63014 Federal Register / Vol. 88, No. 177 / Thursday, September 14, 2023 / Rules and Regulations 

of this material at NARA, email 

fr.inspection@nara.gov, or go to: 

www.archives.gov/federal-register/cfr/ibrlocations.html. 

Issued on September 7, 2023. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2023–19898 Filed 9–13–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1208; Project 

Identifier AD–2023–00325–E; Amendment 

39–22545; AD 2023–18–04] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company 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) Model 

CF6–80E1A2, CF6–80E1A3, CF6– 

80E1A4, and CF6–80E1A4/B engines. 

This AD was prompted by a 

manufacturer investigation that revealed 

that a certain forward outer seal and 

certain high-pressure turbine rotor 

(HPTR) stage 1 disks and rotating seals 

were manufactured from material 

suspected to contain iron inclusion, 

which may cause reduced material 

properties and a lower fatigue life 

capability. This AD requires the 

replacement of the affected forward 

outer seal, HPTR stage 1 disks, and 

rotating seals. The FAA is issuing this 

AD to address the unsafe condition on 

these products. 

DATES: This AD is effective October 19, 

2023. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1208; 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, FAA, 2200 South 216th Street, 

Des Moines, WA 98198; 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 Model CF6–80E1A2, 

CF6–80E1A3, CF6–80E1A4, and CF6– 

80E1A4/B engines. The NPRM 

published in the Federal Register on 

June 9, 2023 (88 FR 37812). The NPRM 

was prompted by a report from the 

manufacturer that a certain forward 

outer seal and certain HPTR stage 1 

disks and rotating seals were made from 

billets manufactured from material that 

is suspected to contain iron inclusion. 

Such iron inclusion may cause 

premature fracture and subsequent 

uncontained failure. The FAA has 

determined that the operators with 

affected HPTR stage 1 disks have 

proactively removed these parts from 

service. As a result, the compliance time 

for removal and replacement of the 

affected HPTR stage 1 disks is before 

further flight. This condition, if not 

addressed, could result in uncontained 

debris release, damage to the engine, 

and damage to the aircraft. In the 

NPRM, the FAA proposed to require the 

removal of a certain forward outer seal 

and certain HPTR stage 1 disks and 

rotating seals 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 comments from 

two commenters. The commenters were 

Delta Air Lines, Inc. (DAL) and EVA 

Air. The following presents the 

comments received on the NPRM and 

the FAA’s response to each comment. 

No Affected Parts 

EVA Air commented that its fleet does 

not have any affected parts. The FAA 

acknowledges this comment. 

Request To Expand Applicability and 

Add Parts Prohibition Requirement 

DAL commented that according to the 

engine illustrated parts catalog, the 

R88DT rotor on the CF6–80E1 fleet of 

engines could be installed on the CF6– 

80C2 fleet of engines, specifically on the 

–B2F, –B4F, –B6F, –B7F, and –B8F 

variants. The commenter reasoned that 

without a part installation prohibition 

in the proposed AD, the affected parts 

would be eligible for installation on the 

non-CF6–80E1 engines after the 

required removal action in the AD. DAL 

requested that the FAA revise the 

proposed AD to add certain engine 

variants to paragraph (c), Applicability, 

and to add a parts installation 

prohibition to paragraph (g), Required 

Actions, to prevent installation of the 

removed parts on non-CF6–80E1 

engines. 

The FAA disagrees. This AD applies 

to engine models known to have 

affected parts installed. Paragraph (g) of 

this AD requires the removal of the 

affected parts from service. Since the 

FAA and the manufacturer know where 

these parts are, and parts removed from 

service by AD action are not serviceable 

and not eligible for re-installation on 

any engine, it is not necessary to revise 

paragraph (c) of this AD to add engine 

variants and revise paragraph (g) of this 

AD to prohibit installation of the 

removed parts. Additionally, adding 

new engine variants to this AD would 

delay final issuance of this AD, as such 

a change would increase the scope of 

this AD, requiring new notice and 

comment. We may consider separate 

rulemaking, however. The FAA did not 

change this AD as a result of these 

comments. 

Conclusion 

The FAA reviewed the relevant data, 

considered any comments received, and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on these 

products. Except for minor editorial 

changes, and any other changes 

described previously, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Interim Action 

The FAA considers this AD to be an 

interim action. This unsafe condition is 

still under investigation by the 

manufacturer and, depending on the 

results of that investigation, the FAA 

may consider further rulemaking action. 

Costs of Compliance 

The FAA estimates that this AD 

affects 1 engine installed on airplanes of 

U.S. registry. This engine requires 

replacement of the rotating seal. The 

FAA estimates that there are no engines 

installed on airplanes of U.S. registry 

that requires replacement of the forward 

outer seal or HPTR stage 1 disk. 

The FAA estimates the following 

costs to comply with this AD: 


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Federal Register / Vol. 88, No. 177 / Thursday, September 14, 2023 / Rules and Regulations 63015 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Replace HPTR stage 1 disk .................... 8 work-hours × $85 per hour = $680 ..... $1,479,623 (prorated) ... $1,480,303 $0 

Replace rotating seal ............................... 8 work-hours × $85 per hour = $680 ..... $732,517 (prorated) ...... 733,197 733,197 

Replace forward outer seal ..................... 8 work-hours × $85 per hour = $680 ..... $1,290,000 (prorated) ... 1,290,680 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. 

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 

■ 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: 

2023–18–04 General Electric Company: 

Amendment 39–22545; Docket No. 

FAA–2023–1208; Project Identifier AD– 

2023–00325–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 19, 2023. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to General Electric 

Company Model CF6–80E1A2, CF6–80E1A3, 

CF6–80E1A4, and CF6–80E1A4/B engines 

with an installed forward outer seal, highpressure turbine rotor (HPTR) stage 1 disk, or 

rotating seal having a part number (P/N) and 

serial number (S/N) identified in Table 1 to 

paragraph (c) of this AD. 

TABLE 1 TO PARAGRAPH (c)—AFFECTED FORWARD OUTER SEAL, HPTR STAGE 1 DISKS, AND ROTATING SEALS

Part name P/N Part S/N 

Forward outer seal ................................................................... 1778M70P03 ........................................................................... NCU65340 

HPTR stage 1 disk .................................................................. 1863M36G06 ........................................................................... TMT5TD23 

TMT5TD26 

TMT5TD27 

Rotating seal ............................................................................ 1778M69P06 ........................................................................... BTB20610 

BTB20611 

BTB20612 

BTB26650 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7250, Turbine Section. 

(e) Unsafe Condition 

This AD was prompted by a manufacturer 

investigation that revealed that a certain 

forward outer seal and certain HPTR stage 1 

disks and rotating seals were manufactured 

from material suspected to contain iron 

inclusion, which may cause reduced material 

properties and a lower fatigue life capability. 

The FAA is issuing this AD to prevent 

fracture and subsequent uncontained failure 

of a certain forward outer seal and certain 

HPTR stage 1 disks and rotating seals. The 

unsafe condition, if not addressed, could 

result in uncontained debris release, damage 

to the engine, and damage to the aircraft. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

(1) At the next piece-part exposure of the 

affected forward outer seal or before the 

affected forward outer seal exceeds 5,400 

cycles since new (CSN), whichever occurs 

first after the effective date of this AD, 

remove the affected forward outer seal from 

service and replace with a part eligible for 

installation. 

(2) At the next piece-part exposure of the 

affected rotating seal or before the affected 

rotating seal exceeds 5,200 CSN, whichever 

occurs first after the effective date of this AD, 

remove the affected rotating seal from service 

and replace with a part eligible for 

installation. 

(3) Before further flight after the effective 

date of this AD, remove the affected HPTR 

stage 1 disk from service and replace with a 

part eligible for installation. 


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63016 Federal Register / Vol. 88, No. 177 / Thursday, September 14, 2023 / Rules and Regulations 

(h) Definitions 

(1) For the purpose of this AD, a ‘‘part 

eligible for installation’’ is any forward outer 

seal, HPTR stage 1 disk, or rotating seal that 

does not have a P/N and S/N identified in 

Table 1 to paragraph (c) of this AD. 

(2) For the purpose of this AD, ‘‘piece-part 

exposure’’ is when the affected part is 

removed from the engine and completely 

disassembled. 

(i) Alternative Methods of Compliance 

(AMOCs) 

(1) The Manager, AIR–520, Continued 

Operational Safety 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 branch, send it to the 

attention of the person identified in 

paragraph (j) of this AD and email to: ANEAD-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, FAA, 2200 South 216th Street, Des 

Moines, WA 98198; phone: (781) 238–7178; 

email: alexei.t.marqueen@faa.gov. 

(k) Material Incorporated by Reference 

None. 

Issued on September 7, 2023. 

Ross Landes, 

Deputy Director for Regulatory Operations, 

Compliance & Airworthiness Division, 

Aircraft Certification Service. 

[FR Doc. 2023–19793 Filed 9–13–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF STATE 

22 CFR Part 126 

[Public Notice: 12155] 

RIN 1400–AF69 

International Traffic in Arms 

Regulations: Prohibited Exports, 

Imports, and Sales to or From Certain 

Countries—Cyprus 

AGENCY: Department of State. 

ACTION: Final rule. 

SUMMARY: The Department of State is 

amending the International Traffic in 

Arms Regulations to reflect current 

defense trade policy toward Cyprus. 

DATES: This rule is effective on October 

1, 2023. 

FOR FURTHER INFORMATION CONTACT: Ms. 

Maria Tatarska, Foreign Affairs Officer, 

Office of Defense Trade Controls Policy, 

U.S. Department of State, telephone 

(771) 205–7671; email 

DDTCCustomerService@state.gov. 

ATTN: Regulatory Change, ITAR 

Section 126.1 Cyprus Country Policy 

Update. 

SUPPLEMENTARY INFORMATION: Section 

1250A(d) of the National Defense 

Authorization Act for Fiscal Year 2020 

(Pub. L. 116–92) (2020 NDAA) and 

section 205(d) of the Eastern 

Mediterranean Security and Energy 

Partnership Act of 2019 (Pub. L. 116–94, 

Div. J.) (EMSEPA) provide that the 

policy of denial for exports, reexports, 

and transfers of defense articles on the 

United States Munitions List to the 

Republic of Cyprus shall remain in 

place unless the President determines 

and certifies to the appropriate 

congressional committees, not less than 

annually, that: (A) the Government of 

the Republic of Cyprus is continuing to 

cooperate with the United States 

Government in efforts to implement 

reforms on anti-money laundering 

regulations and financial regulatory 

oversight; and (B) the Government of the 

Republic of Cyprus has made and is 

continuing to take the steps necessary to 

deny Russian military vessels access to 

ports for refueling and servicing. 

On April 14, 2020, the President 

delegated to the Secretary of State the 

functions and authorities vested by the 

2020 NDAA and the EMSEPA (85 FR 

35797, June 12, 2020). On August 14, 

2023, utilizing these authorities, the 

Secretary of State certified to the 

appropriate congressional committees 

that the Republic of Cyprus meets the 

statutory requirements to remove the 

policy of denial for exports, reexports, 

and transfers of defense articles to the 

Republic of Cyprus for fiscal year 2024. 

The Secretary of State further approved 

the suspension of the policy of denial 

for exports, reexports, and transfers of 

defense articles and defense services to 

the Republic of Cyprus for fiscal year 

2024. In conjunction with this action, 

the Secretary of State also suspended 

the policy of denial for retransfers and 

temporary imports destined for or 

originating in the Republic of Cyprus 

and brokering activities involving the 

Republic of Cyprus for fiscal year 2024. 

Accordingly, the Department now 

amends section 126.1 of the 

International Traffic in Arms 

Regulations (ITAR) (22 CFR parts 120 

through 130) to specify that the 

Republic of Cyprus’ status as a 

proscribed destination is suspended 

from October 1, 2023, through 

September 30, 2024. This action 

continues the Department’s current 

policy, which suspended the status of 

the Republic of Cyprus as a proscribed 

destination under § 126.1 of the ITAR 

on October 1, 2022. 

As a result of this change, certain 

exemptions to licensing requirements 

continue to be available for exports, 

reexports, retransfers, and temporary 

imports destined for or originating in 

the Republic of Cyprus and brokering 

activities involving the Republic of 

Cyprus, provided the conditions for use 

of those exemptions are met. 

Applications for licenses and other 

authorizations submitted to the 

Directorate of Defense Trade Controls 

involving the Republic of Cyprus and 

nationals of the Republic of Cyprus are 

subject to case-by-case review. 

Regulatory Analysis and Notices 

Administrative Procedure Act 

This rulemaking is exempt from 

section 553 of the Administrative 

Procedure Act (APA) pursuant to 

section 553(a)(1) as a military or foreign 

affairs function of the United States. As 

the provisions of section 553 do not 

apply to this rulemaking, the 

Department is publishing this rule 

without a delay in its effective date or 

a request for public comment. 

Regulatory Flexibility Act 

Since this rule is exempt from the 

notice-and-comment rulemaking 

provisions of 5 U.S.C. 553, it does not 

require analysis under the Regulatory 

Flexibility Act. 

Unfunded Mandates Reform Act of 1995 

This rulemaking does not involve a 

mandate that will result in the 

expenditure by State, local, and tribal 

governments, in the aggregate, or by the 

private sector, of $100 million or more 

in any year and it will not significantly 

or uniquely affect small governments. 

Therefore, no actions were deemed 

necessary under the provisions of the 

Unfunded Mandates Reform Act of 

1995. 

Congressional Review Act 

It is the view of the Office of 

Information and Regulatory Affairs that 

this rulemaking is not a major rule 

under the criteria of 5 U.S.C. 804. This 

rule will not increase costs or prices and 

should have no adverse effects on 

competition, employment, investment, 

productivity, innovation, or the ability 

of U.S.-based enterprises to compete 

with foreign-based enterprises in 

domestic and export markets. The 

Department does not expect this rule to 

have an annual effect on the economy 

of $100 million or more. 


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