83 FR 62694 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 234 (December 6, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 234 (December 6, 2018)
| Page Range | 62694-62697 | |
| FR Document | 2018-26393 |
[Federal Register Volume 83, Number 234 (Thursday, December 6, 2018)] [Rules and Regulations] [Pages 62694-62697] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-26393] [[Page 62694]] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0871; Product Identifier 2018-NE-24-AD; Amendment 39-19511; AD 2018-25-01] 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 superseding airworthiness directive (AD) 2018-13-07 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. AD 2018-13-07 required initial inspections of the intermediate-pressure compressor (IPC) stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts, and removing any cracked parts from service. This AD requires initial inspections and adds repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts, and removing any cracked parts from service. This AD was prompted by the manufacturer determining the need for repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective December 21, 2018. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of December 21, 2018. We must receive any comments on this AD by January 22, 2019. 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-2018-0871. 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- 0871; 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 AD, the mandatory continuing airworthiness information, 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 We issued AD 2018-13-07, Amendment 39-19319 (83 FR 34758, July 23, 2018), (``AD 2018-13-07''), for all RR Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H turbofan engine models. AD 2018-13-07 required inspecting the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts, and removing any cracked parts from service. AD 2018-13-07 resulted from crack findings on the IPC rotor blades and IPC shaft stage 2 dovetail posts, which could lead to rotor blade separations resulting in engine failures. We issued AD 2018-13-07 to prevent failure of the IPC, which could result in failure of one or more engines, loss of thrust control, and loss of the airplane. Actions Since AD 2018-13-07 Was Issued Since we issued AD 2018-13-07, the manufacturer determined the need for repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts. Also, since we issued AD 2018-13-07, the European Aviation Safety Agency (EASA) issued AD 2018-0167R2, dated October 16, 2018, which requires initial and repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts. We are issuing this AD to address the unsafe condition on these products. Related Service Information Under 1 CFR Part 51 We reviewed RR Alert Non-Modification Service Bulletin (NMSB) Trent 1000 72-AK130, Revision 2, dated July 26, 2018, and RR Alert NMSB Trent 1000 72-K132, dated June 29, 2018. RR Alert NMSB Trent 1000 72-AK130 describes procedures for performing initial and repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts, and lists engine serial numbers. RR Alert NMSB Trent 1000 72-K132, describes procedures for replacement of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and the IP compressor drum during refurbishment. 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-K099, Revision 1, dated July 3, 2018; RR NMSB Trent 1000 72-K100, Initial Issue, dated June 11, 2018; RR NMSB Trent 1000 72-K129, Initial Issue, dated June 11, 2018; and RR NMSB Trent 1000 72-K129, Revision 1, dated July 2, 2018. RR NMSB Trent 1000 72-K099, Initial Issue, and RR NMSB Trent 1000 72-K099, Revision 1, describe procedure for an ultrasonic inspection of the IPC stage 1 rotor blades. RR NMSB Trent 1000 72-K100 Initial Issue describes procedures for a visual borescope inspection of the IPC stage 2 rotor blades and IPC shaft stage 2 dovetail posts. RR NMSB Trent 1000 72- K129, Initial Issue, and RR NMSB Trent 1000 72-K129, Revision 1, describe procedures for an ultrasonic inspection of the IPC stage 2 rotor blades. [[Page 62695]] 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 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 initial and repetitive inspections of the IPC stage 1 rotor blades, IPC stage 2 rotor blades, and IPC shaft stage 2 dovetail posts, and removing any cracked parts from service. Differences Between This AD and the MCAI or Service Information This AD allows inspections of any affected IPC part to be completed within 15 days of the effective date of this AD. EASA AD 2018-0167R2, dated October 16, 2018, and RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018, allow certain affected IPC parts to be completed within 45 days of the effective date of EASA AD 2018-0167R1. We expect most operators to have already complied with EASA AD and find that completing the inspections within 15 days of the effective date of this AD provides an appropriate level of safety. Interim Action We consider this AD interim action. The manufacturer is still reviewing this unsafe condition and may develop follow-on actions. FAA's Justification and Determination of the Effective Date No domestic operators use this product. Therefore, we find that notice and opportunity for prior public comment are unnecessary and 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 we did not provide you with notice and an opportunity to provide your comments before it becomes effective. 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-2018-0871 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. ---------------------------------------------------------------------------------------------------------------- We estimate the following costs to do any necessary replacements that would be required based on the results of the inspection. We have no way of determining the number of aircraft that might need these replacements: On-Condition Costs ---------------------------------------------------------------------------------------------------------------- Cost per Action Labor cost Parts cost product ---------------------------------------------------------------------------------------------------------------- Replace IPC Stage 1 Rotor blade............... 0 work-hours x $85 per hour = $0 $1,528 $1,528 Replace IPC Stage 2 Rotor blade............... 0 work-hours x $85 per hour = $0 993 993 Replace IPC 1-8 drum.......................... 0 work-hours x $85 per hour = $0 1,365,219 1,365,219 ---------------------------------------------------------------------------------------------------------------- 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 government and the States, or on the distribution of power and responsibilities among the various levels of government. [[Page 62696]] For the reasons discussed above, I certify that this AD: (1) Is not a ``significant regulatory action'' under Executive Order 12866, (2) Is not a ``significant rule'' under 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 part 39 of the Federal Aviation Regulations (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 removing airworthiness directive (AD) 2018-13-07, Amendment 39-19319 (83 FR 34758, July 23, 2018), and adding the following new AD: 2018-25-01 Rolls-Royce plc: Amendment 39-19511; Docket No. FAA-2018- 0871; Product Identifier 2018-NE-24-AD. (a) Effective Date This AD is effective December 21, 2018. (b) Affected ADs This AD replaces AD 2018-13-07, Amendment 39-19319 (83 FR 34758, July 23, 2018). (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 rotor blade 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) Within 15 days of the effective date of this AD, or within the compliance times specified in Table 1 of RR Alert Non- Modification Service Bulletin (NMSB) Trent 1000 72-AK130, Revision 2, dated July 26, 2018, whichever occurs later, perform on-wing inspection of the IPC stage 1 rotor blades in accordance with paragraph 3.A.(1) of RR Alert NMSB Trent 1000 72-AK130. (2) Repeat the on-wing inspection of the IPC stage 1 rotor blades in accordance with paragraph 3.A.(1) of RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018, and within the compliance times specified in Table 1 of that NMSB. (3) Within 15 days of the effective date of this AD, or within the compliance times specified in Table 1 of RR Alert NMSB Trent 1000 72-AK130 Revision 2, dated July 26, 2018, whichever occurs later, perform on-wing inspection of the IPC stage 2 rotor blades and IPC shaft stage 2 dovetail posts in accordance with paragraph 3.B.(1) and 3.C.(1) of RR Alert NMSB Trent 1000 72-AK130. (4) Repeat the on-wing inspection of the IPC stage 2 rotor blades and IPC shaft stage 2 dovetail posts in accordance with paragraphs 3.B.(1) and 3.C.(1) of RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018, and within the compliance times specified in Table 1 of RR Alert NMSB Trent 1000 72-AK130. (5) For the on-wing inspection required by paragraphs (g)(1) through (4) of this AD, provided the stated thresholds and intervals are not exceeded, you may substitute: (i) An in-shop inspection of an engine or module performed in accordance with the instructions of paragraphs 3.A.2, 3.B.2, and 3.C.2 of the RR Alert NMSB Trent 1000 72-AK130, Revision 2, dated July 26, 2018; or (ii) an in-shop piece part inspection during refurbishment in accordance with the Accomplishment Instructions, paragraphs 3.B.(2)(f)(vi), 3.B.(2)(g)(v), and 3.B.(3)(d)(iii) of RR Trent 1000 NMSB 72-K132, dated June 29, 2018. (6) 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) Inspection After Operation Under Asymmetric Power As of the effective date of this AD, before the next flight after each occurrence where engine operation in asymmetric power conditions was sustained for more than 30 minutes at less than 25,000 feet, either resulting from engine power reduction, or from engine in-flight shut-down (IFSD), inspect the IPC stage 1 rotor blades, stage 2 rotor blades and IPC shaft stage 2 dovetail posts in accordance with the paragraphs 3.A.(1), 3.B.(1), and 3.C.(1) of the RR Alert NMSB Trent1000 72-AK130, Revision 2, dated July 26, 2018 on the engine that did not experience the power reduction or IFSD installed on the airplane. (i) Credit for Previous Actions You may take credit for the inspections required by paragraph (g)(1) and (3) of this AD if you performed these inspections before the effective date of this AD using RR Alert NMSB Trent 1000 72- AK130, Revision 1, dated June 29, 2018, or RR Alert NMSB Trent 1000 72-AK130, Initial Issue, dated June 11, 2018. (j) 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 (k)(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 shaft 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] (k) 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 (l)(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. (l) 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- 0167R2, dated October 16, 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-2018-0871. (m) 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, Revision 2, dated July 26, 2018. [[Page 62697]] (ii) RR Alert NMSB Trent 1000 72-K132, dated June 29, 2018. (3) For RR 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, MA 01803. For information on the availability of this material at the FAA, call 781-238-7759. (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. Issued in Burlington, Massachusetts, on November 28, 2018. Robert J. Ganley, Manager, Engine & Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018-26393 Filed 12-4-18; 8:45 am] BILLING CODE 4910-13-P
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DEPARTMENT OF TRANSPORTATION and 5 p.m., Monday through Friday, Actions Since AD 2018–13–07 Was
except Federal holidays. Issued
Federal Aviation Administration For service information identified in
Since we issued AD 2018–13–07, the
this final rule, contact Rolls-Royce plc,
14 CFR Part 39 Corporate Communications, P.O. Box manufacturer determined the need for
31, Derby, England, DE24 8BJ; phone: repetitive inspections of the IPC stage 1
[Docket No. FAA–2018–0871; Product
Identifier 2018–NE–24–AD; Amendment 39– 011–44–1332–242424; fax: 011–44– rotor blades, IPC stage 2 rotor blades,
19511; AD 2018–25–01] 1332–249936; email: corporate.care@ and IPC shaft stage 2 dovetail posts.
rolls-royce.com; internet: https:// Also, since we issued AD 2018–13–07,
RIN 2120–AA64 the European Aviation Safety Agency
customers.rolls-royce.com/public/
rollsroycecare. You may view this (EASA) issued AD 2018–0167R2, dated
Airworthiness Directives; Rolls-Royce
service information at the FAA, Engine October 16, 2018, which requires initial
plc Turbofan Engines
& Propeller Standards Branch, 1200 and repetitive inspections of the IPC
AGENCY: Federal Aviation District Avenue, Burlington, MA 01803. stage 1 rotor blades, IPC stage 2 rotor
Administration (FAA), DOT. For information on the availability of blades, and IPC shaft stage 2 dovetail
ACTION: Final rule; request for this material at the FAA, call 781–238– posts. We are issuing this AD to address
comments. 7759. It is also available on the internet the unsafe condition on these products.
at http://www.regulations.gov by Related Service Information Under 1
SUMMARY: We are superseding searching for and locating Docket No.
airworthiness directive (AD) 2018–13– CFR Part 51
FAA–2018–0871.
07 for all Rolls-Royce plc (RR) Trent We reviewed RR Alert Non-
1000–A, Trent 1000–C, Trent 1000–D, Examining the AD Docket
Modification Service Bulletin (NMSB)
Trent 1000–E, Trent 1000–G, and Trent You may examine the AD docket on Trent 1000 72–AK130, Revision 2, dated
1000–H turbofan engine models. AD the internet at http:// July 26, 2018, and RR Alert NMSB Trent
2018–13–07 required initial inspections www.regulations.gov by searching for 1000 72–K132, dated June 29, 2018. RR
of the intermediate-pressure compressor and locating Docket No. FAA–2018– Alert NMSB Trent 1000 72–AK130
(IPC) stage 1 rotor blades, IPC stage 2 0871; or in person at Docket Operations
rotor blades, and IPC shaft stage 2 describes procedures for performing
between 9 a.m. and 5 p.m., Monday initial and repetitive inspections of the
dovetail posts, and removing any through Friday, except Federal holidays.
cracked parts from service. This AD IPC stage 1 rotor blades, IPC stage 2
The AD docket contains this AD, the rotor blades, and IPC shaft stage 2
requires initial inspections and adds mandatory continuing airworthiness
repetitive inspections of the IPC stage 1 dovetail posts, and lists engine serial
information, regulatory evaluation, any numbers. RR Alert NMSB Trent 1000
rotor blades, IPC stage 2 rotor blades, comments received, and other
and IPC shaft stage 2 dovetail posts, and 72–K132, describes procedures for
information. The street address for replacement of the IPC stage 1 rotor
removing any cracked parts from Docket Operations (phone: 800–647–
service. This AD was prompted by the blades, IPC stage 2 rotor blades, and the
5527) is listed above. Comments will be IP compressor drum during
manufacturer determining the need for available in the AD docket shortly after
repetitive inspections of the IPC stage 1 refurbishment. This service information
receipt. is reasonably available because the
rotor blades, IPC stage 2 rotor blades,
and IPC shaft stage 2 dovetail posts. We FOR FURTHER INFORMATION CONTACT: interested parties have access to it
are issuing this AD to address the unsafe Kevin M. Clark, Aerospace Engineer, through their normal course of business
condition on these products. ECO Branch, FAA, 1200 District or by the means identified in the
Avenue, Burlington, MA 01803; phone: ADDRESSES section.
DATES: This AD is effective December
21, 2018. 781–238–7088; fax: 781–238–7199;
email: kevin.m.clark@faa.gov. Other Related Service Information
The Director of the Federal Register
approved the incorporation by reference SUPPLEMENTARY INFORMATION: We reviewed RR NMSB Trent 1000
of a certain publication listed in this AD 72–K099, Initial Issue, dated June 11,
Discussion 2018; RR NMSB Trent 1000 72–K099,
as of December 21, 2018.
We must receive any comments on We issued AD 2018–13–07, Revision 1, dated July 3, 2018; RR
this AD by January 22, 2019. Amendment 39–19319 (83 FR 34758, NMSB Trent 1000 72–K100, Initial
ADDRESSES: You may send comments, July 23, 2018), (‘‘AD 2018–13–07’’), for Issue, dated June 11, 2018; RR NMSB
using the procedures found in 14 CFR all RR Trent 1000–A, Trent 1000–C, Trent 1000 72–K129, Initial Issue, dated
11.43 and 11.45, by any of the following Trent 1000–D, Trent 1000–E, Trent June 11, 2018; and RR NMSB Trent 1000
methods: 1000–G, and Trent 1000–H turbofan 72–K129, Revision 1, dated July 2, 2018.
• Federal eRulemaking Portal: Go to engine models. AD 2018–13–07 RR NMSB Trent 1000 72–K099, Initial
http://www.regulations.gov. Follow the required inspecting the IPC stage 1 rotor Issue, and RR NMSB Trent 1000 72–
instructions for submitting comments. blades, IPC stage 2 rotor blades, and IPC K099, Revision 1, describe procedure for
• Fax: 202–493–2251. shaft stage 2 dovetail posts, and an ultrasonic inspection of the IPC stage
• Mail: U.S. Department of removing any cracked parts from 1 rotor blades. RR NMSB Trent 1000 72–
Transportation, Docket Operations, M– service. AD 2018–13–07 resulted from K100 Initial Issue describes procedures
30, West Building Ground Floor, Room crack findings on the IPC rotor blades for a visual borescope inspection of the
khammond on DSK30JT082PROD with RULES
W12–140, 1200 New Jersey Avenue SE, and IPC shaft stage 2 dovetail posts, IPC stage 2 rotor blades and IPC shaft
Washington, DC 20590. which could lead to rotor blade stage 2 dovetail posts. RR NMSB Trent
• Hand Delivery: U.S. Department of separations resulting in engine failures. 1000 72–K129, Initial Issue, and RR
Transportation, Docket Operations, M– We issued AD 2018–13–07 to prevent NMSB Trent 1000 72–K129, Revision 1,
30, West Building Ground Floor, Room failure of the IPC, which could result in describe procedures for an ultrasonic
W12–140, 1200 New Jersey Avenue SE, failure of one or more engines, loss of inspection of the IPC stage 2 rotor
Washington, DC 20590, between 9 a.m. thrust control, and loss of the airplane. blades.
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For the reasons discussed above, I (f) Compliance (i) Credit for Previous Actions
certify that this AD: Comply with this AD within the You may take credit for the inspections
(1) Is not a ‘‘significant regulatory compliance times specified, unless already required by paragraph (g)(1) and (3) of this
action’’ under Executive Order 12866, done. AD if you performed these inspections before
(2) Is not a ‘‘significant rule’’ under the effective date of this AD using RR Alert
(g) Required Actions NMSB Trent 1000 72–AK130, Revision 1,
DOT Regulatory Policies and Procedures
(1) Within 15 days of the effective date of dated June 29, 2018, or RR Alert NMSB Trent
(44 FR 11034, February 26, 1979), this AD, or within the compliance times 1000 72–AK130, Initial Issue, dated June 11,
(3) Will not affect intrastate aviation specified in Table 1 of RR Alert Non- 2018.
in Alaska, and Modification Service Bulletin (NMSB) Trent
(4) Will not have a significant 1000 72–AK130, Revision 2, dated July 26, (j) Special Flight Permits
economic impact, positive or negative, 2018, whichever occurs later, perform on- (1) Special flight permits, as described in
on a substantial number of small entities wing inspection of the IPC stage 1 rotor Section 21.197 and Section 21.199 of the
under the criteria of the Regulatory blades in accordance with paragraph 3.A.(1) Federal Aviation Regulations (14 CFR 21.197
Flexibility Act. of RR Alert NMSB Trent 1000 72–AK130. and 21.199), are subject to the requirements
(2) Repeat the on-wing inspection of the of paragraph (k)(1)(i) of this AD.
List of Subjects in 14 CFR Part 39 IPC stage 1 rotor blades in accordance with (i) Operators who are prohibited from
paragraph 3.A.(1) of RR Alert NMSB Trent further flight due to an IPC stage 1 rotor
Air transportation, Aircraft, Aviation
1000 72–AK130, Revision 2, dated July 26, blade, IPC stage 2 rotor blade, or an IPC shaft
safety, Incorporation by reference, 2018, and within the compliance times stage 2 dovetail post being found cracked,
Safety. specified in Table 1 of that NMSB. may perform a one-time non-revenue ferry
Adoption of the Amendment (3) Within 15 days of the effective date of flight to a location where the engine can be
this AD, or within the compliance times removed from service. This ferry flight must
Accordingly, under the authority specified in Table 1 of RR Alert NMSB Trent be performed without passengers, involve
delegated to me by the Administrator, 1000 72–AK130 Revision 2, dated July 26, non-extended operations (ETOPS), and
the FAA amends part 39 of the Federal 2018, whichever occurs later, perform on- consume no more than three flight cycles.
Aviation Regulations (14 CFR part 39) as wing inspection of the IPC stage 2 rotor (ii) [Reserved]
blades and IPC shaft stage 2 dovetail posts in (2) [Reserved]
follows:
accordance with paragraph 3.B.(1) and 3.C.(1)
of RR Alert NMSB Trent 1000 72–AK130. (k) Alternative Methods of Compliance
PART 39—AIRWORTHINESS (AMOCs)
(4) Repeat the on-wing inspection of the
DIRECTIVES IPC stage 2 rotor blades and IPC shaft stage (1) The Manager, ECO Branch, FAA, has
2 dovetail posts in accordance with the authority to approve AMOCs for this AD,
■ 1. The authority citation for part 39 paragraphs 3.B.(1) and 3.C.(1) of RR Alert if requested using the procedures found in 14
continues to read as follows: NMSB Trent 1000 72–AK130, Revision 2, CFR 39.19. In accordance with 14 CFR 39.19,
Authority: 49 U.S.C. 106(g), 40113, 44701. dated July 26, 2018, and within the send your request to your principal inspector
compliance times specified in Table 1 of RR or local Flight Standards District Office, as
§ 39.13 [Amended] Alert NMSB Trent 1000 72–AK130. appropriate. If sending information directly
(5) For the on-wing inspection required by to the manager of the certification office,
■ 2. The FAA amends § 39.13 by
paragraphs (g)(1) through (4) of this AD, send it to the attention of the person
removing airworthiness directive (AD) provided the stated thresholds and intervals identified in paragraph (l)(1) of this AD. You
2018–13–07, Amendment 39–19319 (83 are not exceeded, you may substitute: may email your request to: ANE-AD-AMOC@
FR 34758, July 23, 2018), and adding the (i) An in-shop inspection of an engine or faa.gov.
following new AD: module performed in accordance with the (2) Before using any approved AMOC,
instructions of paragraphs 3.A.2, 3.B.2, and notify your appropriate principal inspector,
2018–25–01 Rolls-Royce plc: Amendment
3.C.2 of the RR Alert NMSB Trent 1000 72– or lacking a principal inspector, the manager
39–19511; Docket No. FAA–2018–0871;
AK130, Revision 2, dated July 26, 2018; or of the local flight standards district office/
Product Identifier 2018–NE–24–AD.
(ii) an in-shop piece part inspection during certificate holding district office.
(a) Effective Date refurbishment in accordance with the
Accomplishment Instructions, paragraphs (l) Related Information
This AD is effective December 21, 2018.
3.B.(2)(f)(vi), 3.B.(2)(g)(v), and 3.B.(3)(d)(iii) (1) For more information about this AD,
(b) Affected ADs of RR Trent 1000 NMSB 72–K132, dated June contact Kevin M. Clark, Aerospace Engineer,
This AD replaces AD 2018–13–07, 29, 2018. ECO Branch, FAA, 1200 District Avenue,
Amendment 39–19319 (83 FR 34758, July 23, (6) If any IPC stage 1 rotor blade, IPC stage Burlington, MA 01803; phone: 781–238–
2018). 2 rotor blade, or an IPC shaft stage 2 dovetail 7088; fax: 781–238–7199; email:
post is found cracked during any inspection kevin.m.clark@faa.gov.
(c) Applicability required by this AD, remove the part from (2) Refer to European Aviation Safety
This AD applies to all Rolls Royce plc (RR) service and replace the part with a part Agency (EASA) AD 2018–0167R2, dated
Trent 1000–A, Trent 1000–C, Trent 1000–D, eligible for installation before further flight. October 16, 2018, for more information. You
Trent 1000–E, Trent 1000–G, and Trent may examine the EASA AD in the AD docket
(h) Inspection After Operation Under on the internet at http://www.regulations.gov
1000–H turbofan engine models.
Asymmetric Power by searching for and locating it in Docket No.
(d) Subject As of the effective date of this AD, before FAA–2018–0871.
Joint Aircraft System Component (JASC) the next flight after each occurrence where
engine operation in asymmetric power (m) Material Incorporated by Reference
Code 7230, Turbine Engine Compressor
Section. conditions was sustained for more than 30 (1) The Director of the Federal Register
minutes at less than 25,000 feet, either approved the incorporation by reference
(e) Unsafe Condition resulting from engine power reduction, or (IBR) of the service information listed in this
This AD was prompted by reports of from engine in-flight shut-down (IFSD), paragraph under 5 U.S.C. 552(a) and 1 CFR
khammond on DSK30JT082PROD with RULES
intermediate-pressure compressor (IPC) rotor inspect the IPC stage 1 rotor blades, stage 2 part 51.
blade cracks, which could lead to rotor blade rotor blades and IPC shaft stage 2 dovetail (2) You must use this service information
separations resulting in engine failures. We posts in accordance with the paragraphs as applicable to do the actions required by
are issuing this AD to prevent failure of the 3.A.(1), 3.B.(1), and 3.C.(1) of the RR Alert this AD, unless the AD specifies otherwise.
IPC. The unsafe condition, if not addressed, NMSB Trent1000 72–AK130, Revision 2, (i) Rolls-Royce plc (RR) Alert Non-
could result in failure of one or more engines, dated July 26, 2018 on the engine that did not Modification Service Bulletin (NMSB) Trent
loss of thrust control, and loss of the experience the power reduction or IFSD 1000 72–AK130, Revision 2, dated July 26,
airplane. installed on the airplane. 2018.
VerDate Sep<11>2014 16:05 Dec 04, 2018 Jkt 247001 PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 E:\FR\FM\06DER1.SGM 06DER1](https://thefederalregister.org/doc/83_FR_62928/page/3.svg)
![Federal Register / Vol. 83, No. 234 / Thursday, December 6, 2018 / Rules and Regulations 62697
(ii) RR Alert NMSB Trent 1000 72–K132, DATES: This AD is effective December nose-down trim commands of the
dated June 29, 2018. 21, 2018 to all persons except those horizontal stabilizer. This condition, if
(3) For RR service information identified in persons to whom it was made not addressed, could cause the flight
this AD, contact Rolls-Royce plc, Corporate
Communications, P.O. Box 31, Derby,
immediately effective by Emergency AD crew to have difficulty controlling the
England, DE24 8BJ; phone: 011–44–1332– 2018–23–51, issued on November 7, airplane, and lead to excessive nose-
242424; fax: 011–44–1332–249936; email: 2018, which contained the requirements down attitude, significant altitude loss,
corporate.care@rolls-royce.com; internet: of this amendment. and possible impact with terrain.
https://customers.rolls-royce.com/public/ We must receive comments on this
rollsroycecare. FAA’s Determination
AD by January 22, 2019.
(4) You may view this service information We are issuing this AD because we
ADDRESSES: You may send comments,
at FAA, Engine & Propeller Standards evaluated all the relevant information
Branch, 1200 District Avenue, Burlington, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following and determined the unsafe condition
MA 01803. For information on the
methods: described previously is likely to exist or
availability of this material at the FAA, call
781–238–7759. • Federal eRulemaking Portal: Go to develop in other products of the same
(5) You may view this service information http://www.regulations.gov. Follow the type design.
at the National Archives and Records instructions for submitting comments. AD Requirements
Administration (NARA). For information on • Fax: 202–493–2251.
the availability of this material at NARA, call • Mail: U.S. Department of This AD requires revising certificate
202–741–6030, or go to: http://
Transportation, Docket Operations, M– limitations and operating procedures of
www.archives.gov/federal-register/cfr/ibr- the AFM to provide the flight crew with
locations.html. 30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE, runaway horizontal stabilizer trim
Issued in Burlington, Massachusetts, on Washington, DC 20590. procedures to follow under certain
November 28, 2018. conditions.
• Hand Delivery: Deliver to Mail
Robert J. Ganley, address above between 9 a.m. and 5 Interim Action
Manager, Engine & Propeller Standards p.m., Monday through Friday, except
Branch, Aircraft Certification Service. We consider this AD interim action. If
Federal holidays. final action is later identified, we might
[FR Doc. 2018–26393 Filed 12–4–18; 8:45 am]
BILLING CODE 4910–13–P Examining the AD Docket consider further rulemaking then.
You may examine the AD docket on FAA’s Determination of the Effective
the internet at http:// Date
DEPARTMENT OF TRANSPORTATION www.regulations.gov by searching for An unsafe condition exists that
and locating Docket No. FAA–2018– requires the immediate adoption of
Federal Aviation Administration
0960; or in person at Docket Operations Emergency AD 2018–23–51, issued on
between 9 a.m. and 5 p.m., Monday November 7, 2018, to all known U.S.
14 CFR Part 39
through Friday, except Federal holidays. owners and operators of these airplanes.
[Docket No. FAA–2018–0960; Product The AD docket contains this final rule, The FAA found that the risk to the
Identifier 2018–NM–151–AD; Amendment the regulatory evaluation, any
39–19512; AD 2018–23–51] flying public justified waiving notice
comments received, and other and comment prior to adoption of this
RIN 2120–AA64 information. The street address for rule because an erroneously high single
Docket Operations (phone: 800–647– AOA sensor input received by the flight
Airworthiness Directives; The Boeing 5527) is in the ADDRESSES section. control system can result in a potential
Company Airplanes Comments will be available in the AD for repeated nose-down trim commands
docket shortly after receipt. of the horizontal stabilizer, which could
AGENCY: Federal Aviation
Administration (FAA), DOT. FOR FURTHER INFORMATION CONTACT: cause the flight crew to have difficulty
ACTION: Final rule; request for
Douglas Tsuji, Senior Aerospace controlling the airplane, and lead to
comments. Engineer, Systems and Equipment excessive nose-down attitude,
Section, FAA, Seattle ACO Branch, 2200 significant altitude loss, and possible
SUMMARY: We are adopting a new South 216th St., Des Moines, WA 98198; impact with terrain. These conditions
airworthiness directive (AD) for all The phone and fax: 206–231–3548; email: still exist and the AD is hereby
Boeing Company Model 737–8 and –9 Douglas.Tsuji@faa.gov. published in the Federal Register as an
airplanes. This emergency AD was sent SUPPLEMENTARY INFORMATION: amendment to section 39.13 of the
previously to all known U.S. owners Federal Aviation Regulations (14 CFR
and operators of these airplanes. This Discussion
39.13) to make it effective to all persons.
AD requires revising certificate On November 7, 2018, we issued Therefore, we find good cause that
limitations and operating procedures of Emergency AD 2018–23–51, which notice and opportunity for prior public
the airplane flight manual (AFM) to requires revising certificate limitations comment are impracticable. In addition,
provide the flight crew with runaway and operating procedures of the AFM to for the reason(s) stated above, we find
horizontal stabilizer trim procedures to provide the flight crew with runaway that good cause exists for making this
follow under certain conditions. This horizontal stabilizer trim procedures to amendment effective in less than 30
AD was prompted by analysis follow under certain conditions. This days.
performed by the manufacturer showing emergency AD was sent previously to
khammond on DSK30JT082PROD with RULES
that if an erroneously high single angle all known U.S. owners and operators of Comments Invited
of attack (AOA) sensor input is received these airplanes. This action was This AD is a final rule that involves
by the flight control system, there is a prompted by analysis performed by the requirements affecting flight safety and
potential for repeated nose-down trim manufacturer showing that if an was not preceded by notice and an
commands of the horizontal stabilizer. erroneously high single AOA sensor opportunity for public comment.
We are issuing this AD to address the input is received by the flight control However, we invite you to send any
unsafe condition on these products. system, there is a potential for repeated written data, views, or arguments about
VerDate Sep<11>2014 16:05 Dec 04, 2018 Jkt 247001 PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 E:\FR\FM\06DER1.SGM 06DER1](https://thefederalregister.org/doc/83_FR_62928/page/4.svg)
Document Created: 2018-12-05 02:35:27
Document Modified: 2018-12-05 02:35:27
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Rules and Regulations | |
| Action | Final rule; request for comments. | |
| Dates | This AD is effective December 21, 2018. | |
| 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] | |
| FR Citation | 83 FR 62694 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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