2020-06-01: 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: 0 a. Removing Airworthiness Directive (AD) 2018-25-09, Amendment 39-19520 (FAA-2018-1023, December 11, 2018), and AD 2019-12-01, Amendment 39- 19656 (84 FR 28202, June 18, 2019); and 0 b. Adding the following new AD: \n\n2020-06-01 CFM International, S.A.: Amendment 39-21103; Docket No. FAA-2019-1093; Project Identifier AD-2019-00144-E. \n\n(a) Effective Date \n\n\n\tThis AD is effective April 16, 2020. \n\n(b) Affected ADs \n\n\n\tThis AD replaces AD 2018-25-09, Amendment 39-19520 (83 FR 63559, December 11, 2018), and AD 2019-12-01, Amendment 39-19656 (84 FR 28202, June 18, 2019). \n\n(c) Applicability \n\n\n\tThisAD applies to all CFM International S.A. (CFM) LEAP-1B21, - 1B23, -1B25, -1B27, -1B28, -1B28B1, -1B28B2, -1B28B3, -1B28B2C, - 1B28BBJ1, and -1B28BBJ2 model turbofan engines. \n\n(d) Subject \n\n\n\tJoint Aircraft System Component (JASC) Code, 7200 (Turbine/ Turboprop). \n\n((Page 14416)) \n\n(e) Unsafe Condition \n\n\n\t(1) This AD was prompted by multiple reports of engine in-flight shutdowns (IFSDs) and defects in the related applicable systems and one report of a melt-related defect of the high-pressure turbine (HPT) stage 2 disk material. The FAA is issuing this AD to prevent: \n\t(i) Increased fuel flow through certain fuel nozzles leading to distress of the HPT static structures and IFSD of one or more engines; \n\t(ii) Undetected subsurface anomalies formed during the manufacturing process that could lead to uncontained HPT disk failure; \n\t(iii) Icing in the pressure sensor lines, inaccurate pressure sensor readings and loss of thrust control; and \n\t(iv) Inadequate oil flow to the radial drive shaft (RDS) bearing, failure of the bearing, and IFSD of one or more engines. \n\t(2) These unsafe conditions, if not addressed, could result in IFSD or 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 15 days after the effective date of this AD, revise the Airworthiness Limitations Section (ALS) of the applicable CFM LEAP- 1B Engine Shop Manual and the operator's existing approved continuous airworthiness maintenance program by inserting the following changes: \n\t(1) Paragraph 6.B.(2) of the CFM Engine Shop Manual (ESM) Data Module LEAP-1B-05-21-03-01A-281B-C, Issue 002, dated January 9, 2020; and \n\t(2) Paragraphs 6.B.(1), 6.B.(2), and 6.C.(1) of the CFM ESM Data Module LEAP-1B-05-29-00-01A-281B-C, Issue 001, dated January 9, 2020. \n\n(h) No Alternative Procedures or Intervals \n\n\n\tAfter the revisions required by paragraph (g) of this AD have been made, no alternative inspections, procedures, or intervals may be used unless approved as an alternative method of compliance in accordance with the procedures specified in paragraph (i) of this AD. \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 certification office, send it to the attention of the person identified in paragraph (j) of this AD. You may email your request to: [email protected]. \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 districtoffice. \n\n(j) Related Information \n\n\n\tFor more information about this AD, contact Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: [email protected]. \n\n(k) 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\t(i) CFM International, S.A. (CFM) Engine Shop Manual (ESM) Data Module, LEAP-1B-05-21-03-01A-281B-C, Issue 002, dated January 9, 2020; and \n\t(ii) CFM ESM Data Module LEAP-1B-05-29-00-01A-281B-C, Issue 001, dated January 9, 2020. \n\t(3) For CFM service information identified in this AD, contact CFM International, S.A., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125, United States; phone: (877) 432- 3272; email: [email protected]. \n\t(4) You may view this service information at FAA, Engine & 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 that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: [email protected], or go to: https://www.archives.gov/federal-register/cfr/ibr-locations.html. \n\n\n\tIssued on March 5, 2020. Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service. (FR Doc. 2020-04997 Filed 3-11-20; 8:45 am) \n\tBILLING CODE 4910-13-P