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11. Markings and Placards— Vibration levels imposed on the DEPARTMENT OF TRANSPORTATION Miscellaneous Markings and Placards— airframe can be mitigated to an Fuel, and Oil, Filler Openings acceptable level by utilization of Federal Aviation Administration (Compliance With § 23.1557(c)(1)(ii) isolators, damper clutches, and similar Requirements) provisions so that unacceptable 14 CFR Part 39 Instead of compliance with vibration levels are not imposed on the [Docket No. FAA–2013–0195; Directorate § 23.1557(c)(1)(i), the applicant must previously certificated structure. Identifier 2013–NE–08–AD; Amendment 39– comply with the following: 14. Powerplant Installation—One 17553; AD 2013–16–15] Fuel filler openings must be marked Cylinder Inoperative RIN 2120–AA64 at or near the filler cover with— Tests or analysis, or a combination of For -powered Airworthiness Directives; General methods, must show that the airframe airplanes— Electric Company Engines can withstand the shaking or vibratory (a) The words ‘‘’’; and forces imposed by the engine if a AGENCY: Federal Aviation (b) The permissible fuel designations, cylinder becomes inoperative. Diesel Administration (FAA), DOT. or references to the Airplane Flight engines of conventional design typically Manual (AFM) for permissible fuel ACTION: Final rule. have extremely high levels of vibration designations. when a cylinder becomes inoperative. SUMMARY: We are adopting a new (c) A warning placard or note that Data must be provided to the airframe airworthiness directive (AD) for all states the following or similar: installer/modifier so either appropriate General Electric Company (GE) model ‘‘Warning—this airplane is equipped design considerations or operating GEnx–2B67B turbofan engines with with an aircraft diesel engine; service procedures, or both, can be developed to booster anti-ice (BAI) air duct, part with approved fuels only.’’ prevent airframe and damage. number (P/N) 2469M32G01, and The colors of this warning placard support bracket, P/N 2469M46G01, should be black and white. 15. Powerplant Installation—High installed. This AD was prompted by Energy Engine Fragments 12. Powerplant—Fuel System—Fuel- reports of cracks in the BAI air duct. Freezing It may be possible for diesel engine This AD requires initial and repetitive cylinders (or portions thereof) to fail visual inspections of the BAI air duct, If the fuel in the tanks cannot be and physically separate from the engine removal from service of the BAI air duct shown to flow suitably under all at high velocity (due to the high internal if it fails inspection and, as a mandatory possible temperature conditions, then pressures). This failure mode will be terminating action, the installation of fuel temperature limitations are considered possible in engine designs new BAI air duct support brackets. We required. These limitations will be with removable cylinders or other non- are issuing this AD to prevent failure of considered as part of the essential integral block designs. The following is the BAI air duct, resulting in an in-flight operating parameters for the aircraft. required: shutdown of one or more engines, loss Limitations will be determined as (a) It must be shown that the engine of thrust control, and damage to the follows: construction type (massive or integral airplane. (a) The takeoff temperature limitation block with non-removable cylinders) is must be determined by testing or DATES: This AD is effective September inherently resistant to liberating high 23, 2013. analysis to define the minimum fuel energy fragments in the event of a cold-soaked temperature that the catastrophic engine failure; or ADDRESSES: For service information airplane can operate on. (b) It must be shown by the design of identified in this AD, contact General (b) The minimum operating the engine, that engine cylinders, other Electric Company, GE Aviation, Room temperature limitation must be engine components or portions thereof 285, One Neumann Way, Cincinnati, determined by testing to define the (fragments) cannot be shed or blown off OH; phone: 513–552–3272; email: minimum acceptable operating of the engine in the event of a [email protected]. You may view this temperature after takeoff (with catastrophic engine failure; or service information at the FAA, Engine minimum takeoff temperature (c) It must be shown that all possible & Propeller Directorate, 12 New England established in (1) above). liberated engine parts or components do Executive Park, Burlington, MA. For information on the availability of this 13. Powerplant Installation—Vibration not have adequate energy to penetrate material at the FAA, call 781–238–7125. Levels engine cowlings; or (d) Assuming infinite fragment Vibration levels throughout the Examining the AD Docket energy, and analyzing the trajectory of engine operating range must be You may examine the AD docket on the probable fragments and components, evaluated and: the Internet at http:// any hazard due to liberated engine parts (a) Vibration levels imposed on the www.regulations.gov; or in person at the or components will be minimized and airframe must be less than or equivalent Docket Management Facility between 9 the possibility of crew injury is to those of the gasoline engine; or a.m. and 5 p.m., Monday through eliminated. Minimization must be (b) Any vibration level higher than Friday, except Federal holidays. The AD considered during initial design and not that imposed on the airframe by the docket contains this AD, the regulatory presented as an analysis after design replaced gasoline engine must be evaluation, any comments received, and completion. considered in the modification and the other information. The address for the effects on the technical areas covered by Issued in Kansas City, Missouri, on August Docket Office (phone: 800–647–5527) is the following paragraphs must be 12, 2013. Document Management Facility, U.S. investigated: Earl Lawrence, Department of Transportation, Docket 14 CFR part 23, §§ 23.251; 23.613; Manager, Small Airplane Directorate, Aircraft Operations, M–30, West Building 23.627; 23.629 (or CAR 3.159, as Certification Service. Ground Floor, Room W12–140, 1200 applicable to various models); 23.572; [FR Doc. 2013–20152 Filed 8–16–13; 8:45 am] New Jersey Avenue SE., Washington, 23.573; 23.574 and 23.901. BILLING CODE 4910–13–P DC 20590.

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FOR FURTHER INFORMATION CONTACT: install new BAI air duct support distribution of power and Jason Yang, Aerospace Engineer, Engine brackets and replace the BAI air duct responsibilities among the various Certification Office, FAA, Engine & with a part that is eligible for levels of government. Propeller Directorate, 12 New England installation. We did not change the AD. For the reasons discussed above, I Executive Park, Burlington, MA 01803; Conclusion certify that this AD: phone: 781–238–7747; fax: 781–238– (1) Is not a ‘‘significant regulatory 7199; email: [email protected]. We reviewed the relevant data, action’’ under Executive Order 12866, SUPPLEMENTARY INFORMATION: considered the comments received, and (2) Is not a ‘‘significant rule’’ under determined that air safety and the Discussion DOT Regulatory Policies and Procedures public interest require adopting this AD (44 FR 11034, February 26, 1979), We issued a notice of proposed with the changes described previously. (3) Will not affect intrastate aviation rulemaking (NPRM) to amend 14 CFR We have determined that these minor in Alaska to the extent that it justifies part 39 to include an AD that would changes: making a regulatory distinction, and • Are consistent with the intent that apply to the specified products. The (4) Will not have a significant was proposed in the NPRM (78 FR NPRM published in the Federal economic impact, positive or negative, 21578, April 11, 2013) for correcting the Register on April 11, 2013 (78 FR on a substantial number of small entities 21578). The NPRM proposed to require unsafe condition; and • Do not add any additional burden under the criteria of the Regulatory initial and repetitive visual inspections Flexibility Act. of the BAI air duct, removal from upon the public than was already service of the BAI air duct if it fails proposed in the NPRM (78 FR 21578, List of Subjects in 14 CFR Part 39 inspection and, as a mandatory April 11, 2013). We also determined that these Air transportation, Aircraft, Aviation terminating action, the installation of safety, Incorporation by reference, new BAI air duct support brackets. changes will not increase the economic burden on any operator or increase the Safety. Comments scope of this AD. Adoption of the Amendment We gave the public the opportunity to Costs of Compliance Accordingly, under the authority participate in developing this AD. The delegated to me by the Administrator, following presents the comments We estimate that this AD affects 16 the FAA amends 14 CFR part 39 as received on the proposal and the FAA’s engines installed on airplanes of U.S. follows: response to each comment. registry. We also estimate that it will take about 4 hours per engine to comply PART 39—AIRWORTHINESS Request To Revise Applicability with this AD. The average labor rate is DIRECTIVES The Boeing Company and GE asked $85 per hour. Required parts cost about that the GEnx-2B67 turbofan engine be $11,000 per engine. Based on these ■ 1. The authority citation for part 39 removed from the Applicability section figures, we estimate the cost of this AD continues to read as follows: of this AD. The commenters noted that to U.S. operators to be $181,440. Authority: 49 U.S.C. 106(g), 40113, 44701. this engine does not have BAI hardware, Authority for This Rulemaking therefore, inspection and modification § 39.13 [Amended] of the BAI does not apply. Title 49 of the United States Code We agree. We revised this AD by specifies the FAA’s authority to issue ■ 2. The FAA amends § 39.13 by adding removing the GEnx-2B67 engine from rules on aviation safety. Subtitle I, the following new airworthiness the Applicability section. section 106, describes the authority of directive (AD): the FAA Administrator. Subtitle VII: 2013–16–15 General Electric Company: Request To Update Service Information Aviation Programs, describes in more Amendment 39–17553; Docket No. GE requested that we include a detail the scope of the Agency’s FAA–2013–0195; Directorate Identifier reference in the AD to GE Service authority. 2013–NE–08–AD. Bulletin (SB) GEnx-2B S/B 75–0008, We are issuing this rulemaking under (a) Effective Date Revision 2, dated May 30, 2013. This SB the authority described in Subtitle VII, This AD is effective September 23, 2013. was published after the NPRM (78 FR Part A, Subpart III, Section 44701: 21578, April 11, 2013) was issued. ‘‘General requirements.’’ Under that (b) Affected ADs We agree. We revised this AD by section, Congress charges the FAA with None. adding a reference to GE SB GEnx-2B S/ promoting safe flight of civil aircraft in (c) Applicability B 75–0008, Revision 2, dated May 30, air commerce by prescribing regulations 2013, in the Related Information for practices, methods, and procedures This AD applies to all General Electric section. the Administrator finds necessary for Company (GE) model GEnx-2B67B turbofan safety in air commerce. This regulation engines with booster anti-ice (BAI) air duct, Request To Allow Repetitive part number (P/N) 2469M32G01, and support is within the scope of that authority bracket, P/N 2469M46G01, installed. Replacement of BAI Air Duct because it addresses an unsafe condition Cathay Pacific Airways requested that that is likely to exist or develop on (d) Unsafe Condition we allow removal of the affected BAI air products identified in this rulemaking This AD was prompted by reports of cracks duct every 400 engine flight cycles and action. in the BAI air duct, P/N 2469M32G01. We are its replacement with a new spare duct issuing this AD to prevent failure of the BAI as an alternative method of compliance Regulatory Findings air duct, resulting in an in-flight shutdown of to the AD. This AD will not have federalism one or more engines, loss of thrust control, We disagree. Replacement of the implications under Executive Order and damage to the airplane. affected BAI air duct is not sufficient to 13132. This AD will not have a (e) Compliance meet the requirements of this AD. Per substantial direct effect on the States, on Comply with this AD within the the Mandatory Terminating Action the relationship between the national compliance times specified, unless already section of this AD, operators must government and the States, or on the done.

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(f) Inspection of BAI Air Duct DEPARTMENT OF TRANSPORTATION using new RNAV (GPS) standard (1) Perform an initial visual inspection of instrument approach procedures at the the BAI air duct, P/N 2469M32G01, for Federal Aviation Administration airport. This action is necessary for the cracks prior to accumulating 400 cycles since safety and management of IFR new (CSN). 14 CFR Part 71 operations. (2) Thereafter, repeat the visual inspection [Docket No. FAA–2012–1175; Airspace The FAA has determined this within every 100 cycles since last inspection. Docket No. 12–AAL–11] (3) If cracks in the BAI air duct are found regulation only involves an established body of technical regulations for which during any inspection required by this AD, Amendment of Class E Airspace; Point remove the BAI air duct from service. frequent and routine amendments are Thomson, AK necessary to keep them operationally (g) Mandatory Terminating Action AGENCY: Federal Aviation current. Therefore, this regulation: (1) Is As mandatory terminating action to the Administration (FAA), DOT. not a ‘‘significant regulatory action’’ repetitive inspection requirement of this AD, ACTION: Final rule. under Executive Order 12866; (2) is not at the next removal of BAI air duct, P/N a ‘‘significant rule’’ under DOT 2469M32G01, or if the BAI air duct is found SUMMARY: This action modifies the Regulatory Policies and Procedures (44 cracked, after the effective date of this AD, airspace at Point Thomson, AK, by FR 11034; February 26, 1979); and (3) do the following: establishing Class E Airspace at Point does not warrant preparation of a (1) Install new BAI air duct support Thomson Airstrip Airport, Point regulatory evaluation as the anticipated brackets, P/Ns 2550M03G01, 2548M66G01, 2548M67P01, 2550M18G01, and Thomson, AK. New Area Navigation impact is so minimal. Since this is a 2550M17P01. (RNAV) Global Positioning System routine matter that only affects air traffic (2) Replace the BAI air duct with one that (GPS) standard instrument approach procedures and air navigation, it is is eligible for installation. procedures have been established at the certified this rule, when promulgated, airport. This action enhances the safety does not have a significant economic (h) Definition and management of aircraft operations impact on a substantial number of small For the purpose of this AD, a BAI air duct at the airport. entities under the criteria of the that is eligible for installation is one that has DATES: Effective date, 0901 UTC, Regulatory Flexibility Act. The FAA’s accumulated 25 CSN or fewer. October 17, 2013. The Director of the authority to issue rules regarding (i) Alternative Methods of Compliance Federal Register approves this aviation safety is found in Title 49 of the (AMOCs) incorporation by reference action under U.S. Code. Subtitle 1, Section 106 The Manager, Engine Certification Office, 1 CFR Part 51, subject to the annual discusses the authority of the FAA FAA, may approve AMOCs for this AD. Use revision of FAA Order 7400.9 and Administrator. Subtitle VII, Aviation the procedures found in 14 CFR 39.19 to publication of conforming amendments. Programs, describes in more detail the make your request. FOR FURTHER INFORMATION CONTACT: scope of the agency’s authority. This (j) Related Information Richard Roberts, Federal Aviation rulemaking is promulgated under the Administration, Operations Support authority described in Subtitle VII, Part (1) For more information about this AD, A, Subpart I, Section 40103. Under that contact Jason Yang, Aerospace Engineer, Group, Western Service Center, 1601 Engine Certification Office, FAA, Engine & Lind Avenue SW., Renton, WA, 98057; section, the FAA is charged with Propeller Directorate, 12 New England telephone (425) 203–4517. prescribing regulations to assign the use Executive Park, Burlington, MA 01803; SUPPLEMENTARY INFORMATION: of airspace necessary to ensure the phone: 781–238–7747; fax: 781–238–7199; safety of aircraft and the efficient use of email: [email protected]. History airspace. This regulation is within the (2) Refer to GE Service Bulletin (SB) No. On May 23, 2013, the FAA published scope of that authority as it modifies GEnx-2B S/B 75–0006, dated July 23, 2012; in the Federal Register a notice of controlled airspace at Point Thomson and GE SB No. GEnx-2B S/B 75–0008, proposed rulemaking to modify Airstrip Airport, Point Thomson, AK. Revision 1, dated February 4, 2013, or controlled airspace at Point Thomson, Environmental Review Revision 2, dated May 30, 2013; for guidance AK (78 FR 30797). Interested parties on inspecting and, if necessary, removing and replacing the BAI air duct, as well as were invited to participate in this The FAA has determined that this procedures for installation of new BAI air rulemaking effort by submitting written action qualifies for categorical exclusion duct support brackets. comments on the proposal to the FAA. under the National Environmental (3) For service information identified in No comments were received. Policy Act in accordance with FAA this AD, contact General Electric, One Class E airspace designations are Order 1050.1E, ‘‘Environmental Neumann Way, Room 285, Cincinnati, OH; published in paragraph 6005, of FAA Impacts: Policies and Procedures,’’ phone: 513–552–3272; email: geae.aoc@ Order 7400.9W dated August 8, 2012, paragraph 311a. This airspace action is ge.com. and effective September 15, 2012, which not expected to cause any potentially (4) You may view this service information is incorporated by reference in 14 CFR significant environmental impacts, and at the FAA, Engine & Propeller Directorate, Part 71.1. The Class E airspace 12 New England Executive Park, Burlington, no extraordinary circumstances exist designation listed in this document will that warrant preparation of an MA. For information on the availability of be published subsequently in that this material at the FAA, call 781–238–7125. environmental assessment. Order. (k) Material Incorporated by Reference List of Subjects in 14 CFR Part 71 The Rule None. This action amends Title 14 Code of Airspace, Incorporation by reference, Issued in Burlington, Massachusetts, on Federal Regulations (14 CFR) part 71 by Navigation (air). August 7, 2013. modifying Class E airspace extending Adoption of the Amendment Frank P. Paskiewicz, upward from 700 feet above the surface Acting Director, Aircraft Certification Service. within an 8.9-mile radius of Point In consideration of the foregoing, the [FR Doc. 2013–20097 Filed 8–16–13; 8:45 am] Thomson Airstrip Airport, Point Federal Aviation Administration BILLING CODE 4910–13–P Thomson, AK, to accommodate aircraft amends 14 CFR Part 71 as follows:

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