83 FR 34755 - Airworthiness Directives; Rolls-Royce plc Turbofan Engines
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 141 (July 23, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 141 (July 23, 2018)
| Page Range | 34755-34758 | |
| FR Document | 2018-15649 |
[Federal Register Volume 83, Number 141 (Monday, July 23, 2018)] [Rules and Regulations] [Pages 34755-34758] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-15649] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2017-1237; Product Identifier 2017-NE-43-AD; Amendment 39-19333; AD 2018-15-01] 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 adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, Trent 1000-H, Trent 1000-A2, Trent 1000-C2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 engine models. This AD requires certain engines susceptible to intermediate-pressure turbine (IPT) blade failure not be installed on an airplane together with other engines with IPT blades of the same age. This AD was prompted by new operating restrictions for engines with IPT blades susceptible to shank corrosion and possible blade separation. 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 certain publications 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. [[Page 34756]] 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: http://www.rolls-royce.com/contact/civil_team.jsp; internet: https://customers.rolls-royce.com/public/rollsroycecare. You may view this service information at the 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. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-1237. 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-2017- 1237; 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 address for the 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 Community, has issued EASA AD 2018-0086, dated April 17, 2018 (referred to hereinafter as ``the MCAI''), to correct an unsafe condition for the specified products. The MCAI states: An occurrence was reported where, following N2 vibration and multiple messages, the flight crew performed an engine in-flight shut-down (IFSD) and returned to the departure airport, landing uneventfully. The post-flight borescope inspection of the engine revealed an intermediate pressure turbine blade (IPTB) missing at the shank. Analysis shows that this kind of failure is due to sulphidation corrosion cracking. This condition, if not detected and corrected, could lead to IPTB shank release, possibly resulting in an IFSD and consequent reduced control of the aeroplane. To address this potential unsafe condition, RR issued Alert NMSB Trent 1000 72-AJ575 to provide instructions for engine removal from service when any IPTB with a high level of sulphidation exposure is identified by corrosion fatigue life (CFL) model. Consequently, EASA issued AD 2017-0056 to require removal from service of certain engines, to be corrected in shop. Since that AD was issued, prompted by further occurrences and analyses, it has been decided that, to reduce the risk of dual IFSD, a new cyclic life limit must be applied to certain engines, which determines when an engine can no longer be installed on an aeroplane in combination with certain other engines. RR published the original issue of the NMSB to provide de-pairing instructions, including the relevant IPTB cyclic limit for each engine. Consequently, EASA issued Emergency AD 2017-0253-E to require de-pairing of the affected engines. Since that AD was issued, RR issued Revision 2 of the NMSB, which removes and adds certain ESN from the list of affected engines and introduces another IPTB cyclic limit. For the reason described above, this [EASA] AD retains the requirements of EASA AD 2017-0253-E, which is superseded, amends the Applicability, and requires application of the new limit. 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-2017-1237. Related Service Information Under 1 CFR Part 51 We reviewed RR Alert Non-Modification Service Bulletin (NMSB) Trent 1000-72-AJ992, Revision 1, dated January 3, 2018, and Revision 2, dated April 16, 2018; and RR Service Bulletin (SB) Trent 1000 72-H818, dated November 14, 2016. Alert NMSB Trent 1000-72-AJ992 defines operating restrictions for de-pairing certain engines before an IPT blade cyclic life. Revisions 1 and 2 of this NMSB differ by identifying different engine serial numbers that are affected by the respective NMSBs. RR SB Trent 1000 72-H818 introduces a new IPT blade less susceptible to shank corrosion and exempt from this AD. 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-J442, Revision 1, dated February 21, 2018; and initial issue, dated September 21, 2016; and RR NMSB Trent 1000 72-J465, Revision 2, dated February 28, 2018; Revision 1, dated January 10, 2017; and initial issue, dated December 22, 2016. RR NMSBs Trent 1000 72-J442 and Trent 1000 72-J465 describe procedures for refurbishing an engine with either serviceable used or new IPT blades, and also the cleaning and inspection requirements for the reuse of IPT 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 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 removal of one engine from an airplane before both engines exceed their respective IPT blade operating restrictions. FAA's Justification and Determination of the Effective Date No domestic operators are affected by this regulatory action. Therefore, we find good cause that notice and opportunity for prior public comment are unneccessary. 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 ``Docket No. FAA-2017-1237'' and Product Identifier ``2017-NE-43-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. [[Page 34757]] 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 ---------------------------------------------------------------------------------------------------------------- Time-Staggering of selected Trent 1000 48 work-hours x $85 per $0 $4,080 $0 engines on B787. hour = $4,080. ---------------------------------------------------------------------------------------------------------------- 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. 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): 2018-15-01 Rolls-Royce plc: Amendment 39-19333; Docket No. FAA-2017- 1237; Product Identifier 2017-NE-43-AD. (a) Effective Date This AD is effective August 7, 2018. (b) Affected ADs None. (c) Applicability This AD applies to Rolls-Royce plc (RR) Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, Trent 1000-H, Trent 1000-A2, Trent 1000-C2, Trent 1000-D2, Trent 1000-E2, Trent 1000-G2, Trent 1000-H2, Trent 1000-J2, Trent 1000-K2, and Trent 1000-L2 engine models with engine serial numbers identified in Appendix 1, Table 1, of RR Alert Non-Modification Service Bulletin (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, except those that have incorporated RR Service Bulletin (SB) Trent 1000 72-H818, dated November 14, 2016. (d) Subject Joint Aircraft System Component (JASC) 7250, Turbine Engine, Turbine Section. (e) Unsafe Condition This AD was prompted by operating restrictions that have been defined for certain engines with intermediate-pressure turbine (IPT) blades susceptible to shank corrosion and possible blade separation. These restrictions define when an engine can no longer be installed on an airplane together with other engines susceptible to the same failure. We are issuing this AD to prevent the simultaneous failure of both engines. This unsafe condition, if not addressed, could result in a dual engine in-flight shutdown and loss of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions After the effective date of this AD, for any affected engine identified 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, installed with another affected engine, listed in the same table, on the same airplane, remove one of the engines from the airplane before both engines exceed their respective IPT blade cyclic life limit identified in Appendix 1, Table 1, of the respective NMSB, or within 20 flight cycles, whichever occurs later. (h) Installation Prohibition (1) Engines listed in each group 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 Alert NMSB Trent 1000 72-AJ992, Revision 2, dated April 16, 2018, are not to be installed on an airplane together with an engine listed in a different group in the same table once they have exceeded their IPT blade cyclic life limit identified in Appendix 1, Table 1 of the respective NMSB. [[Page 34758]] (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. (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 Non-Modification 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, 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.rolls-royce.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/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. 2018-15649 Filed 7-20-18; 8:45 am] BILLING CODE 4910-13-P
![Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations 34755
(c) Applicability (3) An AMOC that provides an acceptable Issued in Des Moines, Washington, on July
This AD applies to The Boeing Company level of safety may be used for any repair, 13, 2018.
Model 787 series airplanes, certificated in modification, or alteration required by this Michael Kaszycki,
any category, powered by Rolls Royce Trent AD if it is approved by the Boeing Acting Director, System Oversight Division,
1000 engines. Commercial Airplanes Organization Aircraft Certification Service.
Designation Authorization (ODA) that has
(d) Subject [FR Doc. 2018–15535 Filed 7–20–18; 8:45 am]
been authorized by the Manager, Seattle ACO
Air Transport Association (ATA) of Branch, FAA, to make those findings. To be BILLING CODE 4910–13–P
America Code 78, Engine Exhaust System. approved, the repair method, modification
(e) Unsafe Condition deviation, or alteration deviation must meet
the certification basis of the airplane, and the DEPARTMENT OF TRANSPORTATION
This AD was prompted by reports of approval must specifically refer to this AD.
failures of the inner fixed structure (IFS) (4) For service information that contains Federal Aviation Administration
forward upper fire seal and damage to steps that are labeled as RC, the provisions
thermal insulation blankets in the forward of paragraphs (i)(4)(i) and (i)(4)(ii) of this AD 14 CFR Part 39
upper area of the thrust reverser (TR). We are
apply.
issuing this AD to prevent failure of the IFS [Docket No. FAA–2017–1237; Product
(i) The steps labeled as RC, including
forward upper fire seal, which causes the loss Identifier 2017–NE–43–AD; Amendment 39–
substeps under an RC step and any figures
of seal pressurization and allows fan bypass 19333; AD 2018–15–01]
air to enter the engine core compartment. Fan identified in an RC step, must be done to
bypass air entering the engine core comply with the AD. If a step or substep is RIN 2120–AA64
compartment could degrade the ability to labeled ‘‘RC Exempt,’’ then the RC
detect and extinguish an engine fire, requirement is removed from that step or Airworthiness Directives; Rolls-Royce
resulting in an uncontrolled fire. substep. An AMOC is required for any plc Turbofan Engines
Furthermore, fan bypass air entering the deviations to RC steps, including substeps
engine core compartment could cause and identified figures. AGENCY: Federal Aviation
damage to the TR insulation blanket, (ii) Steps not labeled as RC may be Administration (FAA), DOT.
resulting in thermal damage to the TR inner deviated from using accepted methods in ACTION: Final rule; request for
wall, the subsequent release of engine accordance with the operator’s maintenance
comments.
exhaust components, and consequent damage or inspection program without obtaining
to critical areas of the airplane. approval of an AMOC, provided the RC steps, SUMMARY: We are adopting a new
including substeps and identified figures, can
(f) Compliance airworthiness directive (AD) for certain
still be done as specified, and the airplane
Comply with this AD within the can be put back in an airworthy condition. Rolls-Royce plc (RR) Trent 1000–A,
compliance times specified, unless already Trent 1000–C, Trent 1000–D, Trent
done. (j) Related Information 1000–E, Trent 1000–G, Trent 1000–H,
For more information about this AD, Trent 1000–A2, Trent 1000–C2, Trent
(g) Required Actions contact Tak Kobayashi, Aerospace Engineer, 1000–D2, Trent 1000–E2, Trent 1000–
For Model 787–8 and 787–9 series Propulsion Section, FAA, Seattle ACO G2, Trent 1000–H2, Trent 1000–J2,
airplanes identified in Boeing Alert Service Branch, 2200 South 216th St., Des Moines, Trent 1000–K2, and Trent 1000–L2
Bulletin B787–81205–SB780033–00, Issue WA 98198; phone: 206–231–3553; email:
001, dated November 1, 2017 (‘‘BASB B787–
engine models. This AD requires certain
Takahisa.Kobayashi@faa.gov.
81205–SB780033–00, Issue 001’’): Within 36 engines susceptible to intermediate-
months after the effective date of this AD, do (k) Material Incorporated by Reference pressure turbine (IPT) blade failure not
all applicable actions identified as ‘‘RC’’ (1) The Director of the Federal Register be installed on an airplane together with
(required for compliance) in, and in approved the incorporation by reference other engines with IPT blades of the
accordance with, the Accomplishment (IBR) of the service information listed in this same age. This AD was prompted by
Instructions of BASB B787–81205– paragraph under 5 U.S.C. 552(a) and 1 CFR new operating restrictions for engines
SB780033–00, Issue 001. part 51. with IPT blades susceptible to shank
(h) Parts Installation Prohibition (2) You must use this service information corrosion and possible blade separation.
as applicable to do the actions required by We are issuing this AD to address the
For Model 787 series airplanes powered by this AD, unless the AD specifies otherwise.
Rolls Royce Trent 1000 engines, as of the (i) Boeing Alert Service Bulletin B787–
unsafe condition on these products.
effective date of this AD, no person may 81205–SB780033–00, Issue 001, dated DATES: This AD is effective August 7,
install a thrust reverser with an IFS forward November 1, 2017. 2018.
upper fire seal having part number (P/N) (ii) Reserved. The Director of the Federal Register
725Z3171–127 or P/N 725Z3171–128.
(3) For service information identified in approved the incorporation by reference
(i) Alternative Methods of Compliance this AD, contact Boeing Commercial of certain publications listed in this AD
(AMOCs) Airplanes, Attention: Contractual & Data as of August 7, 2018.
(1) The Manager, Seattle ACO Branch, Services (C&DS), 2600 Westminster Blvd., We must receive comments on this
FAA, has the authority to approve AMOCs MC 110 SK57, Seal Beach, CA 90740–5600;
telephone 562–797–1717; internet https://
AD by September 6, 2018.
for this AD, if requested using the procedures
www.myboeingfleet.com. ADDRESSES: You may send comments,
found in 14 CFR 39.19. In accordance with
14 CFR 39.19, send your request to your (4) You may view this service information using the procedures found in 14 CFR
principal inspector or local Flight Standards at the FAA, Transport Standards Branch, 11.43 and 11.45, by any of the following
District Office, as appropriate. If sending 2200 South 216th St., Des Moines, WA. For methods:
information directly to the manager of the information on the availability of this • Federal eRulemaking Portal: Go to
certification office, send it to the attention of material at the FAA, call 206–231–3195. http://www.regulations.gov. Follow the
the person identified in paragraph (j) of this (5) You may view this service information
instructions for submitting comments.
amozie on DSK3GDR082PROD with RULES
AD. Information may be emailed to: 9-ANM- that is incorporated by reference at the
National Archives and Records
• Fax: 202–493–2251.
Seattle-ACO-AMOC-Requests@faa.gov.
(2) Before using any approved AMOC, Administration (NARA). For information on • Mail: U.S. Department of
notify your appropriate principal inspector, the availability of this material at NARA, call Transportation, Docket Operations,
or lacking a principal inspector, the manager 202–741–6030, or go to: http:// M–30, West Building Ground Floor,
of the local flight standards district office/ www.archives.gov/federal-register/cfr/ibr- Room W12–140, 1200 New Jersey
certificate holding district office. locations.html. Avenue SE, Washington, DC 20590.
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![34756 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations
• Hand Delivery: U.S. Department of missing at the shank. Analysis shows that Other Related Service Information
Transportation, Docket Operations, this kind of failure is due to sulphidation
corrosion cracking. We reviewed RR NMSB Trent 1000
M–30, West Building Ground Floor, 72–J442, Revision 1, dated February 21,
Room W12–140, 1200 New Jersey This condition, if not detected and
corrected, could lead to IPTB shank release, 2018; and initial issue, dated September
Avenue SE, Washington, DC 20590, 21, 2016; and RR NMSB Trent 1000 72–
possibly resulting in an IFSD and consequent
between 9 a.m. and 5 p.m., Monday J465, Revision 2, dated February 28,
reduced control of the aeroplane.
through Friday, except Federal holidays. To address this potential unsafe condition, 2018; Revision 1, dated January 10,
For service information identified in RR issued Alert NMSB Trent 1000 72–AJ575 2017; and initial issue, dated December
this final rule, contact Rolls-Royce plc, to provide instructions for engine removal 22, 2016. RR NMSBs Trent 1000 72–
Corporate Communications, P.O. Box from service when any IPTB with a high level J442 and Trent 1000 72–J465 describe
31, Derby, England, DE24 8BJ; phone: of sulphidation exposure is identified by procedures for refurbishing an engine
011–44–1332–242424; fax: 011–44– corrosion fatigue life (CFL) model. with either serviceable used or new IPT
1332–249936; email: http://www.rolls- Consequently, EASA issued AD 2017–0056
blades, and also the cleaning and
royce.com/contact/civil_team.jsp; to require removal from service of certain
inspection requirements for the reuse of
internet: https://customers.rolls- engines, to be corrected in shop.
Since that AD was issued, prompted by IPT blades.
royce.com/public/rollsroycecare. You
may view this service information at the further occurrences and analyses, it has been FAA’s Determination
FAA, Engine and Propeller Standards decided that, to reduce the risk of dual IFSD,
a new cyclic life limit must be applied to This product has been approved by
Branch, 1200 District Avenue,
certain engines, which determines when an EASA and is approved for operation in
Burlington, MA 01803. For information
engine can no longer be installed on an the United States. Pursuant to our
on the availability of this material at the
aeroplane in combination with certain other bilateral agreement with the European
FAA, call 781–238–7759. It is also engines. RR published the original issue of Community, EASA has notified us of
available on the internet at http:// the NMSB to provide de-pairing instructions, the unsafe condition described in the
www.regulations.gov by searching for including the relevant IPTB cyclic limit for MCAI and service information
and locating Docket No. FAA–2017– each engine. Consequently, EASA issued referenced above. We are issuing this
1237. Emergency AD 2017–0253–E to require de- AD because we evaluated all relevant
pairing of the affected engines.
Examining the AD Docket information and determined the unsafe
Since that AD was issued, RR issued
You may examine the AD docket on Revision 2 of the NMSB, which removes and
condition described previously is likely
the internet at http:// adds certain ESN from the list of affected to exist or develop in other products of
www.regulations.gov by searching for engines and introduces another IPTB cyclic the same type design.
and locating Docket No. FAA–2017– limit. AD Requirements
1237; or in person at Docket Operations For the reason described above, this
between 9 a.m. and 5 p.m., Monday [EASA] AD retains the requirements of EASA This AD requires removal of one
through Friday, except Federal holidays. AD 2017–0253–E, which is superseded, engine from an airplane before both
The AD docket contains this final rule, amends the Applicability, and requires engines exceed their respective IPT
the mandatory continuing airworthiness
application of the new limit. blade operating restrictions.
information (MCAI), the regulatory You may obtain further information FAA’s Justification and Determination
evaluation, any comments received, and by examining the MCAI in the AD of the Effective Date
other information. The address for the docket on the internet at http:// No domestic operators are affected by
Docket Operations (phone: 800–647– www.regulations.gov by searching for this regulatory action. Therefore, we
5527) is listed above. Comments will be and locating Docket No. FAA–2017– find good cause that notice and
available in the AD docket shortly after 1237. opportunity for prior public comment
receipt.
Related Service Information Under are unneccessary. In addition, for the
FOR FURTHER INFORMATION CONTACT:
1 CFR Part 51 reason stated above, we find that good
Kevin M. Clark, Aerospace Engineer, cause exists for making this amendment
ECO Branch, FAA, 1200 District We reviewed RR Alert Non- effective in less than 30 days.
Avenue, Burlington, MA 01803; phone: Modification Service Bulletin (NMSB)
781–238–7088; fax: 781–238–7199; Trent 1000–72–AJ992, Revision 1, dated Comments Invited
email: kevin.m.clark@faa.gov. January 3, 2018, and Revision 2, dated This AD is a final rule that involves
SUPPLEMENTARY INFORMATION: April 16, 2018; and RR Service Bulletin requirements affecting flight safety, and
Discussion (SB) Trent 1000 72–H818, dated was not preceded by notice and an
November 14, 2016. Alert NMSB Trent opportunity for public comment.
The European Aviation Safety Agency 1000–72–AJ992 defines operating However, we invite you to send any
(EASA), which is the Technical Agent restrictions for de-pairing certain written data, views, or arguments about
for the Member States of the European engines before an IPT blade cyclic life. this final rule. Send your comments to
Community, has issued EASA AD 2018– Revisions 1 and 2 of this NMSB differ an address listed under the ADDRESSES
0086, dated April 17, 2018 (referred to by identifying different engine serial section. Include the docket number
hereinafter as ‘‘the MCAI’’), to correct an numbers that are affected by the ‘‘Docket No. FAA–2017–1237’’ and
unsafe condition for the specified respective NMSBs. RR SB Trent 1000 Product Identifier ‘‘2017–NE–43–AD’’ at
products. The MCAI states: 72–H818 introduces a new IPT blade the beginning of your comments. We
An occurrence was reported where, less susceptible to shank corrosion and specifically invite comments on the
amozie on DSK3GDR082PROD with RULES
following N2 vibration and multiple exempt from this AD. This service overall regulatory, economic,
messages, the flight crew performed an information is reasonably available environmental, and energy aspects of
engine in-flight shut-down (IFSD) and
returned to the departure airport, landing because the interested parties have this final rule. We will consider all
uneventfully. The post-flight borescope access to it through their normal course comments received by the closing date
inspection of the engine revealed an of business or by the means identified and may amend this final rule because
intermediate pressure turbine blade (IPTB) in the ADDRESSES section. of those comments.
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![Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations 34757
We will post all comments we substantive verbal contact we receive Costs of Compliance
receive, without change, to http:// about this final rule. We estimate that this AD affects 0
www.regulations.gov, including any engines installed on airplanes of U.S.
personal information you provide. We registry.
will also post a report summarizing each 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
Time-Staggering of selected Trent 1000 en- 48 work-hours × $85 per hour = $4,080 ........ $0 $4,080 $0
gines on B787.
Authority for This Rulemaking (2) Is not a ‘‘significant rule’’ under AJ992, Revision 1, dated January 3, 2018, or
the DOT Regulatory Policies and Appendix 1, Table 1, of RR Alert NMSB
Title 49 of the United States Code TRENT 1000 72–AJ992, Revision 2, dated
specifies the FAA’s authority to issue Procedures (44 FR 11034, February 26,
April 16, 2018, except those that have
rules on aviation safety. Subtitle I, 1979),
incorporated RR Service Bulletin (SB) Trent
section 106, describes the authority of (3) Will not affect intrastate aviation 1000 72–H818, dated November 14, 2016.
the FAA Administrator. ‘‘Subtitle VII: in Alaska, and
(4) Will not have a significant (d) Subject
Aviation Programs,’’ describes in more
detail the scope of the Agency’s economic impact, positive or negative, Joint Aircraft System Component (JASC)
authority. on a substantial number of small entities 7250, Turbine Engine, Turbine Section.
We are issuing this rulemaking under under the criteria of the Regulatory (e) Unsafe Condition
the authority described in Subtitle VII, Flexibility Act.
This AD was prompted by operating
Part A, Subpart III, Section 44701: List of Subjects in 14 CFR Part 39 restrictions that have been defined for certain
‘‘General requirements.’’ Under that engines with intermediate-pressure turbine
section, Congress charges the FAA with Air transportation, Aircraft, Aviation (IPT) blades susceptible to shank corrosion
promoting safe flight of civil aircraft in safety, Incorporation by reference, and possible blade separation. These
air commerce by prescribing regulations Safety. restrictions define when an engine can no
for practices, methods, and procedures longer be installed on an airplane together
Adoption of the Amendment with other engines susceptible to the same
the Administrator finds necessary for
Accordingly, under the authority failure. We are issuing this AD to prevent the
safety in air commerce. This regulation simultaneous failure of both engines. This
delegated to me by the Administrator,
is within the scope of that authority unsafe condition, if not addressed, could
the FAA amends 14 CFR part 39 as
because it addresses an unsafe condition result in a dual engine in-flight shutdown
follows:
that is likely to exist or develop on and loss of the airplane.
products identified in this rulemaking PART 39—AIRWORTHINESS (f) Compliance
action. DIRECTIVES
This AD is issued in accordance with Comply with this AD within the
authority delegated by the Executive compliance times specified, unless already
■ 1. The authority citation for part 39 done.
Director, Aircraft Certification Service, continues to read as follows:
as authorized by FAA Order 8000.51C. (g) Required Actions
Authority: 49 U.S.C. 106(g), 40113, 44701.
In accordance with that order, issuance After the effective date of this AD, for any
of ADs is normally a function of the § 39.13 [Amended] affected engine identified in Appendix 1,
Compliance and Airworthiness Table 1, of RR Alert NMSB TRENT 1000 72–
■ 2. The FAA amends § 39.13 by adding AJ992, Revision 1, dated January 3, 2018; or
Division, but during this transition
the following new airworthiness Appendix 1, Table 1, of RR Alert NMSB
period, the Executive Director has
directive (AD): TRENT 1000 72–AJ992, Revision 2, dated
delegated the authority to issue ADs
applicable to engines, propellers, and 2018–15–01 Rolls-Royce plc: Amendment April 16, 2018, installed with another
39–19333; Docket No. FAA–2017–1237; affected engine, listed in the same table, on
associated appliances to the Manager, the same airplane, remove one of the engines
Engine and Propeller Standards Branch, Product Identifier 2017–NE–43–AD.
from the airplane before both engines exceed
Policy and Innovation Division. (a) Effective Date their respective IPT blade cyclic life limit
Regulatory Findings This AD is effective August 7, 2018. identified in Appendix 1, Table 1, of the
respective NMSB, or within 20 flight cycles,
This AD will not have federalism (b) Affected ADs whichever occurs later.
implications under Executive Order None.
(h) Installation Prohibition
13132. This AD will not have a
(c) Applicability (1) Engines listed in each group in
substantial direct effect on the States, on
the relationship between the national This AD applies to Rolls-Royce plc (RR) Appendix 1, Table 1, of RR Alert NMSB
government and the States, or on the Trent 1000–A, Trent 1000–C, Trent 1000–D, Trent 1000 72–AJ992, Revision 1, dated
Trent 1000–E, Trent 1000–G, Trent 1000–H, January 3, 2018, or Appendix 1, Table 1, of
distribution of power and
amozie on DSK3GDR082PROD with RULES
Trent 1000–A2, Trent 1000–C2, Trent 1000– Alert NMSB Trent 1000 72–AJ992, Revision
responsibilities among the various D2, Trent 1000–E2, Trent 1000–G2, Trent 2, dated April 16, 2018, are not to be
levels of government. 1000–H2, Trent 1000–J2, Trent 1000–K2, and installed on an airplane together with an
For the reasons discussed above, I Trent 1000–L2 engine models with engine engine listed in a different group in the same
certify this AD: serial numbers identified in Appendix 1, table once they have exceeded their IPT
(1) Is not a ‘‘significant regulatory Table 1, of RR Alert Non-Modification blade cyclic life limit identified in Appendix
action’’ under Executive Order 12866, Service Bulletin (NMSB) TRENT 1000 72– 1, Table 1 of the respective NMSB.
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![34758 Federal Register / Vol. 83, No. 141 / Monday, July 23, 2018 / Rules and Regulations
(2) Engines listed in Appendix 1, Table 1, England, DE24 8BJ; phone: 011–44–1332– ADDRESSES: You may send comments,
of RR Alert NMSB Trent 1000 72–AJ992, 242424; fax: 011–44–1332–249936; email: using the procedures found in 14 CFR
Revision 1, dated January 3, 2018, or http://www.rolls-royce.com/contact/civil_ 11.43 and 11.45, by any of the following
Appendix 1, Table 1, of RR Alert NMSB team.jsp; internet: https://customers.rolls-
methods:
Trent 1000 72–AJ992, Revision 2, dated April royce.com/public/rollsroycecare.
16, 2018, may not be installed on an airplane (4) You may view this service information • Federal eRulemaking Portal: Go to
with engines that have IPT blades installed at FAA, Engine and Propeller Standards http://www.regulations.gov. Follow the
in accordance with RR NMSB Trent 1000 72– Branch, 1200 District Avenue, Burlington, instructions for submitting comments.
J442, Revision 1, dated February 21, 2018, or MA 01803. For information on the • Fax: 202–493–2251.
Initial Issue, dated September 21, 2016; or RR availability of this material at the FAA, call • Mail: U.S. Department of
NMSB Trent 1000 72–J465, Revision 2, dated 781–238–7759. Transportation, Docket Operations,
February 28, 2018, or Revision 1, dated (5) You may view this service information M–30, West Building Ground Floor,
January 10, 2017, or Initial Issue, dated that is incorporated by reference at the Room W12–140, 1200 New Jersey
December 22, 2016. National Archives and Records
Avenue SE, Washington, DC 20590.
Administration (NARA). For information on
(i) Terminating Action
the availability of this material at NARA, call • Hand Delivery: U.S. Department of
Modification of an engine in accordance 202–741–6030, or go to: http:// Transportation, Docket Operations,
with the instructions of RR SB Trent 1000 www.archives.gov/federal-register/cfr/ibr- M–30, West Building Ground Floor,
72–H818, dated November 14, 2016, locations.html. Room W12–140, 1200 New Jersey
constitutes terminating action for the Avenue SE, Washington, DC 20590,
requirements of this AD for that engine. Issued in Burlington, Massachusetts, on
July 17, 2018. between 9 a.m. and 5 p.m., Monday
(j) Alternative Methods of Compliance through Friday, except Federal holidays.
(AMOCs) Robert J. Ganley,
For service information identified in
Manager, Engine and Propeller Standards this final rule, contact Rolls-Royce plc,
(1) The Manager, ECO Branch, FAA, has
Branch, Aircraft Certification Service.
the authority to approve AMOCs for this AD, Corporate Communications, P.O. Box
if requested using the procedures found in 14 [FR Doc. 2018–15649 Filed 7–20–18; 8:45 am] 31, Derby, England, DE24 8BJ; phone:
CFR 39.19. In accordance with 14 CFR 39.19, BILLING CODE 4910–13–P 011–44–1332–242424; fax: 011–44–
send your request to your principal inspector 1332–249936; email: corporate.care@
or local Flight Standards District Office, as
appropriate. If sending information directly
rolls-royce.com; internet: https://
DEPARTMENT OF TRANSPORTATION customers.rolls-royce.com/public/
to the manager of the certification office,
send it to the attention of the person Federal Aviation Administration rollsroycecare. You may view this
identified in paragraph (k)(1) of this AD. You service information at the FAA, Engine
may email your request to: ANE-AD-AMOC@
14 CFR Part 39 & Propeller Standards Branch, 1200
faa.gov. District Avenue, Burlington, MA 01803.
(2) Before using any approved AMOC, [Docket No. FAA–2018–0590; Product For information on the availability of
notify your appropriate principal inspector, Identifier 2018–NE–24–AD; Amendment 39– this material at the FAA, call 781–238–
or lacking a principal inspector, the manager 19319; AD 2018–13–07]
of the local flight standards district office/
7759. It is also available on the internet
certificate holding district office. RIN 2120–AA64 at http://www.regulations.gov by
searching for and locating Docket No.
(k) Related Information Airworthiness Directives; Rolls-Royce FAA–2018–0590.
(1) For more information about this AD, plc Turbofan Engines
contact Kevin M. Clark, Aerospace Engineer, Examining the AD Docket
ECO Branch, FAA, 1200 District Avenue, AGENCY: Federal Aviation
You may examine the AD docket on
Burlington, MA 01803; phone: 781–238– Administration (FAA), DOT.
the internet at http://
7088; fax: 781–238–7199; email: ACTION: Final rule; request for
kevin.m.clark@faa.gov.
www.regulations.gov by searching for
comments. and locating Docket No. FAA–2018–
(2) Refer to European Aviation Safety
Agency (EASA) AD 2018–0086, dated April SUMMARY: We are adopting a new 0590; or in person at Docket Operations
17, 2018, for more information. You may airworthiness directive (AD) for all between 9 a.m. and 5 p.m., Monday
examine the EASA AD in the AD docket on Rolls-Royce plc (RR) Trent 1000–A, through Friday, except Federal holidays.
the internet at http://www.regulations.gov by The AD docket contains this final rule,
Trent 1000–C, Trent 1000–D, Trent
searching for and locating it in Docket No. the mandatory continuing airworthiness
FAA–2017–1237. 1000–E, Trent 1000–G, and Trent 1000–
H turbofan engine models. This AD information (MCAI), the regulatory
(l) Material Incorporated by Reference requires inspecting the intermediate- evaluation, any comments received, and
(1) The Director of the Federal Register pressure compressor (IPC) stage 1 rotor other information. The street address for
approved the incorporation by reference blades, IPC stage 2 rotor blades, and IPC Docket Operations (phone: 800–647–
(IBR) of the service information listed in this stage 2 dovetail posts, and removing any 5527) is listed above. Comments will be
paragraph under 5 U.S.C. 552(a) and 1 CFR cracked parts from service. This AD was available in the AD docket shortly after
part 51. receipt.
(2) You must use this service information prompted by crack findings on the IPC
rotor blades, which could lead to FOR FURTHER INFORMATION CONTACT:
as applicable to do the actions required by
this AD, unless the AD specifies otherwise. separations resulting in engine failures. Kevin M. Clark, Aerospace Engineer,
(i) Rolls-Royce plc (RR) Alert Non- We are issuing this AD to address the ECO Branch, FAA, 1200 District
Modification Service Bulletin (NMSB) Trent unsafe condition on these products. Avenue, Burlington, MA 01803; phone:
1000–72–AJ992, Revision 1, dated January 3, DATES: This AD is effective August 7, 781–238–7088; fax: 781–238–7199;
2018. email: kevin.m.clark@faa.gov.
2018.
amozie on DSK3GDR082PROD with RULES
(ii) RR Alert NMSB Trent 1000–72–AJ992,
Revision 2, dated April 16, 2018.
The Director of the Federal Register SUPPLEMENTARY INFORMATION:
(iii) RR Service Bulletin Trent 1000 72– approved the incorporation by reference
Discussion
H818, dated November 14, 2016. of a certain publication listed in this AD
(3) For RR service information identified in as of August 7, 2018. The European Aviation Safety Agency
this AD, contact Rolls-Royce plc, Corporate We must receive comments on this (EASA), which is the Technical Agent
Communications, P.O. Box 31, Derby, AD by September 6, 2018. for the Member States of the European
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Document Created: 2018-07-21 00:48:59
Document Modified: 2018-07-21 00:48:59
| 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 August 7, 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 34755 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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