Airworthiness Directives; International Aero Engines Turbofan Engines, 45359-45362 [2018-19174]

Download as PDF 45359 Proposed Rules Federal Register Vol. 83, No. 174 Friday, September 7, 2018 This section of the FEDERAL REGISTER contains notices to the public of the proposed issuance of rules and regulations. The purpose of these notices is to give interested persons an opportunity to participate in the rule making prior to the adoption of the final rules. NUCLEAR REGULATORY COMMISSION 10 CFR Chapter I [NRC–2017–0181] Identifying and Reporting Human Performance Incidents Nuclear Regulatory Commission. ACTION: Draft regulatory issue summary; withdrawal. AGENCY: The U.S. Nuclear Regulatory Commission (NRC) is withdrawing the draft regulatory issue summary (RIS), RIS 2017–XX, ‘‘Identifying and Reporting Human Factor Incidents.’’ This document is being withdrawn because after further consideration, the NRC determined that the RIS did not provide the clarification intended regarding licensees’ required reporting of human performance incidents. DATES: The withdrawal of draft RIS 2017–XX, ‘‘Identifying and Reporting Human Factor Incidents’’ is effective as of September 7, 2018. ADDRESSES: Please refer to Docket ID NRC–2017–0181 when contacting the NRC about the availability of information regarding this document. You may obtain publicly-available information related to this document using any of the following methods: • Federal Rulemaking website: Go to https://www.regulations.gov and search for Docket ID NRC–2017–0181. Address questions about NRC dockets to Jennifer Borges; telephone: 301–287–9127; email: Jennifer.Borges@nrc.gov. For technical questions, contact the individual(s) listed in the FOR FURTHER INFORMATION CONTACT section of this document. • NRC’s Agencywide Documents Access and Management System (ADAMS): You may obtain publiclyavailable documents online in the ADAMS Public Documents collection at https://www.nrc.gov/reading-rm/ adams.html. To begin the search, select ‘‘Begin Web-based ADAMS Search.’’ For daltland on DSKBBV9HB2PROD with PROPOSALS SUMMARY: VerDate Sep<11>2014 19:16 Sep 06, 2018 Jkt 244001 problems with ADAMS, please contact the NRC’s Public Document Room (PDR) reference staff at 1–800–397–4209, 301– 415–4737, or by email to pdr.resource@ nrc.gov. The draft RIS, ‘‘Identifying and Reporting Human Factor Incidents’’ is available in ADAMS under Accession No. ML16029A010. • NRC’s PDR: You may examine and purchase copies of public documents at the NRC’s PDR, Room O1–F21, One White Flint North, 11555 Rockville Pike, Rockville, Maryland 20852. FOR FURTHER INFORMATION CONTACT: Carmen Franklin, Office of Nuclear Regulatory Research, telephone: 301– 415–2386, email: Carmen.Franklin@ nrc.gov and Alexander Schwab, Office of Nuclear Reactor Regulation, telephone: 301–415–8539, email: Alexander.Schwab@nrc.gov. Both are staff of the U.S. Nuclear Regulatory Commission, Washington, DC 20555– 0001. The NRC is withdrawing draft RIS 2017–XX, ‘‘Identifying and Reporting Human Factor Incidents’’ because after further consideration, the NRC determined that the RIS did not provide the clarification intended regarding licensees’ required reporting of human performance incidents ‘‘Licensee event report system’’ under § 50.73 of title 10 of the Code of Federal Regulations (CFR). SUPPLEMENTARY INFORMATION: Dated at Rockville, Maryland, this 31st day of August 2018. For the Nuclear Regulatory Commission. Bo Pham, Branch Chief, ROP Support and Generic Communications Branch, Division of Inspection and Regional Support, Office of Nuclear Reactor Regulation. [FR Doc. 2018–19369 Filed 9–6–18; 8:45 am] BILLING CODE 7590–01–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0735; Product Identifier 2018–NE–26–AD] RIN 2120–AA64 Airworthiness Directives; International Aero Engines Turbofan Engines Federal Aviation Administration (FAA), DOT. AGENCY: PO 00000 Frm 00001 Fmt 4702 Sfmt 4702 Notice of proposed rulemaking (NPRM). ACTION: We propose to adopt a new airworthiness directive (AD) for all International Aero Engines (IAE) PW1133G–JM, PW1133GA–JM, PW1130G–JM, PW1127G–JM, PW1127GA–JM, PW1127G1–JM, PW1124G–JM, PW1124G1–JM, and PW1122G–JM turbofan engines with certain low-pressure turbine (LPT) 1stand 3rd-stage disks installed. This proposed AD was prompted by a report of manufacturing defects found on delivered LPT 1st- and 3rd-stage disks. This proposed AD would require removing the LPT 1st- or 3rd-stage disk from service and replacing with a part eligible for installation. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by October 22, 2018. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC, 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. SUMMARY: Examining the AD Docket You may examine the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0735; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800–647–5527) is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington MA, 01803; phone: 781–238–7088; fax: 781–238–7199; email: kevin.m.clark@faa.gov. E:\FR\FM\07SEP1.SGM 07SEP1 45360 Federal Register / Vol. 83, No. 174 / Friday, September 7, 2018 / Proposed Rules SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2018–0735; Product Identifier 2018– NE–26–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 https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this NPRM. Discussion We received a report that multiple LPT 1st- and 3rd-stage disks were delivered before the ingot lot was rejected due to material inclusion. The suspect LPT 1st- and 3rd-stage disks may include defects that may have not been discovered during inspections. This condition, if not addressed, could result in uncontained LPT 1st- or 3rdstage disk release, damage to the engine, and damage to the airplane. 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 removing from service and replacing the LPT 1st- or 3rd-stage disk with a part eligible for installation. Costs of Compliance We estimate that this proposed AD affects 0 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: daltland on DSKBBV9HB2PROD with PROPOSALS ESTIMATED COSTS Action Labor cost Parts cost Remove and replace LPT 1st- or 3rd-stage disk. 0 work-hours × $85 per hour = $0 ................. Authority for This Rulemaking Regulatory Findings 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. This AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. 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, 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. VerDate Sep<11>2014 19:16 Sep 06, 2018 Jkt 244001 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: PO 00000 Frm 00002 Fmt 4702 Sfmt 4702 $210,000 Cost per product Cost on U.S. operators $210,000 $0 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): ■ International Aero Engines: Docket No. FAA–2018–0735; Product Identifier 2018–NE–26–AD. (a) Comments Due Date We must receive comments by October 22, 2018. (b) Affected ADs None. (c) Applicability This AD applies to International Aero Engines (IAE) PW1133G–JM, PW1133GA–JM, PW1130G–JM, PW1127G–JM, PW1127GA– JM, PW1127G1–JM, PW1124G–JM, PW1124G1–JM, and PW1122G–JM turbofan engines with a low-pressure turbine (LPT) 3rd-stage disk with a serial number (S/N) listed in Figure 1 to paragraph (g) of this AD or an LPT 1st-stage disk with an S/N listed in Figure 2 to paragraph (g) of this AD, installed. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (e) Unsafe Condition This AD was prompted by a report of manufacturing defects found on delivered E:\FR\FM\07SEP1.SGM 07SEP1 (f) Compliance Comply with this AD within the compliance times specified, unless already done. (2) Remove the LPT 1st-stage disk with an S/N listed in Figure 2 to paragraph (g) of this AD at next shop visit, not to exceed 2,240 cycles since new. (h) Definitions flanges solely for the purposes of transportation of the engine without subsequent engine maintenance does not constitute an engine shop visit. For the purpose of this AD, 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 VerDate Sep<11>2014 19:16 Sep 06, 2018 Jkt 244001 (g) Required Actions Remove from service the LPT 1st- or 3rdstage disk within 30 days after the effective PO 00000 Frm 00003 Fmt 4702 Sfmt 4702 date of this AD, or as identified in paragraphs (g)(1) or (2) of this AD, whichever occurs later, and replace with a part eligible for installation: (1) Remove the LPT 3rd-stage disk with an S/N listed in Figure 1 to paragraph (g) of this AD at the next shop visit, not to exceed 4,800 cycles since new. (i) Alternative Methods of Compliance (AMOCs) (1) The Manager, ECO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, E:\FR\FM\07SEP1.SGM 07SEP1 EP07SE18.003</GPH> LPT 1st- and 3rd-stage disks. We are issuing this AD to prevent failure of the LPT 1st- or 3rd-stage disk. The unsafe condition, if not addressed, could result in uncontained LPT 1st- or 3rd-stage disk release, damage to the engine, and damage to the airplane. 45361 EP07SE18.002</GPH> daltland on DSKBBV9HB2PROD with PROPOSALS Federal Register / Vol. 83, No. 174 / Friday, September 7, 2018 / Proposed Rules 45362 Federal Register / Vol. 83, No. 174 / Friday, September 7, 2018 / Proposed Rules send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (j) of this AD. You may email your request to: ANE-AD-AMOC@ faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. (j) Related Information For more information about this AD, contact Kevin M. Clark, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7088; fax: 781–238–7199; email: kevin.m.clark@faa.gov. Issued in Burlington, Massachusetts, on August 29, 2018. Karen M. Grant, Acting Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2018–19174 Filed 9–6–18; 8:45 am] Examining the AD Docket BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0767; Product Identifier 2018–NM–068–AD] RIN 2120–AA64 Airworthiness Directives; Fokker Services B.V. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by reports that debris from the parking brake shut off valve (PBSOV) could create a partial blockage of the restrictor check valve in the hydraulic return line of the PBSOV. This proposed AD would require replacing the restrictor check valve with an improved valve that has a filter screen. We are proposing this AD to address the unsafe condition on these products. daltland on DSKBBV9HB2PROD with PROPOSALS SUMMARY: We must receive comments on this proposed AD by October 22, 2018. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: DATES: VerDate Sep<11>2014 19:16 Sep 06, 2018 • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Fokker Services B.V., Technical Services Dept., P.O. Box 1357, 2130 EL Hoofddorp, the Netherlands; telephone +31 (0)88–6280– 350; fax +31 (0)88–6280–111; email technicalservices@fokker.com; internet https://www.myfokkerfleet.com. You may view this service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. Jkt 244001 You may examine the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0767; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800–647–5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer, International Section, Transport Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 206–231–3226. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA– 2018–0767; Product Identifier 2018– NM–068–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 https:// PO 00000 Frm 00004 Fmt 4702 Sfmt 4702 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 The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union, has issued EASA Airworthiness Directive 2018–0077 dated April 6, 2018 (referred to after this as the Mandatory Continuing Airworthiness Information, or ‘‘the MCAI’’), to correct an unsafe condition for Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. The MCAI states: Service experience with Fokker 70 and Fokker 100 aeroplanes has shown that debris from the parking brake shut-off valve (PBSOV) can eventually block the restrictor check valve in the hydraulic return line of the PBSOV. Prompted by these findings, Fokker Services issued [Service Bulletin F100/70] SBF100–32–159 to introduce a new PBSOV and a one-time inspection for debris in the affected part of the hydraulic return system. EASA issued AD 2009–0220 [which corresponds to AD 2010–22–05 (75 FR 66649, October 29, 2010) (‘‘AD 2010–22–05’’)] to require those actions. In addition, Fokker Services issued SBF100–32–163 to introduce the option to install a restrictor check valve with a filter screen in the return line of the PBSOV. A recent review of in-service experience and the SBF100–32–159 inspection results revealed new occurrences of debris that obstructed (but did not completely block) the restrictor check valve. This condition, if not corrected, might prevent complete main landing gear extension, possibly resulting in damage to the aeroplane during landing, and consequent injury to occupants. To address this potential unsafe condition, Fokker Services issued Revision 1 of SBF100–32–163, providing instructions to replace the restrictor check valve with the improved valve incorporating a filter screen. For the reason described above, this [EASA] AD requires the replacement of the restrictor check valve in the return line of the PBSOV with the improved valve. You may examine the MCAI in the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2018– 0767. Relationship Between Proposed AD and AD 2010–22–05 This NPRM does not propose to supersede AD 2010–22–05. Rather, we have determined that a stand-alone AD would be more appropriate to address the changes in the MCAI. This proposed AD would require replacing the restrictor check valve with an improved valve that has a filter screen. Accomplishment of the proposed E:\FR\FM\07SEP1.SGM 07SEP1

Agencies

[Federal Register Volume 83, Number 174 (Friday, September 7, 2018)]
[Proposed Rules]
[Pages 45359-45362]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-19174]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0735; Product Identifier 2018-NE-26-AD]
RIN 2120-AA64


Airworthiness Directives; International Aero Engines 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 
International Aero Engines (IAE) PW1133G-JM, PW1133GA-JM, PW1130G-JM, 
PW1127G-JM, PW1127GA-JM, PW1127G1-JM, PW1124G-JM, PW1124G1-JM, and 
PW1122G-JM turbofan engines with certain low-pressure turbine (LPT) 
1st- and 3rd-stage disks installed. This proposed AD was prompted by a 
report of manufacturing defects found on delivered LPT 1st- and 3rd-
stage disks. This proposed AD would require removing the LPT 1st- or 
3rd-stage disk from service and replacing with a part eligible for 
installation. We are proposing this AD to address the unsafe condition 
on these products.

DATES: We must receive comments on this proposed AD by October 22, 
2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC, 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2018-
0735; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations (phone: 800-647-
5527) is listed above. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Kevin M. Clark, Aerospace Engineer, 
ECO Branch, FAA, 1200 District Avenue, Burlington MA, 01803; phone: 
781-238-7088; fax: 781-238-7199; email: [email protected].

[[Page 45360]]


SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2018-0735; 
Product Identifier 2018-NE-26-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 https://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this NPRM.

Discussion

    We received a report that multiple LPT 1st- and 3rd-stage disks 
were delivered before the ingot lot was rejected due to material 
inclusion. The suspect LPT 1st- and 3rd-stage disks may include defects 
that may have not been discovered during inspections. This condition, 
if not addressed, could result in uncontained LPT 1st- or 3rd-stage 
disk release, damage to the engine, and damage to the airplane.

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 removing from service and replacing 
the LPT 1st- or 3rd-stage disk with a part eligible for installation.

Costs of Compliance

    We estimate that this proposed AD affects 0 engines installed on 
airplanes of U.S. registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Remove and replace LPT 1st- or 3rd-     0 work-hours x $85 per          $210,000        $210,000              $0
 stage disk.                             hour = $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.
    This AD is issued in accordance with authority delegated by the 
Executive Director, Aircraft Certification Service, as authorized by 
FAA Order 8000.51C. In accordance with that order, issuance of ADs is 
normally a function of the Compliance and Airworthiness Division, but 
during this transition period, the Executive Director has delegated the 
authority to issue ADs applicable to engines, propellers, and 
associated appliances to the Manager, Engine and Propeller Standards 
Branch, Policy and Innovation Division.

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, 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):

International Aero Engines: Docket No. FAA-2018-0735; Product 
Identifier 2018-NE-26-AD.

(a) Comments Due Date

    We must receive comments by October 22, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to International Aero Engines (IAE) PW1133G-JM, 
PW1133GA-JM, PW1130G-JM, PW1127G-JM, PW1127GA-JM, PW1127G1-JM, 
PW1124G-JM, PW1124G1-JM, and PW1122G-JM turbofan engines with a low-
pressure turbine (LPT) 3rd-stage disk with a serial number (S/N) 
listed in Figure 1 to paragraph (g) of this AD or an LPT 1st-stage 
disk with an S/N listed in Figure 2 to paragraph (g) of this AD, 
installed.

(d) Subject

    Joint Aircraft System Component (JASC) Code 7250, Turbine 
Section.

(e) Unsafe Condition

    This AD was prompted by a report of manufacturing defects found 
on delivered

[[Page 45361]]

LPT 1st- and 3rd-stage disks. We are issuing this AD to prevent 
failure of the LPT 1st- or 3rd-stage disk. The unsafe condition, if 
not addressed, could result in uncontained LPT 1st- or 3rd-stage 
disk release, damage to the engine, and damage to the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Required Actions

    Remove from service the LPT 1st- or 3rd-stage disk within 30 
days after the effective date of this AD, or as identified in 
paragraphs (g)(1) or (2) of this AD, whichever occurs later, and 
replace with a part eligible for installation:
    (1) Remove the LPT 3rd-stage disk with an S/N listed in Figure 1 
to paragraph (g) of this AD at the next shop visit, not to exceed 
4,800 cycles since new.
[GRAPHIC] [TIFF OMITTED] TP07SE18.002

    (2) Remove the LPT 1st-stage disk with an S/N listed in Figure 2 
to paragraph (g) of this AD at next shop visit, not to exceed 2,240 
cycles since new.
[GRAPHIC] [TIFF OMITTED] TP07SE18.003

(h) Definitions

    For the purpose of this AD, 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 of the engine without subsequent engine maintenance 
does not constitute an engine shop visit.

(i) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, ECO Branch, FAA, has the authority to approve 
AMOCs for this AD, if requested using the procedures found in 14 CFR 
39.19. In accordance with 14 CFR 39.19,

[[Page 45362]]

send your request to your principal inspector or local Flight 
Standards District Office, as appropriate. If sending information 
directly to the manager of the certification office, send it to the 
attention of the person identified in paragraph (j) of this AD. You 
may email your request to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(j) Related Information

    For more information about this AD, contact Kevin M. Clark, 
Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: 781-238-7088; fax: 781-238-7199; email: 
[email protected].


    Issued in Burlington, Massachusetts, on August 29, 2018.
Karen M. Grant,
Acting Manager, Engine and Propeller Standards Branch, Aircraft 
Certification Service.
[FR Doc. 2018-19174 Filed 9-6-18; 8:45 am]
 BILLING CODE 4910-13-P

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