|preamble attached >>>||
ADs updated daily at www.Tdata.com
CFM INTERNATIONAL S.A.:
Amendment 39-19531; Docket No. FAA-2018-1039; Product Identifier 2018-NE-14-AD.
(a) EFFECTIVE DATE This AD is effective January 10, 2019. (b) AFFECTED ADS This AD replaces AD 2018-18-01, Amendment 39-19380 (83 FR 49272, October 1, 2018). (c) APPLICABILITY This AD applies to CFM International S.A.(CFM) CFM56-7B20, CFM56-7B22, CFM56-7B22/B1, CFM56-7B24, CFM56-7B24/B1, CFM56-7B26, CFM56-7B26/B2, CFM56-7B27, CFM56-7B27A, CFM56-7B26/B1, CFM56-7B27/B1, CFM56-7B27/B3, CFM56-7B20/2, CFM56-7B22/2, CFM56-7B24/2, CFM56-7B26/2, CFM56-7B27/2, CFM56-7B20/3, CFM56-7B22/3, CFM56-7B22/3B1, CFM56-7B24/3, CFM56-7B24/ 3B1, CFM56-7B26/3, CFM56-7B26/3B1, CFM56-7B26/3B2, CFM56-7B27/3, CFM56 -7B27/3B1, CFM56-7B27/3B3, CFM56-7B27A/3, CFM56-7B26/3F, CFM56-7B26/ 3B2F, CFM56-7B27/3F, CFM56-7B27/3B1F, CFM56-7B20E, CFM56-7B22E, CFM56- 7B22E/B1, CFM56-7B24E, CFM56-7B24E/B1, CFM56-7B26E, CFM56-7B26E/B1, CFM56-7B26E/B2, CFM56-7B27AE, CFM56-7B27E, CFM56-7B27E/B1, CFM56-7B27E /B3, CFM56-7B26E/F, CFM56-7B26E/B2F, CFM56-7B27E/F and CFM56-7B27E/B1F turbofan engine models. (d) SUBJECT Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Com- pressor Section. (e) UNSAFE CONDITION This AD was prompted by further analysis by the manufacturer that in- dicated a need to reduce the initial fan blade inspection requirement based on its ongoing root cause investigation of an April 2018 engine failure that resulted in one fatality. We are issuing this AD to prevent failure of the fan blade. The unsafe condition, if not addressed, could result in failure of the fan blade, the engine inlet cowl disintegrating and debris penetrating the fuselage, causing a loss of pressurization, and prompting an emergency descent. (f) COMPLIANCE Comply with this AD within the compliance times specified, unless already done. (g) REQUIRED ACTIONS (1) Perform an ultrasonic inspection (USI) or eddy current inspection (ECI) of the concave and convex sides of the fan blade dovetail as follows: (i) For a fan blade with less than or equal to 16,000 cycles since new (CSN), inspect prior to accumulating 17,000 CSN. (ii) For a fan blade with more than 16,000 and less than 20,000 CSN, in- spect within 1,000 cycles but no later than 20,000 CSN. (iii) For a fan blade with 20,000 or more CSN, inspect before further flight. (iv) Thereafter, repeat this inspection no later than 1,600 cycles since the last inspection, or within 450 cycles after October 16, 2018, the effective date of AD 2018-18-01, whichever occurs later. (v) Use the Accomplishment Instructions, paragraphs 3.A.(3)(a) through (i) of CFM International Service Bulletin (SB) CFM56-7B S/B 72-1033, Revision 3, dated November 6, 2018, to perform a USI or use the in- structions in subtask 72-21-01-220-091, of task 72-21-01-200-001, from CFM CFM56-7B Engine Shop Manual, Revision 57, dated January 15, 2018, to perform an ECI. (2) If any unserviceable indication, as specified in the applicable ser- vice information in paragraph (g)(1)(v) of this AD, is found during the inspections required by paragraph (g) of this AD, replace the fan blade before further flight with a part eligible for installation. (h) INSTALLATION PROHIBITION Do not install any replacement fan blade unless it meets one of the following criteria: (1) The replacement fan blade has fewer than 17,000 CSN, or; (2) The replacement fan blade has been inspected, per paragraph (g)(1) of this AD, within the last 1,600 cycles before installation. (i) DEFINITION For the purpose of this AD, a "replacement fan blade" is a fan blade that is being installed into an engine from which it was not previously removed. Removing and reinstalling a fan blade for the purpose of relubrication is not subject to the Installation Prohibition of this AD. (j) CREDIT FOR PREVIOUS ACTIONS You may take credit for the actions that are required by paragraph (g) of this AD, if you performed those actions before the effective date of this AD using CFM SB CFM56-7B S/B 72-1019, dated March 24, 2017; CFM SB CFM56-7B S/B 72-1019, Revision 1, dated June 13, 2017; CFM SB CFM56-7B S/B 72-1024, dated July 26, 2017; CFM SB CFM56-7B S/B 72-1033 dated April 20, 2018; CFM SB CFM56-7B S/B 72-1033, Revision 1, dated May 9, 2018; or CFM International SB CFM56-7B S/B 72-1033, Revision 2, dated July 27, 2018 or performed an ECI using the instructions in task 72-21-01-200-001, subtask 72-21-01-220-091 of CFM56-7B Engine Shop Manual, earlier than Revision 57, dated January 15, 2018. (k) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS) (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 (l) of this AD. You may email your request to: ANE-AD-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal in- spector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (3) For service information that contains steps that are labeled as Required for Compliance (RC), the provisions of paragraphs (k)(3)(i) and (k)(3)(ii) of this AD apply. (i) The steps labeled as RC, including substeps under an RC step and any figures identified in an RC step, must be done to comply with the AD. An AMOC is required for any deviations to RC steps, including substeps and identified figures. (ii) Steps not labeled as RC may be deviated from using accepted methods in accordance with the operator's maintenance or inspection program without obtaining approval of an AMOC, provided the RC steps, including substeps and identified figures, can still be done as specified, and the airplane can be put back in an airworthy condition. (4) AMOCs approved previously for AD 2018-10-11 (83 FR 22836, May 17, 2018) and AD 2018-18-01 (83 FR 49272, October 1, 2018) are approved as AMOCs for the corresponding provisions of this AD. (l) RELATED INFORMATION For more information about this AD, contact Christopher McGuire, Aero- space Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781-238-7120; fax: 781-238-7199; email: chris.mcguire@ faa.gov. (m) MATERIAL INCORPORATED BY REFERENCE (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. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on January 10, 2019. (i) CFM International (CFM) Service Bulletin CFM56-7B S/B 72-1033 Revision 3, dated November 6, 2018. (ii) [Reserved] (4) The following service information was approved for IBR on May 14, 2018 (83 FR 19176, May 2, 2018). (i) Subtask 72-21-01-220-091, of Task 72-21-01-200-001, from the CFM CFM56 -7B Engine Shop Manual, Revision 57, dated January 15, 2018. (ii) [Reserved] (5) For CFM service information identified in this AD, contact CFM Inter- national Inc, Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432-3329; email: email@example.com. (6) You may view this service information at the 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. (7) 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, call 202 -741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr- locations.html. Issued in Burlington, Massachusetts, on December 18, 2018. Robert J Ganley Manager, Engine & Propeller Standards Branch, Aircraft Certification Ser- vice. FOR FURTHER INFORMATION CONTACT: Christopher McGuire, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA, 01803; phone: 781- 238-7120; fax: 781-238-7199; email: firstname.lastname@example.org.
DEPARTMENT OF TRANSPORTATION
We estimate the following costs to
complete any necessary
Authority for This Rulemaking