Airworthiness Directives; Rolls-Royce plc Turbofan Engines, 70489-70491 [2013-28178]

Download as PDF Federal Register / Vol. 78, No. 228 / Tuesday, November 26, 2013 / Rules and Regulations 70489 TABLE 1 TO PARAGRAPH (C)—NEW REDUCED CYCLIC LIFE LIMITS FOR HIGH-PRESSURE (HP)/INTERMEDIATE-PRESSURE (IP) TURBINE DISCS Engine RB211–535E4–37,–535E4–B–37, –535E4–C–37 .......... RB211 Trent 768–60, 772–60, and 772B–60 ................. (d) Reason This AD was prompted by a report of an HP disc contaminated with a steel inclusion. We are issuing this AD to prevent failure of the HP or IP turbine disc, uncontained engine failure, and damage to the airplane. (e) Actions and Compliance Comply with this AD within the compliance times specified, unless already done. (1) Remove from service, within 30 days, any HP or IP disc identified in Table 1 to paragraph (c) of this AD that has exceeded the new cyclic life limit, or before the disc accumulates flight cycles that equal the new reduced cyclic life limit listed in Table 1 to paragraph (c) of this AD, whichever is later. (2) Do not approve for return to service any engine with any installed HP or IP turbine disc listed in Table 1 to paragraph (c) of this AD, if the disc exceeds the new reduced cyclic life limit listed in Table 1 to paragraph (c) of this AD. (f) 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. rmajette on DSK2TPTVN1PROD with RULES (g) Related Information UL39767 UL39767 UL39767 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK26893 FK20795 FK20795 FK20795 FK20795 FK20795 ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ ............................ or FW53118 ....... or FW53118 ....... or FW53118 ....... or FW53118 ....... or FW53118 ....... 14:32 Nov 25, 2013 New reduced cyclic life limit LDRCZ19900 ..................... LDRCZ19903. LDRCZ19904. LDRCZ19901 ..................... LDRCZ20081. LDRCZ20082. LDRCZ20084. LDRCZ20088. LDRCZ20089. LDRCZ20090. LDRCZ20093. LDRCZ20094. LDRCZ20097. LDRCZ20099. LDRCZ20100. LDREB12176 ..................... LDREB12177. LDREB12178. LDREB12179. LDREB12180. 11,400 flight cycles (FCs). (3) Rolls-Royce plc, Alert NonModification Service Bulletin No. RB.211– 72–AH215, dated December 6, 2012 and RB.211–72–AH152, Revision 1, dated July 3, 2013, which are not incorporated by reference in this AD, 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, UK; phone: 44–0–1332–242424; fax: 44– 0–1332–249936; email: https://www.rollsroyce.com/contact/civil_team.jsp. (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. (h) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on November 8, 2013. Colleen M. D’Alessandro, Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2013–28221 Filed 11–25–13; 8:45 am] BILLING CODE 4910–13–P (1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7779; fax: 781–238–7199; email: frederick.zink@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2012–0155, dated July 18, 2013. 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–2013–0750. VerDate Mar<15>2010 S/Ns P/Ns Jkt 232001 PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 8,687 FCs. 9,270 FCs. DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2013–0880; Directorate Identifier 2013–NE–28–AD; Amendment 39– 17667; AD 2013–23–12] RIN 2120–AA64 Airworthiness Directives; Rolls-Royce plc Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule; request for comments. AGENCY: We are adopting a new airworthiness directive (AD) for all Rolls-Royce plc (RR) RB211 Trent 553– 61, 553A2–61, 556–61, 556A2–61, 556B–61, 556B2–61, 560–61, and 560A2–61 turbofan engines. This AD requires replacement or repair of the low-pressure (LP) compressor fan blade set before reaching a specified number of flight cycles since new (FCSN) or flight cycles since last leading edge profile blade repair (FCSLR). This AD was prompted by reports of erosion of the leading edge profile of the LP compressor blade set contributing to fan blade flutter. We are issuing this AD to prevent failure of the LP compressor blades, which could lead to an uncontained engine failure and damage to the airplane. DATES: This AD becomes effective December 11, 2013. We must receive comments on this AD by January 10, 2014. SUMMARY: E:\FR\FM\26NOR1.SGM 26NOR1 70490 Federal Register / Vol. 78, No. 228 / Tuesday, November 26, 2013 / Rules and Regulations You may send comments by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your comments electronically. • Mail: U.S. Department of Transportation, 1200 New Jersey Avenue SE., West Building Ground Floor, Room W12–140, Washington, DC 20590–0001. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. • Fax: 202–493–2251. For service information identified in this AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, UK; phone: 44–0– 1332–242424; fax: 44–0–1332–249936; email: https://www.rolls-royce.com/ contact/civil_team.jsp. 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. ADDRESSES: Examining the AD Docket You may examine the AD docket on the Internet at https:// www.regulations.gov; or in person at the Docket Operations office between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the mandatory continuing airworthiness information (MCAI), the regulatory evaluation, any comments received, and other information. The street address for the Docket Operations office (phone: 800– 647–5527) is the same as the Mail address provided in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238 7779; fax: 781–238 7199; email: frederick.zink@faa.gov. SUPPLEMENTARY INFORMATION: rmajette on DSK2TPTVN1PROD with RULES Discussion The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Community, has issued EASA Airworthiness Directive 2013–0214, dated September 16, 2013 (referred to herein after as ‘‘the MCAI’’), to correct an unsafe condition for the specified products. The MCAI states: Erosion of the leading edge profile of Trent 500 engines’ low pressure (LP) compressor VerDate Mar<15>2010 14:32 Nov 25, 2013 Jkt 232001 blades is proven to contribute to fan flutter, a risk that is mitigated by regular restoration of the leading edge of these blades. Recently, Rolls-Royce has conducted a review regarding the in-service restoration of the leading edge profile of LP compressor blades. The results of this review concluded that not all LP compressor blades have been restored as intended. This condition, if not corrected, could lead to fan flutter, LP compressor blade cracking and uncontained LP compressor blade failures, possibly resulting in damage to, and reduced control of, the aeroplane. For the reasons described above, this AD requires initial and repetitive leading edge restoration of the LP compressor blades. You may obtain further information by examining the MCAI in the AD docket on the Internet at https:// www.regulations.gov by searching for and locating it in Docket No. FAA– 2013–0880. Relevant Service Information RR has issued Alert Non-Modification Service Bulletin No. RB.211–72–AH149, Revision 1, dated May 3, 2013 and RB.211–72–H464, dated August 28, 2013. The actions described in this service information are intended to correct the unsafe condition identified in the MCAI. FAA’s Determination and Requirements of This AD This product has been approved by the aviation authority of the United Kingdom and is approved for operation in the United States. Pursuant to our bilateral agreement with the European Community, EASA has notified us of the unsafe condition described in the MCAI and service information referenced above. We are issuing this AD because we evaluated all information provided by EASA and determined the unsafe condition exists and is likely to exist or develop on other products of the same type design. FAA’s Determination of the Effective Date No domestic operators use this product. Therefore, we find that notice and opportunity for prior public comment are unnecessary and that good cause exists for making this amendment effective in less than 30 days. Comments Invited This AD is a final rule that involves requirements affecting flight safety, and we did not precede it by notice and opportunity for public comment. We invite you to send any written relevant data, views, or arguments about this AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2013–0880; PO 00000 Frm 00006 Fmt 4700 Sfmt 4700 Directorate Identifier 2013–NE–28–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this AD. We will consider all comments received by the closing date and may amend this 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 with FAA personnel concerning this AD. Using the search function of the Web site, anyone can find and read the comments in any of our dockets, including, if provided, the name of the individual who sent the comment (or signed the comment on behalf of an association, business, labor union, etc.). You may review the DOT’s complete Privacy Act Statement in the Federal Register published on April 11, 2000 (65 FR 19477–78). Costs of Compliance We estimate that this AD would affect 0 engines installed on airplanes of U.S. registry. We also estimate that it would take about 6 hours per engine to comply with this AD. The average labor rate is $85 per hour. Based on these figures, we estimate the total cost of this AD to U.S. operators is $0. 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 determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, E:\FR\FM\26NOR1.SGM 26NOR1 Federal Register / Vol. 78, No. 228 / Tuesday, November 26, 2013 / Rules and Regulations 70491 or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska 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. We prepared a regulatory evaluation of the estimated costs to comply with this AD and placed it in the AD docket. (e) Actions and Compliance Comply with this AD within the compliance times specified, unless already done. (1) If on the effective date of this AD, the LP compressor fan blades: (i) Have less that 3,750 flight cycles since new (FCSN) or flight cycles since last leading edge profile blade repair (FCSLR), replace or repair the LP compressor fan blade set before accumulating 4,000 FCSN or FCSLR; (ii) Have 3,750 or more FCSN or FCSLR, but less than 4,400 FCSN or FCSLR, replace or repair the LP compressor fan blade set within 250 flight cycles (FC), but not later than 4,500 FCSN or FCSLR; (iii) Have 4,400 FCSN or FCSLR or more, replace or repair the LP compressor fan blade set within 100 FC; or (iv) Have FCSN or FCSLR that are unknown, replace or repair the LP compressor fan blade set within 100 FC. (2) Thereafter, replace or repair the LP compressor fan blade set within every 4,000 FCSN or FCSLR. 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. List of Subjects in 14 CFR Part 39 (f) Definition LP compressor fan blades eligible for installation are: (1) LP compressor fan blades with less than 4,000 FCSN; or (2) LP compressor fan blades with less than 4,000 FCSLR, if LP compressor fan blades were repaired using RR Alert NonModification Service Bulletin No. RB.211– 72–AH149, Revision 1, dated May 3, 2013 or earlier version or, for initial restoration only, RB.211–72–H464, dated August 28, 2013. Standard Instrument Approach Procedures, and Takeoff Minimums and Obstacle Departure Procedures; Miscellaneous Amendments Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39—AIRWORTHINESS DIRECTIVES 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): ■ 2013–23–12 Rolls-Royce plc: Amendment 39–17667; Docket No. FAA–2013–0880; Directorate Identifier 2013–NE–28–AD. (a) Effective Date This AD is effective December 11, 2013. (b) Affected ADs None. rmajette on DSK2TPTVN1PROD with RULES (c) Applicability This AD applies to all Rolls-Royce plc (RR) RB211 Trent 553–61, 553A2–61, 556–61, 556A2–61, 556B–61, 556B2–61, 560–61, and 560A2–61 turbofan engines. (d) Reason This AD was prompted by reports of erosion of the leading edge profile of the lowpressure (LP) compressor blade set contributing to fan blade flutter. We are issuing this AD to prevent failure of the LP compressor blades, which could lead to an uncontained engine failure and damage to the airplane. VerDate Mar<15>2010 14:32 Nov 25, 2013 Jkt 232001 (g) 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. (h) Related Information (1) For more information about this AD, contact Frederick Zink, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7779; fax: 781–238–7199; email: frederick.zink@faa.gov. (2) Refer to MCAI European Aviation Safety Agency, AD 2013–0214, dated September 16, 2013, 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–2013–0880. (3) Rolls-Royce plc Alert Non-Modification Service Bulletin No. RB.211–72–AH149, Revision 1, dated May 3, 2013 and RB.211– 72–H464, dated August 28, 2013, which are not incorporated by reference in this AD, 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, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, UK; phone: 44–0–1332–242424; fax: 44– 0–1332–249936; email: https://www.rollsroyce.com/contact/civil_team.jsp. (5) You may view this service information at the FAA, Engine & Propeller Directorate, PO 00000 Frm 00007 Fmt 4700 Sfmt 4700 (i) Material Incorporated by Reference None. Issued in Burlington, Massachusetts, on November 8, 2013. Colleen M. D’Alessandro, Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2013–28178 Filed 11–25–13; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 97 [Docket No. 30930; Amdt. No. 3565] Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: This rule establishes, amends, suspends, or revokes Standard Instrument Approach Procedures (SIAPs) and associated Takeoff Minimums and Obstacle Departure Procedures for operations at certain airports. These regulatory actions are needed because of the adoption of new or revised criteria, or because of changes occurring in the National Airspace System, such as the commissioning of new navigational facilities, adding new obstacles, or changing air traffic requirements. These changes are designed to provide safe and efficient use of the navigable airspace and to promote safe flight operations under instrument flight rules at the affected airports. DATES: This rule is effective November 26, 2013. The compliance date for each SIAP, associated Takeoff Minimums, and ODP is specified in the amendatory provisions. The incorporation by reference of certain publications listed in the regulations is approved by the Director of the Federal Register as of November 26, 2013. ADDRESSES: Availability of matter incorporated by reference in the amendment is as follows: For Examination— 1. FAA Rules Docket, FAA Headquarters Building, 800 Independence Avenue SW., Washington, DC 20591; SUMMARY: E:\FR\FM\26NOR1.SGM 26NOR1

Agencies

[Federal Register Volume 78, Number 228 (Tuesday, November 26, 2013)]
[Rules and Regulations]
[Pages 70489-70491]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2013-28178]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2013-0880; Directorate Identifier 2013-NE-28-AD; 
Amendment 39-17667; AD 2013-23-12]
RIN 2120-AA64


Airworthiness Directives; Rolls-Royce plc Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all 
Rolls-Royce plc (RR) RB211 Trent 553-61, 553A2-61, 556-61, 556A2-61, 
556B-61, 556B2-61, 560-61, and 560A2-61 turbofan engines. This AD 
requires replacement or repair of the low-pressure (LP) compressor fan 
blade set before reaching a specified number of flight cycles since new 
(FCSN) or flight cycles since last leading edge profile blade repair 
(FCSLR). This AD was prompted by reports of erosion of the leading edge 
profile of the LP compressor blade set contributing to fan blade 
flutter. We are issuing this AD to prevent failure of the LP compressor 
blades, which could lead to an uncontained engine failure and damage to 
the airplane.

DATES: This AD becomes effective December 11, 2013.
    We must receive comments on this AD by January 10, 2014.

[[Page 70490]]


ADDRESSES: You may send comments by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: U.S. Department of Transportation, 1200 New Jersey 
Avenue SE., West Building Ground Floor, Room W12-140, Washington, DC 
20590-0001.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
     Fax: 202-493-2251.
    For service information identified in this AD, contact Rolls-Royce 
plc, Corporate Communications, P.O. Box 31, Derby, DE24 8BJ, UK; phone: 
44-0-1332-242424; fax: 44-0-1332-249936; email: https://www.rolls-royce.com/contact/civil_team.jsp. 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.

Examining the AD Docket

    You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The AD docket contains this AD, the mandatory continuing 
airworthiness information (MCAI), the regulatory evaluation, any 
comments received, and other information. The street address for the 
Docket Operations office (phone: 800-647-5527) is the same as the Mail 
address provided in the ADDRESSES section. Comments will be available 
in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Frederick Zink, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: 781-238 7779; 
fax: 781-238 7199; email: frederick.zink@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

    The European Aviation Safety Agency (EASA), which is the Technical 
Agent for the Member States of the European Community, has issued EASA 
Airworthiness Directive 2013-0214, dated September 16, 2013 (referred 
to herein after as ``the MCAI''), to correct an unsafe condition for 
the specified products. The MCAI states:

    Erosion of the leading edge profile of Trent 500 engines' low 
pressure (LP) compressor blades is proven to contribute to fan 
flutter, a risk that is mitigated by regular restoration of the 
leading edge of these blades. Recently, Rolls-Royce has conducted a 
review regarding the in-service restoration of the leading edge 
profile of LP compressor blades. The results of this review 
concluded that not all LP compressor blades have been restored as 
intended.
    This condition, if not corrected, could lead to fan flutter, LP 
compressor blade cracking and uncontained LP compressor blade 
failures, possibly resulting in damage to, and reduced control of, 
the aeroplane.
    For the reasons described above, this AD requires initial and 
repetitive leading edge restoration of the LP compressor blades.

You may obtain further information by examining the MCAI in the AD 
docket on the Internet at https://www.regulations.gov by searching for 
and locating it in Docket No. FAA-2013-0880.

Relevant Service Information

    RR has issued Alert Non-Modification Service Bulletin No. RB.211-
72-AH149, Revision 1, dated May 3, 2013 and RB.211-72-H464, dated 
August 28, 2013. The actions described in this service information are 
intended to correct the unsafe condition identified in the MCAI.

FAA's Determination and Requirements of This AD

    This product has been approved by the aviation authority of the 
United Kingdom and is approved for operation in the United States. 
Pursuant to our bilateral agreement with the European Community, EASA 
has notified us of the unsafe condition described in the MCAI and 
service information referenced above. We are issuing this AD because we 
evaluated all information provided by EASA and determined the unsafe 
condition exists and is likely to exist or develop on other products of 
the same type design.

FAA's Determination of the Effective Date

    No domestic operators use this product. Therefore, we find that 
notice and opportunity for prior public comment are unnecessary and 
that good cause exists for making this amendment effective in less than 
30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety, and we did not precede it by notice and opportunity for public 
comment. We invite you to send any written relevant data, views, or 
arguments about this AD. Send your comments to an address listed under 
the ADDRESSES section. Include ``Docket No. FAA-2013-0880; Directorate 
Identifier 2013-NE-28-AD'' at the beginning of your comments. We 
specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this AD. We will consider all 
comments received by the closing date and may amend this 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 
with FAA personnel concerning this AD. Using the search function of the 
Web site, anyone can find and read the comments in any of our dockets, 
including, if provided, the name of the individual who sent the comment 
(or signed the comment on behalf of an association, business, labor 
union, etc.). You may review the DOT's complete Privacy Act Statement 
in the Federal Register published on April 11, 2000 (65 FR 19477-78).

Costs of Compliance

    We estimate that this AD would affect 0 engines installed on 
airplanes of U.S. registry. We also estimate that it would take about 6 
hours per engine to comply with this AD. The average labor rate is $85 
per hour. Based on these figures, we estimate the total cost of this AD 
to U.S. operators is $0.

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 determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States,

[[Page 70491]]

or on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska 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.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this AD and placed it in the AD docket.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA amends 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

2013-23-12 Rolls-Royce plc: Amendment 39-17667; Docket No. FAA-2013-
0880; Directorate Identifier 2013-NE-28-AD.

(a) Effective Date

    This AD is effective December 11, 2013.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Rolls-Royce plc (RR) RB211 Trent 553-61, 
553A2-61, 556-61, 556A2-61, 556B-61, 556B2-61, 560-61, and 560A2-61 
turbofan engines.

(d) Reason

    This AD was prompted by reports of erosion of the leading edge 
profile of the low-pressure (LP) compressor blade set contributing 
to fan blade flutter. We are issuing this AD to prevent failure of 
the LP compressor blades, which could lead to an uncontained engine 
failure and damage to the airplane.

(e) Actions and Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) If on the effective date of this AD, the LP compressor fan 
blades:
    (i) Have less that 3,750 flight cycles since new (FCSN) or 
flight cycles since last leading edge profile blade repair (FCSLR), 
replace or repair the LP compressor fan blade set before 
accumulating 4,000 FCSN or FCSLR;
    (ii) Have 3,750 or more FCSN or FCSLR, but less than 4,400 FCSN 
or FCSLR, replace or repair the LP compressor fan blade set within 
250 flight cycles (FC), but not later than 4,500 FCSN or FCSLR;
    (iii) Have 4,400 FCSN or FCSLR or more, replace or repair the LP 
compressor fan blade set within 100 FC; or
    (iv) Have FCSN or FCSLR that are unknown, replace or repair the 
LP compressor fan blade set within 100 FC.
    (2) Thereafter, replace or repair the LP compressor fan blade 
set within every 4,000 FCSN or FCSLR.

(f) Definition

    LP compressor fan blades eligible for installation are:
    (1) LP compressor fan blades with less than 4,000 FCSN; or
    (2) LP compressor fan blades with less than 4,000 FCSLR, if LP 
compressor fan blades were repaired using RR Alert Non-Modification 
Service Bulletin No. RB.211-72-AH149, Revision 1, dated May 3, 2013 
or earlier version or, for initial restoration only, RB.211-72-H464, 
dated August 28, 2013.

(g) 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.

(h) Related Information

    (1) For more information about this AD, contact Frederick Zink, 
Aerospace Engineer, Engine Certification Office, FAA, Engine & 
Propeller Directorate, 12 New England Executive Park, Burlington, MA 
01803; phone: 781-238-7779; fax: 781-238-7199; email: 
frederick.zink@faa.gov.
    (2) Refer to MCAI European Aviation Safety Agency, AD 2013-0214, 
dated September 16, 2013, 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-2013-0880.
    (3) Rolls-Royce plc Alert Non-Modification Service Bulletin No. 
RB.211-72-AH149, Revision 1, dated May 3, 2013 and RB.211-72-H464, 
dated August 28, 2013, which are not incorporated by reference in 
this AD, 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, Corporate Communications, P.O. Box 31, Derby, DE24 
8BJ, UK; phone: 44-0-1332-242424; fax: 44-0-1332-249936; email: 
https://www.rolls-royce.com/contact/civil_team.jsp.
    (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.

(i) Material Incorporated by Reference

    None.

    Issued in Burlington, Massachusetts, on November 8, 2013.
Colleen M. D'Alessandro,
Assistant Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2013-28178 Filed 11-25-13; 8:45 am]
BILLING CODE 4910-13-P
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