This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents.

Rules and Regulations Federal Register

76399 

Vol. 89, No. 181 

Wednesday, September 18, 2024 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1470; Project 

Identifier MCAI–2023–01284–T; Amendment 

39–22814; AD 2024–16–08] 

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 Aviation ULC Model CL–600– 

2C10 (Regional Jet Series 700, 701 & 

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

705), and CL–600–2D24 (Regional Jet 

Series 900) airplanes. This AD was 

prompted by a report that the electrical 

harnesses in the overhead bin above the 

class divider may have insufficient or 

no separation with the class divider 

mounting plate. This AD requires 

inspecting the overhead bin electrical 

harnesses at the class dividers and 

modifying the class divider mounting 

plate assembly or accomplishing a 

temporary repair if necessary; and, 

eventually modifying the class divider 

mounting plate assembly if a 

modification was not done after 

accomplishing the inspection, as 

specified in a Transport Canada 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 October 23, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 23, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1470; 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 Transport Canada material 

identified in this AD, contact Transport 

Canada, Transport Canada National 

Aircraft Certification, 159 Cleopatra 

Drive, Nepean, Ontario K1A 0N5, 

Canada; telephone 888–663–3639; email 

TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca. 

You may find this material on the 

Transport Canada website at 

tc.canada.ca/en/aviation. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th Street, 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–2024–1470. 

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 Aviation ULC 

Model CL–600–2C10 (Regional Jet 

Series 700, 701 & 702), CL–600–2D15 

(Regional Jet Series 705), and CL–600– 

2D24 (Regional Jet Series 900) airplanes. 

The NPRM published in the Federal 

Register on May 29, 2024 (89 FR 46336). 

The NPRM was prompted by AD CF– 

2023–79, dated December 21, 2023, 

issued by Transport Canada, which is 

the aviation authority for Canada 

(Transport Canada AD CF–2023–79) 

(also referred to as the MCAI). The 

MCAI states that the electrical harnesses 

in the overhead bin above the class 

divider may have insufficient or no 

separation with the class divider 

mounting plate. This condition, if not 

corrected, could result in the electrical 

harnesses becoming chafed, which 

could affect the following aircraft 

systems: ordinance signs, emergency 

lights/signs, passenger oxygen, and 

passenger address and air conditioning 

systems. 

In the NPRM, the FAA proposed to 

require inspecting the overhead bin 

electrical harnesses at the class dividers 

and modifying the class divider 

mounting plate assembly or 

accomplishing a temporary repair if 

necessary; and, eventually modifying 

the class divider mounting plate 

assembly if a modification was not done 

after accomplishing the inspection, as 

specified in Transport Canada AD CF– 

2023–79. 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–2024–1470. 

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. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

Transport Canada AD CF–2023–79 

specifies procedures for inspecting the 

left-hand and right-hand overhead bin 

electrical harnesses at the class divider 

for damage (e.g., chafing), and if damage 

is found, modifying the class divider 

mounting plate assembly to improve the 


khammond on DSKJM1Z7X2PROD with RULES
76400 Federal Register / Vol. 89, No. 181 / Wednesday, September 18, 2024 / Rules and Regulations 

overhead bin harnesses protection or 

accomplishing a temporary repair. 

Transport Canada AD CF–2023–79 also 

specifies procedures for eventually 

modifying the class divider mounting 

plate assembly if a modification was not 

done after accomplishing the inspection 

(i.e., if a temporary repair was done or 

if no damage was found after 

accomplishing the inspection). 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. 

Costs of Compliance 

The FAA estimates that this AD 

affects 246 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 

3 work-hours × $85 per hour = $255 ....................................... $0 $255 ........................................ $62,730. 

Up to 9 work-hours × $85 per hour = $765 ............................. $366 Up to $1,131 ........................... Up to $278,226. 

The FAA estimates the following 

costs to do any necessary on-condition 

actions that would be required based on 

the results of any required actions. The 

FAA has no way of determining the 

number of aircraft that might need these 

on-condition actions: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS * 

Labor cost Parts cost Cost per product 

Up to 9 work-hours × $85 per hour = $765 ................................................................. $366 Up to $1,131. 

* The FAA has received no definitive data on which to base the cost estimates for the on-condition optional temporary repair specified in this 

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 

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: 

2024–16–08 MHI RJ Aviation ULC (Type 

Certificate Previously Held by 

Bombardier, Inc.): Amendment 39– 

22814; Docket No. FAA–2024–1470; 

Project Identifier MCAI–2023–01284–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 23, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to MHI RJ Aviation ULC 

(type certificate previously held by 

Bombardier, Inc.) Model CL–600–2C10 

(Regional Jet Series 700, 701 & 702), CL–600– 

2D15 (Regional Jet Series 705), and CL–600– 

2D24 (Regional Jet Series 900) airplanes, 

certificated in any category, as identified in 

Transport Canada AD CF–2023–79, dated 

December 21, 2023 (Transport Canada AD 

CF–2023–79), except for Group 3 and Group 

5 airplanes identified Transport Canada AD 

CF–2023–79. 

Note 1 to paragraph (c): Group 3 airplanes 

that are modified as specified in Service 

Bulletin 670BA–25–110 become Group 2 

airplanes as identified in Transport Canada 

AD CF–2023–79. 

Note 2 to paragraph (c): Group 5 airplanes 

that are modified as specified in Service 

Bulletin 670BA–25–057 become Group 4 

airplanes as identified in Transport Canada 

AD CF–2023–79. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/furnishings. 

(e) Unsafe Condition 

This AD was prompted by a report that the 

electrical harnesses in the overhead bin 

above the class divider may have insufficient 

or no separation with the class divider 

mounting plate. The FAA is issuing this AD 

to address possible chafing of the electrical 

harness with the class divider mounting 

plate. The unsafe condition, if not addressed, 

could result in the electrical harnesses 

becoming chafed, which could affect the 

following aircraft systems: ordinance signs, 


khammond on DSKJM1Z7X2PROD with RULES
Federal Register / Vol. 89, No. 181 / Wednesday, September 18, 2024 / Rules and Regulations 76401 

emergency lights/signs, passenger oxygen, 

and passenger address and air conditioning 

systems. 

(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, Transport Canada AD CF– 

2023–79. 

(h) Exception to Transport Canada AD CF– 

2023–79 

(1) Where Transport Canada AD CF–2023– 

79 refers to its effective date or August 7, 

2023 (the effective date of Transport Canada 

AD CF–2023–56, dated July 24, 2023), this 

AD requires using the effective date of this 

AD. 

(2) Where Transport Canada AD CF–2023– 

79 refers to hours air time, this AD requires 

using flight hours. 

(3) Where paragraph A. of Part I of 

Transport Canada AD CF–2023–79, specifies 

‘‘and, modify as required,’’ for this AD, 

replace that text with ‘‘and, before further 

flight, modify as required.’’ 

(4) Where any MHIRJ service information 

referenced in Transport Canada AD CF– 

2023–79 differs from any Safran service 

information referenced in Transport Canada 

AD CF–2023–79, the MHIRJ service 

information takes precedence over the Safran 

service information because the initial 

revision of the Safran service information 

does not list all affected part numbers. 

(i) 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 (j) of this AD. Information may be 

emailed to: 9-AVS-NYACO-COS@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. 

(j) Additional Information 

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. 

(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 service information 

as applicable to do the actions required by 

this AD, unless this AD specifies otherwise. 

(i) Transport Canada AD CF–2023–79, 

dated December 21, 2023. 

(ii) [Reserved] 

(3) For Transport Canada AD CF–2023–79, 

contact Transport Canada, Transport Canada 

National Aircraft Certification, 159 Cleopatra 

Drive, Nepean, Ontario K1A 0N5, Canada; 

telephone 888–663–3639; email 

TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca. You 

may find this Transport Canada AD on the 

Transport Canada website tc.canada.ca/en/ 

aviation. 

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

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th Street, 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 September 12, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–21176 Filed 9–17–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1473; Project 

Identifier MCAI–2024–00195–T; Amendment 

39–22817; AD 2024–16–11] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Dassault Aviation Model FALCON 7X 

airplanes. This AD was prompted by 

reports of excessive thickness of the 

trailing edge of certain ailerons, which 

may affect the assembly of the rear spar 

with the lower and upper skins. This 

AD requires a one-time ultrasonic or 

visual inspection of the aileron rear spar 

and trailing edge areas, and applicable 

corrective actions, 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 October 23, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 23, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1473; 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 Street, 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–2024–1473. 

FOR FURTHER INFORMATION CONTACT: Tom 

Rodriguez, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; telephone 206– 

231–3226; email Tom.Rodriguez@

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 on all Dassault Aviation Model 

FALCON 7X airplanes. The NPRM 

published in the Federal Register on 

May 23, 2024 (89 FR 45612). The NPRM 

was prompted by AD 2024–0076, dated 

March 19, 2024, issued by EASA, which 

is the Technical Agent for the Member 

States of the European Union (EASA AD 

2024–0076) (also referred to as the 

MCAI). The MCAI states that excessive 


khammond on DSKJM1Z7X2PROD with RULES