Airworthiness Directives; General Electric Company Turbofan Engines, 57377-57379 [2022-20289]

Download as PDF lotter on DSK11XQN23PROD with RULES1 Federal Register / Vol. 87, No. 181 / Tuesday, September 20, 2022 / Rules and Regulations About Consumer Financial Protection Circulars Consumer Financial Protection Circulars are issued to all parties with authority to enforce Federal consumer financial law. The CFPB is the principal Federal regulator responsible for administering Federal consumer financial law, see 12 U.S.C. 5511, including the Consumer Financial Protection Act’s prohibition on unfair, deceptive, and abusive acts or practices, 12 U.S.C. 5536(a)(1)(B), and 18 other ‘‘enumerated consumer laws,’’ 12 U.S.C. 5481(12). However, these laws are also enforced by State attorneys general and State regulators, 12 U.S.C. 5552, and prudential regulators including the Federal Deposit Insurance Corporation, the Office of the Comptroller of the Currency, the Board of Governors of the Federal Reserve System, and the National Credit Union Administration. See, e.g., 12 U.S.C. 5516(d), 5581(c)(2) (exclusive enforcement authority for banks and credit unions with $10 billion or less in assets). Some Federal consumer financial laws are also enforceable by other Federal agencies, including the Department of Justice and the Federal Trade Commission, the Farm Credit Administration, the Department of Transportation, and the Department of Agriculture. In addition, some of these laws provide for private enforcement. Consumer Financial Protection Circulars are intended to promote consistency in approach across the various enforcement agencies and parties, pursuant to the CFPB’s statutory objective to ensure Federal consumer financial law is enforced consistently. 12 U.S.C. 5511(b)(4). Consumer Financial Protection Circulars are also intended to provide transparency to partner agencies regarding the CFPB’s intended approach when cooperating in enforcement actions. See, e.g., 12 U.S.C. 5552(b) (consultation with CFPB by State attorneys general and regulators); 12 U.S.C. 5562(a) (joint investigatory work between CFPB and other agencies). Consumer Financial Protection Circulars are general statements of policy under the Administrative Procedure Act. 5 U.S.C. 553(b). They provide background information about applicable law, articulate considerations relevant to the Bureau’s exercise of its authorities, and, in the interest of maintaining consistency, advise other parties with authority to enforce Federal consumer financial law. They do not restrict the Bureau’s exercise of its authorities, impose any legal requirements on external parties, or VerDate Sep<11>2014 16:25 Sep 19, 2022 Jkt 256001 create or confer any rights on external parties that could be enforceable in any administrative or civil proceeding. The CFPB Director is instructing CFPB staff as described herein, and the CFPB will then make final decisions on individual matters based on an assessment of the factual record, applicable law, and factors relevant to prosecutorial discretion. Rohit Chopra, Director, Consumer Financial Protection Bureau. [FR Doc. 2022–20324 Filed 9–19–22; 8:45 am] BILLING CODE 4810–AM–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2022–0587; Project Identifier AD–2022–00394–E; Amendment 39–22170; AD 2022–19–01] RIN 2120–AA64 Airworthiness Directives; General Electric Company Turbofan Engines Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) GEnx2B67/P model turbofan engines. This AD was prompted by the detection of an iron inclusion in a forging, which may reduce the fatigue life of certain lowpressure turbine rotor (LPTR) stage 4 disks and LPTR stage 6 disks. This AD requires the removal of certain LPTR stage 4 disks and LPTR stage 6 disks from service and replacement with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective October 25, 2022. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov by searching for and locating Docket No. FAA–2022–0587; 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 final rule, any comments received, and other information. The address for Docket Operations 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: Alexei Marqueen, Aviation Safety PO 00000 Frm 00003 Fmt 4700 Sfmt 4700 57377 Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238–7178; email: Alexei.T.Marqueen@faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to certain GE GEnx-2B67/P model turbofan engines with an affected LPTR stage 4 disk or LPTR stage 6 disk installed, identified by part number and serial number. The NPRM published in the Federal Register on June 22, 2022 (87 FR 37247). The NPRM was prompted by the engine manufacturer notifying the FAA of the detection of an iron inclusion in a forging, which may reduce the fatigue life of certain LPTR stage 4 disks and LPTR stage 6 disks. The manufacturer’s investigation determined that the inclusion is a meltrelated defect and that, as a result of the inclusion forming in the forging, certain LPTR stage 4 disks and LPTR stage 6 disks may have reduced material properties and a lower fatigue life capability. Reduced material properties may cause premature LPTR stage 4 disk and LPTR stage 6 disk fracture, which could result in uncontained debris release. As a result of its investigation, the manufacturer published service information that specifies procedures for the removal and replacement of certain LPTR stage 4 disks and LPTR stage 6 disks installed on GEnx-2B67/P model turbofan engines. This condition, if not addressed, could result in uncontained debris release, damage to the engine, and damage to the airplane. In the NPRM, the FAA proposed to require the removal of certain LPTR stage 4 disks and LPTR stage 6 disks from service and replacement with parts eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products. Discussion of Final Airworthiness Directive Comments The FAA received one comment, from The Boeing Company (Boeing). Boeing concurred with the contents of the NPRM. Conclusion The FAA reviewed the relevant data, considered the comment received, and determined that air safety requires adopting the AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on these products. Except for minor editorial E:\FR\FM\20SER1.SGM 20SER1 57378 Federal Register / Vol. 87, No. 181 / Tuesday, September 20, 2022 / Rules and Regulations changes, this AD is adopted as proposed in the NPRM. Related Service Information dated February 7, 2022. This SB describes procedures for removing the affected LPTR stage 4 disks and LPTR stage 6 disks from service. The FAA reviewed GE GEnx-2B Service Bulletin (SB) 72–0448 R00, Costs of Compliance The FAA estimates that this AD affects 4 engines installed on airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD: ESTIMATED COSTS Action Labor cost Replace the LPTR stage 4 disk ...................... Replace the LPTR stage 6 disk ...................... 500 work-hours × $85 per hour = $42,500 .... 500 work-hours × $85 per hour = $42,500 .... The Amendment 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. The FAA is 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. Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: 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: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) 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. VerDate Sep<11>2014 16:25 Sep 19, 2022 Jkt 256001 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: ■ 2022–19–01 General Electric Company: Amendment 39–22170; Docket No. FAA–2022–0587; Project Identifier AD– 2022–00394–E. (a) Effective Date This airworthiness directive (AD) is effective October 25, 2022. (c) Applicability This AD applies to General Electric Company (GE) GEnx-2B67/P model turbofan engines with an installed: (1) Low-pressure turbine rotor (LPTR) stage 4 disk, part number (P/N) 2440M64P01, with serial number (S/N) JHVPD762, JHVPD763, JHVPD764, or JHVPD765; or (2) LPTR stage 6 disk, P/N 2440M66P01, with S/N JHVVD753 or JHVVD754. (d) Subject Joint Aircraft System Component (JASC) Code 7250, Turbine Section. (e) Unsafe Condition This AD was prompted by the detection of an iron inclusion in a forging, which may reduce the fatigue life of certain LPTR stage 4 disks and LPTR stage 6 disks. The FAA is issuing this AD to prevent fracture and subsequent uncontainment of the LPTR stage 4 disk and LPTR stage 6 disk. The unsafe condition, if not addressed, could result in uncontained debris release, damage to the engine, and damage to the airplane. Frm 00004 Fmt 4700 $420,900 251,400 Cost on U.S. operators $1,262,700 251,400 Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Before the affected LPTR stage 4 disk exceeds 3,000 cycles since new (CSN), remove the affected LPTR stage 4 disk from service and replace with an LPTR stage 4 disk eligible for installation. (2) Before the affected LPTR stage 6 disk exceeds 5,000 CSN, remove the affected LPTR stage 6 disk from service and replace with an LPTR stage 6 disk eligible for installation. (h) Definitions (1) For the purpose of this AD, an ‘‘LPTR stage 4 disk eligible for installation’’ is an LPTR stage 4 disk that does not have P/N 2440M64P01, with S/N JHVPD762, JHVPD763, JHVPD764, or JHVPD765. (2) For the purpose of this AD, an ‘‘LPTR stage 6 disk eligible for installation’’ is an LPTR stage 6 disk that does not have P/N 2440M66P01, with S/N JHVVD753 or JHVVD754. (i) Alternative Methods of Compliance (AMOCs) (b) Affected ADs None. PO 00000 $378,400 208,900 Cost per product (f) Compliance Authority for This Rulemaking Regulatory Findings lotter on DSK11XQN23PROD with RULES1 Parts cost Sfmt 4700 (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 and email 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 Alexei Marqueen, Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; phone: (781) 238–7178; email: Alexei.T.Marqueen@ faa.gov. (k) Material Incorporated by Reference None. E:\FR\FM\20SER1.SGM 20SER1 Federal Register / Vol. 87, No. 181 / Tuesday, September 20, 2022 / Rules and Regulations Issued on August 29, 2022. Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2022–20289 Filed 9–19–22; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 71 [Docket No. FAA–2022–0827; Airspace Docket No. 21–AEA–12] RIN 2120–AA66 Amendment and Revocation of Air Traffic Service (ATS) Routes; Eastern United States Federal Aviation Administration (FAA), DOT. ACTION: Final rule; correction. lotter on DSK11XQN23PROD with RULES1 AGENCY: SUMMARY: This action corrects a final rule published by the FAA in the Federal Register on September 8, 2022, that amended jet routes J–14, J–24, J–52, and J–68; and removed jet routes J–165, J–207, J–506, J–561, J–563, J–573, J–582, and J–585. The final rule inadvertently re-inserted a segment in J–52 that had been removed by a previous rulemaking action. This action makes an editorial correction to the description of J–52 to remove the incorrect route segment. DATES: Effective date 0901 UTC, November 3, 2022. The Director of the Federal Register approves this incorporation by reference action under 1 CFR part 51, subject to the annual revision of FAA Order 7400.11 and publication of conforming amendments. ADDRESSES: FAA Order 7400.11G, Airspace Designations and Reporting Points, and subsequent amendments can be viewed online at www.faa.gov/air_ traffic/publications/. For further information, you can contact the Rules and Regulations Group, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone: (202) 267–8783. FOR FURTHER INFORMATION CONTACT: Paul Gallant, Rules and Regulations Group, Office of Policy, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone: (202) 267–8783. SUPPLEMENTARY INFORMATION: History The FAA published a final rule (87 FR 54880; September 8, 2022) effective on November 3, 2022, that included an amendment of jet route J–52. The rule VerDate Sep<11>2014 16:25 Sep 19, 2022 Jkt 256001 inadvertently re-inserted the route segment ‘‘Liberal, KS, INT Liberal 137° and Ardmore, OK 309° radials’’ in the J–52 description that had been removed as published in an earlier action (87 FR 38916; June 30, 2022) which became effective on September 8, 2022. This rule corrects that error by removing the route segment and editing the J–52 route description accordingly. Jet routes are published in paragraph 2004 of FAA Order JO 7400.11G, dated August 19, 2022, and effective September 15, 2022 which is incorporated by reference in 14 CFR 71.1. The ATS route listed in this document will be published subsequently in FAA Order JO 7400.11. Correction to Final Rule Accordingly, pursuant to the authority delegated to me, the description of jet route J–52, published in the Federal Register of September 8, 2022 (87 FR 54880), FR Doc. 2022– 19287, is corrected as follows: ■ 1. On page 54882, in the first column, correct the description of J–52 to read as follows: J–52 [Corrected] From Vancouver, BC, Canada; via Spokane, WA; Salmon, ID; Dubois, ID; Rock Springs, WY; Falcon, CO; Hugo, CO; to Lamar, CO. From Ardmore, OK; Texarkana, AR; to Sidon, MS. The portion within Canada is excluded. Issued in Washington, DC, on September 13, 2022. Scott M. Rosenbloom, Manager, Airspace Rules and Regulations. [FR Doc. 2022–20202 Filed 9–19–22; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 91 [Docket No. FAA–2020–0874; Amdt. No. 91– 359A] 57379 certificate issued by the FAA, except when such persons are operating U.S.registered aircraft for a foreign air carrier; and operators of U.S.-registered civil aircraft, except when the operator of such aircraft is a foreign air carrier. The FAA finds this action to be necessary to address continuing hazards to persons and aircraft engaged in such flight operations. The FAA also republishes, with minor administrative revisions, the approval process and exemption information for this Special Federal Aviation Regulation (SFAR), consistent with other recently published flight prohibition SFARs. DATES: This final rule is effective on September 20, 2022. FOR FURTHER INFORMATION CONTACT: Bill Petrak, Flight Standards Service, Federal Aviation Administration, 800 Independence Avenue SW, Washington, DC 20591; telephone 202–267–8166; email: bill.petrak@faa.gov. SUPPLEMENTARY INFORMATION: I. Executive Summary This action extends the expiration date of Special Federal Aviation Regulation (SFAR) No. 117, title 14 Code of Federal Regulations (CFR), 91.1617, from October 31, 2022, until October 31, 2024. SFAR No. 117, 14 CFR 91.1617, prohibits certain flight operations in the Tehran FIR (OIIX) by all: U.S. air carriers; U.S. commercial operators; persons exercising the privileges of an airman certificate issued by the FAA, except when such persons are operating U.S.-registered aircraft for a foreign air carrier; and operators of U.S.-registered civil aircraft, except when the operator of such aircraft is a foreign air carrier. Consistent with other recently published flight prohibition SFARs, this action also republishes, with minor administrative revisions, the approval process and exemption information for this SFAR for consistency with other recentlypublished flight prohibition SFARs. RIN 2120–AL75 II. Authority and Good Cause Extension of the Prohibition Against Certain Flights in the Tehran Flight Information Region (FIR) (OIIX) A. Authority The FAA is responsible for the safety of flight in the U.S. and for the safety of U.S. civil operators, U.S.-registered civil aircraft, and U.S.-certificated airmen throughout the world. Sections 106(f) and (g) of title 49, U.S. Code (U.S.C.), subtitle I, establish the FAA Administrator’s authority to issue rules on aviation safety. Subtitle VII of title 49, Aviation Programs, describes in more detail the scope of the agency’s authority. Section 40101(d)(1) provides that the Administrator shall consider in the public interest, among other matters, Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: SUMMARY: This action extends, for an additional two years, the prohibition against certain flight operations in the Tehran Flight Information Region (FIR) (OIIX) by all: U.S. air carriers; U.S. commercial operators; persons exercising the privileges of an airman PO 00000 Frm 00005 Fmt 4700 Sfmt 4700 E:\FR\FM\20SER1.SGM 20SER1

Agencies

[Federal Register Volume 87, Number 181 (Tuesday, September 20, 2022)]
[Rules and Regulations]
[Pages 57377-57379]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2022-20289]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-0587; Project Identifier AD-2022-00394-E; 
Amendment 39-22170; AD 2022-19-01]
RIN 2120-AA64


Airworthiness Directives; General Electric Company Turbofan 
Engines

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain General Electric Company (GE) GEnx-2B67/P model turbofan 
engines. This AD was prompted by the detection of an iron inclusion in 
a forging, which may reduce the fatigue life of certain low-pressure 
turbine rotor (LPTR) stage 4 disks and LPTR stage 6 disks. This AD 
requires the removal of certain LPTR stage 4 disks and LPTR stage 6 
disks from service and replacement with parts eligible for 
installation. The FAA is issuing this AD to address the unsafe 
condition on these products.

DATES: This AD is effective October 25, 2022.

ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov 
by searching for and locating Docket No. FAA-2022-0587; 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 final rule, any 
comments received, and other information. The address for Docket 
Operations 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: Alexei Marqueen, Aviation Safety 
Engineer, ECO Branch, FAA, 1200 District Avenue, Burlington, MA 01803; 
phone: (781) 238-7178; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Background

    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to certain GE GEnx-2B67/P 
model turbofan engines with an affected LPTR stage 4 disk or LPTR stage 
6 disk installed, identified by part number and serial number. The NPRM 
published in the Federal Register on June 22, 2022 (87 FR 37247). The 
NPRM was prompted by the engine manufacturer notifying the FAA of the 
detection of an iron inclusion in a forging, which may reduce the 
fatigue life of certain LPTR stage 4 disks and LPTR stage 6 disks. The 
manufacturer's investigation determined that the inclusion is a melt-
related defect and that, as a result of the inclusion forming in the 
forging, certain LPTR stage 4 disks and LPTR stage 6 disks may have 
reduced material properties and a lower fatigue life capability. 
Reduced material properties may cause premature LPTR stage 4 disk and 
LPTR stage 6 disk fracture, which could result in uncontained debris 
release. As a result of its investigation, the manufacturer published 
service information that specifies procedures for the removal and 
replacement of certain LPTR stage 4 disks and LPTR stage 6 disks 
installed on GEnx-2B67/P model turbofan engines. This condition, if not 
addressed, could result in uncontained debris release, damage to the 
engine, and damage to the airplane. In the NPRM, the FAA proposed to 
require the removal of certain LPTR stage 4 disks and LPTR stage 6 
disks from service and replacement with parts eligible for 
installation. The FAA is issuing this AD to address the unsafe 
condition on these products.

Discussion of Final Airworthiness Directive

Comments

    The FAA received one comment, from The Boeing Company (Boeing). 
Boeing concurred with the contents of the NPRM.

Conclusion

    The FAA reviewed the relevant data, considered the comment 
received, and determined that air safety requires adopting the AD as 
proposed. Accordingly, the FAA is issuing this AD to address the unsafe 
condition on these products. Except for minor editorial

[[Page 57378]]

changes, this AD is adopted as proposed in the NPRM.

Related Service Information

    The FAA reviewed GE GEnx-2B Service Bulletin (SB) 72-0448 R00, 
dated February 7, 2022. This SB describes procedures for removing the 
affected LPTR stage 4 disks and LPTR stage 6 disks from service.

Costs of Compliance

    The FAA estimates that this AD affects 4 engines installed on 
airplanes of U.S. registry.
    The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Replace the LPTR stage 4 disk.........  500 work-hours x $85 per        $378,400        $420,900      $1,262,700
                                         hour = $42,500.
Replace the LPTR stage 6 disk.........  500 work-hours x $85 per         208,900         251,400         251,400
                                         hour = $42,500.
----------------------------------------------------------------------------------------------------------------

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.
    The FAA is 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

    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:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Will not affect intrastate aviation in Alaska, and
    (3) 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 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:

2022-19-01 General Electric Company: Amendment 39-22170; Docket No. 
FAA-2022-0587; Project Identifier AD-2022-00394-E.

(a) Effective Date

    This airworthiness directive (AD) is effective October 25, 2022.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to General Electric Company (GE) GEnx-2B67/P 
model turbofan engines with an installed:
    (1) Low-pressure turbine rotor (LPTR) stage 4 disk, part number 
(P/N) 2440M64P01, with serial number (S/N) JHVPD762, JHVPD763, 
JHVPD764, or JHVPD765; or
    (2) LPTR stage 6 disk, P/N 2440M66P01, with S/N JHVVD753 or 
JHVVD754.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by the detection of an iron inclusion in a 
forging, which may reduce the fatigue life of certain LPTR stage 4 
disks and LPTR stage 6 disks. The FAA is issuing this AD to prevent 
fracture and subsequent uncontainment of the LPTR stage 4 disk and 
LPTR stage 6 disk. The unsafe condition, if not addressed, could 
result in uncontained debris 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

    (1) Before the affected LPTR stage 4 disk exceeds 3,000 cycles 
since new (CSN), remove the affected LPTR stage 4 disk from service 
and replace with an LPTR stage 4 disk eligible for installation.
    (2) Before the affected LPTR stage 6 disk exceeds 5,000 CSN, 
remove the affected LPTR stage 6 disk from service and replace with 
an LPTR stage 6 disk eligible for installation.

(h) Definitions

    (1) For the purpose of this AD, an ``LPTR stage 4 disk eligible 
for installation'' is an LPTR stage 4 disk that does not have P/N 
2440M64P01, with S/N JHVPD762, JHVPD763, JHVPD764, or JHVPD765.
    (2) For the purpose of this AD, an ``LPTR stage 6 disk eligible 
for installation'' is an LPTR stage 6 disk that does not have P/N 
2440M66P01, with S/N JHVVD753 or JHVVD754.

(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 and email 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 Alexei Marqueen, 
Aviation Safety Engineer, ECO Branch, FAA, 1200 District Avenue, 
Burlington, MA 01803; phone: (781) 238-7178; email: 
[email protected].

(k) Material Incorporated by Reference

    None.


[[Page 57379]]


    Issued on August 29, 2022.
Ross Landes,
Deputy Director for Regulatory Operations, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2022-20289 Filed 9-19-22; 8:45 am]
BILLING CODE 4910-13-P
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