Tay 651-54 engine LP compressor fan blade ultrasonic inspection (UI): (i) After the effective date of this AD, whenever LP compressor fan blades are removed from an engine, before re-installation on a different engine, inspect the LP compressor fan blades and accomplish a UI of the LP compressor fan blades in accordance with Instruction I of paragraph 3 of RRD Alert Non-Modification Service Bulletin (NMSB) TAY-72-A1442, Revision 6, dated August 26, 2013. (ii) After the effective date of this AD, during each engine shop visit, before return to service of the engine, inspect the LP compressor fan blades and accomplish a UI of the LP compressor fan blades in accordance with Instruction II of paragraph 3 of RRD Alert NMSB TAY-72-A1442, Revision 6, dated August 26, 2013. (2) For Tay 620-15 engine LP compressor fan blade UI, after the effective date of this AD, before return to service of an engine after every mid-life, or every calendar-life, or every overhaul shop visit, inspect the LP compressor fan blades and accomplish a UI of the LP compressor fan blades in accordance with Instruction II of paragraph 3 of RRD Alert NMSB TAY-72-A1442, Revision 6, dated August 26, 2013. (3) For Tay 620-15, Tay 650-15, and Tay 651-54 engine LP compressor fan blade and rotor disk replacement, if during any inspection required by paragraph (e)(1) or (e)(2) of this AD, any LP compressor fan blade is found cracked, before next flight or return to service of the engine, replace the complete set of the LP compressor fan blades and the LP compressor rotor disk.
Affected ADs
This AD supersedes AD 2007-03-02, Amendment 39-14913 (72 FR 3936, January 29, 2007).
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