Federal Register / Vol. 89, No. 12 / Thursday, January 18, 2024 / Rules and Regulations 3339 

The FAA has received no definitive 

data on which to base the cost estimates 

for the corrective actions 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, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

Adoption of 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: 

2024–02–51 The Boeing Company: 

Amendment 39–22663; Docket No. 

FAA–2024–0032; Project Identifier AD– 

2024–00021–T. 

(a) Effective Date 

The FAA issued Emergency Airworthiness 

Directive (AD) 2024–02–51 on January 6, 

2024, directly to affected owners and 

operators. As a result of such actual notice, 

the emergency AD was effective for those 

owners and operators on the date it was 

provided. This AD contains the same 

requirements as that emergency AD and, for 

those who did not receive actual notice, is 

effective on January 18, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to The Boeing Company 

Model 737–9 airplanes, certificated in any 

category, with a mid cabin door plug 

installed. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 52, Doors. 

(e) Unsafe Condition 

This AD was prompted by a report of an 

in-flight departure of a mid cabin door plug, 

which resulted in a rapid decompression of 

the airplane. The FAA is issuing this AD to 

address the potential in-flight loss of a mid 

cabin door plug, which could result in injury 

to passengers and crew, the door impacting 

the airplane, and/or loss of control of the 

airplane. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Inspection or Other Action 

As of the effective date of this AD, further 

flight is prohibited until the airplane is 

inspected and all applicable corrective 

actions have been performed using a method 

approved by the Manager, AIR–520, 

Continued Operational Safety Branch, FAA. 

(h) Special Flight Permits 

Special flight permits, as described in 14 

CFR 21.197 and 21.199, are allowed only for 

unpressurized flights. 

(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 certification office, 

send it to the attention of the person 

identified in paragraph (j) of this AD. 

Information may be emailed to: 9-ANMSeattle-ACO-AMOC-Requests@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. 

(3) An AMOC that provides an acceptable 

level of safety may be used for any repair, 

modification, or alteration required by this 

AD if it is approved by The Boeing Company 

Organization Designation Authorization 

(ODA) that has been authorized by the 

Manager, AIR–520, Continued Operational 

Safety Branch, FAA, to make those findings. 

To be approved, the repair method, 

modification deviation, or alteration 

deviation must meet the certification basis of 

the airplane, and the approval must 

specifically refer to this AD. 

(j) Related Information 

For further information about this AD, 

contact Michael Linegang, Manager, 

Operational Safety Branch, FAA; phone: 

817–222–5390; email: OperationalSafety@

faa.gov. 

(k) Material Incorporated by Reference 

None. 

Issued on January 12, 2024. 

Caitlin Locke, 

Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–00993 Filed 1–16–24; 2:00 pm] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1715; Project 

Identifier MCAI–2023–00548–T; Amendment 

39–22640; AD 2023–25–13] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

Editorial Note: Rule document 2023–28849 

originally published on pages 256–258 in the 

issue of Wednesday, January 3, 2024. In that 

publication, on page 256, in the second 

column, in the DATES section, on the first, 

second, and sixth lines, and on page 257, in 

the third column, in paragraph ‘‘(a) Effective 

Date,’’ on the second line, ‘‘February 7, 2023’’ 

should read ‘‘February 7, 2024’’. The rule is 

republished here corrected and in its 

entirety. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for certain 

Bombardier, Inc., Model CL–600–2B16 

(604 Variant) airplanes. This AD was 

prompted by a report that some 

airplanes were delivered without a 

portable protective breathing equipment 

(PBE) device located in the left-side 

forward wardrobe, flight deck, or 

passenger cabin area of the airplane. 


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3340 Federal Register / Vol. 89, No. 12 / Thursday, January 18, 2024 / Rules and Regulations 

This AD requires visually inspecting the 

forward left side cabin area of the 

airplane to determine if the portable 

PBE device is installed and, if not 

installed, requires installing the portable 

PBE device along with the associated 

placard. The FAA is issuing this AD to 

address the unsafe condition on these 

products. 

DATES: This AD is effective February 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 7, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1715; 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 service information identified 

in this final rule, contact Bombardier 

Business Aircraft Customer Response 

Center, 400 Coˆte Vertu Road West, 

Dorval, Que ́bec H4S 1Y9, Canada; 

telephone 514 855 2999; email: ac.yul@

aero.bombardier.com; website: 

bombardier.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– 

2023–1715. 

FOR FURTHER INFORMATION CONTACT: 

Gabriel Kim, 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 Bombardier, Inc., Model 

CL–600–2B16 (604 Variant) airplanes. 

The NPRM published in the Federal 

Register on August 24, 2023 (88 FR 

57902). The NPRM was prompted by 

AD CF–2023–21, dated March 30, 2023, 

issued by Transport Canada, which is 

the aviation authority for Canada, 

(referred to after this as the MCAI). The 

MCAI states that some airplanes were 

delivered without a portable PBE device 

located in the left-side forward 

wardrobe, or cockpit, or passenger cabin 

area of the airplane. The portable PBE 

device is required to meet the 

certification standards of Transport 

Canada and the FAA and provides 

protection for crew members when 

investigating or combatting a fire in the 

cabin. In the NPRM, the FAA proposed 

to require visually inspecting the 

forward left side cabin area of the 

airplane to determine if the portable 

PBE device is installed and, if not 

installed, would require installing the 

portable PBE device along with the 

associated placard. 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–2023–1715. 

Discussion of Final Airworthiness 

Directive 

Comments 

The following presents the comments 

received on the NPRM and the FAA’s 

response to each comment. 

Request To Add PBE Device Locations 

Bombardier requested that the 

proposed AD be revised to clarify the 

locations of the portable PBE devices. 

Bombardier stated that these locations 

were specified in Transport Canada AD 

CF–2023–21 and Bombardier Service 

Bulletin 604–35–008, Revision 02, dated 

January 13, 2023. 

The FAA agrees to add the specified 

locations and has revised the relevant 

sections in this AD accordingly. 

Request To Clarify Required Service 

Bulletin Paragraphs 

Bombardier requested that paragraph 

(g) of the proposed AD be revised to 

change the paragraph reference for 

verifying installation of the PBE device 

and placard from ‘‘Section 2.B.’’ of the 

service information to ‘‘Section 2.B.1.’’ 

The FAA agrees to change the 

paragraph reference as requested and 

has revised paragraph (g) of this AD 

accordingly. Likewise, where paragraph 

(g) of the proposed AD specified 

installing those parts in accordance with 

‘‘section 2.B.’’ of the service 

information, this has been changed to 

‘‘paragraph 2.B.(2)’’ in this AD. 

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 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 this product. 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. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed Bombardier 

Service Bulletin 604–35–008, Revision 

02, dated January 13, 2023. This service 

information specifies procedures for 

performing a general visual inspection 

of the left-side forward wardrobe, or 

flight deck, or passenger cabin area of 

the airplane for a portable PBE device 

and, if missing, installing a portable PBE 

device and its associated placard. 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 139 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 

0.5 work-hour × $85 per hour = $43 ........................................................................................... $0 $43 $5,977 


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Federal Register / Vol. 89, No. 12 / Thursday, January 18, 2024 / Rules and Regulations 3341 

The FAA estimates the following 

costs to do any necessary on-condition 

action 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 this 

on-condition action: 

ESTIMATED COSTS OF ON-CONDITION ACTIONS

Labor cost Parts cost Cost per 

product 

2 work-hours × $85 per hour = $170 ...................................................................................................................... $2,157 $2,327 

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: 

2023–25–13 Bombardier, Inc.: Amendment 

39–22640; Docket No. FAA–2023–1715; 

Project Identifier MCAI–2023–00548–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective February 7, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Bombardier, Inc., 

Model CL–600–2B16 (604 Variant) airplanes, 

certificated in any category, with serial 

numbers as identified in the Bombardier 

Service Bulletin 604–35–008, Revision 02, 

dated January 13, 2023. 

(d) Subject 

Air Transport Association (ATA) of 

America Code: 35, Oxygen. 

(e) Unsafe Condition 

This AD was prompted by a report that 

some airplanes were delivered without a 

portable protective breathing equipment 

(PBE) device located in the left-side forward 

wardrobe, flight deck, or passenger cabin area 

of the airplane. The FAA is issuing this AD 

to address a missing portable PBE device. 

The unsafe condition, if not addressed, could 

result in inadequate protection for crew 

members when investigating or combatting a 

fire in the cabin. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Visual Inspection for Portable PBE 

Within 12 months from the effective date 

of this AD, do a general visual inspection of 

the left-side forward wardrobe, flight deck, or 

passenger cabin area of the airplane and 

verify if a portable PBE device, marked with 

Technical Standard Order (TSO) C116 or 

C116a, is installed and placarded, in 

accordance with paragraph 2.B.(1) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 604–35–008, Revision 02, 

dated January 13, 2023. If the PBE device is 

missing, before further flight, install a 

portable PBE device marked with TSO C116 

or TSO C116a and its associated placard, in 

accordance with paragraph 2.B.(2) of the 

Accomplishment Instructions of Bombardier 

Service Bulletin 604–35–008, Revision 02, 

dated January 13, 2023. 

(h) 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, International Validation 

Branch, mail it to the address identified in 

paragraph (i)(2) of this AD or email to: 9- 

AVS-AIR-730-AMOC@faa.gov. If mailing 

information, also submit information by 

email. 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 

Bombardier, Inc.’s Transport Canada Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(i) Additional Information 

(1) Refer to Transport Canada AD CF– 

2023–21, dated March 30, 2023, for related 

information. This Transport Canada AD may 

be found in the AD docket at regulations.gov 

under Docket No. FAA–2023–1715. 

(2) For more information about this AD, 

contact Gabriel Kim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 516– 

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

(j) 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 this AD specifies otherwise. 


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3342 Federal Register / Vol. 89, No. 12 / Thursday, January 18, 2024 / Rules and Regulations 

(i) Bombardier Service Bulletin 604–35–

008, Revision 02, dated January 13, 2023. 

(ii) [Reserved]

(3) For service information identified in

this AD, contact Bombardier, Inc., Business 

Aircraft Customer Response Center, 400 CoˆteVertu Road West, Dorval, Que ́bec H4S 1Y9, 

Canada; telephone 514–855–2999; email: 

ac.yul@aero.bombardier.com; website: 

bombardier.com. 

(4) You may view this service information

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-locationsoremailfr.inspection@nara.gov. 

Issued on December 14, 2023. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. R1–2023–28849 Filed 1–17–24; 8:45 am] 

BILLING CODE 0099–10–D 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2023–1502; Project 

Identifier MCAI–2023–00380–T; Amendment 

39–22634; AD 2023–25–07] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

Editorial Note: Rule document 2023–28853 

originally published on pages 244–246 in the 

issue of Wednesday, January 3, 2024. In that 

publication, on page 244, in the second 

column, in the DATES section, on the first, 

second, and sixth lines, on page 245, in the 

third column, in paragraph ‘‘(a) Effective 

Date,’’ on the second line, and on page 246, 

in the second column, in paragraph ‘‘(p) 

Material Incorporated by Reference,’’ in sub 

paragraph ‘‘(3),’’ ‘‘February 7, 2023’’ should 

read ‘‘February 7, 2024’’. The rule is 

republished here corrected and in its 

entirety. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2023–04– 

10, which applied to all Dassault 

Aviation Model MYSTERE–FALCON 

900 airplanes. AD 2023–04–10 required 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. This AD was 

prompted by a determination that new 

or more restrictive airworthiness 

limitations are necessary. This AD 

continues to require the actions in AD 

2023–04–10, and 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 7, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of February 7, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of May 12, 2023 (88 FR 

20743, April 7, 2023). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2023–1502; 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 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– 

2023–1502. 

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 to supersede AD 2023–04–10, 

Amendment 39–22357 (88 FR 20743, 

April 7, 2023) (AD 2023–04–10). AD 

2023–04–10 applied to all Dassault 

Aviation Model MYSTERE-FALCON 

900 airplanes. AD 2023–04–10 required 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. The FAA 

issued AD 2023–04–10 to address 

reduced structural integrity of the 

airplane. AD 2023–04–10 specifies that 

accomplishing the revision required by 

that AD terminates the requirements of 

paragraph (g)(1) of AD 2010–26–05, 

Amendment 39–16544 (75 FR 79952, 

December 21, 2010) (AD 2010–26–05) 

for Dassault Aviation Model MYSTEREFALCON 900 airplanes only. This AD 

therefore continues to allow that 

terminating action. 

The NPRM published in the Federal 

Register on July 21, 2023 (88 FR 47086); 

corrected August 14, 2023 (88 FR 

54933). The NPRM was prompted by 

AD 2023–0046, dated March 2, 2023, 

issued by EASA, which is the Technical 

Agent for the Member States of the 

European Union (EASA AD 2023–0046) 

(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 

continue to require the actions in AD 

2023–04–10 and to require revising the 

existing maintenance or inspection 

program, as specified in EASA AD 

2023–0046. The FAA is issuing this AD 

to address reduced structural integrity 

of the airplane. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2023–1502. 

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 


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