Airworthiness directives › 2015-02-20
AD 2015-02-20 Airworthiness Directives; Rolls-Royce plc Turbofan Engines
Applicability*9
This AD applies to all Rolls-Royce plc (RR) RB211-Trent 553-61, 553A2-61, 556-61, 556A2-61, 556B-61, 556B2-61, 560-61, 560A2-61, 768-60, 772-60, 772B-60, 875-17, 877-17, 884-17, 884B-17, 892-17, 892B-17, 895-17, 970-84, 970B-84, 972-84, 972B- 84, 977-84, 977B-84, and 980-84 turbofan engines.
Compliance
(1) RB211-Trent 700 Engines (i) If you borescope inspected an RB211-Trent 700 engine, before the effective date of this AD, using RR Alert NMSB No. RB.211-72-AG270, Revision 1, dated December 14, 2009; or Revision 2, dated December 21, 2010; or Revision 3, dated February 25, 2011, you have met the requirements of paragraph (e)(1)(i) of this AD. (ii) If you eddy current inspected an RB211-Trent 700 engine, before the effective date of this AD, using RR Alert NMSB No. RB.211-72-AG085, Revision 1, dated September 27, 2010, you met the ECI requirement of paragraph (e)(1)(iii) of this AD. However, you are still required to perform the repetitive inspections required by paragraphs (e)(1)(ii) and (e)(1)(iii) of this AD. (2) RB211-Trent 800 Engines (i) If you borescope inspected an RB211-Trent 800 engine, before the effective date of this AD, using RR Alert NMSB No. RB.211-72-AG264, Revision 3, dated December 21, 2010; or Revision 4, dated February 25, 2011, you met the requirements of paragraph (e)(2)(i) of this AD. (ii) If you eddy current inspected an RB211-Trent 800 engine, before the effective date of this AD, using RR Alert NMSB No. RB.211-72-AG085, Revision 1, dated September 27, 2010, you met the ECI requirement of paragraph (e)(2)(iii) of this AD. However, you are still required to perform the repetitive inspections required by paragraphs (e)(2)(ii) and (e)(2)(iii) of this AD. (3) RB211-Trent 500 Engines (i) If you borescope inspected an RB211-Trent 500 engine, before the effective date of this AD, using RR Alert NMSB RB.211-72-AH058, dated December 13, 2012; or RR NMSB No. RB.211-72-G448, Revision 2, dated December 23, 2010; or Revision 3, dated July 7, 2011, you met the requirement of paragraph (e)(3)(i) of this AD. (ii) If you eddy current inspected an RB211-Trent 500 engine, before the effective date of this AD, using RR NMSB No. RB.211-72-G448, Revision 2, dated December 23, 2010; or Revision 3, dated July 7, 2011, you met the ECI requirement of paragraph (e)(3)(iii) of this AD. However, you are still required to perform the repetitive inspections required by paragraphs (e)(3)(ii) and (e)(3)(iii) of this AD. (4) RB211-Trent 900 engines (i) If you borescope inspected an RB211-Trent 900 engine, before the effective date of this AD, using RR Alert NMSB RB.211-72-AH059, dated December 11, 2012; or RR NMSB No. RB.211-72-G448, Revision 2, dated December 23, 2010; or Revision 3, dated July 7, 2011, you met the requirements of paragraph (e)(4)(i) of this AD. (ii) If you eddy current inspected an RB211-Trent 900 engine, before the effective date of this AD, using RR NMSB No. RB.211-72-G448, Revision 2, dated December 23, 2010; or Revision 3, dated July 7, 2011, you met the ECI requirement of paragraph (e)(4)(iii) of this AD. However, you are still required to perform the repetitive inspections required by paragraphs (e)(4)(ii) and (e)(4)(iii) of this AD.
Required actions
For the purpose of this AD, a shop visit is defined as the introduction of an engine into the shop and disassembly sufficient to expose the IPC module rear face.
Unsafe condition
Comply with this AD within the compliance times specified, unless already done. (1) RB211-Trent 700 Engines—Rear Balance Land Inspections (i) Within 625 cycles-in-service (CIS) after June 29, 2012, or before the next flight after the effective date of this AD, whichever occurs later, borescope inspect the IPC rotor shaft rear balance land. Use RR Alert Non-Modification Service Bulletin (NMSB) No. RB.211-72-AG270, Revision 4, dated March 21, 2011, paragraphs 3.A.(2)(a) through 3.A.(2)(c) and 3.A.(3)(a) through 3.A.(3)(c) for in-shop procedures, or paragraphs 3.B.(2)(a) through 3.B.(2)(c) and 3.B.(4)(a) through 3.B.(4)(c), for on-wing procedures, to do the inspection. (ii) Thereafter, repeat the inspection within every 625 cycles-since-last inspection (CSLI). You may count CSLI from the last borescope inspection or the last eddy current inspection (ECI), whichever occurred later. (iii) At each shop visit after the effective date of this AD, perform an ECI of the IPC rotor shaft rear balance land. Use RR Alert NMSB No. RB.211-72-AG085, Revision 2, dated July 7, 2011, paragraphs 3.A. through 3.B., to do the inspection. (iv) To meet the requirement of paragraph (e)(1)(i) of this AD, instead of a borescope inspection, you may perform an ECI using paragraph (e)(1)(iii) of this AD. (2) RB211-Trent 800 Engines—Rear Balance Land Inspections (i) Within 475 CIS after June 29, 2012, or before the next flight after the effective date of this AD, whichever occurs later, borescope inspect the IPC rotor shaft rear balance land. Use RR Alert NMSB No. RB.211-72-AG264, Revision 5, dated March 21, 2011, paragraphs 3.A.(2)(a) through 3.A.(2)(c) and 3.A.(3)(a) through 3.A.(3)(c), for in-shop procedures, or paragraphs 3.B.(2)(a) through 3.B.(2)(c) and 3.B.(4)(a) through 3.B.(4)(c), for on-wing procedures, to do the inspection. (ii) Thereafter, repeat the inspection within every 475 CSLI. You may count CSLI from the last borescope inspection or the last ECI, whichever occurred later. (iii) At each shop visit after the effective date of this AD, perform an ECI of the IPC rotor shaft rear balance land. Use RR Alert NMSB No. RB.211-72-AG085, Revision 2, dated July 7, 2011, paragraphs 3.A. through 3.B., to do the inspection. (iv) To meet the requirement of paragraph (e)(2)(i) of this AD, instead of a borescope inspection, you may perform an ECI using paragraph (e)(2)(iii) of this AD. (3) RB211-Trent 500 Engines—Rear Balance Land Inspections (i) Within 340 CIS after October 8, 2013, or before the next flight after the effective date of this AD, whichever occurs later, borescope inspect the IPC rotor shaft rear balance land. Use RR Alert NMSB No. RB.211-72-AH058, Revision 1, dated July 7, 2014, paragraphs 3.A.(2)(a) through 3.A.(2)(c), 3.A.(3)(a) through 3.A.(3)(d), and 3.A.(5)(a) through 3.A.(5)(c), for on-wing procedures, to do the inspection. (ii) Thereafter, repeat the inspection within every 340 CSLI. You may count CSLI from the last borescope inspection or the last ECI, whichever occurred later. (iii) At each shop visit after the effective date of this AD, perform an ECI of the IPC rotor shaft rear balance land. Use RR NMSB No. RB.211-72-G448, Revision 4, dated August 21, 2014, paragraphs 3.D.(4) through 3.D.(5), 3.D.(6)(f) through 3.D.(7)(w), 3.D.(8)(f) through 3.D.(8)(w), and 3.D.(11) to do the inspection. (iv) To meet the requirement of paragraph (e)(3)(i) of this AD, instead of a borescope inspection, you may perform an ECI using paragraph (e)(3)(iii) of this AD. (4) RB211-Trent 900 Engines—Rear Balance Land Inspections (i) Within 280 flight cycles after October 8, 2013, or before the next flight after the effective date of this AD, whichever occurs later, borescope inspect the IPC rotor shaft rear balance land. Use RR Alert NMSB No. RB.211-72-AH059, dated December 11, 2012, paragraphs 3.A.(2)(a) through 3.A.(2)(c), 3.A.(3)(a) through 3.A.(3)(d), and 3.A.(5)(a) through 3.A.(5)(c) for on-wing procedures, to do the inspection. (ii) Thereafter, repea
Affected ADs
This AD supersedes AD 2013-15-10, Amendment 39-17526 (78 FR 54149, September 3, 2013).
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