Airworthiness Directives; Rolls-Royce plc Turbofan Engines, 75762-75764 [2016-26334]

Download as PDF 75762 Federal Register / Vol. 81, No. 211 / Tuesday, November 1, 2016 / Proposed Rules ESTIMATED COSTS Action Labor cost Parts cost Cost per product Cost on U.S. operators Removal and replacement of the RDS assembly and RDS outer housing. 6 work-hours × $85 per hour = $510 ............. $37,000 $37,510 $300,080 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. asabaliauskas on DSK3SPTVN1PROD with PROPOSALS Regulatory Findings We 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 this 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. 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 adding the following new airworthiness directive (AD): ■ CFM International S.A.: Docket No. FAA– 2016–9128; Directorate Identifier 2016– NE–19–AD. (a) Comments Due Date We must receive comments by December 16, 2016. (b) Affected ADs None. (c) Applicability This AD applies to CFM International S.A. (CFM) CFM56–5B series, CFM56–5B/P series, CFM56–5B/3 series, CFM56–5B/2P series, CFM56–5B/P1 series, CFM56–5B/2P1 series, and CFM56–5B/3B1 series engines with a radial drive shaft (RDS) serial number (S/N) listed in Appendix A of CFM Service Bulletin (SB) CFM56–5B S/B 72–0934, dated August 1, 2016, installed. (d) Subject Air Transport Association (ATA) of America Code 83, Accessory Gearboxes. (e) Unsafe Condition This AD was prompted by reports of the failure of the RDS on CFM CFM56–5B engines. We are issuing this AD to prevent failure of the RDS, which could lead to failure of one or more engines, loss of thrust control, and damage to the airplane. List of Subjects in 14 CFR Part 39 (f) Compliance Comply with this AD within the compliance times specified, unless already done. Within 6 months after the effective date of this AD, remove the RDS assembly, part number (P/N) 305–165–101–0, and RDS outer housing, P/N 301–295–106–0, and replace with parts eligible for installation. Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. (g) Installation Prohibition After the effective date of this AD, do not install on any engine an RDS with an S/N VerDate Sep<11>2014 18:29 Oct 31, 2016 Jkt 241001 PO 00000 Frm 00021 Fmt 4702 Sfmt 4702 identified in Appendix A of CFM S/B No. CFM56–5B S/B 72–0934, dated August 1, 2016. (h) 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. (i) Related Information (1) For more information about this AD, contact Kyle Gustafson, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7183; fax: 781–238–7199; email: kyle.gustafson@faa.gov. (2) CFM SB CFM56–5B S/B 72–0934, dated August 1, 2016, can be obtained from CFM using the contact information in paragraph (i)(3) of this proposed AD. (3) For service information identified in this AD, contact CFM International Inc., Aviation Operations Center, 1 Neumann Way, M/D Room 285, Cincinnati, OH 45125; phone: 877–432–3272; fax: 877–432–3329; email: aviation.fleetsupport@ge.com. (4) You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Issued in Burlington, Massachusetts, on October 21, 2016. Colleen M. D’Alessandro, Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2016–26010 Filed 10–31–16; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2012–1327; Directorate Identifier 2012–NE–47–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) 2014–16– SUMMARY: E:\FR\FM\01NOP1.SGM 01NOP1 Federal Register / Vol. 81, No. 211 / Tuesday, November 1, 2016 / Proposed Rules asabaliauskas on DSK3SPTVN1PROD with PROPOSALS 10 that applies to all Rolls-Royce plc (RR) RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines. AD 2014– 16–10 requires initial and repetitive ultrasonic inspections (UIs) of the affected low-pressure (LP) compressor blades. Since we issued AD 2014–16– 10, RR issued revised service information to reduce the inspection threshold. This proposed AD would retain the UIs in AD 2014–16–10 while applying the revised inspection threshold. We are proposing this AD to prevent LP compressor blade airfoil separations, damage to the engine, and damage to the airplane. DATES: We must receive comments on this proposed AD by December 16, 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 http://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. • Hand Delivery: 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 NPRM, contact Rolls-Royce plc, P.O. Box 31, Derby DE24 8BJ, UK; phone: 44 0 1332 242424; fax: 44 0 1332 249936. You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, 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 http:// www.regulations.gov by searching for and locating Docket No. FAA–2012– 1327; 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: Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine VerDate Sep<11>2014 18:29 Oct 31, 2016 Jkt 241001 & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781–238–7754; fax: 781–238–7199; email: robert.green@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this NPRM. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2012–1327; Directorate Identifier 2012– NE–47–AD’’ at the beginning of your comments. We specifically invite 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 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 NPRM. Discussion On August 1, 2014, we issued AD 2014–16–10, Amendment 39–17934 (79 FR 48961, August 19, 2014), (‘‘AD 2014– 16–10’’) for all RR RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines. AD 2014–16–10 requires initial and repetitive UIs of the affected LP compressor blades. AD 2014–16–10 resulted from LP compressor blade partial airfoil blade release events. We issued AD 2014–16–10 to prevent LP compressor blade airfoil separations, damage to the engine, and damage to the airplane. Actions Since AD 2014–16–10 Was Issued Since we issued AD 2014–16–10, RR issued Alert Non-Modification Service Bulletin (NMSB) RB.211–72–AH465, Revision 2, dated May 11, 2016. The Alert NMSB reduced the inspection threshold for UI of the LP compressor blades. Also since we issued AD 2014– 16–10, the European Aviation Safety Agency (EASA) issued a correction to AD 2016–0141, dated July 20, 2016, requiring the revised inspection threshold. Related Service Information Under 1 CFR Part 51 RR has issued Alert NMSB RB.211– 72–AH465, Revision 2, dated May 11, 2016. The NMSB describes procedures for performing a UI of the LP compressor blades. This service information is reasonably available because the interested parties have PO 00000 Frm 00022 Fmt 4702 Sfmt 4702 75763 access to it through their normal course of business or by the means identified in the ADDRESSES section. 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 initial and repetitive UIs of the affected LP compressor blades. This proposed AD would require conducting the UIs at a reduced inspection threshold. Costs of Compliance We estimate that this proposed AD affects 56 engines installed on airplanes of U.S. registry. We also estimate that it would take about 40 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 $190,400. 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: E:\FR\FM\01NOP1.SGM 01NOP1 75764 Federal Register / Vol. 81, No. 211 / Tuesday, November 1, 2016 / Proposed Rules (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) 2014–16–10, Amendment 39–17934 (79 FR 48961, August 19, 2014), and adding the following new AD: ■ Rolls-Royce plc: Docket No. FAA–2012– 1327; Directorate Identifier 2012–NE– 47–AD. (a) Comments Due Date We must receive comments by December 16, 2016. (b) Affected ADs This AD supersedes AD 2014–16–10, Amendment 39–17934 (79 FR 48961, August 19, 2014). asabaliauskas on DSK3SPTVN1PROD with PROPOSALS (c) Applicability This AD applies to Rolls-Royce plc (RR) RB211 Trent 768–60, 772–60, and 772B–60 turbofan engines, with low-pressure (LP) compressor blade, part number (P/N) FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, FW23744, KH23403, or KH23404, installed. (d) Unsafe Condition This AD was prompted by LP compressor blade partial airfoil release events. We are issuing this AD to prevent LP compressor blade airfoil separations, damage to the engine, and damage to the airplane. (e) Compliance Comply with this AD within the compliance times specified, unless already done. VerDate Sep<11>2014 18:29 Oct 31, 2016 Jkt 241001 (1) Ultrasonic Inspection (UI) of LP Compressor Blade (i) After the effective date of this AD, for LP compressor blades that have accumulated less than 1,800 cycles since new (CSN) or cycles since last inspection (CSLI), perform a UI of each LP compressor blade before the blade exceeds 2,400 CSN or CSLI. Repeat the UI of the blade before exceeding 2,400 CSLI. (ii) For any LP compressor blade that exceeds 1,800 CSN on the effective date of this AD, inspect the blade before exceeding 600 flight cycles after the effective date of this AD or before exceeding 3,600 CSN, whichever occurs first. Thereafter, perform the repetitive inspections before exceeding 2,400 CSLI. (iii) For any blade that exceeds 2,200 CSLI on September 23, 2014 (the effective date of AD 2014–16–10), inspect the blade before exceeding 3,000 CSLI or before further flight, whichever occurs later. Thereafter, perform the repetitive inspections before exceeding 2,400 CSLI. (iv) Use paragraph 3, excluding subparagraphs 3.C.(2)(b), 3.D.(2) and 3.G, of RR Alert Non-Modification Service Bulletin (NMSB) RB.211–72–AH465, Revision 2, dated May 11, 2016, to perform the inspections required by this AD. (2) Use of Replacement Blades (i) After the effective date of this AD, LP compressor blade, P/N FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, FW23744, KH23403, or KH23404, that has accumulated at least 2,400 CSN or CSLI is eligible for installation if the blade has passed the UI required by this AD. (ii) Reserved. obtained from RR, using the contact information in paragraph (h)(4) of this AD. (4) For service information identified in this AD, contact Rolls-Royce plc, P.O. Box 31, Derby DE24 8BJ, UK; phone: 44 0 1332 242424; fax: 44 0 1332 249936. (5) You may view this service information at the FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. (f) Credit for Previous Actions You may take credit for the UI required by paragraph (e) of this AD, if you performed the UI before the effective date of this AD using RR NMSB No. RB.211–72–G702, dated May 23, 2011; or RR NMSB No. RB.211–72–G872, Revision 2, dated March 8, 2013, or earlier revisions; or RR NMSB No. RB.211–72–H311, dated March 8, 2013; or the Engine Manual E-Trent-1RR, Task 72–31–11–200–806. SUMMARY: (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 Robert Green, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7754; fax: 781–238–7199; email: robert.green@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2016–0141, dated July 20, 2016, for more information. You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov by searching for and locating it in Docket No. FAA–2012–1327. (3) RR Alert NMSB RB.211–72–AH465, Revision 2, dated May 11, 2016, can be PO 00000 Frm 00023 Fmt 4702 Sfmt 4702 Issued in Burlington, Massachusetts, on October 26, 2016. Colleen M. D’Alessandro, Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2016–26334 Filed 10–31–16; 8:45 am] BILLING CODE 4910–13–P ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA–R09–OAR–2016–0244; FRL–9954–76– Region 9] Approval and Promulgation of Implementation Plans; State of California; Coachella Valley; Attainment Plan for 1997 8-Hour Ozone Standards Environmental Protection Agency (EPA). ACTION: Proposed rule. AGENCY: The Environmental Protection Agency (EPA) is proposing to approve state implementation plan (SIP) revisions submitted by the State of California to provide for attainment of the 1997 8-hour ozone national ambient air quality standards in the Coachella Valley nonattainment area. The EPA is proposing to find the emissions inventories to be acceptable and to approve the reasonably available control measures, transportation control strategies and measures, rate of progress and reasonable further progress demonstrations, attainment demonstration, vehicle miles traveled offset demonstration and the transportation conformity motor vehicle emission budgets. DATES: Any comments must be submitted by December 1, 2016. ADDRESSES: Submit your comments, identified by Docket ID No. EPA–R09– OAR–2016–0244 at http:// www.regulations.gov, or via email to kelly.thomasp@epa.gov. For comments submitted at Regulations.gov, follow the online instructions for submitting comments. Once submitted, comments cannot be edited or removed from Regulations.gov. For either manner of submission, the EPA may publish any E:\FR\FM\01NOP1.SGM 01NOP1

Agencies

[Federal Register Volume 81, Number 211 (Tuesday, November 1, 2016)]
[Proposed Rules]
[Pages 75762-75764]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2016-26334]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-1327; Directorate Identifier 2012-NE-47-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) 2014-16-

[[Page 75763]]

10 that applies to all Rolls-Royce plc (RR) RB211 Trent 768-60, 772-60, 
and 772B-60 turbofan engines. AD 2014-16-10 requires initial and 
repetitive ultrasonic inspections (UIs) of the affected low-pressure 
(LP) compressor blades. Since we issued AD 2014-16-10, RR issued 
revised service information to reduce the inspection threshold. This 
proposed AD would retain the UIs in AD 2014-16-10 while applying the 
revised inspection threshold. We are proposing this AD to prevent LP 
compressor blade airfoil separations, damage to the engine, and damage 
to the airplane.

DATES: We must receive comments on this proposed AD by December 16, 
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 http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: 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 NPRM, contact Rolls-
Royce plc, P.O. Box 31, Derby DE24 8BJ, UK; phone: 44 0 1332 242424; 
fax: 44 0 1332 249936. You may view this service information at the 
FAA, Engine & Propeller Directorate, 1200 District Avenue, 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 http://www.regulations.gov by searching for and locating Docket No. FAA-2012-
1327; 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: Robert Green, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 1200 
District Avenue, Burlington, MA 01803; phone: 781-238-7754; fax: 781-
238-7199; email: robert.green@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this NPRM. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2012-1327; 
Directorate Identifier 2012-NE-47-AD'' at the beginning of your 
comments. We specifically invite 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 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 NPRM.

Discussion

    On August 1, 2014, we issued AD 2014-16-10, Amendment 39-17934 (79 
FR 48961, August 19, 2014), (``AD 2014-16-10'') for all RR RB211 Trent 
768-60, 772-60, and 772B-60 turbofan engines. AD 2014-16-10 requires 
initial and repetitive UIs of the affected LP compressor blades. AD 
2014-16-10 resulted from LP compressor blade partial airfoil blade 
release events. We issued AD 2014-16-10 to prevent LP compressor blade 
airfoil separations, damage to the engine, and damage to the airplane.

Actions Since AD 2014-16-10 Was Issued

    Since we issued AD 2014-16-10, RR issued Alert Non-Modification 
Service Bulletin (NMSB) RB.211-72-AH465, Revision 2, dated May 11, 
2016. The Alert NMSB reduced the inspection threshold for UI of the LP 
compressor blades. Also since we issued AD 2014-16-10, the European 
Aviation Safety Agency (EASA) issued a correction to AD 2016-0141, 
dated July 20, 2016, requiring the revised inspection threshold.

Related Service Information Under 1 CFR Part 51

    RR has issued Alert NMSB RB.211-72-AH465, Revision 2, dated May 11, 
2016. The NMSB describes procedures for performing a UI of the LP 
compressor blades. This service information is reasonably available 
because the interested parties have access to it through their normal 
course of business or by the means identified in the ADDRESSES section.

FAA's Determination

    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 initial and repetitive UIs of the 
affected LP compressor blades. This proposed AD would require 
conducting the UIs at a reduced inspection threshold.

Costs of Compliance

    We estimate that this proposed AD affects 56 engines installed on 
airplanes of U.S. registry. We also estimate that it would take about 
40 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 $190,400.

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:

[[Page 75764]]

    (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) 
2014-16-10, Amendment 39-17934 (79 FR 48961, August 19, 2014), and 
adding the following new AD:

Rolls-Royce plc: Docket No. FAA-2012-1327; Directorate Identifier 
2012-NE-47-AD.

(a) Comments Due Date

    We must receive comments by December 16, 2016.

(b) Affected ADs

    This AD supersedes AD 2014-16-10, Amendment 39-17934 (79 FR 
48961, August 19, 2014).

(c) Applicability

    This AD applies to Rolls-Royce plc (RR) RB211 Trent 768-60, 772-
60, and 772B-60 turbofan engines, with low-pressure (LP) compressor 
blade, part number (P/N) FK23411, FK25441, FK25968, FW11901, 
FW15393, FW23643, FW23741, FW23744, KH23403, or KH23404, installed.

(d) Unsafe Condition

    This AD was prompted by LP compressor blade partial airfoil 
release events. We are issuing this AD to prevent LP compressor 
blade airfoil separations, damage to the engine, and damage to the 
airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Ultrasonic Inspection (UI) of LP Compressor Blade
    (i) After the effective date of this AD, for LP compressor 
blades that have accumulated less than 1,800 cycles since new (CSN) 
or cycles since last inspection (CSLI), perform a UI of each LP 
compressor blade before the blade exceeds 2,400 CSN or CSLI. Repeat 
the UI of the blade before exceeding 2,400 CSLI.
    (ii) For any LP compressor blade that exceeds 1,800 CSN on the 
effective date of this AD, inspect the blade before exceeding 600 
flight cycles after the effective date of this AD or before 
exceeding 3,600 CSN, whichever occurs first. Thereafter, perform the 
repetitive inspections before exceeding 2,400 CSLI.
    (iii) For any blade that exceeds 2,200 CSLI on September 23, 
2014 (the effective date of AD 2014-16-10), inspect the blade before 
exceeding 3,000 CSLI or before further flight, whichever occurs 
later. Thereafter, perform the repetitive inspections before 
exceeding 2,400 CSLI.
    (iv) Use paragraph 3, excluding subparagraphs 3.C.(2)(b), 
3.D.(2) and 3.G, of RR Alert Non-Modification Service Bulletin 
(NMSB) RB.211-72-AH465, Revision 2, dated May 11, 2016, to perform 
the inspections required by this AD.
    (2) Use of Replacement Blades
    (i) After the effective date of this AD, LP compressor blade, P/
N FK23411, FK25441, FK25968, FW11901, FW15393, FW23643, FW23741, 
FW23744, KH23403, or KH23404, that has accumulated at least 2,400 
CSN or CSLI is eligible for installation if the blade has passed the 
UI required by this AD.
    (ii) Reserved.

(f) Credit for Previous Actions

    You may take credit for the UI required by paragraph (e) of this 
AD, if you performed the UI before the effective date of this AD 
using RR NMSB No. RB.211-72-G702, dated May 23, 2011; or RR NMSB No. 
RB.211-72-G872, Revision 2, dated March 8, 2013, or earlier 
revisions; or RR NMSB No. RB.211-72-H311, dated March 8, 2013; or 
the Engine Manual E-Trent-1RR, Task 72-31-11-200-806.

(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 Robert Green, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 1200 District Avenue, Burlington, MA 01803; 
phone: 781-238-7754; fax: 781-238-7199; email: robert.green@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency AD 2016-0141, 
dated July 20, 2016, for more information. You may examine the MCAI 
in the AD docket on the Internet at http://www.regulations.gov by 
searching for and locating it in Docket No. FAA-2012-1327.
    (3) RR Alert NMSB RB.211-72-AH465, Revision 2, dated May 11, 
2016, can be obtained from RR, using the contact information in 
paragraph (h)(4) of this AD.
    (4) For service information identified in this AD, contact 
Rolls-Royce plc, P.O. Box 31, Derby DE24 8BJ, UK; phone: 44 0 1332 
242424; fax: 44 0 1332 249936.
    (5) You may view this service information at the FAA, Engine & 
Propeller Directorate, 1200 District Avenue, Burlington, MA. For 
information on the availability of this material at the FAA, call 
781-238-7125.


    Issued in Burlington, Massachusetts, on October 26, 2016.
Colleen M. D'Alessandro,
Manager, Engine & Propeller Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-26334 Filed 10-31-16; 8:45 am]
 BILLING CODE 4910-13-P