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.

Proposed Rules Federal Register

7996 

Vol. 90, No. 14 

Thursday, January 23, 2025 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2025–0009; Project 

Identifier MCAI–2024–00317–T] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to adopt a 

new airworthiness directive (AD) for 

certain Airbus SAS Model A319–111, 

–112, –113, –114, –115, –131, –132, 

–133 airplanes. This proposed AD was 

prompted by a widespread fatigue 

damage (WFD) scenario review for a 

certification project that indicated 

several cracks found around the potable 

water and wastewater service panels 

were WFD instead of typical fatigue. 

This proposed AD would require 

modification of the potable water and 

wastewater service panels, as specified 

in a European Union Aviation Safety 

Agency (EASA) AD, which is proposed 

for incorporation by reference (IBR). The 

FAA is proposing this AD to address the 

unsafe condition on these products. 

DATES: The FAA must receive comments 

on this proposed AD by March 10, 2025. 

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 

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. 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2025–0009; 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 mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For EASA material identified in this 

proposed AD, contact EASA, KonradAdenauer-Ufer 3, 50668 Cologne, 

Germany; telephone +49 221 8999 000; 

email ADs@easa.europa.eu; website 

easa.europa.eu. You may find this 

material on the EASA website at 

ad.easa.europa.eu. It is also available at 

regulations.gov under Docket No. FAA– 

2025–0009. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

material at the FAA, call 206–231–3195. 

FOR FURTHER INFORMATION CONTACT: 

Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; phone: 

206–231–3667; email: 

Timothy.P.Dowling@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites 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–2025–0009; Project 

Identifier MCAI–2024–00317–T’’ at the 

beginning of your comments. The most 

helpful comments reference a specific 

portion of the proposal, explain the 

reason for any recommended change, 

and include supporting data. The FAA 

will consider all comments received by 

the closing date and may amend this 

proposal because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to 

regulations.gov, including any personal 

information you provide. The agency 

will also post a report summarizing each 

substantive verbal contact received 

about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

as ‘‘PROPIN.’’ The FAA will treat such 

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Timothy Dowling, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; phone: 206–231–3667; email: 

Timothy.P.Dowling@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2024–0105, 

dated May 30, 2024 (EASA AD 2024– 

0105) (also referred to as the MCAI), to 

correct an unsafe condition for certain 

Airbus SAS Model A319–111, –112, 

–113, –114, –115, –131, –132, and –133 

airplanes. The MCAI states that, during 

the WFD scenario review of the frame 

for certification of the Airbus SAS 

Model A321XLR, it has been identified 

that some previous findings of the fullscale fatigue test in WFD areas were not 

properly correlated. The WFD criteria in 

terms of number of findings per location 

and end-of-test demonstrated life have 

to be assessed accordingly. Several 

cracks found around the potable water 

and wastewater service panels (WFD 

areas) shall be considered as WFD 

instead of typical fatigue findings; 

therefore, WFD fatigue calculations 

must be updated accordingly. This 

condition, if not addressed, could affect 

the structural integrity of the fuselage. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 7997 

The A321XLR frame design is similar 

to that of the Airbus SAS Model A319– 

111, –112, –113, –114, –115, –131, –132, 

and –133 airplanes. Therefore, these 

airplanes are subject to the unsafe 

condition. The FAA is proposing this 

AD to address the unsafe condition on 

these products. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2025–0009. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

EASA AD 2024–0105 specifies 

procedures for modification of the 

potable water service panel at stringer 

(STR) 43 between frames (FRs) 65 and 

66 and the wastewater service panel at 

STR 40 between FRs 65 and 66. 

Modification includes: 

• Removing the solid rivets in both 

service panels areas; 

• Performing a rotating probe test 

(i.e., inspection) of the fastener holes for 

both service panels for any crack; 

• If any crack is detected in any 

service panel, obtaining and following 

approved repair instructions; 

• If any crack is not detected in the 

potable water service panel, cold 

working the fastener holes; 

• If any crack is not detected in the 

wastewater service panel, drilling the 

fastener holes; and 

• Installing hi-lok fasteners with 

interference fit in both service panels. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

is issuing this NPRM after determining 

that the unsafe condition described 

previously is likely to exist or develop 

in other products of the same type 

design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would require 

accomplishing the actions specified in 

EASA AD 2024–0105 described 

previously, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Related Rulemaking 

EASA AD 2024–0105 specifies that 

accomplishment of the modification on 

an airplane supersedes airworthiness 

limitations tasks 534141–02–2 and 

534142–02–1 for that airplane unless 

the approved repair instructions specify 

otherwise. Note the FAA issued an 

NPRM, FAA Docket No. FAA–2024– 

2145 (89 FR 77045, September 20, 

2024), to propose mandating new 

airworthiness limitations, including 

those tasks. 

Explanation of Required Compliance 

Information 

In the FAA’s ongoing efforts to 

improve the efficiency of the AD 

process, the FAA developed a process to 

use some civil aviation authority (CAA) 

ADs as the primary source of 

information for compliance with 

requirements for corresponding FAA 

ADs. The FAA has been coordinating 

this process with manufacturers and 

CAAs. As a result, the FAA proposes to 

incorporate EASA AD 2024–0105 by 

reference in the FAA final rule. This 

proposed AD would, therefore, require 

compliance with EASA AD 2024–0105 

in its entirety through that 

incorporation, except for any differences 

identified as exceptions in the 

regulatory text of this proposed AD. 

Using common terms that are the same 

as the heading of a particular section in 

EASA AD 2024–0105 does not mean 

that operators need comply only with 

that section. For example, where the AD 

requirement refers to ‘‘all required 

actions and compliance times,’’ 

compliance with this AD requirement is 

not limited to the section titled 

‘‘Required Action(s) and Compliance 

Time(s)’’ in EASA AD 2024–0105. 

Material required by EASA AD 2024– 

0105 for compliance will be available at 

regulations.gov under Docket No. FAA– 

2025–0009 after the FAA final rule is 

published. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 344 

airplanes of U.S. registry. The FAA 

estimates the following costs to comply 

with this proposed AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

27 work-hours × $85 per hour = $2,295 ..................................................................................... $110 $2,405 $827,320 

The FAA has received no definitive 

data on which to base the cost estimates 

for the on-condition repair of any crack, 

as specified in this proposed AD. 

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 

The FAA 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) Would not affect intrastate 

aviation in Alaska, and 

(3) Would not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 


ddrumheller on DSK120RN23PROD with PROPOSALS1
7998 Federal Register / Vol. 90, No. 14 / Thursday, January 23, 2025 / Proposed Rules 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

Airbus SAS: Docket No. FAA–2025–0009; 

Project Identifier MCAI–2024–00317–T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by March 10, 

2025. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus SAS Model 

A319–111, –112, –113, –114, –115, –131, 

–132, and –133 airplanes, certificated in any 

category, as identified in European Union 

Aviation Safety Agency (EASA) AD 2024– 

0105, dated May 30, 2024 (EASA AD 2024– 

0105). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 53, Fuselage. 

(e) Unsafe Condition 

This AD was prompted by a widespread 

fatigue damage (WFD) scenario review for a 

certification project that indicated several 

cracks found around the potable water and 

wastewater service panels are WFD instead of 

typical fatigue. The FAA is issuing this AD 

to address cracks around the potable water 

and wastewater service panels. The unsafe 

condition, if not addressed, could affect 

structural integrity of the fuselage. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Requirements 

Except as specified in paragraph (h) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, EASA AD 2024–0105. 

(h) Exception to EASA AD 2024–0105 

This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2024–0105. 

(i) Additional AD Provisions 

The following provisions also apply to this 

AD: 

(1) Alternative Methods of Compliance 

(AMOCs): 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 responsible Flight Standards Office, as 

appropriate. If sending information directly 

to the manager of the Continued Operational 

Safety Branch, send it to the attention of the 

person identified in paragraph (j) of this AD 

and email to: AMOC@faa.gov. Before using 

any approved AMOC, notify your appropriate 

principal inspector, or lacking a principal 

inspector, the manager of the responsible 

Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, AIR–520, Continued 

Operational Safety Branch, FAA; or EASA; or 

Airbus SAS’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (i)(2) of this AD, if 

any material contains procedures or tests that 

are identified as RC, those procedures and 

tests must be done to comply with this AD; 

any procedures or tests that are not identified 

as RC are recommended. Those procedures 

and tests that are not identified as RC may 

be deviated from using accepted methods in 

accordance with the operator’s maintenance 

or inspection program without obtaining 

approval of an AMOC, provided the 

procedures and tests identified as RC can be 

done and the airplane can be put back in an 

airworthy condition. Any substitutions or 

changes to procedures or tests identified as 

RC require approval of an AMOC. 

(j) Additional Information 

For more information about this AD, 

contact Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: 206–231– 

3667; email: Timothy.P.Dowling@faa.gov. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the material listed in this paragraph under 5 

U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless this AD specifies otherwise. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2024–0105, dated May 30, 2024. 

(ii) [Reserved] 

(3) For EASA material identified in this 

AD, contact EASA, Konrad-Adenauer-Ufer 3, 

50668 Cologne, Germany; telephone +49 221 

8999 000; email ADs@easa.europa.eu; 

website easa.europa.eu. You may find this 

material on the EASA website at 

ad.easa.europa.eu. 

(4) You may view this material at the FAA, 

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

visit www.archives.gov/federal-register/cfr/ 

ibr-locations or email fr.inspection@nara.gov. 

Issued on January 15, 2025. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2025–01362 Filed 1–22–25; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1883; Project 

Identifier AD–2023–01120–E] 

RIN 2120–AA64 

Airworthiness Directives; General 

Electric Company Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Supplemental notice of 

proposed rulemaking (SNPRM). 

SUMMARY: The FAA is revising a notice 

of proposed rulemaking (NPRM) that 

applied to all General Electric Company 

(GE) Model CF34–10E2A1, CF34–10E6, 

CF34–10E6A1, CF34–10E7, and CF34– 

10E7–B engines with certain partnumbered high-pressure turbine (HPT) 

shroud/low pressure turbine (LPT) 

nozzle assemblies installed. This action 

revises the NPRM by adding Model 

CF34–10E5 and CF34–10E5A1 engines 

to the applicability. The FAA is 

proposing this airworthiness directive 

(AD) to address the unsafe condition on 

these products. Since these actions 

would impose an additional burden 

over those in the NPRM the agency is 

requesting comments on this SNPRM. 

DATES: The FAA must receive comments 

on this SNPRM by March 10, 2025. 

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 

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. 


ddrumheller on DSK120RN23PROD with PROPOSALS1