Airworthiness Directives; Pratt & Whitney Turbofan Engines, 22140-22142 [2015-08995]

Download as PDF 22140 Federal Register / Vol. 80, No. 76 / Tuesday, April 21, 2015 / Proposed Rules of the inspections of paragraphs (e)(1), (e)(2), or (e)(3) of this AD, you must still continue to perform the repetitive inspections of paragraphs (e)(1), (e)(2), and (e)(3) of this AD. (5) Any reports requested in the NMSB accomplishment instructions referenced in paragraphs (e)(1), (e)(2), and (e)(3) of this AD are not required by this AD. (f) Credit for Previous Actions If, before the effective date of this AD, you performed the inspections and corrective actions required by paragraph (e)(2) of this AD using RR NMSB No. RB.211–73–G848, Revision 3, dated June 12, 2014, or earlier versions, you met the initial inspection requirements of paragraph (e)(2) of this AD. (g) Definitions For the purposes of this AD: (1) An ‘‘engine shop visit’’ is the induction of an engine into the shop for maintenance involving the separation of pairs of major mating engine flanges, except that the separation of engine flanges solely for the purposes of transportation without subsequent engine maintenance is not an engine shop visit. (2) The fan case LP fuel tubes and clips, and the FOHE mounts and hardware, are eligible for installation if they have passed the inspection requirements of paragraphs (e)(1), (e)(2), and (e)(3) of this AD. tkelley on DSK3SPTVN1PROD with PROPOSALS (h) Alternative Methods of Compliance (AMOCs) The Manager, Engine Certification Office, FAA, may approve AMOCs to this AD. Use the procedures found in 14 CFR 39.19 to make your request. You may email your request to: ANE-AD-AMOC@faa.gov. (i) Related Information (1) For more information about this AD, contact Wego Wang, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7134; fax: 781–238–7199; email: wego.wang@faa.gov. (2) Refer to MCAI European Aviation Safety Agency AD 2014–0243R1, dated December 10, 2014 for more information. You may examine the MCAI in the AD docket on the Internet at http:// www.regulations.gov/#!docketDetail;D=FAA2014-0363. (3) RR Alert NMSB No. RB.211–73–AH522, Revision 2, dated July 18, 2014, and earlier versions; RR NMSB No. RB.211–73–AH837, initial issue, dated September 9, 2014; and RR NMSB No. RB.211–73–G848, Revision 3, dated June 12, 2014, and earlier versions; which are not incorporated by reference in this AD, can be obtained from Rolls-Royce plc, using the contact information in paragraph (i)(4) of this proposed AD. (4) For service information identified in this proposed AD, contact Rolls-Royce plc, Corporate Communications, P.O. Box 31, Derby, England, DE24 8BJ; phone: 011–44– 1332–242424; fax: 011–44–1332–249936; email: http://www.rolls-royce.com/contact/ civil_team.jsp; Internet: https:// www.aeromanager.com. (5) You may view this service information at the FAA, Engine & Propeller Directorate, VerDate Sep<11>2014 17:28 Apr 20, 2015 Jkt 235001 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 April 7, 2015. Ann C. Mollica, Acting Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015–09001 Filed 4–20–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2014–1130; Directorate Identifier 2015–NE–04–AD] RIN 2120–AA64 Airworthiness Directives; Pratt & Whitney Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for all Pratt & Whitney (PW) PW4164–1D, PW4168– 1D, PW4168A–1D and PW4170 engines, and certain PW4164, PW4168, and PW4168A turbofan engines. This proposed AD was prompted by fuel nozzle-to-fuel supply manifold interface fuel leaks. This proposed AD would require inspecting fuel nozzles for signs of leakage, replacing hardware as required, and torqueing to specified requirement. We are proposing this AD to prevent fuel leaks which could result in engine fire and damage to the airplane. SUMMARY: We must receive comments on this proposed AD by June 22, 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 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 proposed AD, contact Pratt & Whitney, 400 Main St., East Hartford, DATES: PO 00000 Frm 00005 Fmt 4702 Sfmt 4702 CT 06108; phone: 860–565–8770; fax: 860–565–4503. You may view this service information at the FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA. For information on the availability of this material at the FAA, call 781–238–7125. Examining the AD Docket You may examine the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2014– 1130; 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: Katheryn Malatek, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7747; fax: 781–238– 7199; email: katheryn.malatek@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– 2014–1130; Directorate Identifier 2015– NE–04–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 We received reports of four fuel nozzle leaks in service and an additional six fuel nozzle leaks found during shop visits. The root cause is inadequate torque of the fuel nozzle-tofuel supply manifold B-nuts for the temperatures that the fuel nozzles experience. This condition, if not corrected, could result in engine fire and damage to the airplane. E:\FR\FM\21APP1.SGM 21APP1 Federal Register / Vol. 80, No. 76 / Tuesday, April 21, 2015 / Proposed Rules Related Service Information Under 1 CFR Part 51 We reviewed PW Alert Service Bulletin (ASB) No. PW4G–100–A73–44, dated October 10, 2014. This service information contains information regarding fuel nozzle manifold inspection and fuel nozzle-to-fuel supply manifold B-nut torque requirements. This service information is reasonably available because the interested parties have access to it through their normal course of business or see ADDRESSES for other ways to access this service information. FAA’s Determination We are proposing this NPRM 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 inspecting the fuel nozzle-to-fuel supply manifold interface for evidence of leaks and replacing hardware in cases where fuel leaks are identified. This NPRM also requires torqueing certain B-nuts to the specified requirement. Differences Between This Proposed AD and the Service Information PW ASB No. PW4G–100–A73–44 uses calendar dates for compliance time. This NPRM uses cycles. Using cycles from the effective date of the AD supports the intent of the ASB and ensures adequate compliance time after the effective date of the AD. tkelley on DSK3SPTVN1PROD with PROPOSALS Costs of Compliance We estimate that this proposed AD would affect about 72 engines installed on airplanes of U.S. registry. The average labor rate is $85 per hour. We estimate that parts replacement will cost about $1,356 per engine. Based on these figures, we estimate the cost of this proposed AD on U.S. operators to be $391,392. 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 VerDate Sep<11>2014 17:28 Apr 20, 2015 Jkt 235001 22141 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. (c) Applicability Regulatory Findings (d) Unsafe Condition 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. This AD was prompted by fuel nozzle-tofuel supply manifold interface fuel leaks. We are issuing this AD to prevent fuel leaks which could result in engine fire and damage to the airplane. 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 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): Pratt & Whitney: Docket No. FAA–2014– 1130; Directorate Identifier 2015–NE– 04–AD. (a) Comments Due Date We must receive comments by June 22, 2015. (b) Affected ADs None. Frm 00006 Fmt 4702 (e) Compliance Comply with this AD within the compliance times specified, unless already done. (1) Within 800 flight hours after the effective date of this AD, and within every 800 hours since last inspection thereafter, inspect all fuel nozzle-to-fuel supply manifold interfaces for evidence of fuel leaks, soot, and coke formation. Use the Accomplishment Instructions, Part A, of PW Alert Service Bulletin (ASB) No. PW4G–100– A73–44, dated October 10, 2014 to do the inspections. (2) Replace hardware that fails an inspection. Use the Accomplishment Instructions, Part A, of PW ASB No. PW4G– 100–A73–44, dated October 10, 2014 to do the replacement. (f) Mandatory Terminating Action (1) Inspect all fuel nozzle-to-fuel supply manifold interfaces for fuel leaks, soot, and coke formation, replace hardware that fails inspection, and re-torque all fuel nozzle-tofuel supply manifold B-nuts as follows: (i) For engines with fewer than 1,500 cycles on the effective date of this AD, before accumulating another 650 cycles, not to exceed 1,900 cycles. (ii) For engines with 1,500 cycles or more, but fewer than 2,500 cycles on the effective date of this AD, before accumulating another 400 cycles, not to exceed 2,700 cycles. (iii) For engines with 2,500 cycles or more on the effective date of this AD, before accumulating another 200 cycles. (2) Use the Accomplishment Instructions, Parts B through E, of PW ASB No. PW4G– 100–A73–44, dated October 10, 2014 to do the inspection, replacement, and retorqueing. (g) Definition [Amended] ■ PO 00000 This AD applies to all Pratt & Whitney (PW) PW4164–1D, PW4168–1D, PW4168A– 1D and PW4170 engines; and all PW4164, PW4168, and PW4168A turbofan engines that have incorporated either PW Service Bulletin (SB) No. PW4G–100–72–214, dated December 15, 2011 or PW SB No. PW4G– 100–72–219, Revision 1, dated October 5, 2011. Sfmt 4702 For the purpose of this AD ‘‘cycles’’ is defined as cycles since new or cycles since the incorporation of PW SB No. PW4G–100– 72–214, dated December 15, 2011 or SB No. PW4G–100–72–219, Revision 1, dated October 5, 2011. (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. E:\FR\FM\21APP1.SGM 21APP1 22142 Federal Register / Vol. 80, No. 76 / Tuesday, April 21, 2015 / Proposed Rules (i) Related Information (1) For more information about this AD, contact Katheryn Malatek, Aerospace Engineer, Engine Certification Office, FAA, Engine & Propeller Directorate, 12 New England Executive Park, Burlington, MA 01803; phone: 781–238–7747; fax: 781–238– 7199; email: katheryn.malatek@faa.gov. (2) PW ASB No. PW4G–100–A73–44, dated October 10, 2014, which is not incorporated by reference, can be obtained from Pratt & Whitney using the contact information in paragraph (j)(3) of this proposed rule. (3) For service information identified in this proposed rule, contact Pratt & Whitney, 400 Main St., East Hartford, CT 06108; phone: 860–565–8770; fax: 860–565–4503. (4) 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. 33 CFR Part 165 public meetings must be received by the Coast Guard on or before April 30, 2015. ADDRESSES: You may submit comments identified by docket number using any one of the following methods: (1) Federal eRulemaking Portal: http://www.regulations.gov. (2) Fax: 202–493–2251. (3) Mail or Delivery: Docket Management Facility (M–30), U.S. Department of Transportation, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590–0001. Deliveries accepted between 9 a.m. and 5 p.m., Monday through Friday, except federal holidays. The telephone number is 202– 366–9329. See the ‘‘Public Participation and Request for Comments’’ portion of the SUPPLEMENTARY INFORMATION section below for further instructions on submitting comments. To avoid duplication, please use only one of these three methods. FOR FURTHER INFORMATION CONTACT: If you have questions on this rule, call or email Chief Warrant Officer Christopher Ruleman, Sector Charleston Office of Waterways Management, Coast Guard; telephone (843)-740–3184, email Christopher.L.Ruleman@uscg.mil. If you have questions on viewing or submitting material to the docket, call Cheryl Collins, Program Manager, Docket Operations, telephone (202) 366–9826. SUPPLEMENTARY INFORMATION: [Docket Number USCG–2015–0181] Table of Acronyms RIN 1625–AA00 DHS Department of Homeland Security FR Federal Register NPRM Notice of proposed rulemaking Issued in Burlington, Massachusetts, on April 10, 2015. Ann C. Mollica, Acting Directorate Manager, Engine & Propeller Directorate, Aircraft Certification Service. [FR Doc. 2015–08995 Filed 4–20–15; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF HOMELAND SECURITY Coast Guard Safety Zone, Low Country Splash, Wando River, Cooper River, and Charleston Harbor, Charleston, SC Coast Guard, DHS. Notice of proposed rulemaking. AGENCY: ACTION: The Coast Guard proposes to establish temporary moving safety zone during the Low Country Splash, a swimming race occurring on the Wando River, the Cooper River, and Charleston Harbor, in Charleston, South Carolina. The Low Country Splash is scheduled on May 30, 2015, from 7:30 a.m. to 9:45 a.m. The temporary moving safety zone is necessary to protect swimmers, participant vessels, spectators, and the general public during the event. Persons and vessels would be prohibited from entering the safety zone unless authorized by the Captain of the Port Charleston or a designated representative. tkelley on DSK3SPTVN1PROD with PROPOSALS SUMMARY: Comments and related material must be received by the Coast Guard on or before May 6, 2015. Requests for DATES: VerDate Sep<11>2014 18:23 Apr 20, 2015 Jkt 235001 A. Public Participation and Request for Comments We encourage you to participate in this rulemaking by submitting comments and related materials. All comments received will be posted without change to http:// www.regulations.gov and will include any personal information you have provided. 1. Submitting Comments If you submit a comment, please include the docket number for this rulemaking, indicate the specific section of this document to which each comment applies, and provide a reason for each suggestion or recommendation. You may submit your comments and material online at http:// www.regulations.gov, or by fax, mail, or hand delivery, but please use only one of these means. If you submit a comment online, it will be considered received by the Coast Guard when you successfully transmit the comment. If PO 00000 Frm 00007 Fmt 4702 Sfmt 4702 you fax, hand deliver, or mail your comment, it will be considered as having been received by the Coast Guard when it is received at the Docket Management Facility. We recommend that you include your name and a mailing address, an email address, or a telephone number in the body of your document so that we can contact you if we have questions regarding your submission. To submit your comment online, go to http://www.regulations.gov, type the docket number USCG–2015–0181 in the ‘‘SEARCH’’ box and click ‘‘SEARCH.’’ Click on ‘‘Submit a Comment’’ on the line associated with this rulemaking. If you submit your comments by mail or hand delivery, submit them in an unbound format, no larger than 81⁄2 by 11 inches, suitable for copying and electronic filing. If you submit comments by mail and would like to know that they reached the Facility, please enclose a stamped, self-addressed postcard or envelope. We will consider all comments and material received during the comment period and may change the rule based on your comments. 2. Viewing Comments and Documents To view comments, as well as documents mentioned in this preamble as being available in the docket, go to http://www.regulations.gov, type the docket number USCG–2015–0181 in the ‘‘SEARCH’’ box and click ‘‘SEARCH.’’ Click on Open Docket Folder on the line associated with this rulemaking. You may also visit the Docket Management Facility in Room W12–140 on the ground floor of the Department of Transportation West Building, 1200 New Jersey Avenue SE., Washington, DC 20590, between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. 3. Privacy Act Anyone can search the electronic form of comments received into any of our dockets by the name of the individual submitting the comment (or signing the comment, if submitted on behalf of an association, business, labor union, etc.). You may review a Privacy Act notice regarding our public dockets in the January 17, 2008, issue of the Federal Register (73 FR 3316). 4. Public Meeting We do not now plan to hold a public meeting. But you may submit a request for one, using one of the methods specified under ADDRESSES. Please explain why you believe a public meeting would be beneficial. If we determine that one would aid this E:\FR\FM\21APP1.SGM 21APP1

Agencies

[Federal Register Volume 80, Number 76 (Tuesday, April 21, 2015)]
[Proposed Rules]
[Pages 22140-22142]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2015-08995]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2014-1130; Directorate Identifier 2015-NE-04-AD]
RIN 2120-AA64


Airworthiness Directives; Pratt & Whitney Turbofan Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for all 
Pratt & Whitney (PW) PW4164-1D, PW4168-1D, PW4168A-1D and PW4170 
engines, and certain PW4164, PW4168, and PW4168A turbofan engines. This 
proposed AD was prompted by fuel nozzle-to-fuel supply manifold 
interface fuel leaks. This proposed AD would require inspecting fuel 
nozzles for signs of leakage, replacing hardware as required, and 
torqueing to specified requirement. We are proposing this AD to prevent 
fuel leaks which could result in engine fire and damage to the 
airplane.

DATES: We must receive comments on this proposed AD by June 22, 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 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 proposed AD, contact 
Pratt & Whitney, 400 Main St., East Hartford, CT 06108; phone: 860-565-
8770; fax: 860-565-4503. You may view this service information at the 
FAA, Engine & Propeller Directorate, 12 New England Executive Park, 
Burlington, MA. For information on the availability of this material at 
the FAA, call 781-238-7125.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2014-
1130; 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: Katheryn Malatek, Aerospace Engineer, 
Engine Certification Office, FAA, Engine & Propeller Directorate, 12 
New England Executive Park, Burlington, MA 01803; phone: 781-238-7747; 
fax: 781-238-7199; email: katheryn.malatek@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-2014-1130; 
Directorate Identifier 2015-NE-04-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

    We received reports of four fuel nozzle leaks in service and an 
additional six fuel nozzle leaks found during shop visits. The root 
cause is inadequate torque of the fuel nozzle-to-fuel supply manifold 
B-nuts for the temperatures that the fuel nozzles experience. This 
condition, if not corrected, could result in engine fire and damage to 
the airplane.

[[Page 22141]]

Related Service Information Under 1 CFR Part 51

    We reviewed PW Alert Service Bulletin (ASB) No. PW4G-100-A73-44, 
dated October 10, 2014. This service information contains information 
regarding fuel nozzle manifold inspection and fuel nozzle-to-fuel 
supply manifold B-nut torque requirements. This service information is 
reasonably available because the interested parties have access to it 
through their normal course of business or see ADDRESSES for other ways 
to access this service information.

FAA's Determination

    We are proposing this NPRM 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 inspecting the fuel nozzle-to-fuel supply 
manifold interface for evidence of leaks and replacing hardware in 
cases where fuel leaks are identified. This NPRM also requires 
torqueing certain B-nuts to the specified requirement.

Differences Between This Proposed AD and the Service Information

    PW ASB No. PW4G-100-A73-44 uses calendar dates for compliance time. 
This NPRM uses cycles. Using cycles from the effective date of the AD 
supports the intent of the ASB and ensures adequate compliance time 
after the effective date of the AD.

Costs of Compliance

    We estimate that this proposed AD would affect about 72 engines 
installed on airplanes of U.S. registry. The average labor rate is $85 
per hour. We estimate that parts replacement will cost about $1,356 per 
engine. Based on these figures, we estimate the cost of this proposed 
AD on U.S. operators to be $391,392.

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 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.

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 adding the following new airworthiness 
directive (AD):

Pratt & Whitney: Docket No. FAA-2014-1130; Directorate Identifier 
2015-NE-04-AD.

(a) Comments Due Date

    We must receive comments by June 22, 2015.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Pratt & Whitney (PW) PW4164-1D, PW4168-
1D, PW4168A-1D and PW4170 engines; and all PW4164, PW4168, and 
PW4168A turbofan engines that have incorporated either PW Service 
Bulletin (SB) No. PW4G-100-72-214, dated December 15, 2011 or PW SB 
No. PW4G-100-72-219, Revision 1, dated October 5, 2011.

(d) Unsafe Condition

    This AD was prompted by fuel nozzle-to-fuel supply manifold 
interface fuel leaks. We are issuing this AD to prevent fuel leaks 
which could result in engine fire and damage to the airplane.

(e) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.
    (1) Within 800 flight hours after the effective date of this AD, 
and within every 800 hours since last inspection thereafter, inspect 
all fuel nozzle-to-fuel supply manifold interfaces for evidence of 
fuel leaks, soot, and coke formation. Use the Accomplishment 
Instructions, Part A, of PW Alert Service Bulletin (ASB) No. PW4G-
100-A73-44, dated October 10, 2014 to do the inspections.
    (2) Replace hardware that fails an inspection. Use the 
Accomplishment Instructions, Part A, of PW ASB No. PW4G-100-A73-44, 
dated October 10, 2014 to do the replacement.

(f) Mandatory Terminating Action

    (1) Inspect all fuel nozzle-to-fuel supply manifold interfaces 
for fuel leaks, soot, and coke formation, replace hardware that 
fails inspection, and re-torque all fuel nozzle-to-fuel supply 
manifold B-nuts as follows:
    (i) For engines with fewer than 1,500 cycles on the effective 
date of this AD, before accumulating another 650 cycles, not to 
exceed 1,900 cycles.
    (ii) For engines with 1,500 cycles or more, but fewer than 2,500 
cycles on the effective date of this AD, before accumulating another 
400 cycles, not to exceed 2,700 cycles.
    (iii) For engines with 2,500 cycles or more on the effective 
date of this AD, before accumulating another 200 cycles.
    (2) Use the Accomplishment Instructions, Parts B through E, of 
PW ASB No. PW4G-100-A73-44, dated October 10, 2014 to do the 
inspection, replacement, and retorqueing.

(g) Definition

    For the purpose of this AD ``cycles'' is defined as cycles since 
new or cycles since the incorporation of PW SB No. PW4G-100-72-214, 
dated December 15, 2011 or SB No. PW4G-100-72-219, Revision 1, dated 
October 5, 2011.

(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.

[[Page 22142]]

(i) Related Information

    (1) For more information about this AD, contact Katheryn 
Malatek, Aerospace Engineer, Engine Certification Office, FAA, 
Engine & Propeller Directorate, 12 New England Executive Park, 
Burlington, MA 01803; phone: 781-238-7747; fax: 781-238-7199; email: 
katheryn.malatek@faa.gov.
    (2) PW ASB No. PW4G-100-A73-44, dated October 10, 2014, which is 
not incorporated by reference, can be obtained from Pratt & Whitney 
using the contact information in paragraph (j)(3) of this proposed 
rule.
    (3) For service information identified in this proposed rule, 
contact Pratt & Whitney, 400 Main St., East Hartford, CT 06108; 
phone: 860-565-8770; fax: 860-565-4503.
    (4) 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 April 10, 2015.
Ann C. Mollica,
Acting Directorate Manager, Engine & Propeller Directorate, Aircraft 
Certification Service.
[FR Doc. 2015-08995 Filed 4-20-15; 8:45 am]
 BILLING CODE 4910-13-P