Airworthiness Directives; International Aero Engines Turbofan Engines, 2715-2718 [2019-01127]

Download as PDF Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Rules and Regulations Revision No. 1, dated December 13, 2018, remove the affected HPT case from service within the cycles identified in Table 1 of Engine Alliance Alert Service Bulletin EAGP7–A72–401, Revision No. 1, dated December 13, 2018, after the effective date of this AD. (2) For HPT cases listed in Planning Information, Table 1, of Engine Alliance Service Bulletin EAGP7–72–399, dated June 4, 2018, remove the affected HPT cases from service, using the number of part cycles since new (PCSN) or part cycles since overhaul (PCSO), whichever is less, as specified in Table 1 to paragraph (g)(2) of this AD. (3) Replace the removed HPT case with a part eligible for installation before further flight. (2) You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise. (3) The following service information was approved for IBR on February 25, 2019. (i) Engine Alliance Alert Service Bulletin EAGP7–A72–401, Revision No. 1, dated December 13, 2018. (ii) [Reserved] (4) The following service information was approved for IBR on November 23, 2018 (83 FR 55816, November 8, 2018). (i) Engine Alliance Service Bulletin EAGP7–72–399, dated June 4, 2018. (ii) [Reserved] (5) For service information identified in this AD, contact Engine Alliance, 411 Silver Lane, East Hartford, CT 06118; phone: 800– 565–0140; email: help24@pw.utc.com; website: www.engineallianceportal.com. (6) You may view this service information at FAA, Engine and Propeller Standards Branch, 1200 District Avenue, Burlington, MA 01803. For information on the availability of this material at the FAA, call 781–238–7759. (7) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call 202–741–6030, or go to: https:// www.archives.gov/federal-register/cfr/ibrlocations.html. DEPARTMENT OF TRANSPORTATION For the purpose of this AD, a ‘‘part eligible for installation’’ is any HPT case not identified in paragraph (c) of this AD or an HPT case listed in this AD that has been inspected and repaired by a method approved by the Manager, ECO Branch, FAA. (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, 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 Matthew Smith, Aerospace Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781–238– 7735; fax: 781–238–7199; email: Matthew.C.Smith@faa.gov. (k) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference (IBR) of the service information listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51. VerDate Sep<11>2014 15:11 Feb 07, 2019 Jkt 247001 Issued in Burlington, Massachusetts, on February 5, 2019. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2019–01614 Filed 2–7–19; 8:45 am] BILLING CODE 4910–13–P PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–0735; Product Identifier 2018–NE–26–AD; Amendment 39– 19505; AD 2018–24–01] RIN 2120–AA64 Airworthiness Directives; International Aero Engines Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: We are adopting a new airworthiness directive (AD) for certain International Aero Engines (IAE) PW1100G–JM turbofan engine models with certain low-pressure turbine (LPT) 1st- and 3rd-stage disks installed. This AD was prompted by a report of manufacturing defects found on delivered LPT 1st- and 3rd-stage disks. This AD requires removing the LPT 1stor 3rd-stage disk from service and replacing with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products. DATES: This AD is effective March 15, 2019. 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 E:\FR\FM\08FER1.SGM 08FER1 ER08FE19.000</GPH> (h) Definition Pmangrum on DSK3GMQ082PROD with RULES 2715 2716 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Rules and Regulations through Friday, except Federal holidays. The AD docket contains this final rule, the regulatory evaluation, any comments received, and other information. The address for Docket Operations (phone: 800–647–5527) is U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. 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. SUPPLEMENTARY INFORMATION: Discussion We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to 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 LPT 1st- and 3rd-stage disks installed. The NPRM published in the Federal Register on September 7, 2018 (83 FR 45359). The NPRM was prompted by 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 1stand 3rd-stage disks may include defects that may not have been discovered during inspections. The NPRM proposed to require removing the LPT 1st- or 3rd-stage disk from service and replacing with a part eligible for installation. We are issuing this AD to address the unsafe condition on these products. safety objectives of this AD. We also removed the Definitions paragraph from this AD since it is no longer necessary. Comments An individual commenter requested that we define the costs associated with the removal of the LPT 1st- or 3rd grade disks from each unit. We disagree. We did not define a removal cost estimate because removal of the LPT 1st- or 3rd grade disks occurs when the unit is ‘‘at the next piece-part exposure’’ level. Therefore, no additional cost is incurred by removal of the LPT disks. We gave the public the opportunity to participate in developing this final rule. The following presents the comments received on the NPRM and the FAA’s response to each comment. Request To Change Compliance Time IAE requested that we change the compliance time for removing from service the LPT 1st- and 3rd-stage disks from ‘‘at the next shop visit’’ to ‘‘within a service period.’’ IAE states its safety risk analysis shows that the prescribed corrective action exceeds all required safety risk criteria. Therefore, requiring removal and replacement of the LPT 1stand 3rd-stage disks with serial numbers (S/Ns) listed in Figure 1 to paragraph (g) of this AD ‘‘at the next shop visit’’ is overly restrictive. We partially agree. We agree that requiring removal and replacement of the LPT 1st- and 3rd-stage disks with S/ Ns listed in Figure 1 to paragraph (g) of this AD ‘‘at the next shop visit’’ may be overly restrictive based on the risk presented in the safety risk assessment. We disagree with using the words ‘‘within a service period’’ because this might allow reinstallation of parts that do not conform to the approved type design. Therefore, we changed the references in paragraphs (g)(1) and (2) of this AD from ‘‘at the next shop visit’’ to ‘‘at the next piece-part exposure.’’ We find that this change still meets the Request To Revise Cost of Compliance Conclusion We reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule with the change described previously. We have determined that these minor changes: • Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. We also determined that these changes will not increase the economic burden on any operator or increase the scope of this final rule. Costs of Compliance We estimate that this AD affects 0 engines installed on airplanes of U.S. registry. We estimate the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Parts cost Cost per product Cost on U.S. operators Remove and replace LPT 1st- or 3rd-stage disk .......... 0 work-hours × $85 per hour = $0 .. $210,000 $210,000 $0 Pmangrum on DSK3GMQ082PROD with RULES 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 VerDate Sep<11>2014 15:11 Feb 07, 2019 Jkt 247001 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 PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 applicable to engines, propellers, and associated appliances to the Manager, Engine and Propeller Standards Branch, Policy and Innovation Division. Regulatory Findings 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, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: E:\FR\FM\08FER1.SGM 08FER1 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Rules and Regulations 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: § 39.13 2. The FAA amends § 39.13 by adding the following new airworthiness directive (AD): ■ 2018–24–01 International Aero Engines: Amendment 39–19505; Docket No. FAA–2018–0735; Product Identifier 2018–NE–26–AD. (a) Effective Date This AD is effective March 15, 2019. (b) Affected ADs None. (c) Applicability 1. The authority citation for part 39 continues to read as follows: (2) Remove the LPT 1st-stage disk with an S/N listed in Figure 2 to paragraph (g) of this AD at the next piece-part exposure, not to exceed 2,240 CSN. ■ VerDate Sep<11>2014 15:11 Feb 07, 2019 Jkt 247001 PO 00000 Frm 00013 Fmt 4700 (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. [Amended] 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. PART 39—AIRWORTHINESS DIRECTIVES Pmangrum on DSK3GMQ082PROD with RULES Authority: 49 U.S.C. 106(g), 40113, 44701. Sfmt 4700 (e) Unsafe Condition This AD was prompted by a report of manufacturing defects found on delivered 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- and 3rdstage 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 a serial number (S/N) listed in Figure 1 to paragraph (g) of this AD at the next piece-part exposure, not to exceed 4,800 cycles since new (CSN). E:\FR\FM\08FER1.SGM 08FER1 ER08FE19.004</GPH> (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under 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. 2717 2718 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Rules and Regulations AGENCY: Jackman, ME, to accommodate new area navigation (RNAV) global positioning system (GPS) standard instrument approach procedures serving the airport. Also, this action removes duplicative Class E airspace for Newton Field, ME. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations at this airport. This action also updates the geographic coordinates of this airport to be in concert with the FAA’s aeronautical database. DATES: Effective 0901 UTC, April 25, 2019. The Director of the Federal Register approves this incorporation by reference action under Title 1 Code of Federal Regulations part 51, subject to the annual revision of FAA Order 7400.11 and publication of conforming amendments. ADDRESSES: FAA Order 7400.11C, Airspace Designations and Reporting Points, and subsequent amendments can be viewed online at https://www.faa.gov/ air_traffic/publications/. For further information, you can contact the Airspace Policy Group, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone: (202) 267–8783. The Order is also available for inspection at the National Archives and Records Administration (NARA). For information on the availability of FAA Order 7400.11C at NARA, call (202) 741–6030, or go to https:// www.archives.gov/federal-register/cfr/ ibr-locations.html. FAA Order 7400.11, Airspace Designations and Reporting Points, is published yearly and effective on September 15. FOR FURTHER INFORMATION CONTACT: John Fornito, Operations Support Group, Eastern Service Center, Federal Aviation Administration, 1701 Columbia Avenue, College Park, GA 30337; telephone (404) 305–6364. SUPPLEMENTARY INFORMATION: This action amends Class E airspace extending upward from 700 feet above the surface at Newton Field, Authority for This Rulemaking The FAA’s authority to issue rules regarding aviation safety is found in Title 49 of the United States Code. Subtitle I, Section 106 describes the (i) 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. (j) Material Incorporated by Reference None. Issued in Burlington, Massachusetts on January 31, 2019. Robert J. Ganley, Manager, Engine and Propeller Standards Branch, Aircraft Certification Service. [FR Doc. 2019–01127 Filed 2–7–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2015–2892; Airspace Docket No. 15–ANE–2] Pmangrum on DSK3GMQ082PROD with RULES RIN 2120–AA66 Amendment of Class E Airspace; Jackman, ME, and Revocation of Class E Airspace; Newton Field, ME Federal Aviation Administration (FAA), DOT. ACTION: Final rule. SUMMARY: VerDate Sep<11>2014 15:11 Feb 07, 2019 Jkt 247001 PO 00000 Frm 00014 Fmt 4700 Sfmt 4700 authority of the FAA Administrator. Subtitle VII, Aviation Programs, describes in more detail the scope of the agency’s authority. This rulemaking is promulgated under the authority described in Subtitle VII, Part A, Subpart I, Section 40103. Under that section, the FAA is charged with prescribing regulations to assign the use of airspace necessary to ensure the safety of aircraft and the efficient use of airspace. This regulation is within the scope of that authority as it amends Class E airspace at Newton Field, Jackman, ME, to support IFR operations at this airport. History The FAA published a notice of proposed rulemaking in the Federal Register (83 FR 51897, October 15, 2018) for Docket No. FAA–2015–2892 to amend Class E airspace at Newton Field, Jackman, ME to support IFR operations at this airport. Interested parties were invited to participate in this rulemaking effort by submitting written comments on the proposal to the FAA. No comments were received. Class E airspace designations are published in paragraph 6005, of FAA Order 7400.11C dated August 13, 2018, and effective September 15, 2018, which is incorporated by reference in 14 CFR part 71.1. The Class E airspace designation listed in this document will be published subsequently in the Order. Availability and Summary of Documents for Incorporation by Reference This document amends FAA Order 7400.11C, Airspace Designations and Reporting Points, dated August 13, 2018, and effective September 15, 2018. FAA Order 7400.11C is publicly available as listed in the ADDRESSES section of this document. FAA Order 7400.11C lists Class A, B, C, D, and E airspace areas, air traffic service routes, and reporting points. The Rule This amendment to Title 14 Code of Federal Regulations (14 CFR) part 71 amends Class E airspace extending E:\FR\FM\08FER1.SGM 08FER1 ER08FE19.005</GPH> (h) 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, 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 (i) 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.

Agencies

[Federal Register Volume 84, Number 27 (Friday, February 8, 2019)]
[Rules and Regulations]
[Pages 2715-2718]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-01127]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0735; Product Identifier 2018-NE-26-AD; Amendment 
39-19505; AD 2018-24-01]
RIN 2120-AA64


Airworthiness Directives; International Aero Engines Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
International Aero Engines (IAE) PW1100G-JM turbofan engine models with 
certain low-pressure turbine (LPT) 1st- and 3rd-stage disks installed. 
This AD was prompted by a report of manufacturing defects found on 
delivered LPT 1st- and 3rd-stage disks. This AD requires removing the 
LPT 1st- or 3rd-stage disk from service and replacing with a part 
eligible for installation. We are issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective March 15, 2019.

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

[[Page 2716]]

through Friday, except Federal holidays. The AD docket contains this 
final rule, the regulatory evaluation, any comments received, and other 
information. The address for Docket Operations (phone: 800-647-5527) is 
U.S. Department of Transportation, Docket Operations, M-30, West 
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, 
Washington, DC 20590.

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.

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to 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 LPT 1st- and 3rd-stage disks installed. 
The NPRM published in the Federal Register on September 7, 2018 (83 FR 
45359). The NPRM was prompted by 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 not have been discovered during inspections. 
The NPRM proposed to require removing the LPT 1st- or 3rd-stage disk 
from service and replacing with a part eligible for installation. We 
are issuing this AD to address the unsafe condition on these products.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. The following presents the comments received on the 
NPRM and the FAA's response to each comment.

Request To Change Compliance Time

    IAE requested that we change the compliance time for removing from 
service the LPT 1st- and 3rd-stage disks from ``at the next shop 
visit'' to ``within a service period.'' IAE states its safety risk 
analysis shows that the prescribed corrective action exceeds all 
required safety risk criteria. Therefore, requiring removal and 
replacement of the LPT 1st- and 3rd-stage disks with serial numbers (S/
Ns) listed in Figure 1 to paragraph (g) of this AD ``at the next shop 
visit'' is overly restrictive.
    We partially agree. We agree that requiring removal and replacement 
of the LPT 1st- and 3rd-stage disks with S/Ns listed in Figure 1 to 
paragraph (g) of this AD ``at the next shop visit'' may be overly 
restrictive based on the risk presented in the safety risk assessment. 
We disagree with using the words ``within a service period'' because 
this might allow reinstallation of parts that do not conform to the 
approved type design. Therefore, we changed the references in 
paragraphs (g)(1) and (2) of this AD from ``at the next shop visit'' to 
``at the next piece-part exposure.'' We find that this change still 
meets the safety objectives of this AD. We also removed the Definitions 
paragraph from this AD since it is no longer necessary.

Request To Revise Cost of Compliance

    An individual commenter requested that we define the costs 
associated with the removal of the LPT 1st- or 3rd grade disks from 
each unit.
    We disagree. We did not define a removal cost estimate because 
removal of the LPT 1st- or 3rd grade disks occurs when the unit is ``at 
the next piece-part exposure'' level. Therefore, no additional cost is 
incurred by removal of the LPT disks.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule with the change described previously. We have 
determined that these minor changes:
     [Agr]re consistent with the intent that was proposed in 
the NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this final 
rule.

Costs of Compliance

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

    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, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:

[[Page 2717]]

    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under 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.

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):

2018-24-01 International Aero Engines: Amendment 39-19505; Docket 
No. FAA-2018-0735; Product Identifier 2018-NE-26-AD.

(a) Effective Date

    This AD is effective March 15, 2019.

(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 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- and 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 a serial number (S/N) 
listed in Figure 1 to paragraph (g) of this AD at the next piece-
part exposure, not to exceed 4,800 cycles since new (CSN).
[GRAPHIC] [TIFF OMITTED] TR08FE19.004

    (2) Remove the LPT 1st-stage disk with an S/N listed in Figure 2 
to paragraph (g) of this AD at the next piece-part exposure, not to 
exceed 2,240 CSN.

[[Page 2718]]

[GRAPHIC] [TIFF OMITTED] TR08FE19.005

(h) 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, 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 (i) 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.

(i) 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.

(j) Material Incorporated by Reference

    None.

    Issued in Burlington, Massachusetts on January 31, 2019.
Robert J. Ganley,
Manager, Engine and Propeller Standards Branch, Aircraft Certification 
Service.
[FR Doc. 2019-01127 Filed 2-7-19; 8:45 am]
 BILLING CODE 4910-13-P
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