2021-15-01: Engine Turbine/Turboprop

Adoption of the Amendment \n\n\n\tAccordingly, under the authority delegated to me by the Administrator, the FAA amends 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 adding the following new airworthiness directive: \n\n2021-15-01 Rolls-Royce Deutschland Ltd & Co KG (Type Certificate previously held by Rolls-Royce plc): Amendment 39-21648; Docket No. FAA-2021-0022; Project Identifier MCAI-2020-00395-E. \n\n(a) Effective Date \n\n\n\tThis airworthiness directive (AD) is effective August 16, 2021. \n\n(b) Affected ADs \n\n\n\tNone. \n\n(c) Applicability \n\n\n\tThis AD applies to Rolls-Royce Deutschland Ltd & Co KG (RRD) (Type Certificate previously held by Rolls-Royce plc) Trent XWB-75, Trent XWB-79, Trent XWB-79B, Trent XWB-84, and Trent XWB-97 model turbofan engines. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code 7200, Engine Turbine/Turboprop. \n\n(e) Unsafe Condition \n\n\n\tThis AD was prompted by the manufacturer revising the time limits manual (TLM) to incorporate repairs to the low-pressure compressor (LPC) blades and introduce a new fan blade inspection. The FAA is issuing this AD to prevent the failure of critical rotating parts. The unsafe condition, if not addressed, could result in failure of one or more engines, loss of thrust control, and loss of 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\tWithin 120 days after the effective date of this AD, revise the Rolls-Royce (RR) Trent XWB TLM, as applicable to each engine model, and the operator's existing approved aircraft maintenance program (AMP) by incorporating the following: \n\t(1) For Trent XWB-75, Trent XWB-79, Trent XWB-79B, and Trent XWB-84 model turbofan engines, add Figure 1 to paragraph (g)(1) of this AD to the airworthiness limitations section (ALS) of RR Trent XWB TLM TRENTXWB-K0680-TIME0-01 and to the operator's existing approved AMP. \n\n((Page 36490)) \n\n(GRAPHIC) (TIFF OMITTED) TR12JY21.000 \n\n\n\t(2) For Trent XWB-97 model turbofan engines, add Figure 2 to paragraph (g)(2) of this AD to the ALS of RR Trent XWB TLM TRENTXWB- K0680-TIME0-01 and to the operator's existing approved AMP. (GRAPHIC) (TIFF OMITTED) TR12JY21.001 \n\n\n\n\n\tNote 1 to paragraph (g): Figure 1 to paragraph (g)(1) and Figure 2 to paragraph (g)(2) contain language from the original equipment manufacturer's TLM. Operators may incorporate the language referenced in Figure 1 to paragraph (g)(1) or Figure 2 to paragraph (g)(2) directly into their AMP instead of adding the respective figures into their AMP. \n\n(h) Definition \n\n\n\tFor the purpose of this AD, the operator's existing approved AMP is defined as the basis for which the operator or the owner ensures the continuing airworthiness of each operated airplane. \n\n(i) 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 Related Information. 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(j) Related Information \n\n\n\t(1) For more information about this AD, contact Scott Stevenson, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238-7132; fax: (781) 238-7199; email: Scott.M.Stevenson@faa.gov. \n\t(2) Refer to European Union Aviation Safety Agency (EASA) AD 2020-0066, dated March 23, 2020, for more information. You may examine the EASA AD in the AD docket \n\n((Page 36491)) \n\nat https://www.regulations.gov by searching for and locating Docket No. FAA-2021-0022. \n\n(k) Material Incorporated by Reference \n\n\n\tNone. \n\n\n\tIssued on July 6, 2021. Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2021-14701 Filed 7-9-21; 8:45 am) BILLING CODE 4910-13-P