Airworthiness Directives; Rolls-Royce plc Turbofan Engines, 69625-69627 [2015-28533]

Download as PDF Federal Register / Vol. 80, No. 217 / Tuesday, November 10, 2015 / Proposed Rules (e) Actions and Compliance Comply with this AD within the compliance times specified, unless already done. (1) For PWC PT6A–67AF and PT6A–67AG engines, within 500 flight hours (FHs) or one year after the effective date of this AD, whichever occurs first, replace the Woodward FCU. Use paragraphs 3.A. and 3.C. of PWC Service Bulletin (SB) No. PT6A– 72–14389, Revision 3, dated January 27, 2011 to replace the FCU. (2) For PWC PT6A–60AG BS919 and BS1048 engines with pre-SB No. PT6A–72– 13402 configuration, within 36 months after the effective date of this AD, replace the Woodward FCU. Use paragraph 3.C.(1) and 3.C.(3) of PWC SB No. PT6A–72–13473, Revision 1, dated May 26, 2015 to replace the FCU. (3) For PWC PT6A–65AG BS708, BS903, BS1101, and BS1102 engines with pre-SB PT6A–72–13408 configuration, within 36 months after the effective date of this AD, replace the Woodward FCU. Use paragraphs 3.A.(1) and 3.A.(3) of PWC SB No. PT6A–72– 13473, Revision 1, dated May 26, 2015 to replace the FCU. (f) Credit for Previous Actions You may take credit for the actions required by paragraph (e) of this AD if you performed the actions before the effective date of this AD in accordance with PWC SB No. PT6A–72–14389, Revision 2, dated April 23, 2009; or SB No. PT6A–72–13473, dated March 12, 2015; or SB No. PT6A–72–13408, Revision 1, dated March 12, 2015; or earlier versions. rmajette on DSK2TPTVN1PROD with PROPOSALS (g) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs for this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (h) Related Information (1) For more information about this AD, contact Besian Luga, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7750; fax: 781–238–7199; email: besian.luga@faa.gov. (2) Refer to MCAI Transport Canada AD CF–2015–23, dated July 23, 2015, for more information. You may examine the MCAI in the AD docket on the Internet at https:// www.regulations.gov by searching for and locating it in Docket No. FAA–2015–3732. (3) PWC SB No. PT6A–72–14389, Revision 3, dated January 27, 2011 and SB No. 13473, Revision 1, dated May 26, 2015, can be obtained from PWC, using the contact information in paragraph (h)(4) of this proposed AD. (4) For service information identified in this proposed AD, contact Pratt & Whitney Corp., 1000 Marie-Victorin, Longueuil, Quebec, Canada, J4G 1A1; phone: 800–268– 8000; fax: 450–647–2888; Web site: www.pwc.ca. (5) You may view this service information at the FAA, Engine & Propeller Directorate, VerDate Sep<11>2014 13:28 Nov 09, 2015 Jkt 238001 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on November 4, 2015. Colleen M. D’Alessandro, Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015–28534 Filed 11–9–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2014–0561; Directorate Identifier 2014–NE–12–AD] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to supersede airworthiness directive (AD) 2015–04– 03 that applies to certain Rolls-Royce plc (RR) RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines. AD 2015–04–03 requires inspection of the sealing sleeve on the high-pressure/ intermediate-pressure (HP/IP) turbine support internal oil feed tube and removal of those sealing sleeves affected by AD 2015–04–03. This proposed AD would require removal of either the affected sealing sleeve only or both the affected sealing sleeve and the oil feed tube. We are proposing this AD to prevent failure of the HP/IP turbine support internal oil feed tube, which could lead to uncontained engine failure and damage to the airplane. DATES: We must receive comments on this proposed AD by January 11, 2016. 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 https://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: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this proposed AD, contact Rolls-Royce SUMMARY: PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 69625 plc, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone: 011–44–1332–242424; fax: 011–44–1332–249936; email: https:// 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 & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2014– 0561; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this proposed AD, the mandatory continuing airworthiness information, regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Philip Haberlen, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7770; fax: 781–238– 7199; email: philip.haberlen@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2014–0561; Directorate Identifier 2014–NE–12–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this proposed AD. We will consider all comments received by the closing date and may amend this proposed AD because of those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion On February 11, 2015, we issued AD 2015–04–03, Amendment 39–18105 (80 E:\FR\FM\10NOP1.SGM 10NOP1 69626 Federal Register / Vol. 80, No. 217 / Tuesday, November 10, 2015 / Proposed Rules FR 9380, February 23, 2015), for certain RR RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines. AD 2015– 04–03 requires inspection of the sealing sleeve on the HP/IP turbine support internal oil feed tube and removal of those sealing sleeves affected by AD 2015–04–03. AD 2015–04–03 resulted from fractures of the HP/IP turbine support internal oil feed tube. We issued AD 2015–04–03 to prevent failure of the HP/IP turbine support internal oil feed tube, which could result in uncontained engine failure and damage to the airplane. Actions Since AD 2015–04–03 Was Issued Since we issued AD 2015–04–03, Amendment 39–18105 (80 FR 9380, February 23, 2015), we received a report of high oil consumption on an engine that did not have an affected sealing sleeve. The manufacturer’s investigation revealed that certain oil feed tube threaded end adapters were manufactured with the outer diameter larger than the drawing maximum, which can cause binding of the sliding joint and ultimately lead to low-cycle fatigue failure of the HP/IP turbine support internal oil feed tube. Also since we issued AD 2015–04–03, the European Aviation Safety Agency has issued AD 2015–0105R1, dated August 18, 2015, which requires inspection of the affected sealing sleeve and removal of the affected sealing sleeve or removal of both the affected sealing sleeve and oil feed tube. rmajette on DSK2TPTVN1PROD with PROPOSALS Related Service Information Under 1 CFR Part 51 RR has issued RR Alert NonModification Service Bulletin (NMSB) No. RB.211–72–AJ035, Revision 2, dated August 10, 2015 and RR Service Bulletin (SB) No. RB.211–72–H754, dated October 1, 2014. The Alert NMSB No. RB.211–72–AJ035, Revision 2, dated August 10, 2015, provides guidance on identification of the sealing sleeve, part number (P/N) FW15003, and replacement of the non-conforming sealing sleeve, P/N FW15003, with a conforming sealing sleeve, P/N FW15003. The SB No. RB.211–72–H754, dated October 1, 2014, provides information on the replacement of the sealing sleeve, P/N FW15003, and oil feed tube, P/N FW14193, with a sealing sleeve, P/N KH28323 and oil feed tube, P/N KH28324. 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 of this NPRM. VerDate Sep<11>2014 13:28 Nov 09, 2015 Jkt 238001 FAA’s Determination We are proposing 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. Proposed AD Requirements This proposed AD would require removal of the affected sealing sleeve only or both the affected sealing sleeve and the oil feed tube. Both corrective actions eliminate the unsafe condition caused by affected sealing sleeves and/ or affected oil feed tube threaded end adapters. Costs of Compliance We estimate that this proposed AD affects 58 engines installed on airplanes of U.S. registry. We also estimate that it would take about 1.2 hours per engine to comply with this proposed AD. The average labor rate is $85 per hour. Required parts cost approximately $5,850 per engine. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $345,216. 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. Regulatory Findings We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 that the proposed regulation: PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 (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 to the extent that it justifies making a regulatory distinction, 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. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing airworthiness directive (AD) 2015–04–03, Amendment 39–18105 (80 FR 9380, February 23, 2015) (‘‘AD 2015– 04–03’’), and adding the following new AD: ■ Rolls-Royce plc: Docket No. FAA–2014– 0561; Directorate Identifier 2014–NE– 12–AD. (a) Comments Due Date We must receive comments by January 11, 2016. (b) Affected ADs This AD supersedes AD 2015–04–03. (c) Applicability This AD applies to Rolls-Royce plc (RR) RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines, all serial numbers, except those engines: (1) That have had Modification 72–H754 applied in production, or (2) that have been modified in accordance with RR Service Bulletin (SB) No. RB.211– 72–H754, dated October 1, 2014, or (3) with sealing sleeve, part number (P/N) FW15003, with markings 102013, 112013, or 102013L. (d) Unsafe Condition This AD was prompted by fractures of the high-pressure/intermediate pressure (HP/IP) turbine support internal oil feed tube. We are issuing this AD to prevent failure of the HP/ IP turbine support internal oil feed tube, which could result in uncontained engine failure and damage to the airplane. E:\FR\FM\10NOP1.SGM 10NOP1 Federal Register / Vol. 80, No. 217 / Tuesday, November 10, 2015 / Proposed Rules (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) If sealing sleeve, P/N FW15003, is installed without markings 102013, 112013, or 102013L, or if the markings cannot be sufficiently identified, then within 1,600 flight cycles or 24 months after the effective date of this AD, whichever occurs first: (i) Remove the affected sealing sleeve, P/ N FW15003, and replace it with a sealing sleeve eligible for installation. Use paragraph 3.A.(4)(b) of RR Alert Non-Modification Service Bulletin (NMSB) No. RB.211–72– AJ035, Revision 2, dated August 10, 2015, to perform the part replacement, or, (ii) Remove the affected sealing sleeve, P/ N FW15003, and the oil feed tube, P/N FW14193, and replace with parts eligible for installation. Use paragraph 3.B. or 3.C., as appropriate, of RR SB No. RB.211–72–H754, dated October 1, 2014, to perform the parts replacement. (2) Reserved. (f) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. rmajette on DSK2TPTVN1PROD with PROPOSALS (g) Related Information (1) For more information about this AD, contact Philip Haberlen, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7770; fax: 781–238–7199; email: philip.haberlen@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2015–0105R1, dated, August 18, 2015, for more information. You may examine the MCAI in the AD docket on the Internet at https://www.regulations.gov/ #!docketDetail;D=FAA-2014-0561. (3) RR Alert NMSB No. RB.211–72–AJ035, Revision 2, dated August 10, 2015 and RR SB No. RB.211–72–H754, dated October 1, 2014, can be obtained from RR, using the contact information in paragraph (g)(4) of this AD. (4) For service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, United Kingdom; phone: 011–44–1332– 242424; fax: 011–44–1332–249936; email: https://www.rolls-royce.com/contact/civil_ team.jsp; Internet: https://customers.rollsroyce.com/public/rollsroycecare. (5) You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on November 2, 2015. Colleen M. D’Alessandro, Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015–28533 Filed 11–9–15; 8:45 am] BILLING CODE 4910–13–P VerDate Sep<11>2014 13:28 Nov 09, 2015 Jkt 238001 ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA–R03–OAR–2014–0475; FRL–9936–87– Region 3] Approval and Promulgation of Air Quality Implementation Plans; Pennsylvania; Allegheny County’s Adoption of Control Techniques Guidelines for Four Industry Categories for Control of Volatile Organic Compound Emissions Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: The Environmental Protection Agency (EPA) is proposing to convert the conditional approval of revisions to the Pennsylvania State Implementation Plan (SIP) submitted by the Commonwealth of Pennsylvania on behalf of the Allegheny County Health Department (ACHD) to a full approval. The SIP revision included amendments to the ACHD Rules and Regulations, Article XXI, Air Pollution Control, and meets the requirement to adopt Reasonably Available Control Technology (RACT) for sources covered by EPA’s Control Techniques Guidelines (CTG) standards for the following categories: Miscellaneous metal and/or plastic parts surface coating processes, automobile and lightduty truck assembly coatings, miscellaneous industrial adhesives, and fiberglass boat manufacturing materials. Upon review of the submittal, EPA found that the average monomer volatile organic compound (VOC) content limits were referenced but not included in the regulation for fiberglass boat manufacturing materials. ACHD has revised the regulation and submitted the table of VOC content limits for fiberglass boat manufacturing materials to EPA in order to address specific RACT requirements for Allegheny County. EPA is, therefore, proposing to convert the conditional approval to a full approval of the revisions to the Pennsylvania SIP in accordance with the requirements of the Clean Air Act (CAA). SUMMARY: Written comments must be received on or before December 10, 2015. DATES: Submit your comments, identified by Docket ID Number EPA– R03–OAR–2014–0475 by one of the following methods: A. www.regulations.gov. Follow the on-line instructions for submitting comments. ADDRESSES: PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 69627 B. Email: fernandez.cristina@epa.gov. C. Mail: EPA–R03–OAR–2014–0475, Cristina Fernandez, Associate Director, Office of Air Program Planning, Mailcode 3AP30, U.S. Environmental Protection Agency, Region III, 1650 Arch Street, Philadelphia, Pennsylvania 19103. D. Hand Delivery: At the previouslylisted EPA Region III address. Such deliveries are only accepted during the Docket’s normal hours of operation, and special arrangements should be made for deliveries of boxed information. Instructions: Direct your comments to Docket ID No. EPA–R03–OAR–2014– 0475. EPA’s policy is that all comments received will be included in the public docket without change, and may be made available online at www.regulations.gov, including any personal information provided, unless the comment includes information claimed to be Confidential Business Information (CBI) or other information whose disclosure is restricted by statute. Do not submit information that you consider to be CBI or otherwise protected through www.regulations.gov or email. The www.regulations.gov Web site is an ‘‘anonymous access’’ system, which means EPA will not know your identity or contact information unless you provide it in the body of your comment. If you send an email comment directly to EPA without going through www.regulations.gov, your email address will be automatically captured and included as part of the comment that is placed in the public docket and made available on the Internet. If you submit an electronic comment, EPA recommends that you include your name and other contact information in the body of your comment and with any disk or CD–ROM you submit. If EPA cannot read your comment due to technical difficulties and cannot contact you for clarification, EPA may not be able to consider your comment. Electronic files should avoid the use of special characters, any form of encryption, and be free of any defects or viruses. Docket: All documents in the electronic docket are listed in the www.regulations.gov index. Although listed in the index, some information is not publicly available, i.e., CBI or other information whose disclosure is restricted by statute. Certain other material, such as copyrighted material, is not placed on the Internet and will be publicly available only in hard copy form. Publicly available docket materials are available in www.regulations.gov or may be viewed during normal business hours at the Air Protection Division, U.S. Environmental E:\FR\FM\10NOP1.SGM 10NOP1

Agencies

[Federal Register Volume 80, Number 217 (Tuesday, November 10, 2015)]
[Proposed Rules]
[Pages 69625-69627]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-28533]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-0561; Directorate Identifier 2014-NE-12-AD]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede airworthiness directive (AD) 2015-04-
03 that applies to certain Rolls-Royce plc (RR) RB211 Trent 768-60, 
772-60, and 772B-60 turbofan engines. AD 2015-04-03 requires inspection 
of the sealing sleeve on the high-pressure/intermediate-pressure (HP/
IP) turbine support internal oil feed tube and removal of those sealing 
sleeves affected by AD 2015-04-03. This proposed AD would require 
removal of either the affected sealing sleeve only or both the affected 
sealing sleeve and the oil feed tube. We are proposing this AD to 
prevent failure of the HP/IP turbine support internal oil feed tube, 
which could lead to uncontained engine failure and damage to the 
airplane.

DATES: We must receive comments on this proposed AD by January 11, 
2016.

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 https://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: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, DE24 
8BJ, United Kingdom; phone: 011-44-1332-242424; fax: 011-44-1332-
249936; email: https://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 & Propeller 
Directorate, 12 New England Executive Park, Burlington, MA. For 
information on the availability of this material at the FAA, call 781-
238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2014-
0561; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the mandatory continuing airworthiness 
information, regulatory evaluation, any comments received, and other 
information. The address for the Docket Office (phone: 800-647-5527) is 
in the ADDRESSES section. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Philip Haberlen, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: 781-238-7770; 
fax: 781-238-7199; email: philip.haberlen@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2014-0561; 
Directorate Identifier 2014-NE-12-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On February 11, 2015, we issued AD 2015-04-03, Amendment 39-18105 
(80

[[Page 69626]]

FR 9380, February 23, 2015), for certain RR RB211 Trent 768-60, 772-60, 
and 772B-60 turbofan engines. AD 2015-04-03 requires inspection of the 
sealing sleeve on the HP/IP turbine support internal oil feed tube and 
removal of those sealing sleeves affected by AD 2015-04-03. AD 2015-04-
03 resulted from fractures of the HP/IP turbine support internal oil 
feed tube. We issued AD 2015-04-03 to prevent failure of the HP/IP 
turbine support internal oil feed tube, which could result in 
uncontained engine failure and damage to the airplane.

Actions Since AD 2015-04-03 Was Issued

    Since we issued AD 2015-04-03, Amendment 39-18105 (80 FR 9380, 
February 23, 2015), we received a report of high oil consumption on an 
engine that did not have an affected sealing sleeve. The manufacturer's 
investigation revealed that certain oil feed tube threaded end adapters 
were manufactured with the outer diameter larger than the drawing 
maximum, which can cause binding of the sliding joint and ultimately 
lead to low-cycle fatigue failure of the HP/IP turbine support internal 
oil feed tube. Also since we issued AD 2015-04-03, the European 
Aviation Safety Agency has issued AD 2015-0105R1, dated August 18, 
2015, which requires inspection of the affected sealing sleeve and 
removal of the affected sealing sleeve or removal of both the affected 
sealing sleeve and oil feed tube.

Related Service Information Under 1 CFR Part 51

    RR has issued RR Alert Non-Modification Service Bulletin (NMSB) No. 
RB.211-72-AJ035, Revision 2, dated August 10, 2015 and RR Service 
Bulletin (SB) No. RB.211-72-H754, dated October 1, 2014. The Alert NMSB 
No. RB.211-72-AJ035, Revision 2, dated August 10, 2015, provides 
guidance on identification of the sealing sleeve, part number (P/N) 
FW15003, and replacement of the non-conforming sealing sleeve, P/N 
FW15003, with a conforming sealing sleeve, P/N FW15003. The SB No. 
RB.211-72-H754, dated October 1, 2014, provides information on the 
replacement of the sealing sleeve, P/N FW15003, and oil feed tube, P/N 
FW14193, with a sealing sleeve, P/N KH28323 and oil feed tube, P/N 
KH28324. 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 of this 
NPRM.

FAA's Determination

    We are proposing 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.

Proposed AD Requirements

    This proposed AD would require removal of the affected sealing 
sleeve only or both the affected sealing sleeve and the oil feed tube. 
Both corrective actions eliminate the unsafe condition caused by 
affected sealing sleeves and/or affected oil feed tube threaded end 
adapters.

Costs of Compliance

    We estimate that this proposed AD affects 58 engines installed on 
airplanes of U.S. registry. We also estimate that it would take about 
1.2 hours per engine to comply with this proposed AD. The average labor 
rate is $85 per hour. Required parts cost approximately $5,850 per 
engine. Based on these figures, we estimate the cost of this proposed 
AD on U.S. operators to be $345,216.

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.

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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 that the proposed 
regulation:
    (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 to the extent 
that it justifies making a regulatory distinction, 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.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 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) 
2015-04-03, Amendment 39-18105 (80 FR 9380, February 23, 2015) (``AD 
2015-04-03''), and adding the following new AD:

Rolls-Royce plc: Docket No. FAA-2014-0561; Directorate Identifier 
2014-NE-12-AD.

(a) Comments Due Date

    We must receive comments by January 11, 2016.

(b) Affected ADs

    This AD supersedes AD 2015-04-03.

(c) Applicability

    This AD applies to Rolls-Royce plc (RR) RB211 Trent 768-60, 772-
60, and 772B-60 turbofan engines, all serial numbers, except those 
engines:
    (1) That have had Modification 72-H754 applied in production, or
    (2) that have been modified in accordance with RR Service 
Bulletin (SB) No. RB.211-72-H754, dated October 1, 2014, or
    (3) with sealing sleeve, part number (P/N) FW15003, with 
markings 102013, 112013, or 102013L.

(d) Unsafe Condition

    This AD was prompted by fractures of the high-pressure/
intermediate pressure (HP/IP) turbine support internal oil feed 
tube. We are issuing this AD to prevent failure of the HP/IP turbine 
support internal oil feed tube, which could result in uncontained 
engine failure and damage to the airplane.

[[Page 69627]]

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) If sealing sleeve, P/N FW15003, is installed without 
markings 102013, 112013, or 102013L, or if the markings cannot be 
sufficiently identified, then within 1,600 flight cycles or 24 
months after the effective date of this AD, whichever occurs first:
    (i) Remove the affected sealing sleeve, P/N FW15003, and replace 
it with a sealing sleeve eligible for installation. Use paragraph 
3.A.(4)(b) of RR Alert Non-Modification Service Bulletin (NMSB) No. 
RB.211-72-AJ035, Revision 2, dated August 10, 2015, to perform the 
part replacement, or,
    (ii) Remove the affected sealing sleeve, P/N FW15003, and the 
oil feed tube, P/N FW14193, and replace with parts eligible for 
installation. Use paragraph 3.B. or 3.C., as appropriate, of RR SB 
No. RB.211-72-H754, dated October 1, 2014, to perform the parts 
replacement.
    (2) Reserved.

 (f) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, FAA, may approve AMOCs 
to this AD. Use the procedures found in 14 CFR 39.19 to make your 
request. You may email your request to: ANE-AD-AMOC@faa.gov.

(g) Related Information

    (1) For more information about this AD, contact Philip Haberlen, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7770; fax: 781-238-7199; email: 
philip.haberlen@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency AD 2015-
0105R1, dated, August 18, 2015, for more information. You may 
examine the MCAI in the AD docket on the Internet at https://www.regulations.gov/#!docketDetail;D=FAA-2014-0561.
    (3) RR Alert NMSB No. RB.211-72-AJ035, Revision 2, dated August 
10, 2015 and RR SB No. RB.211-72-H754, dated October 1, 2014, can be 
obtained from RR, using the contact information in paragraph (g)(4) 
of this AD.
    (4) For service information identified in this AD, contact 
Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, DE24 
8BJ, United Kingdom; phone: 011-44-1332-242424; fax: 011-44-1332-
249936; email: https://www.rolls-royce.com/contact/civil_team.jsp; 
Internet: https://customers.rolls-royce.com/public/rollsroycecare.
    (5) You may view this service information at the FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, 
MA. For information on the availability of this material at the FAA, 
call 781-238-7125.

    Issued in Burlington, Massachusetts, on November 2, 2015.
Colleen M. D'Alessandro,
Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-28533 Filed 11-9-15; 8:45 am]
BILLING CODE 4910-13-P
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