2013-14-06: Hydro-mechanical unit (HMU) fuel control

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): 2013-14-06 CFM International, S. A.: Amendment 39-17511; Docket No. FAA-2012-1114; Directorate Identifier 2012-NE-21-AD. (a) Effective Date This AD is effective September 3, 2013. (b) Affected ADs None. (c) Applicability This AD applies to CFM International S.A. (CFM) model CFM56-5 and CFM56-5B series turbofan engines with any of the hydro- mechanical unit (HMU) fuel control part numbers (P/Ns) in paragraphs (c)(1) and (c)(2) of this AD, installed: (1) CFM56-5: CFM P/Ns 1348M79P02; 1348M79P03; 1348M79P04; 1348M79P06; 1348M79P07; 1348M79P08; 1348M79P09; 1348M79P10; 1348M79P11; 1348M79P12; 1348M79P13; and 1348M79P14. (2) CFM56-5B: CFM P/Ns: 1348M79P08; 1348M79P09; 1348M79P10; 1348M79P11; 1348M79P12; 1348M79P13; and 1348M79P14. (d) Unsafe Condition This AD was prompted by corrosion of the delta-P valve in the HMU fuel control caused by exposure to type TS-1 fuel. We are issuing this AD to prevent seizure of the HMU, leading to failure of one or more engines, and damage to the airplane. (e) Compliance Unless already done, do the following: (f) Record Type TS-1 Fuel Usage (1) From the effective date of this AD, record all TS-1 fuel usage. (2) If the HMU never uses TS-1 fuel, no further action is required. (g) Initial Inspection If the HMU has operated on TS-1 fuel, inspect the HMU for corrosion as follows: (1) For an HMU that has operated for fewer than 6,000 hours since new (HSN) or hours since last overhaul, inspect the HMU before 10,000 HSN or hours since last overhaul, whichever comes later. (2) For an HMU that has operated for 6,000 or more HSN or hours since last overhaul, inspect the HMU within 24 months or 4,000 hours after the effective date of this AD, whichever comes first. [[Page 45845]] (3) Use paragraph 3.A(2) of CFM Service Bulletin (SB) No. CFM56- 5 S/B 73-0182, Revision 6, dated March 8, 2012, or CFM SB No. CFM56- 5B S/B 73-0122, Revision 8, dated March 8, 2012, to do the inspection. (h) Repetitive Inspections Repeat the inspection required in paragraph (g)(3) of this AD before 10,000 hours since last overhaul if, after last overhaul, the HMU is exposed to TS-1 fuel. (i) Credit for Previous Actions If the HMU has not been exposed to TS-1 fuel since the last overhaul, then the initial inspection in paragraph (g) of this AD is not required. (j) Definitions For the purposes of this AD, overhaul is defined as HMU maintenance, which includes inspection, cleaning, or replacement of the HMU delta-P valve. (k) Paperwork Reduction Act Burden Statement A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120-0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES-200. (l) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. (m) Related Information (1) For more information about this AD, contact Martin Adler, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781-238-7157; fax: 781-238-7199; email: martin.adler@faa.gov. (2) Refer to European Aviation Safety Agency, AD 2012-0123, dated July 9, 2012, for more information. You may examine this AD on the Internet at http://www.regulations.gov. (n) 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 ADspecifies otherwise. (i) CFM International, S. A. (CFM) Service Bulletin No. CFM56-5 S/B 73-0182, Revision 6, dated March 8, 2012. (ii) CFM Service Bulletin No. CFM56-5B S/B 73-0122, Revision 8, dated March 8, 2012. (3) For CFM International, S. A. service information identified in this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; International phone: 513-552-3272; USA phone: 877-432-3272; International fax: 513-552-3329; USA fax: 877-432-3329; email: geae.aoc@ge.com; or CFM International SA, Customer Support Center, International phone: 33 1 64 14 88 66; International fax: 33 1 64 79 85 55; email: snecma.csc@snecma.fr. (4) You may view this service information at 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. (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.