6666 Federal Register / Vol. 77, No. 27 / Thursday, February 9, 2012 / Rules and Regulations

burden should be directed to the FAA at: 800 following foreign object damage (FOD) International Service Bulletin (SB) No. Independence Ave. SW., Washington, DC or a bird strike. CFM56–5B S/B 72–0777, Revision 1, 20591, Attn: Information Collection DATES: This AD is effective March 15, dated April 11, 2011. After the effective Clearance Officer, AES–200. 2012. date of the AD, it would also prohibit (n) AMOCs The Director of the Federal Register installing any fan blade, P/N 338–002– (1) The Manager, Wichita ACO, FAA, has approved the incorporation by reference 114–0, that has an S/N listed in the authority to approve AMOCs for this AD, of a certain publication listed in the AD Appendix A of CFM International SB if requested using the procedures found in 14 as of March 15, 2012. No. CFM56–5B S/B 72–0777, Revision CFR 39.19. In accordance with 14 CFR 39.19, ADDRESSES: For service information 1, dated April 11, 2011. send your request to your principal inspector identified in this AD, contact CFM or local Flight Standards District Office, as Comments International, Inc., Aviation Operations appropriate. If sending information directly We gave the public the opportunity to Center, 1 Neumann Way, M/D Room to the manager of the ACO, send it to the participate in developing this AD. The 285, Cincinnati, OH 45125; attention of the person identified in the following presents the comments International Phone: 1–(513) 552–3272; Related Information section of this AD. received on the proposal and the FAA’s (2) Before using any approved AMOC, USA Phone: (877) 432–3272; response to each comment. notify your appropriate principal inspector, International Fax: 1–(513) 552–3329; or lacking a principal inspector, the manager USA Fax: (877) 432–3329; email: Request to Reword the Unsafe of the local flight standards district office/ [email protected]; or CFM International Condition Statement certificate holding district office. S.A., Customer Support Center, (3) AMOCs approved for AD 2011–07–13, One commenter, CFM International, Amendment 39–16650 (76 FR 18376, April 4, International Phone: 33 1 64 14 88 66; S.A., requested that we reword the 2011), are approved for this AD. Fax: 33 1 64 79 85 55; email: unsafe condition statement ‘‘This defect [email protected]. You may review (o) Related Information would cause the upper panel of the fan copies of the referenced service blade to be liberated following FOD or For more information about this AD, information at the FAA, Engine & a bird strike and likely result in an in- contact T.N. Baktha, Senior Aerospace Propeller Directorate, 12 New England Engineer, Wichita ACO, FAA, 1801 Airport flight shutdown (IFSD)’’ to ‘‘This non- Executive Park, Burlington, MA. For conforming condition could increase the Road, Room 100, Wichita, Kansas 67209; information on the availability of this phone: (316) 946–4155; fax: (316) 946–4107; potential for damage during a foreign email: [email protected]. material at the FAA, call (781) 238– object impact. This secondary damage 7125. Issued in Kansas City, Missouri, on January could include liberation of the upper 25, 2012. Examining the AD Docket panel of the blade, which increases the potential for in-flight shutdown.’’ The John Colomy, You may examine the AD docket on commenter stated that the outcome of Acting Manager, Small Airplane Directorate, the Internet at http:// FOD or bird strike event will not Aircraft Certification Service. www.regulations.gov; or in person at the necessarily result in an outer panel [FR Doc. 2012–1998 Filed 2–8–12; 8:45 am] Docket Management Facility between release, therefore it is suggested that the BILLING CODE 4910–13–P 9 a.m. and 5 p.m., Monday through sentence be replaced to more accurately Friday, except Federal holidays. The AD reflect the possible outcome. docket contains this AD, the regulatory DEPARTMENT OF TRANSPORTATION We agree. The unsafe condition evaluation, any comments received, and increases the likelihood of separation other information. The address for the Federal Aviation Administration after an event, but will not result in Docket Office (phone: (800) 647–5527) separation in every case. We changed is Document Management Facility, U.S. 14 CFR Part 39 paragraph (d) of the AD, which is the Department of Transportation, Docket only place in the final rule that this [Docket No. FAA–2011–0946; Directorate Operations, M–30, West Building information appears, to state that this Identifier 2011–NE–02–AD; Amendment 39– Ground Floor, Room W12–140, 1200 defect could cause the upper panel of 16926; AD 2012–02–03] New Jersey Avenue SE., Washington, the fan blade to be liberated following DC 20590. RIN 2120–AA64 FOD or a bird strike and likely result in FOR FURTHER INFORMATION CONTACT: an IFSD. Martin Adler, Aerospace Engineer, Airworthiness Directives; CFM Request for Terminating Action International, S.A. Turbofan Engines Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England One commenter, American Airlines, AGENCY: Federal Aviation Executive Park, Burlington, MA 01803; requested that we establish a Administration (FAA), DOT. phone: (781) 238–7157; fax: (781) 238– terminating action that would specify a ACTION: Final rule. 7199; email: [email protected]. point at which the AD would be SUPPLEMENTARY INFORMATION: considered closed. This would allow the SUMMARY: We are adopting a new airline to limit the time that it must airworthiness directive (AD) for certain Discussion verify compliance with the AD and CFM International, S.A. model CFM56– We issued a notice of proposed reduce operating costs. 5B series turbofan engines. This AD was rulemaking (NPRM) to amend 14 CFR We do not agree. The AD as written prompted by a normal quality sampling part 39 to include an AD that would clearly limits the fan blade serial at CFM International, S.A. that isolated apply to the specified products. That numbers affected. The affected blades a production batch of fan blades with NPRM published in the Federal must never be installed in operating nonconforming geometry of mid-span Register on October 18, 2011 (76 FR engines. We have no mechanism to shroud tips of the fan blades. This AD 64293). That NPRM proposed to require assure that the affected fan blades have requires removing from service certain removing from service within 5,000 been completely purged from all serial number (S/N) fan blades. We are flight hours (FHs) after the effective date inventories and so we can not stipulate issuing this AD to prevent an inflight of the AD, any fan blade, P/N 338–002– when the AD is no longer applicable. shutdown (IFSD) of one or more engines 114–0, that has an S/N listed in CFM We did not change the AD.

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Conclusion List of Subjects in 14 CFR Part 39 (g) Installation Prohibition We reviewed the relevant data, Air transportation, Aircraft, Aviation After the effective date of this AD, do not considered the comments received, and safety, Incorporation by reference, install any fan blade, P/N 338–002–114–0, determined that air safety and the Safety. that has a S/N listed in Appendix A of CFM public interest require adopting the AD International SB No. CFM56–5B S/B 72– with the changes described previously. Adoption of the Amendment 0777, Revision 1, dated April 11, 2011, onto Accordingly, under the authority any engine. Costs of Compliance delegated to me by the Administrator, (h) Alternative Methods of Compliance We estimate that this AD will affect the FAA amends 14 CFR part 39 as (AMOCs) 16 engines installed on airplanes of U.S. follows: registry. We also estimate that it will The Manager, Engine Certification Office, take about 6 work-hours per engine to PART 39—AIRWORTHINESS may approve AMOCs for this AD. Use the perform the required actions and that DIRECTIVES procedures found in 14 CFR 39.19 to make the average labor rate is $85 per work- your request. ■ hour. Required parts will cost about 1. The authority citation for part 39 (i) Related Information continues to read as follows: $47,830 per engine. Based on these For more information about this AD, figures, we estimate the total cost of this Authority: 49 U.S.C. 106(g), 40113, 44701. contact Martin Adler, Aerospace Engineer, AD to U.S. operators to be $773,440. § 39.13 [Amended] Engine Certification Office, FAA, Engine & Authority for This Rulemaking Propeller Directorate, 12 New England ■ 2. The FAA amends § 39.13 by adding Executive Park, Burlington, MA 01803; Title 49 of the United States Code the following new airworthiness phone: (781) 238–7157; fax: (781) 238–7199; specifies the FAA’s authority to issue directive (AD): email: [email protected]. rules on aviation safety. Subtitle I, section 106, describes the authority of 2012–02–03 CFM International, S.A.: (j) Material Incorporated by Reference the FAA Administrator. Subtitle VII: Amendment 39–16926; Docket No. FAA–2011–0946; Directorate Identifier (1) You must use the following service Aviation Programs, describes in more 2011–NE–02–AD. information to identify the fan blade S/Ns detail the scope of the Agency’s affected by this AD. The Director of the (a) Effective Date authority. Federal Register approved the incorporation We are issuing this rulemaking under This AD is effective March 15, 2012. by reference (IBR) under 5 U.S.C. 552(a) and the authority described in subtitle VII, (b) Affected ADs 1 CFR part 51 of the following service part A, subpart III, section 44701: None. information. ‘‘General requirements.’’ Under that (2) CFM International Service Bulletin No. section, Congress charges the FAA with (c) Applicability CFM56–5B S/B 72–0777, Revision 1, dated promoting safe flight of civil aircraft in This AD applies to CFM International, S.A. April 11, 2011. air commerce by prescribing regulations CFM56–5B1/3, CFM56–5B2/3, CFM56–5B3/ (3) For service information identified in for practices, methods, and procedures 3, CFM56–5B4/3, CFM56–5B5/3, CFM56– this AD, contact CFM International, Inc., the Administrator finds necessary for 5B6/3, CFM56–5B7/3, CFM56–5B8/3, Aviation Operations Center, 1 Neumann safety in air commerce. This regulation CFM56–5B9/3, CFM56–5B3/3B1, and Way, M/D Room 285, Cincinnati, OH 45125; is within the scope of that authority CFM56–5B4/3B1 engines equipped with fan International Phone: 1–(513) 552–3272; USA blades part number (P/N) 338–002–114–0 because it addresses an unsafe condition Phone: (877) 432–3272; International Fax: 1– that have a serial number (S/N) listed in that is likely to exist or develop on (513) 552–3329; USA Fax: (877) 432–3329; Appendix A of CFM International Service products identified in this rulemaking email: [email protected]; or CFM action. Bulletin (SB) No. CFM56–5B S/B 72–0777, Revision 1, dated April 11, 2011. International SA, Customer Support Center, Regulatory Findings International Phone: 33 1 64 14 88 66; Fax: (d) Unsafe Condition 33 1 64 79 85 55; e-mail: This AD will not have federalism This AD was prompted by a normal quality [email protected]. implications under Executive Order sampling at CFM International. S.A. that (4) You may review copies of the 13132. This AD will not have a isolated a production batch of fan blades referenced service information at the FAA, substantial direct effect on the States, on with nonconforming geometry of mid-span Engine & Propeller Directorate, 12 New the relationship between the national shroud tips of the fan blades. This defect England Executive Park, Burlington, MA government and the States, or on the could cause the upper panel of the fan blade 01803. For information on the availability of to be liberated following foreign object distribution of power and this material at the FAA, call 781–238–7125. damage (FOD) or a bird strike, and likely responsibilities among the various (5) You may also review copies of the result in an inflight shutdown (IFSD). We are levels of government. service information that is incorporated by For the reasons discussed above, I issuing this AD to prevent an IFSD of one or more engines following FOD or a bird strike. reference at the National Archives and certify that this AD: Records Administration (NARA). For (1) Is not a ‘‘significant regulatory (e) Compliance information on the availability of this action’’ under Executive Order 12866, Comply with this AD within the material at NARA, call 202–741–6030, or go (2) Is not a ‘‘significant rule’’ under compliance times specified, unless already to: http://www.archives.gov/federal-register/ DOT Regulatory Policies and Procedures done. cfr/ibr-locations.html. (44 FR 11034, February 26, 1979), (f) Remove Fan Blades From Service Issued in Burlington, Massachusetts, on (3) Will not affect intrastate aviation For engines that have fan blades, P/N 338– January 19, 2012. in Alaska, and 002–114–0, with S/Ns listed in Appendix A Peter A. White, (4) Will not have a significant of CFM International SB No. CFM56–5B S/ Manager, Engine & Propeller Directorate, economic impact, positive or negative, B 72–0777, Revision 1, dated April 11, 2011, Aircraft Certification Service. on a substantial number of small entities remove the fan blades from service within under the criteria of the Regulatory 5,000 flight hours after the effective date of [FR Doc. 2012–2893 Filed 2–8–12; 8:45 am] Flexibility Act. this AD. BILLING CODE 4910–13–P

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