Airworthiness Directives; Rolls-Royce plc Turbofan Engines, 34758-34761 [2018-15668]

Download as PDF 34758 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations (2) Engines listed in Appendix 1, Table 1, of RR Alert NMSB Trent 1000 72–AJ992, Revision 1, dated January 3, 2018, or Appendix 1, Table 1, of RR Alert NMSB Trent 1000 72–AJ992, Revision 2, dated April 16, 2018, may not be installed on an airplane with engines that have IPT blades installed in accordance with RR NMSB Trent 1000 72– J442, Revision 1, dated February 21, 2018, or Initial Issue, dated September 21, 2016; or RR NMSB Trent 1000 72–J465, Revision 2, dated February 28, 2018, or Revision 1, dated January 10, 2017, or Initial Issue, dated December 22, 2016. (i) Terminating Action Modification of an engine in accordance with the instructions of RR SB Trent 1000 72–H818, dated November 14, 2016, constitutes terminating action for the requirements of this AD for that engine. (j) 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 (k)(1) of this AD. You may email your request to: ANE-AD-AMOC@ faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. amozie on DSK3GDR082PROD with RULES (k) Related Information (1) For more information about this AD, contact Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7088; fax: 781–238–7199; email: kevin.m.clark@faa.gov. (2) Refer to European Aviation Safety Agency (EASA) AD 2018–0086, dated April 17, 2018, for more information. You may examine the EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA–2017–1237. (l) 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. (i) Rolls-Royce plc (RR) Alert NonModification Service Bulletin (NMSB) Trent 1000–72–AJ992, Revision 1, dated January 3, 2018. (ii) RR Alert NMSB Trent 1000–72–AJ992, Revision 2, dated April 16, 2018. (iii) RR Service Bulletin Trent 1000 72– H818, dated November 14, 2016. (3) For RR service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, VerDate Sep<11>2014 16:12 Jul 20, 2018 Jkt 244001 England, DE24 8BJ; phone: 011–44–1332– 242424; fax: 011–44–1332–249936; email: http://www.rolls-royce.com/contact/civil_ team.jsp; internet: https://customers.rollsroyce.com/public/rollsroycecare. (4) You may view this service information at 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. (5) 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/ibrlocations.html. Issued in Burlington, Massachusetts, on July 17, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018–15649 Filed 7–20–18; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0590; Product Identifier 2018–NE–24–AD; Amendment 39– 19319; AD 2018–13–07] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: We are adopting a new airworthiness directive (AD) for all Rolls-Royce plc (RR) Trent 1000–A, Trent 1000–C, Trent 1000–D, Trent 1000–E, Trent 1000–G, and Trent 1000– H turbofan engine models. This AD requires inspecting the intermediatepressure compressor (IPC) stage 1 rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, and removing any cracked parts from service. This AD was prompted by crack findings on the IPC rotor blades, which could lead to separations resulting in engine failures. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective August 7, 2018. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 7, 2018. We must receive comments on this AD by September 6, 2018. SUMMARY: PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this final rule, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, DE24 8BJ; phone: 011–44–1332–242424; fax: 011–44– 1332–249936; email: corporate.care@ rolls-royce.com; internet: https:// customers.rolls-royce.com/public/ rollsroycecare. You may view this service information at the FAA, Engine & Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781–238– 7759. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2018–0590. ADDRESSES: Examining the AD Docket You may examine the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0590; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the mandatory continuing airworthiness information (MCAI), the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800–647– 5527) is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7088; fax: 781–238–7199; email: kevin.m.clark@faa.gov. SUPPLEMENTARY INFORMATION: Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European E:\FR\FM\23JYR1.SGM 23JYR1 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations Community, has issued EASA AD 2018– 0128, dated June 12, 2018 (referred to hereinafter as ‘‘the MCAI’’), to address an unsafe condition for the specified products. The MCAI states: Occurrences were reported on RR Trent 1000 ‘Pack B’ engines, where some IPC Rotor 1 and Rotor 2 blades were found cracked. This condition, if not detected and corrected, could lead to in-flight blade release, possibly resulting in reduced control of the aeroplane. To address this potential unsafe condition, RR issued the NMSB and the applicable NMSB to provide instructions to inspect IPC Rotor 1 blades, IPC Rotor 2 blades (front and rear face) and IPC shaft Stage 2 dovetail posts. For the reason described above, this [EASA] AD requires a one-time inspection of the affected parts and, depending on the findings, accomplishment of applicable corrective action(s). You may obtain further information by examining the MCAI in the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0590. Related Service Information Under 1 CFR Part 51 We reviewed RR Alert NonModification Service Bulletin (NMSB) Trent 1000 72–AK130, Initial Issue, dated June 11, 2018. The NMSB describes procedures for performing a one-time inspection of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, and lists engine serial numbers. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. Other Related Service Information We reviewed RR NMSB Trent 1000 72–K099, Initial Issue, dated June 11, 2018; RR NMSB Trent 1000 72–K100, Initial Issue, dated June 11, 2018; and RR NMSB Trent 1000 72–K129, Initial Issue, dated June 11, 2018. RR NMSB Trent 1000 72–K099 describes procedures for an ultrasonic inspection of the IPC stage 1 rotor blades. RR NMSB Trent 1000 72–K100 describes procedures for a visual borescope inspection of the IPC stage 2 rotor blades and IPC stage 2 dovetail posts. RR NMSB Trent 1000 72–K129 describes procedures for an ultrasonic inspection of the IPC stage 2 rotor blades. FAA’s Determination This product has been approved by EASA and is approved for operation in the United States. Pursuant to our bilateral agreement with the European Community, EASA has notified us of the unsafe condition described in the MCAI and service information referenced above. We are issuing this AD because we evaluated all the relevant information provided by EASA and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. AD Requirements This AD requires inspecting the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, and removing any cracked parts from service. 34759 FAA’s Justification and Determination of the Effective Date No domestic operators use this product. Therefore, we find good cause that notice and opportunity for prior public comment are unnecessary. In addition, for the reason stated above, we find that good cause exists for making this amendment effective in less than 30 days. Comments Invited This AD is a final rule that involves requirements affecting flight safety and was not preceded by notice and an opportunity for public comment. However, we invite you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under the ADDRESSES section. Include the docket number FAA–2018–0590 and Product Identifier 2018–NE–24–AD at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this final rule. We will consider all comments received by the closing date and may amend this final rule because of those comments. We will post all comments we receive, without change, to http:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this final rule. Costs of Compliance We estimate that this AD affects 0 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Inspect IPC blades and dovetail post ............. 20 work-hours × $85 per hour = $1,700 ........ amozie on DSK3GDR082PROD with RULES Authority for This Rulemaking Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in Subtitle VII, Part A, Subpart III, Section 44701: ‘‘General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in VerDate Sep<11>2014 16:12 Jul 20, 2018 Jkt 244001 air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 Cost per product Parts cost $0 $1,700 Cost on U.S. operators $0 Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national E:\FR\FM\23JYR1.SGM 23JYR1 34760 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ 2018–13–07 Rolls-Royce plc: Amendment 39–19319; Docket No. FAA–2018–0590; Product Identifier 2018–NE–24–AD. (a) Effective Date This AD is effective August 7, 2018. (b) Affected ADs None. (c) Applicability This AD applies to all Rolls Royce plc (RR) Trent 1000–A, Trent 1000–C, Trent 1000–D, Trent 1000–E, Trent 1000–G, and Trent 1000–H turbofan engine models. amozie on DSK3GDR082PROD with RULES (d) Subject Joint Aircraft System Component (JASC) Code 7230, Turbine Engine Compressor Section. (e) Unsafe Condition This AD was prompted by reports of intermediate-pressure compressor (IPC) rotor blade cracks, which could lead to separations resulting in engine failures. We are issuing this AD to prevent failure of the IPC. The unsafe condition, if not addressed, could result in failure of one or more engines, loss of thrust control, and loss of the airplane. VerDate Sep<11>2014 16:12 Jul 20, 2018 Jkt 244001 (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Inspect the IPC stage 1 rotor blades, at the applicable compliance times specified in paragraphs (g)(1)(i), (ii), or (iii) after the effective date of this AD, whichever comes first: (i) Within 30 days for the serial number IPC modules installed in the referenced serial number engines listed in Group 1 in Appendix 1 of RR Alert Non-Modification Service Bulletin (NMSB) Trent 1000 72– AK130, dated June 11, 2018, using the Accomplishment Instructions, paragraph 3.A.(1)(a), of RR Alert NMSB Trent 1000 72– AK130, dated June 11, 2018. (ii) Within 60 days for all IPC modules not listed in Group 1 in Appendix 1 of RR Alert NMSB Trent 1000 72–AK130, dated June 11, 2018, using the Accomplishment Instructions, paragraph 3.A.(1)(a), of RR Alert NMSB Trent 1000 72–AK130, dated June 11, 2018. Those serial number IPC modules specifically identified in Group 2 in Appendix 1 of RR Alert NMSB Trent 1000 72–AK130, dated June 11, 2018, do not require inspection. (iii) At the next engine shop visit, using the Accomplishment Instructions, paragraph 3.A.(2)(a), of RR Alert NMSB Trent 1000 72– AK130, dated June 11, 2018. (2) For IPC modules with 1,000 or more flight cycles, inspect the IPC stage 2 rotor blades and IPC stage 2 dovetail posts within 30 days of the effective date of this AD or at the next engine shop visit, whichever comes first. (i) For IPC stage 2 rotor blades and IPC stage 2 dovetail posts inspected on-wing, use Accomplishment Instructions, paragraphs 3.B.(1)(a) and 3.C.(1)(a), of RR Alert NMSB Trent 1000 72–AK130, dated June 11, 2018. (ii) For IPC stage 2 rotor blades and IPC stage 2 dovetail posts inspected in shop, use Accomplishment Instructions, paragraphs 3.B.(2)(a) and 3.C.(2)(a), of RR Alert NMSB Trent 1000 72–AK130, dated June 11, 2018. (3) For engines that are in an engine shop visit on the effective date of this AD, inspect IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts before returning the engine to service. (4) If any IPC stage 1 rotor blade, IPC stage 2 rotor blade, or an IPC shaft stage 2 dovetail post is found cracked during any inspection required by this AD, remove the part from service and replace the part with a part eligible for installation before further flight. (h) Definition An ’’engine shop visit’’ is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges (lettered flanges). The separation of engine flanges solely for the purpose of transportation of the engine without subsequent engine maintenance does not constitute an engine shop visit. (i) Special Flight Permits (1) Special flight permits, as described in Section 21.197 and Section 21.199 of the PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 Federal Aviation Regulations (14 CFR 21.197 and 21.199), are subject to the requirements of paragraph (i)(1)(i) of this AD. (i) Operators who are prohibited from further flight due to an IPC stage 1 rotor blade, IPC stage 2 rotor blade, or an IPC stage 2 dovetail post being found cracked, may perform a one-time non-revenue ferry flight to a location where the engine can be removed from service. This ferry flight must be performed without passengers, involve non-extended operations (ETOPS), and consume no more than three flight cycles. (ii) Reserved. (2) Reserved. (j) 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 (k)(1) of this AD. You may email your request to: ANE-AD-AMOC@ faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (k) Related Information (1) For more information about this AD, contact Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7088; fax: 781–238–7199; email: kevin.m.clark@faa.gov. (2) Refer to European Aviation Safety Agency (EASA) AD 2018–0128, dated June 12, 2018, for more information. You may examine the EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA–2018–0590. (l) 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. (i) Rolls-Royce plc (RR) Alert NonModification Service Bulletin (NMSB) Trent 1000 72–AK130, Initial issue, dated June 11, 2018. (ii) Reserved. (3) For service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, DE24 8BJ; phone: 011–44–1332– 242424; fax: 011–44–1332–249936; email: corporate.care@rolls-royce.com; internet: https://customers.rolls-royce.com/public/ rollsroycecare. (4) You may view this service information at FAA, Engine & Propeller Standards Branch, 1200 District Avenue, Burlington, E:\FR\FM\23JYR1.SGM 23JYR1 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations MA. For information on the availability of this material at the FAA, call 781–238–7759. (5) 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/ibrlocations.html. Issued in Burlington, Massachusetts, on July 17, 2018. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018–15668 Filed 7–20–18; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0636; Product Identifier 2018–NM–097–AD; Amendment 39–19337; AD 2018–15–05] RIN 2120–AA64 Airworthiness Directives; Airbus SAS Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: amozie on DSK3GDR082PROD with RULES Examining the AD Docket We are adopting a new airworthiness directive (AD) for certain Airbus SAS Model A319–115, –132, and –133 airplanes; and Model A320–214, –216, –232, –233, –251N, and –271N airplanes. This AD was prompted by reports of safety pins that had been installed on the inflation reservoirs of escape slides/slide rafts during production, but had not been removed. This AD requires inspecting each passenger escape slide/slide raft to determine whether the safety pin is installed on the slide inflation reservoir, and removing any installed safety pin. We are issuing this AD to address the unsafe condition on these products. DATES: This AD becomes effective August 7, 2018. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of August 7, 2018. We must receive comments on this AD by September 6, 2018. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. SUMMARY: VerDate Sep<11>2014 16:12 Jul 20, 2018 Jkt 244001 • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this final rule, contact Airbus SAS, Airworthiness Office—EIAS, 2 RondPoint Emile Dewoitine, 31700 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33 5 61 93 44 51; email account.airworth-eas@airbus.com; internet http://www.airbus.com. You may view this referenced service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. It is also available on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0636. You may examine the AD docket on the internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0636; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (telephone 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206–231–3323. SUPPLEMENTARY INFORMATION: Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2018–0129, dated June 15, 2018 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for certain Airbus SAS Model A319– 115, –132, and –133 airplanes; and Model A320–214, –216, –232, –233, PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 34761 –251N, and –271N airplanes. The MCAI states: Safety pins have been found installed on the escape slide/slide raft inflation reservoir on several aeroplanes. Investigations determined that, on certain aeroplanes, safety pins may not have been removed on the production line. This condition, if not detected and corrected, would prevent the deployment of the escape slide/slide raft, when required in case of emergency, possibly resulting in injury to the occupants. To address this potential unsafe condition, Airbus issued the original issue of the AOT [alert operators transmission], providing inspection instructions. The AOT has been later revised twice to extend the applicability. For the reasons described above, this AD requires a one-time inspection of each affected slide/raft and, depending on findings, removal of the safety pin. You may examine the MCAI on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA–2018–0636. Related Service Information Under 1 CFR Part 51 Airbus has issued Alert Operators Transmission A25N012–17, Revision 02, dated May 29, 2018. This service information describes procedures for inspecting each passenger escape slide/ slide raft to determine whether the safety pin is installed on the slide inflation reservoir, and removing any installed safety pin and stowing the pin in the stowage pocket of the soft cover of the pack assembly. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA’s Determination This product has been approved by the aviation authority of another country, and is approved for operation in the United States. Pursuant to our bilateral agreement with the State of Design Authority, we have been notified of the unsafe condition described in the MCAI and service information referenced above. We are issuing this AD because we evaluated all pertinent information and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. Requirements of This AD This AD requires accomplishing the actions specified in the service information described previously. E:\FR\FM\23JYR1.SGM 23JYR1

Agencies

[Federal Register Volume 83, Number 141 (Monday, July 23, 2018)]
[Rules and Regulations]
[Pages 34758-34761]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-15668]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0590; Product Identifier 2018-NE-24-AD; Amendment 
39-19319; AD 2018-13-07]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

-----------------------------------------------------------------------

SUMMARY: We are adopting a new airworthiness directive (AD) for all 
Rolls-Royce plc (RR) Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 
1000-E, Trent 1000-G, and Trent 1000-H turbofan engine models. This AD 
requires inspecting the intermediate-pressure compressor (IPC) stage 1 
rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, 
and removing any cracked parts from service. This AD was prompted by 
crack findings on the IPC rotor blades, which could lead to separations 
resulting in engine failures. We are issuing this AD to address the 
unsafe condition on these products.

DATES: This AD is effective August 7, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of August 7, 
2018.
    We must receive comments on this AD by September 6, 2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590, between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays.
    For service information identified in this final rule, contact 
Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, 
DE24 8BJ; phone: 011-44-1332-242424; fax: 011-44-1332-249936; email: 
royce.com">[email protected]royce.com; internet: https://customers.rolls-royce.com/public/rollsroycecare. You may view this service information 
at the FAA, Engine & Propeller Standards Branch, 1200 District Avenue, 
Burlington, MA 01803. For information on the availability of this 
material at the FAA, call 781-238-7759. It is also available on the 
internet at http://www.regulations.gov by searching for and locating 
Docket No. FAA-2018-0590.

Examining the AD Docket

    You may examine the AD docket on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0590; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the mandatory continuing airworthiness information 
(MCAI), the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations (phone: 800-647-
5527) is listed above. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aerospace Engineer, 
ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 
781-238-7088; fax: 781-238-7199; email: [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European

[[Page 34759]]

Community, has issued EASA AD 2018-0128, dated June 12, 2018 (referred 
to hereinafter as ``the MCAI''), to address an unsafe condition for the 
specified products. The MCAI states:

    Occurrences were reported on RR Trent 1000 `Pack B' engines, 
where some IPC Rotor 1 and Rotor 2 blades were found cracked.
    This condition, if not detected and corrected, could lead to in-
flight blade release, possibly resulting in reduced control of the 
aeroplane.
    To address this potential unsafe condition, RR issued the NMSB 
and the applicable NMSB to provide instructions to inspect IPC Rotor 
1 blades, IPC Rotor 2 blades (front and rear face) and IPC shaft 
Stage 2 dovetail posts.
    For the reason described above, this [EASA] AD requires a one-
time inspection of the affected parts and, depending on the 
findings, accomplishment of applicable corrective action(s).

    You may obtain further information by examining the MCAI in the AD 
docket on the internet at http://www.regulations.gov by searching for 
and locating Docket No. FAA-2018-0590.

Related Service Information Under 1 CFR Part 51

    We reviewed RR Alert Non-Modification Service Bulletin (NMSB) Trent 
1000 72-AK130, Initial Issue, dated June 11, 2018. The NMSB describes 
procedures for performing a one-time inspection of the IPC stage 1 
rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, 
and lists engine serial numbers. This service information is reasonably 
available because the interested parties have access to it through 
their normal course of business or by the means identified in the 
ADDRESSES section.

Other Related Service Information

    We reviewed RR NMSB Trent 1000 72-K099, Initial Issue, dated June 
11, 2018; RR NMSB Trent 1000 72-K100, Initial Issue, dated June 11, 
2018; and RR NMSB Trent 1000 72-K129, Initial Issue, dated June 11, 
2018. RR NMSB Trent 1000 72-K099 describes procedures for an ultrasonic 
inspection of the IPC stage 1 rotor blades. RR NMSB Trent 1000 72-K100 
describes procedures for a visual borescope inspection of the IPC stage 
2 rotor blades and IPC stage 2 dovetail posts. RR NMSB Trent 1000 72-
K129 describes procedures for an ultrasonic inspection of the IPC stage 
2 rotor blades.

FAA's Determination

    This product has been approved by EASA and is approved for 
operation in the United States. Pursuant to our bilateral agreement 
with the European Community, EASA has notified us of the unsafe 
condition described in the MCAI and service information referenced 
above. We are issuing this AD because we evaluated all the relevant 
information provided by EASA and determined the unsafe condition 
described previously is likely to exist or develop in other products of 
the same type design.

AD Requirements

    This AD requires inspecting the IPC stage 1 rotor blades, IPC stage 
2 rotor blades, and IPC stage 2 dovetail posts, and removing any 
cracked parts from service.

FAA's Justification and Determination of the Effective Date

    No domestic operators use this product. Therefore, we find good 
cause that notice and opportunity for prior public comment are 
unnecessary. In addition, for the reason stated above, we find that 
good cause exists for making this amendment effective in less than 30 
days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety and was not preceded by notice and an opportunity for public 
comment. However, we invite you to send any written data, views, or 
arguments about this final rule. Send your comments to an address 
listed under the ADDRESSES section. Include the docket number FAA-2018-
0590 and Product Identifier 2018-NE-24-AD at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this final rule. We will 
consider all comments received by the closing date and may amend this 
final rule because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this final rule.

Costs of Compliance

    We estimate that this AD affects 0 engines installed on airplanes 
of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Inspect IPC blades and dovetail post..  20 work-hours x $85 per               $0          $1,700              $0
                                         hour = $1,700.
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. ``Subtitle VII: Aviation 
Programs,'' describes in more detail the scope of the Agency's 
authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to engines, propellers, and 
associated appliances to the Manager, Engine and Propeller Standards 
Branch, Policy and Innovation Division.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national

[[Page 34760]]

government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

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):

2018-13-07 Rolls-Royce plc: Amendment 39-19319; Docket No. FAA-2018-
0590; Product Identifier 2018-NE-24-AD.

(a) Effective Date

    This AD is effective August 7, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Rolls Royce plc (RR) Trent 1000-A, Trent 
1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H 
turbofan engine models.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7230, Turbine Engine 
Compressor Section.

(e) Unsafe Condition

    This AD was prompted by reports of intermediate-pressure 
compressor (IPC) rotor blade cracks, which could lead to separations 
resulting in engine failures. We are issuing this AD to prevent 
failure of the IPC. The unsafe condition, if not addressed, could 
result in failure of one or more engines, loss of thrust control, 
and loss of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    (1) Inspect the IPC stage 1 rotor blades, at the applicable 
compliance times specified in paragraphs (g)(1)(i), (ii), or (iii) 
after the effective date of this AD, whichever comes first:
    (i) Within 30 days for the serial number IPC modules installed 
in the referenced serial number engines listed in Group 1 in 
Appendix 1 of RR Alert Non-Modification Service Bulletin (NMSB) 
Trent 1000 72-AK130, dated June 11, 2018, using the Accomplishment 
Instructions, paragraph 3.A.(1)(a), of RR Alert NMSB Trent 1000 72-
AK130, dated June 11, 2018.
    (ii) Within 60 days for all IPC modules not listed in Group 1 in 
Appendix 1 of RR Alert NMSB Trent 1000 72-AK130, dated June 11, 
2018, using the Accomplishment Instructions, paragraph 3.A.(1)(a), 
of RR Alert NMSB Trent 1000 72-AK130, dated June 11, 2018. Those 
serial number IPC modules specifically identified in Group 2 in 
Appendix 1 of RR Alert NMSB Trent 1000 72-AK130, dated June 11, 
2018, do not require inspection.
    (iii) At the next engine shop visit, using the Accomplishment 
Instructions, paragraph 3.A.(2)(a), of RR Alert NMSB Trent 1000 72-
AK130, dated June 11, 2018.
    (2) For IPC modules with 1,000 or more flight cycles, inspect 
the IPC stage 2 rotor blades and IPC stage 2 dovetail posts within 
30 days of the effective date of this AD or at the next engine shop 
visit, whichever comes first.
    (i) For IPC stage 2 rotor blades and IPC stage 2 dovetail posts 
inspected on-wing, use Accomplishment Instructions, paragraphs 
3.B.(1)(a) and 3.C.(1)(a), of RR Alert NMSB Trent 1000 72-AK130, 
dated June 11, 2018.
    (ii) For IPC stage 2 rotor blades and IPC stage 2 dovetail posts 
inspected in shop, use Accomplishment Instructions, paragraphs 
3.B.(2)(a) and 3.C.(2)(a), of RR Alert NMSB Trent 1000 72-AK130, 
dated June 11, 2018.
    (3) For engines that are in an engine shop visit on the 
effective date of this AD, inspect IPC stage 1 rotor blades, IPC 
stage 2 rotor blades, and IPC stage 2 dovetail posts before 
returning the engine to service.
    (4) If any IPC stage 1 rotor blade, IPC stage 2 rotor blade, or 
an IPC shaft stage 2 dovetail post is found cracked during any 
inspection required by this AD, remove the part from service and 
replace the part with a part eligible for installation before 
further flight.

(h) Definition

    An ''engine shop visit'' is the induction of an engine into the 
shop for maintenance involving the separation of pairs of major 
mating engine flanges (lettered flanges). The separation of engine 
flanges solely for the purpose of transportation of the engine 
without subsequent engine maintenance does not constitute an engine 
shop visit.

(i) Special Flight Permits

    (1) Special flight permits, as described in Section 21.197 and 
Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199), are subject to the requirements of paragraph (i)(1)(i) 
of this AD.
    (i) Operators who are prohibited from further flight due to an 
IPC stage 1 rotor blade, IPC stage 2 rotor blade, or an IPC stage 2 
dovetail post being found cracked, may perform a one-time non-
revenue ferry flight to a location where the engine can be removed 
from service. This ferry flight must be performed without 
passengers, involve non-extended operations (ETOPS), and consume no 
more than three flight cycles.
    (ii) Reserved.
    (2) Reserved.

(j) 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 (k)(1) of this AD. You may email your 
request to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(k) Related Information

    (1) For more information about this AD, contact Kevin M. Clark, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email: 
[email protected].
    (2) Refer to European Aviation Safety Agency (EASA) AD 2018-
0128, dated June 12, 2018, for more information. You may examine the 
EASA AD in the AD docket on the internet at http://www.regulations.gov by searching for and locating it in Docket No. 
FAA-2018-0590.

(l) 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.
    (i) Rolls-Royce plc (RR) Alert Non-Modification Service Bulletin 
(NMSB) Trent 1000 72-AK130, Initial issue, dated June 11, 2018.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, 
England, DE24 8BJ; phone: 011-44-1332-242424; fax: 011-44-1332-
249936; email: royce.com">[email protected]royce.com; internet: https://customers.rolls-royce.com/public/rollsroycecare.
    (4) You may view this service information at FAA, Engine & 
Propeller Standards Branch, 1200 District Avenue, Burlington,

[[Page 34761]]

MA. For information on the availability of this material at the FAA, 
call 781-238-7759.
    (5) 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 July 17, 2018.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2018-15668 Filed 7-20-18; 8:45 am]
BILLING CODE 4910-13-P