Federal Register / Vol. 89, No. 1 / Tuesday, January 2, 2024 / Rules and Regulations 21 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1823; Project 

Identifier MCAI–2023–00314–T; Amendment 

39–22628; AD 2023–25–01] 

RIN 2120–AA64 

Airworthiness Directives; MHI RJ 

Aviation ULC (Type Certificate 

Previously Held by Bombardier, Inc.) 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

MHI RJ Model CL–600–2C10 (Regional 

Jet Series 700, 701 & 702), CL–600–2C11 

(Regional Jet Series 550), CL–600–2D15 

(Regional Jet Series 705), CL–600–2D24 

(Regional Jet Series 900), and CL–600– 

2E25 (Regional Jet Series 1000) 

airplanes. This AD was prompted by a 

report of a passenger seat Y-belt (lap 

belt) re-installed in the wrong 

orientation, due to an incorrect 

maintenance manual. This AD requires 

inspecting certain Y-belts for correct 

installation and damage and corrective 

actions if necessary. This AD also 

prohibits the use of certain revisions of 

a maintenance task. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective February 6, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 6, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1823; 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 MHI RJ service information 

identified in this final rule, contact MHI 

RJ Aviation Group, Customer Response 

Center, 3655 Ave. des GrandesTourelles, Suite 110, Boisbriand, 

Que ́bec J7H 0E2 Canada; North America 

toll-free telephone 833–990–7272 or 

direct-dial telephone 450–990–7272; fax 

514–855–8501; email thd.crj@

mhirj.com; website mhirj.com. 

• You may view this service 

information 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– 

2023–1823. 

FOR FURTHER INFORMATION CONTACT: 

Fatin Saumik, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 516– 

228–7300; email: 9-avs-nyaco-cos@

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 MHI RJ Model CL–600– 

2C10 (Regional Jet Series 700, 701 & 

702), CL–600–2C11 (Regional Jet Series 

550), CL–600–2D15 (Regional Jet Series 

705), CL–600–2D24 (Regional Jet Series 

900), and CL–600–2E25 (Regional Jet 

Series 1000) airplanes. The NPRM 

published in the Federal Register on 

September 13, 2023 (88 FR 62709). The 

NPRM was prompted by AD CF–2023– 

10, dated February 17, 2023, issued by 

Transport Canada, which is the aviation 

authority for Canada (referred to after 

this as the MCAI). The MCAI states that 

following maintenance on a Model CL– 

600–2C10 airplane, a Y-belt (also known 

as lap belt) was re-installed in the wrong 

orientation. The MCAI further states 

that the instructions contained within 

the aircraft maintenance manual (AMM) 

on how to install the passenger seat Ybelts, showed an incorrect orientation of 

the Y-belt assembly. The MCAI confirms 

the manufacturer updated the AMM 

tasks and these instructions have been 

corrected. Y-belts installed in the wrong 

orientation, if not corrected, could result 

in passenger injury due to head impact 

on the front monument during an 

emergency landing. 

In the NPRM, the FAA proposed to 

require inspecting certain Y-belts for 

correct installation and damage and 

corrective actions if necessary. The FAA 

also proposed to prohibit the use of 

certain revisions of a maintenance task. 

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–2023–1823. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

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 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. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed MHI RJ Service 

Bulletin 670BA–25–135, Revision B, 

dated November 25, 2022. This service 

information specifies procedures to 

inspect for correct installation (as 

shown in certain maintenance tasks) of 

each passenger seat Y-belt. This service 

information also specifies corrective 

actions, which include re-installing 

each incorrectly installed Y-belt per 

certain maintenance tasks and 

addressing damage (includes dents or 

misshapen hooks that attach the belt to 

the seat). 

This service information 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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 606 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 


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22 Federal Register / Vol. 89, No. 1 / Tuesday, January 2, 2024 / Rules and Regulations 

ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

2 work-hours × $85 per hour = $170 .................................................................................................. $0 $170 $103,020 

The FAA estimates the following 

costs to do any necessary replacements 

that would be required based on the 

results of the inspection. The agency has 

no way of determining the number of 

aircraft that might need these 

replacements. 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per product 

Up to 0.5 work-hours × $85 per hour = $43 .................... Up to $550 per Y-belt assembly ..................................... Up to $593. 

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: 

2023–25–01 MHI RJ Aviation ULC (Type 

Certificate Previously Held by 

Bombardier, Inc.): Amendment 39– 

22628; Docket No. FAA–2023–1823; 

Project Identifier MCAI–2023–00314–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 6, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to MHI RJ Aviation ULC 

(Type Certificate previously held by 

Bombardier, Inc.) airplanes, certificated in 

any category, identified in paragraphs (c)(1) 

through (3) of this AD. 

(1) Model CL–600–2C10 (Regional Jet 

Series 700, 701 & 702) and CL–600–2C11 

(Regional Jet Series 550) airplanes, serial 

numbers (S/N) 10001 through 10348 

inclusive. 

(2) Model CL–600–2D15 (Regional Jet 

Series 705) and CL–600–2D24 (Regional Jet 

Series 900) airplanes, S/N 15001 through 

15499 inclusive. 

(3) Model CL–600–2E25 (Regional Jet 

Series 1000) airplanes, S/N 19001 through 

19064 inclusive. 

(d) Subject 

Air Transport Association (ATA) of 

America Code: 25, Equipment/Furnishings. 

(e) Unsafe Condition 

This AD was prompted by a report of a 

passenger seat Y-belt (lap-belt) re-installed in 

the wrong orientation, due to an incorrect 

maintenance manual. The FAA is issuing this 

AD to detect and address Y-belts that are 

incorrectly installed. The unsafe condition, if 

not addressed, could result in passenger 

injury due to head impact on the front 

monument during an emergency landing. 

(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: Within 24 months after the effective date 

of this AD, inspect each Y-belt for correct 

installation and damage and, if any incorrect 

installation or damage is found, within 24 

months after the effective date of this AD, do 

all applicable corrective actions, in 

accordance with paragraph B, ‘‘Procedure,’’ 

of the Accomplishment Instructions of MHI 

RJ Service Bulletin 670BA–25–135, Revision 

B, dated November 25, 2022. For this AD, 

damage includes dents or misshapen hooks 

that attach the belt to the seat. 

Note 1 to paragraph (g): Y-belts are also 

known as lap belts. 

(h) Exceptions to Service Information 

Where paragraph B, ‘‘Procedure,’’ of the 

Accomplishment Instructions of MHI RJ 

Service Bulletin 670BA–25–135, Revision B, 

dated November 25, 2022, specifies to ‘‘refer 

to AMM’’ replace those words with ‘‘in 

accordance with AMM.’’ 

(i) Maintenance Task Prohibition 

As of the effective date of this AD, it is 

prohibited to use MHI RJ Aviation ULC 

Aircraft Maintenance Manual (AMM) task 

25–21–04–400–801, revision 69 or earlier. 

(j) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraph (g) of this AD, if those 

actions were performed before the effective 

date of this AD using the service information 


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Federal Register / Vol. 89, No. 1 / Tuesday, January 2, 2024 / Rules and Regulations 23 

identified in paragraph (j)(1) or (2) of this AD, 

provided the actions were done using MHI RJ 

AMM Revision 70, dated May 25, 2022, or 

Revision 71, dated December 16, 2022. 

(1) MHI RJ Service Bulletin 670BA–25– 

135, dated June 1, 2022. 

(2) MHI RJ Service Bulletin 670BA–25– 

135, Revision A, dated August 30, 2022. 

(k) Additional AD Provisions 

The following provisions also apply to this 

AD. 

(1) Alternative Methods of Compliance 

(AMOCs): The Manager, International 

Validation 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 International Validation 

Branch, mail it to the address identified in 

paragraph (l)(2) of this AD. Information may 

be emailed to: 9-AVS-AIR-730-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, International Validation 

Branch, FAA; or Transport Canada or MHI RJ 

Aviation ULC’s Transport Canada Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(l) Additional Information 

(1) Refer to Transport Canada AD CF– 

2023–10, dated February 17, 2023, for related 

information. This Transport Canada AD may 

be found in the AD docket at regulations.gov 

under Docket No. FAA–2023–1823. 

(2) For more information about this AD, 

contact Fatin Saumik, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 516– 

228–7300; email: 9-avs-nyaco-cos@faa.gov. 

(3) Service information identified in this 

AD that is not incorporated by reference is 

available at the addresses specified in 

paragraphs (m)(3) and (4) of this AD. 

(m) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the service information listed in this 

paragraph under 5 U.S.C. 552(a) and 1 CFR 

part 51. 

(2) You must use this service information 

as applicable to do the actions required by 

this AD, unless the AD specifies otherwise. 

(i) MHI RJ Service Bulletin 670BA–25–135, 

Revision B, dated November 25, 2022. 

(ii) [Reserved] 

(3) For MHI RJ Aviation ULC service 

information identified in this AD, contact 

MHI RJ Aviation Group, Customer Response 

Center, 3655 Ave. des Grandes-Tourelles, 

Suite 110, Boisbriand, Que ́bec J7H 0E2 

Canada; North America toll-free telephone 

833–990–7272 or direct-dial telephone 450– 

990–7272; fax 514–855–8501; email thd.crj@

mhirj.com; website mhirj.com. 

(4) You may view this service information 

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 December 5, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2023–28801 Filed 12–29–23; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1822; Project 

Identifier MCAI–2023–00653–T; Amendment 

39–22624; AD 2023–24–07] 

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 A310 airplanes. This 

AD was prompted by a determination 

that new or more restrictive 

airworthiness limitations are necessary. 

This AD requires revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations, 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 February 6, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 6, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1822; 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 incorporated by 

reference 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. 

• 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 in the AD docket at 

regulations.gov under Docket No. FAA– 

2023–1822. 

FOR FURTHER INFORMATION CONTACT: Dan 

Rodina, Aviation Safety Engineer, FAA, 

2200 South 216th Street, Des Moines, 

WA 98198; telephone 206–231–3225; 

email dan.rodina@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 A310 

series airplanes. The NPRM published 

in the Federal Register on September 8, 

2023 (88 FR 61990). The NPRM was 

prompted by AD 2023–0092, dated May 

5, 2023, issued by EASA, which is the 

Technical Agent for the Member States 

of the European Union (EASA AD 2023– 

0092) (also referred to as the MCAI). The 

MCAI states that new or more restrictive 

airworthiness limitations have been 

developed. 

In the NPRM, the FAA proposed to 

require revising the existing 

maintenance or inspection program, as 

applicable, to incorporate new or more 

restrictive airworthiness limitations, as 

specified in EASA AD 2023–0092. The 

FAA is issuing this AD to address 

fatigue cracking, damage, or corrosion in 

principal structural elements. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–1822. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from 

FedEx who supported the NPRM 

without change. 

Conclusion 

This product has been approved by 

the aviation authority of another 


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