2017-03-02: LP compressor blade

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) 2014-16-10, Amendment 39-17934 (79 FR 48961, August 19, 2014), and adding the following new AD: \n\n2017-03-02 Rolls-Royce plc: Amendment 39-18793; Docket No. FAA-2012- 1327; Directorate Identifier 2012-NE-47-AD. \n\n(a) Effective Date \n\n\n\tThis AD is effective March 22, 2017. \n\n(b) Affected ADs \n\n\n\tThis AD supersedes AD 2014-16-10, Amendment 39-17934 (79 FR 48961, August 19, 2014). \n\n(c) Applicability \n\n\n\tThis AD applies to Rolls-Royce plc (RR) 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) Unsafe Condition \n\n\n\tThis AD was prompted by LP compressor blade partial airfoil release events. We are issuing this AD to prevent LP compressor blade airfoil separations, damage to the engine, and damage to the airplane. \n\n(e) Compliance \n\n\n\tComply with this AD within the compliance times specified, unless already done. \n\n(1) Ultrasonic Inspection (UI) of LP Compressor Blade \n\n\n\t(i) After the effective date of this AD, for LP compressor blades that have accumulated less than 1,800 cycles since new (CSN) or cycles since last inspection (CSLI), perform a UI of each LP compressor blade before the blade exceeds 2,400 CSN or CSLI. Repeat the UI of the blade before exceeding 2,400 CSLI. \n\t(ii) For any LP compressor blade that exceeds 1,800 CSN on the effective date of this AD, inspect the blade before exceeding 600 flight cycles after the effective date of this AD or before exceeding 3,600 CSN, whichever occurs first. Thereafter, perform the repetitive inspections before exceeding 2,400 CSLI. \n\t(iii) For any LP compressor blade that exceeds 2,200 CSLI on September 23, 2014 (the effective date of AD 2014-16-10), inspect the blade before exceeding 3,000 CSLI or before further flight, whichever occurs later. Thereafter, perform the repetitive inspections before exceeding 2,400 CSLI. \n\t(iv) Use paragraph 3, excluding subparagraphs 3.C.(2)(b), 3.D.(2), and 3.G, of RR Alert Non-Modification Service Bulletin (NMSB) RB.211-72-AH465, Revision 2, dated May 11, 2016, to perform the inspections required by this AD. \n\n(2) Use of Replacement Blades \n\n\n\t(i) After the effective date of this AD, LP compressor blade, P/ N FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, FW23744, KH23403, or KH23404, that has accumulated at least 2,400 CSN or CSLI is eligible for installation if the blade has passed theUI required by this AD. \n\t(ii) Reserved. \n\n(f) Credit for Previous Actions \n\n\n\tYou may take credit for the UI required by paragraph (e) of this AD, if you performed the UI before the effective date of this AD using RR Alert NMSB RB.211-72-AH465, Revision 1, dated July 10, 2015, or the initial issue, dated July 15, 2013; or RR NMSB No. RB.211-72-G702, dated May 23, 2011; or RR NMSB No. RB.211-72-G872, Revision 2, dated March 8, 2013, or earlier revisions; or RR NMSB No. RB.211-72-H311, dated March 8, 2013; or the Engine Manual E- Trent-1RR, Task 72-31-11-200-806. \n\n(g) Alternative Methods of Compliance (AMOCs) \n\n\n\tThe Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. \n\n(h) Related Information \n\n\n\t(1) For more information about this AD, contact Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7754; fax: 781-238-7199; email: robert.green@faa.gov. \n\t(2) Refer to MCAI European Aviation Safety Agency, (EASA) AD 2016-0141, dated July 18, 2016 (corrected July 20, 2016), for more information. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2012-1327. \n\n(i) 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 \n\n((Page 10703)) \n\nparagraph 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\t(i) Rolls-Royce plc Alert Non-Modification Service Bulletin RB.211-72-AH465, Revision 2, dated May 11, 2016. \n\t(ii) Reserved. \n\t(3) For Rolls-Royce plc service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, DE24 8BJ; phone: 011-44-1332- 242424; fax: 011-44- 1332-245418, or email: http://www.rolls-royce.com/contact/civil_team.jsp. \n\t(4) You may view this service information at FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. \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, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.