2020-06-16: Turbine Engine Compressor Section

Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends part 39 of the Federal Aviation Regulations (14 CFR part 39) as follows: \n\nPART 39--AIRWORTHINESS DIRECTIVES \n\n0 1. The authority citation for part 39 continues to read as follows: \n\n\n\tAuthority: 49 U.S.C. 106(g), 40113, 44701. \n\n\n\nSec. 39.13 (Amended) \n\n0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2017-03-02, Amendment 39-18793 (82 FR 10701, February 15, 2017), and adding the following new AD: \n\n2020-06-16 Rolls-Royce, Deutschland Ltd. & Co. KG (formerly Rolls- Royce plc): Amendment 39-19885; Docket No. FAA-2018-0538; Product Identifier 2012-NE-47-AD. \n\n(a) Effective Date \n\n\n\tThis AD is effective May 5, 2020. \n\n((Page 17741)) \n\n(b) Affected ADs \n\n\n\tThis AD replaces AD 2017-03-02, Amendment 39-18793 (82 FR 10701, February 15, 2017). \n\n(c) Applicability \n\n\n\tThis AD applies to Rolls-Royce Deutschland Ltd. & Co. KG (formerly Rolls-Royce plc) RB211 Trent 768-60, 772-60, and 772B-60 turbofan engines, with low-pressure (LP) compressor blade, part number (P/N) FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, FW23744, KH23403, or KH23404, installed. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by LP compressor blade partial airfoil release events. While released sections were contained in each case, projection of secondary debris and effects could present a potential hazard. The FAA is issuing this AD to prevent LP compressor blade airfoil separation. The unsafe condition, if not addressed, could result in damage to the engine and damage to the airplane. \n\n(f) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(g) Required Actions \n\n\n\t(1) Within the compliance time specified in Figure 1 to paragraph (g)(1) of this AD and thereafter, at intervals not to exceed 1,200 flight cycles (FCs) or Standard Duty Cycles (SDCs) for Non-Standard Operations (NSO), as applicable, since the last ultrasonic inspection (UI), perform a UI of each affected LP compressor blade in accordance with the Accomplishment Instructions, paragraph 3, of Rolls-Royce plc (RR) Alert Non-Modification Service Bulletin (NMSB) RB.211-72-AH465, Revision 6, dated November 29, 2019. \n\n\n\tNote 1 to paragraph (g)(1): Paragraph 1.D of RR Alert NMSB RB.211-72-AH465, Revision 6, dated November 29, 2019, describes how to determine the applicable SDCs. The Time Limits Manual (TLM), 05- 00-01, defines NSO. \n\n(GRAPHIC) (TIFF OMITTED) TR31MR20.002 \n\n\n\t(2) If, during any inspection required by paragraph (g)(1) of this AD, a LP compressor blade is rejected by the UI, as defined in Accomplishment Instructions, paragraph 3, of RR Alert NMSB RB.211- 72-AH465, Revision 6, dated November 29, 2019, before further flight, or before returning theLP compressor blade to service, whichever occurs first, remove the affected LP compressor blade from service and replace with a part eligible for installation. \n\n(h) Installation Prohibition \n\n\n\tAfter the effective date of this AD, do not install an affected LP compressor blade on an engine unless the LP compressor blade meets the conditions specified in paragraphs (h)(1) or (2) of this AD, as applicable. \n\t(1) The affected part has not exceeded 1,200 FC or SDCs (for NSO) since new, or since an inspection performed in accordance with either RR Alert NMSB RB.211-72-AH465, Revision 6, dated, November 29, 2019, or with any of the service information referenced in paragraph (j)(1) and (2) of this AD. \n\t(2) Prior to installation, the affected part has passed an ultrasonic inspection in accordance with paragraph (g)(1) of this AD. \n\n(i) No Reporting Requirement \n\n\n\tThe reporting requirements in the Accomplishment Instructions, paragraph 3 of RR Alert NMSB RB.211-72-AH465, Revision 6, dated November 29, 2019, are not required by this AD. \n\n(j) Credit for Previous Actions \n\n\n\tYou may take credit for LP compressor blade UIs required by paragraph (g)(1) of this AD, if you performed the UI before the effective date of this AD using: \n\t(1) For initial inspections: RR NMSB RB.211-72-G702, dated May 23, 2011; RR NMSB RB.211-72-G872, Revision 2, dated March 8, 2013, or earlier versions; RR NMSB RB.211-72-H311, dated March 8, 2013; RR NMSB RB.211-72-AH465, Revision 5, dated July 26, 2018, or earlier versions; RR Engine Manual E-Trent-1RR, Task 72-31-11-200-806; or Airbus A330 Aircraft Maintenance Manual (AMM) Task 72-31-41-270-801, or AMM Task 72-31-41-270-802. \n\t(2) For repetitive inspections: The instructions referenced in the mandatory inspection paragraph of the applicable engine TLM, provided the compliance times of this AD are not exceeded. \n\n(k) Alternative Methods of Compliance (AMOCs) \n\n\n\t(1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ECO Branch, send it to the attention of the person identified in paragraph (l)(1) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. \n\t(2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. \n\n(l) Related Information \n\n\n\t(1) For more information about this AD, contact Stephen Elwin, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781-238-7236; fax: 781-238-7199; email: Stephen.L.Elwin@faa.gov. \n\t(2) Refer to European Union Aviation Safety Agency (EASA) AD 2018-0188R1, dated September 5, 2018, for more information. You may examine the EASA AD in the AD docket on the internet at https://www.regulations.gov by searching for and locating it in Docket No. FAA-2018-0538. \n\n(m) Material Incorporated by Reference \n\n\n\t(1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. \n\t(2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. \n\n((Page 17742)) \n\n\n\t(i) Rolls-Royce plc (RR) Alert Non-Modification Service Bulletin RB.211-72-AH465, Revision 6, dated November 29, 2019. \n\t(ii) (Reserved) \n\t(3) For RR service information identified in this AD, contact Rolls-Royce Deutschland Ltd & Co KG, Eschenweg 11, 15827 Blankenfelde-Mahlow, Germany; phone: +49 (0) 33 708 6 0; email: https://www.rolls-royce.com/contact-us.aspx. \n\t(4) You may view this service information at FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA, 01803. For information on the availability of this material at the FAA, call 781-238-7759. \n\t(5) You may view this service information at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: fedreg.legal@nara.gov, or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. \n\n\n\tIssued on March 26, 2020. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2020-06640 Filed 3-30-20; 8:45 am) \n\tBILLING CODE 4910-13-P