2013-26-01: Oil dynamic seal assembly

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by adding the following new airworthiness directive (AD): 2013-26-01 CFM International S.A.: Amendment 39-17710; Docket No. FAA-2013-0407; Directorate Identifier 2012-NE-22-AD. (a) Effective Date This AD is effective February 3, 2014. (b) Affected ADs None. (c) Applicability This AD applies to CFM International S.A. CFM56-3 series and CFM56-7B series turbofan engines equipped with the following accessory gearbox (AGB) part numbers (P/Ns): (1) For CFM56-3 engines: 335-300-103-0, 335-300-105-0, 335-300- 106-0, 335-300-107-0, 335-300-108-0, 335-300-109-0, or 335-300-110- 0. (2)For CFM56-7B engines (except CFM56-7B27A, CFM56-7B27A/3, and CFM56-7B27AE engines): 340-046-503-0, 340-046-504-0, or 340-046-505- 0. (3) For CFM56-7B27A, CFM56-7B27A/3, and CFM56-7B27AE engines: 340-188-601-0 or 340-188-603-0. (d) Unsafe Condition This AD was prompted by 42 events of total loss of engine oil while in flight. We are issuing this AD to prevent loss of engine oil while in flight, which could result in engine failure, loss of thrust control, and damage to the airplane. (e) Compliance Unless already done, do the actions in paragraphs (f) or (g) of this AD. (f) Inspection of the AGB Handcranking Pad Cover (1) Perform an Independent Inspection to verify re-installation of the AGB handcranking pad cover after any maintenance that involves the removal and re-installation of the AGB handcranking cover, or (2) Insert an Independent Inspection as a required inspection item in the approved continuous airworthiness maintenance program for the aircraft. (g) Optional Terminating Action As an optional terminating action to the inspection requirement of paragraph (f) of this AD, install an AGB that is not listed in paragraph (c) of this AD that incorporates the oil dynamic seal assembly. (h) Definition For the purpose of this AD, an Independent Inspection means a second inspection by a qualified individual who was not involved in the original re-installation of the AGB handcranking pad cover following maintenance to confirm that the cover is installed correctly. (i) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (j) Related Information (1) For more information about this AD, contact Antonio Cancelliere, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, Massachusetts, 01803;phone: 781-238-7751; fax: 781-238- 7199; email: antonio.cancelliere@faa.gov. (2) CFM International S.A. Service Bulletin (SB) No. CFM56-7B S/ B 72-0564, Revision 3, dated May 25, 2011, and SB No. CFM56-7B S/B 27-0879, Revision 1, dated April 12, 2012, which are not incorporated by reference in this AD, provide guidance on obtaining an AGB that incorporates an oil dynamic seal assembly. The CFM56 engine manuals, which are also not incorporated by reference in this AD, include instructions on assembling and disassembling the AGB. (3) For service information identified in this AD, contact CFM International Inc., [[Page 79298]] Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877-432-3272; fax: 877-432-3329; email: geae.aoc@ge.com. (4) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781-238-7125. (k) Material Incorporated by Reference None.