Airworthiness Directives; Rolls-Royce plc Turbojet Engines, 61131-61133 [2015-25607]

Download as PDF 61131 Proposed Rules Federal Register Vol. 80, No. 196 Friday, October 9, 2015 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. transcripts, comments, and other supporting documents/materials. All documents in the docket are listed in the www.regulations.gov index. However, not all documents listed in the index may be publicly available, such as information that is exempt from public disclosure. DEPARTMENT OF ENERGY Issued in Washington, DC, on October 2, 2015. Kathleen B. Hogan, Deputy Assistant Secretary for Energy Efficiency, Energy Efficiency and Renewable Energy. 10 CFR Part 430 [Docket No. EERE–2011–BT–STD–0043] Miscellaneous Refrigeration Products Working Group: Open Teleconference Call Office of Energy Efficiency and Renewable Energy, Department of Energy. ACTION: Notification of open teleconference call. [FR Doc. 2015–25777 Filed 10–8–15; 8:45 am] BILLING CODE 6450–01–P AGENCY: This document announces a public conference call for the Miscellaneous Refrigeration Products Working Group (MREF Working Group). The Federal Advisory Committee Act requires that agencies publish notice of an advisory committee meeting in the Federal Register. DATES: The teleconference will be held on Tuesday, October 13, 2015 at 10 a.m. until 1 p.m. (This notification is being published less than 15 days prior to the meeting date due to logistical issues that had to be resolved prior to the meeting date.) ADDRESSES: Call in information is posted on the Miscellaneous Refrigeration Products Web site https:// www1.eere.energy.gov/buildings/ appliance_standards/ product.aspx?productid=86. SUMMARY: John Cymbalsky, ASRAC Designated Federal Officer, U.S. Department of Energy (DOE), Office of Energy Efficiency and Renewable Energy, 950 L’Enfant Plaza SW., Washington, DC 20024. Email: asrac@ee.doe.gov. FOR FURTHER INFORMATION CONTACT: rmajette on DSK7SPTVN1PROD with PROPOSALS SUPPLEMENTARY INFORMATION: Members of the public are welcome to observe the business of the meeting and, if time allows, may make oral statements during the specified period for public comment. Docket: The docket is available for review at www.regulations.gov, including Federal Register notices, public meeting attendee lists and VerDate Sep<11>2014 15:04 Oct 08, 2015 Jkt 238001 DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–1331; Directorate Identifier 2012–NE–44–AD] Examining the AD Docket RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc Turbojet Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to supersede airworthiness directive (AD) 2013–11– 13 that applies to all Rolls-Royce plc (RR) Viper Mk. 601–22 turbojet engines. Since we issued AD 2013–11–13, RR determined that additional parts for the RR Viper Mk. 601–22 as well as additional engine models are affected. This proposed AD would add two new engine models and additional engine parts to the applicability. We are proposing this AD to prevent failure of life-limited parts, which could lead to an uncontained part release, damage to the engine, and damage to the airplane. DATES: We must receive comments on this proposed AD by December 8, 2015. 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– SUMMARY: PO 00000 Frm 00001 Fmt 4702 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 DA Services Operations Room at Rolls-Royce plc, Defense Sector Bristol, WH–70, P.O. Box 3, Filton, Bristol BS34 7QE, United Kingdom; phone: +44 (0) 117 97 90700; fax: +44 (0) 117 97 95498; email: defence-operations-room@rollsroyce.com. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781–238– 7125. It is also available on the Internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2012–1331. Sfmt 4702 You may examine the AD docket on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2012– 1331; 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–2012–1331; Directorate Identifier 2012–NE–44–AD’’ at the beginning of your comments. We specifically invite E:\FR\FM\09OCP1.SGM 09OCP1 61132 Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Proposed Rules comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM 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 NPRM. Discussion On May 28, 2013, we issued AD 2013–11–13, Amendment 39–17473 (78 FR 34550, June 10, 2013) (‘‘AD 2013– 11–13’’), for all RR Viper Mk. 601–22 turbojet engines. AD 2013–11–13 requires reducing the life of certain critical parts. AD 2013–11–13 resulted from a review by RR of the lives of these parts. We issued AD 2013–11–13 to prevent failure of life-limited parts, which could lead to an uncontained part release, damage to the engine, and damage to the airplane. rmajette on DSK7SPTVN1PROD with PROPOSALS Actions Since AD 2013–11–13 Was Issued Since we issued AD 2013–11–13, RR determined that additional parts on the Viper Mk. 601–22 engine model and the Viper Mk. 521 and Mk. 522 engine models experienced the same unsafe condition. Also since we issued AD 2013–11–13, the European Aviation Safety Agency has issued AD 2015– 0127R1, dated August 14, 2015, which requires reducing the cyclic life limits of the affected parts. Related Service Information Under 1 CFR Part 51 We reviewed RR Alert Service Bulletin (ASB) Mk. 521 Number 72– A408, Circulation A, dated January 2015; ASB Mk. 521 Number 72–A408, Circulation B, dated January 2015; ASB Mk. 522 Number 72–A413, Circulation A, dated January 2015; ASB Mk. 522 Number 72–A412, Circulation B, dated January 2015; and ASB Mk. 601–22 Number 72–A207, dated January 2015. The service information describes procedures for determining applicable part numbers and revised cyclic life limits. 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 VerDate Sep<11>2014 15:04 Oct 08, 2015 Jkt 238001 described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This NPRM would require accomplishing the actions specified in the service information described previously. This NPRM would add two engine models and additional affected parts to the applicability of AD 2013– 11–13. Costs of Compliance We estimate that this proposed AD will affect about 46 engines installed on airplanes of U.S. registry. We also estimate a prorated parts cost of $66,000 per engine. We also estimate that it would take about 4 hours per engine to comply with this proposed AD. The average labor rate is $85 per hour. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $3,051,640. 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 PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 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) 2013–11–13, Amendment 39–17473 (78 FR 34550, June 10, 2013) (‘‘AD 2013– 11–13’’), and adding the following new AD: ■ Rolls-Royce plc (Type Certificate previously held by Rolls-Royce (1971) Limited, Bristol Engine Division): Docket No. FAA–2012–1331; Directorate Identifier 2012–NE–44–AD. (a) Comments Due Date We must receive comments by December 8, 2015. (b) Affected ADs This AD supersedes AD 2013–11–13. (c) Applicability This AD applies to all Rolls-Royce plc (RR) Viper Mk. 521, Viper Mk. 522, and Viper Mk. 601–22 turbojet engines. (d) Unsafe Condition This AD was prompted by a review by RR of the lives of certain critical parts. We are issuing this AD to prevent failure of lifelimited parts, which could lead to an uncontained part release, damage to the engine, and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) Within 30 days after the effective date of this AD, or before any affected part exceeds its new revised life limit, whichever occurs later, remove any engine from service. Use Table 1 of RR Alert Service Bulletin (ASB) Mk. 521 Number 72–A408, Circulation A, dated January 2015; ASB Mk. 521 Number E:\FR\FM\09OCP1.SGM 09OCP1 Federal Register / Vol. 80, No. 196 / Friday, October 9, 2015 / Proposed Rules 72–A408, Circulation B, dated January 2015; ASB Mk. 522 Number 72–A413, Circulation A, dated January 2015; ASB Mk. 522 Number 72–A412, Circulation B, dated January 2015; and ASB Mk. 601–22 Number 72–A207, dated January 2015, to determine the new life limits. (2) For the RR Viper Mk. 601–22 turbojet engine, remove compressor shaft, part number V900766, before the compressor shaft accumulates 20,720 flight cycles since new. (f) Installation Prohibition After the effective date of this AD, do not install any affected part identified in paragraph (e) of this AD into any engine, nor return any engine to service with any affected part identified in paragraph (e) of this AD installed, if any affected part exceeds the life limit specified in the appropriate ASB identified in paragraph (e)(1) and/or the life limit identified in paragraph (e)(2) of this AD. Issued in Burlington, Massachusetts, on October 2, 2015. Colleen M. D’Alessandro, Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015–25607 Filed 10–8–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2015–3984; Directorate Identifier 2015–NM–033–AD] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Airplanes (g) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, 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. Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). SUMMARY: rmajette on DSK7SPTVN1PROD with PROPOSALS (h) 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 2015–0127R1, dated August 14, 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 Docket No. FAA– 2012–1331. (3) RR ASB Mk. 521 Number 72–A408, Circulation A, dated January 2015; ASB Mk. 521 Number 72–A408, Circulation B, dated January 2015; ASB Mk. 522 Number 72– A413, Circulation A, dated January 2015; ASB Mk. 522 Number 72–A412, Circulation B, dated January 2015; and ASB Mk. 601–22 Number 72–A207, dated January 2015, can be obtained from RR, using the contact information in paragraph (h)(4) of this proposed AD. (4) For service information identified in this AD, contact DA Services Operations Room at Rolls-Royce plc, Defense Sector Bristol, WH–70, P.O. Box 3, Filton, Bristol BS34 7QE, United Kingdom; phone: +44 (0) 117 97 90700; fax: +44 (0) 117 97 95498; email: defence-operations-room@rollsroyce.com. (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. VerDate Sep<11>2014 15:04 Oct 08, 2015 Jkt 238001 AGENCY: We propose to supersede Airworthiness Directive (AD) 2008–13– 12 R1, which applies to certain The Boeing Company Model 737–100, –200, –200C, –300, –400, and –500 series airplanes. AD 2008–13–12 R1 currently requires various repetitive inspections for cracking of the upper frame to side frame splice of the fuselage, and other specified and corrective actions if necessary; and also provides for an optional preventive modification, which terminates the repetitive inspections. Since we issued AD 2008–13–12 R1, we have received reports of additional fatigue cracking of the upper frame to side frame splice of the fuselage, and two reports of severed frames. This proposed AD would add, for certain airplanes, an inspection to determine if the existing frame repair meets all specified requirements; for certain other airplanes, a new modification of the upper frame to side frame splice, which would terminate the repetitive inspections; and reduce certain inspection thresholds and repetitive intervals. We are proposing this AD to detect and correct fatigue cracking of the upper frame to side frame splice of the fuselage, which could result in reduced structural integrity of the frame and adjacent lap joint, causing increased loading in the fuselage skin, which will accelerate skin crack growth and result in decompression of the airplane. DATES: We must receive comments on this proposed AD by November 23, 2015. You may send comments, using the procedures found in 14 CFR ADDRESSES: PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 61133 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 Boeing Commercial Airplanes, Attention: Data & Services Management, P.O. Box 3707, MC 2H–65, Seattle, WA 98124–2207; telephone 206–544–5000, extension 1; fax 206–766–5680; Internet https:// www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. It is also available on the Internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2015– 3984. 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–2015– 3984; 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 regulatory evaluation, any comments received, and other information. The street 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: Wayne Lockett, Aerospace Engineer, Airframe Branch, ANM–120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057–3356; phone: 425–917–6447; fax: 425–917–6590; email: wayne.lockett@ 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–2015–3984; Directorate Identifier E:\FR\FM\09OCP1.SGM 09OCP1

Agencies

[Federal Register Volume 80, Number 196 (Friday, October 9, 2015)]
[Proposed Rules]
[Pages 61131-61133]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2015-25607]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-1331; Directorate Identifier 2012-NE-44-AD]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc Turbojet Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede airworthiness directive (AD) 2013-11-
13 that applies to all Rolls-Royce plc (RR) Viper Mk. 601-22 turbojet 
engines. Since we issued AD 2013-11-13, RR determined that additional 
parts for the RR Viper Mk. 601-22 as well as additional engine models 
are affected. This proposed AD would add two new engine models and 
additional engine parts to the applicability. We are proposing this AD 
to prevent failure of life-limited parts, which could lead to an 
uncontained part release, damage to the engine, and damage to the 
airplane.

DATES: We must receive comments on this proposed AD by December 8, 
2015.

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 DA 
Services Operations Room at Rolls-Royce plc, Defense Sector Bristol, 
WH-70, P.O. Box 3, Filton, Bristol BS34 7QE, United Kingdom; phone: +44 
(0) 117 97 90700; fax: +44 (0) 117 97 95498; email: royce.com">defence-operations-room@rolls-royce.com. You may view this service information at the FAA, 
Engine & Propeller Directorate, 12 New England Executive Park, 
Burlington, MA 01803. For information on the availability of this 
material at the FAA, call 781-238-7125. It is also available on the 
Internet at https://www.regulations.gov by searching for and locating 
Docket No. FAA-2012-1331.

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-2012-
1331; 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-2012-1331; 
Directorate Identifier 2012-NE-44-AD'' at the beginning of your 
comments. We specifically invite

[[Page 61132]]

comments on the overall regulatory, economic, environmental, and energy 
aspects of this NPRM. We will consider all comments received by the 
closing date and may amend this NPRM 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 NPRM.

Discussion

    On May 28, 2013, we issued AD 2013-11-13, Amendment 39-17473 (78 FR 
34550, June 10, 2013) (``AD 2013-11-13''), for all RR Viper Mk. 601-22 
turbojet engines. AD 2013-11-13 requires reducing the life of certain 
critical parts. AD 2013-11-13 resulted from a review by RR of the lives 
of these parts. We issued AD 2013-11-13 to prevent failure of life-
limited parts, which could lead to an uncontained part release, damage 
to the engine, and damage to the airplane.

Actions Since AD 2013-11-13 Was Issued

    Since we issued AD 2013-11-13, RR determined that additional parts 
on the Viper Mk. 601-22 engine model and the Viper Mk. 521 and Mk. 522 
engine models experienced the same unsafe condition. Also since we 
issued AD 2013-11-13, the European Aviation Safety Agency has issued AD 
2015-0127R1, dated August 14, 2015, which requires reducing the cyclic 
life limits of the affected parts.

Related Service Information Under 1 CFR Part 51

    We reviewed RR Alert Service Bulletin (ASB) Mk. 521 Number 72-A408, 
Circulation A, dated January 2015; ASB Mk. 521 Number 72-A408, 
Circulation B, dated January 2015; ASB Mk. 522 Number 72-A413, 
Circulation A, dated January 2015; ASB Mk. 522 Number 72-A412, 
Circulation B, dated January 2015; and ASB Mk. 601-22 Number 72-A207, 
dated January 2015. The service information describes procedures for 
determining applicable part numbers and revised cyclic life limits. 
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 NPRM would require accomplishing the actions specified in the 
service information described previously. This NPRM would add two 
engine models and additional affected parts to the applicability of AD 
2013-11-13.

Costs of Compliance

    We estimate that this proposed AD will affect about 46 engines 
installed on airplanes of U.S. registry. We also estimate a prorated 
parts cost of $66,000 per engine. We also estimate that it would take 
about 4 hours per engine to comply with this proposed AD. The average 
labor rate is $85 per hour. Based on these figures, we estimate the 
cost of this proposed AD on U.S. operators to be $3,051,640.

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) 
2013-11-13, Amendment 39-17473 (78 FR 34550, June 10, 2013) (``AD 2013-
11-13''), and adding the following new AD:

Rolls-Royce plc (Type Certificate previously held by Rolls-Royce 
(1971) Limited, Bristol Engine Division): Docket No. FAA-2012-1331; 
Directorate Identifier 2012-NE-44-AD.

(a) Comments Due Date

    We must receive comments by December 8, 2015.

(b) Affected ADs

    This AD supersedes AD 2013-11-13.

(c) Applicability

    This AD applies to all Rolls-Royce plc (RR) Viper Mk. 521, Viper 
Mk. 522, and Viper Mk. 601-22 turbojet engines.

(d) Unsafe Condition

    This AD was prompted by a review by RR of the lives of certain 
critical parts. We are issuing this AD to prevent failure of life-
limited parts, which could lead to an uncontained part release, 
damage to the engine, and damage to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Within 30 days after the effective date of this AD, or 
before any affected part exceeds its new revised life limit, 
whichever occurs later, remove any engine from service. Use Table 1 
of RR Alert Service Bulletin (ASB) Mk. 521 Number 72-A408, 
Circulation A, dated January 2015; ASB Mk. 521 Number

[[Page 61133]]

72-A408, Circulation B, dated January 2015; ASB Mk. 522 Number 72-
A413, Circulation A, dated January 2015; ASB Mk. 522 Number 72-A412, 
Circulation B, dated January 2015; and ASB Mk. 601-22 Number 72-
A207, dated January 2015, to determine the new life limits.
    (2) For the RR Viper Mk. 601-22 turbojet engine, remove 
compressor shaft, part number V900766, before the compressor shaft 
accumulates 20,720 flight cycles since new.

(f) Installation Prohibition

    After the effective date of this AD, do not install any affected 
part identified in paragraph (e) of this AD into any engine, nor 
return any engine to service with any affected part identified in 
paragraph (e) of this AD installed, if any affected part exceeds the 
life limit specified in the appropriate ASB identified in paragraph 
(e)(1) and/or the life limit identified in paragraph (e)(2) of this 
AD.

(g) Alternative Methods of Compliance (AMOCs)

    The Manager, Engine Certification Office, 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 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-
0127R1, dated August 14, 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 Docket No. FAA-
2012-1331.
    (3) RR ASB Mk. 521 Number 72-A408, Circulation A, dated January 
2015; ASB Mk. 521 Number 72-A408, Circulation B, dated January 2015; 
ASB Mk. 522 Number 72-A413, Circulation A, dated January 2015; ASB 
Mk. 522 Number 72-A412, Circulation B, dated January 2015; and ASB 
Mk. 601-22 Number 72-A207, dated January 2015, can be obtained from 
RR, using the contact information in paragraph (h)(4) of this 
proposed AD.
    (4) For service information identified in this AD, contact DA 
Services Operations Room at Rolls-Royce plc, Defense Sector Bristol, 
WH-70, P.O. Box 3, Filton, Bristol BS34 7QE, United Kingdom; phone: 
+44 (0) 117 97 90700; fax: +44 (0) 117 97 95498; email: royce.com">defence-operations-room@rolls-royce.com.
    (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 October 2, 2015.
Colleen M. D'Alessandro,
Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-25607 Filed 10-8-15; 8:45 am]
 BILLING CODE 4910-13-P

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