8670 Federal Register / Vol. 90, No. 20 / Friday, January 31, 2025 / Rules and Regulations 

during the manufacturing process. This AD 

was also prompted by a determination that 

affected parts could be installed on Model 

A321–253NY airplanes in service. The FAA 

is issuing this AD to address OHDS sensing 

elements that do not properly detect thermal 

bleed leak events. The unsafe condition, if 

not addressed, could result in an air leak 

remaining undetected by the OHDS at an 

affected position and not being isolated 

during flight, possibly resulting in localized 

areas of the main landing gear bay and keel 

beam being exposed to high temperatures, 

and consequent reduced structural integrity 

of the airplane. 

(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, European Union Aviation 

Safety Agency (EASA) AD 2024–0196, dated 

October 18, 2024 (EASA AD 2024–0196). 

(h) Exceptions to EASA AD 2024–0196 

(1) Where EASA AD 2024–0196 refers to 

July 28, 2022 (the effective date of EASA AD 

2022–0147), this AD requires using June 26, 

2023 (the effective date of AD 2023–09–01). 

(2) Where EASA AD 2024–0196 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(3) Where EASA AD 2024–0196 defines 

‘‘Affected part’’ and identifies part numbers 

and corresponding date codes as those 

‘‘listed in Section 1.A of the VSB,’’ for this 

AD, those part numbers and corresponding 

date codes are listed in Section 1.A. of Kidde 

Aerospace & Defense Service Bulletin CFD– 

26–3, dated January 13, 2022; or Revision 1, 

dated March 29, 2022. The date codes listed 

in Section 1.A. of Kidde Aerospace & Defense 

Service Bulletin CFD–26–3, dated January 13, 

2022; and Revision 1, dated March 29, 2022; 

do not apply to parts produced prior to 

November 24, 2004, or after January 31, 2021. 

(4) Where EASA AD 2024–0196 defines a 

serviceable part as ‘‘Any OHDS sensing 

element, eligible for installation in 

accordance with Airbus instructions, that is 

not an affected part,’’ for this AD replace that 

text with ‘‘Any OHDS sensing element, 

eligible for installation, that is not an affected 

part.’’ 

(5) Where paragraph (2) of EASA AD 2024– 

0196 refers to ‘‘any discrepancy as defined in 

the SB,’’ for this AD, a discrepancy is an 

incorrect electronic centralized aircraft 

monitor (ECAM) alert (one not related to AIR 

L WING LEAK) being displayed following the 

inspection of any OHDS sensing element. 

(6) Where the service information 

referenced in EASA AD 2024–0196 specifies 

to send an affected part to the manufacturer, 

this AD does not include that requirement. 

(7) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2024–0196. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2024–0196 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) 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, AIR–520, Continued 

Operational Safety Branch, send it to the 

attention of the person identified in 

paragraph (k) 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, FAA; or EASA; or Airbus 

SAS’s EASA Design Organization Approval 

(DOA). If approved by the DOA, the approval 

must include the DOA-authorized signature. 

(3) Required for Compliance (RC): Except 

as required by paragraph (j)(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. 

(k) Additional Information 

For more information about this AD, 

contact Dan Rodina, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 206– 

231–3225; email dan.rodina@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) 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. 

(3) The following material was approved 

for IBR on February 18, 2025. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2024–0196, dated October 18, 

2024. 

(ii) [Reserved] 

(4) The following material was approved 

for IBR on June 26, 2023 (88 FR 32628, May 

22, 2023). 

(i) Kidde Aerospace & Defense Service 

Bulletin CFD–26–3, dated January 13, 2022. 

(ii) Kidde Aerospace & Defense Service 

Bulletin CFD–26–3, Revision 1, dated March 

29, 2022. 

(5) 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. 

(6) For Kidde Aerospace & Defense 

material identified in this AD, contact Kidde 

Aerospace & Defense, 4200 Airport Drive 

NW, Wilson, NC 27896; phone: 252–246– 

7134; email: avionicssupport@collins.com; 

website kiddeaerospace.com. 

(7) 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. 

(8) 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 December 20, 2024. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2025–02039 Filed 1–30–25; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2314; Project 

Identifier MCAI–2024–00312–T; Amendment 

39–22914; AD 2024–25–12] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus SAS Model A319–111, –112, 

–113, –114, –115, –131, –132, –133, 

–151N, and –153N airplanes; A320 

series airplanes; and A321–211, –212, 

–213, –231, –232, –251N, –252N, 

–253N, –271N, –272N, –251NX, 

–252NX, –253NX, –271NX, and –272NX 

airplanes. This AD was prompted by a 

determination that a damage-tolerance 

and fatigue reassessment of nose 

landing gear (NLG) repairs is necessary 

for certain parts fitted on airplanes 

approved for operation in the 

Commonwealth of Independent States 

(CIS). This AD requires repair and 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 90, No. 20 / Friday, January 31, 2025 / Rules and Regulations 8671 

replacement of all affected parts, and 

introduces restrictions for the 

installation of affected parts, as 

specified in a European Union Aviation 

Safety Agency (EASA) AD, which is 

incorporated by reference. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective March 7, 

2025. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 7, 2025. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–2314; 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, the mandatory 

continuing airworthiness information 

(MCAI), 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. 

Material Incorporated by Reference: 

• For EASA material identified in this 

AD, contact EASA, Konrad-AdenauerUfer 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. 

• 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. 

It is also available at regulations.gov 

under Docket No. FAA–2024–2314. 

FOR FURTHER INFORMATION CONTACT: 

Timothy Dowling, Aviation Safety 

Engineer, FAA, 2200 South 216th St., 

Des Moines, WA 98198; phone: 206– 

231–3667; email: Timothy.P.Dowling@

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 all Airbus SAS Model A319– 

111, A319–112, A319–113, A319–114, 

A319–115, A319–131, A319–132, A319– 

133, A319–151N, A319–153N, A320– 

211, A320–212, A320–214, A320–216, 

A320–231, A320–232, A320–233, A320– 

251N, A320–252N, A320–253N, A320– 

271N, A320–272N, A320–273N, A321– 

211, A321–212, A321–213, A321–231, 

A321–232, A321–251N, A321–251NX, 

A321–252N, A321–252NX, A321–253N, 

A321–253NX, A321–271N, A321– 

271NX, A321–272N, and A321–272NX 

airplanes. The NPRM published in the 

Federal Register on September 25, 2024 

(89 FR 78262). The NPRM was 

prompted by AD 2024–0022, dated 

January 23, 2024, issued by EASA, 

which is the Technical Agent for the 

Member States of the European Union 

(EASA AD 2024–0022) (also referred to 

as the MCAI). The MCAI states that a 

design review led to a determination 

that a damage-tolerance and fatigue 

reassessment of NLG repairs is required 

for certain parts fitted on airplanes 

approved for CIS operation. The EASA 

AD addresses the reassessment of these 

repairs. The unsafe condition, if not 

addressed, could lead to damage or 

failure of the affected parts and the 

NLG, and possible damage to the 

airplane and injury to occupants, 

following modifications for CIS 

operations. 

Different runway standards in CIS 

countries have resulted in the need for 

specific landing gear modifications or 

repairs on those modified landing gears. 

The landing gear components modified 

for CIS runway conditions may be 

inadequate for continued operation. 

While it is possible there are few or no 

U.S. airplanes subject to the repair and 

replacement requirements of this AD, 

the FAA has determined that this AD is 

necessary to identify airplanes with 

affected parts and confirm the need for 

any follow-on actions 

In the NPRM, the FAA proposed to 

require repair and replacement of all 

affected parts and introduced 

restrictions to limit the installation of 

affected parts under certain conditions, 

as specified in EASA AD 2024–0022. 

The FAA is issuing 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–2024–2314. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received a comment from 

The Air Line Pilots Association, 

International (ALPA) who supported the 

NPRM without change. 

Conclusion 

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 

reviewed the relevant data, considered 

the comment 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 this product. Except for 

minor editorial changes, this AD is 

adopted as proposed in the NPRM. 

None of the changes will increase the 

economic burden on any operator. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

EASA AD 2024–0022 specifies 

procedures for repair and replacement, 

as applicable, of the affected parts. 

EASA AD 2024–0022 also limits the 

installation of affected parts under 

certain conditions. 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 

ADDRESSES. 

Costs of Compliance 

The FAA estimates that this AD 

affects 1,680 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per product Cost on U.S. operators 

1 work-hour × $85 per hour = $85 .................................................. $0 $85 Up to $142,800. 

The FAA has received no definitive 

data on which to base the cost estimates 

for the repairs or replacements specified 

in this AD. The cost of parts could be 

as high as $5,620 per airplane. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 


ddrumheller on DSK120RN23PROD with RULES1
8672 Federal Register / Vol. 90, No. 20 / Friday, January 31, 2025 / Rules and Regulations 

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: 

2024–25–12 Airbus SAS: Amendment 39– 

22914; Docket No. FAA–2024–2314; 

Project Identifier MCAI–2024–00312–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective March 7, 2025. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to all Airbus SAS 

airplanes identified in paragraphs (c)(1) 

through (3) of this AD, certificated in any 

category. 

(1) Model A319–111, –112, –113, –114, 

–115, –131, –132, –133, –151N, and –153N 

airplanes. 

(2) Model A320–211, –212, –214, –216, 

–231, –232, –233, –251N, –252N, –253N, 

–271N, –272N, and –273N airplanes. 

(3) Model A321–211, –212, –213, –231, 

–232, –251N, –251NX, –252N, –252NX, 

–253N, –253NX, –271N, –271NX, –272N, and 

–272NX airplanes. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 32, Landing gear. 

(e) Unsafe Condition 

This AD was prompted by a determination 

that a damage-tolerance and fatigue 

reassessment of nose landing gear (NLG) 

repairs is necessary for certain parts fitted on 

airplanes approved for operation in the 

Commonwealth of Independent States (CIS). 

The FAA is issuing this AD to address the 

reassessment of these repairs. The unsafe 

condition, if not addressed, could lead to 

damage or failure of the affected parts and 

the NLG, and possible damage to the airplane 

and injury to occupants. 

(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, European Union Aviation 

Safety Agency (EASA) AD 2024–0022, dated 

January 23, 2024 (EASA AD 2024–0022). 

(h) Exceptions to EASA AD 2024–0022 

(1) Where EASA AD 2024–0022 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2024–0022. 

(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, mail it to the address 

identified in paragraph (j) of this AD. 

Information may be emailed 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, 2200 South 216th St., Des 

Moines, WA 98198; 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 

(IBR) 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 2024–0022, dated January 23, 

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 

EASA AD 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. 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 90, No. 20 / Friday, January 31, 2025 / Rules and Regulations 8673 

Issued on January 28, 2025. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2025–02066 Filed 1–30–25; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–0996; Project 

Identifier AD–2023–00365–A,Q,R,T; 

Amendment 39–22917; AD 2024–26–02] 

RIN 2120–AA64 

Airworthiness Directives; Various 

Airplanes and Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2021–07– 

13 for certain Pacific Scientific 

Company rotary buckle assemblies 

(buckles). AD 2021–07–13 required 

inspecting each specified buckle 

including its buckle handle vane and 

prohibited installing affected buckles. 

This AD was prompted by the 

publication of an updated service 

bulletin, which revises the applicability 

based on date of manufacture of the 

affected buckles. This AD retains certain 

requirements of AD 2021–07–13, 

reduces the applicability, and requires 

performing corrective actions by 

complying with certain portions of the 

updated service bulletin. The FAA is 

issuing this AD to address the unsafe 

condition on these products. 

DATES: This AD is effective March 7, 

2025. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of March 7, 2025. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–0996; 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. 

Material Incorporated by Reference: 

• For Parker Meggitt material 

identified in this AD, contact Parker 

Meggitt Services, 1785 Voyager Avenue, 

Simi Valley, CA 93063; phone: (877) 

666–0712; email: TechSupport@

meggitt.com. 

• You may view this material at the 

FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood 

Pkwy., Room 6N–321, Fort Worth, TX 

76177. For information on the 

availability of this material at the FAA, 

call: (817) 222–5110. 

Other Related Material: For other 

related Parker Meggitt material 

identified in this AD, contact Parker 

Meggitt Services, at the Parker Meggitt 

Services contact information under 

Material Incorporated by Reference 

above. 

FOR FURTHER INFORMATION CONTACT: Hal 

Jensen, Aviation Safety Engineer, FAA, 

3960 Paramount Boulevard, Lakewood, 

CA 90712; phone: (303) 342–1080; 

email: hal.jensen@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2021–07–13, 

Amendment 39–21490 (86 FR 17703, 

April 6, 2021) (AD 2021–07–13). AD 

2021–07–13 applied to Pacific Scientific 

Company buckles part numbers 

1111430 and 1111475, all dash 

numbers, installed on but not limited to 

Bombardier Inc., Learjet Inc., Mitsubishi 

Heavy Industries, Ltd., Textron 

Aviation, Inc. (type certificate (TC) 

previously held by Cessna Aircraft 

Company), and Viking Air Limited (TC 

previously held by de Havilland, Inc.) 

model airplanes and Airbus Helicopters 

(TC previously held by Eurocopter 

France) model helicopters. The NPRM 

published in the Federal Register on 

April 9, 2024 (89 FR 24742). The NPRM 

was prompted by a manufacturer 

determination that the cracking on the 

buckle handle was caused by a material 

process issue and stated that the issue 

was resolved in 2007. Accordingly, the 

manufacturer published revised 

material to revise the applicability by 

date of manufacture and clarify 

procedures. In the NPRM, the FAA 

proposed to require revising the 

applicability to plastic buckles with a 

date of manufacture on or before May 

31, 2007, or buckles whose date of 

manufacture cannot be determined, 

except not those buckles repaired with 

the installation of an airworthy buckle 

handle after May 31, 2007, and marked 

with a BLUE logo on the center button. 

In the NPRM, the FAA also proposed to 

clarify that the unsafe condition could 

result in occupants not being able to 

release the buckle in certain emergency 

landing conditions. Furthermore, the 

FAA proposed to require using the 

revised service bulletin to accomplish 

its requirements and add a special flight 

permit limitation. 

Lastly, the NPRM updated the contact 

information to obtain related material, 

and the FAA proposed to move and 

update the contents of Note 1 in AD 

2021–07–13 to the preamble of this AD. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

seven commenters. The commenters 

were Air Wisconsin Airlines, American 

Airlines (AAL), All Nippon Airways 

(ANA), Delta Air Lines, Inc., Horizon 

Air, Southwest Airlines, and United 

Airlines (UAL). The following presents 

the comments received on the NPRM 

and the FAA’s response to each 

comment. 

Requests To Correct the Date of the 

Related Material 

Delta Air Lines, Inc. and Horizon Air 

requested the FAA revise Note 1 to 

paragraph (c)(1) of the Applicability 

paragraph to update the date for Meggitt 

Service Information Letter SIL Restraint25–002–2023, dated January 24, 2023. 

The commenters stated the updated 

publication date of this related material 

is September 25, 2023, and not January 

24, 2023. 

The FAA agrees and has revised the 

citations of that service information 

letter in Note 1 to paragraph (c)(1) of 

this AD, as well as the Other Related 

Material section in this final rule. 

Request To Exclude Newly 

Manufactured Aircraft 

Delta Airlines, Inc. stated that it is 

receiving newly-manufactured airplanes 

with the restraint systems provided in 

the related material. Delta Airlines, Inc. 

further commented that Meggitt 

information specifies that buckles 

produced after May 2007 do not have 

the safety concern and are considered 

airworthy. Accordingly, Delta Airlines, 

Inc. requested the FAA revise paragraph 

(c)(1) of the proposed AD to exclude 

these aircraft that are new into service 

as these aircraft will have brand new 

buckles installed after 2007. 

The FAA disagrees. The FAA 

determined because Meggitt is the 

Technical Standard Order Authorization 

(TSOA) holder and does not hold an 

approval for installation of the 

restraints, it is not responsible for 

recording or controlling which aircraft 

airframes the applicable restraint 


ddrumheller on DSK120RN23PROD with RULES1