Federal Register / Vol. 89, No. 250 / Tuesday, December 31, 2024 / Proposed Rules 107069 

not addressed, could disperse lightning and 

electrostatic energy to the structure, creating 

a possible ignition source inside a fuel tank 

and subsequent fuel tank explosion. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Except as specified by paragraph (h) of this 

AD: At the applicable times specified in the 

‘‘Compliance’’ paragraph of Boeing Special 

Attention Requirements Bulletin 737–28– 

1376 RB, dated May 3, 2024, do all 

applicable actions identified in, and in 

accordance with, the Accomplishment 

Instructions of Boeing Special Attention 

Requirements Bulletin 737–28–1376 RB, 

dated May 3, 2024. 

Note 1 to paragraph (g): Guidance for 

accomplishing the actions required by this 

AD can be found in Boeing Special Attention 

Service Bulletin 737–28–1376, dated May 3, 

2024, which is referred to in Boeing Special 

Attention Requirements Bulletin 737–28– 

1376 RB, dated May 3, 2024. 

(h) Exceptions to Requirements Bulletin 

Specifications 

Where the Compliance Time columns of 

the tables in the ‘‘Compliance’’ paragraph of 

Boeing Special Attention Requirements 

Bulletin 737–28–1376 RB, dated May 3, 2024, 

refer to the original issue date of 

Requirements Bulletin 737–28–1376 RB, this 

AD requires using the effective date of this 

AD. 

(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 responsible Flight Standards 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)(1) of this AD. 

Information may be emailed to: AMOC@

faa.gov. 

(2) Before using any approved AMOC, 

notify your appropriate principal inspector, 

or lacking a principal inspector, the manager 

of the responsible Flight Standards 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 

(1) For more information about this AD, 

contact James Laubaugh, Aviation Safety 

Engineer, FAA, 2200 South 216th St., Des 

Moines, WA 98198; phone: 206–231–3622; 

email: james.laubaugh@faa.gov. 

(2) Material identified in this AD that is not 

incorporated by reference is available at the 

address specified in paragraph (k)(3) of this 

AD. 

(k) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 

the material listed in this paragraph under 5 

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

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless the AD specifies otherwise. 

(i) Boeing Special Attention Requirements 

Bulletin 737–28–1376 RB, dated May 3, 2024. 

(ii) [Reserved] 

(3) For the material identified in this AD, 

contact Boeing Commercial Airplanes, 

Attention: Contractual & Data Services 

(C&DS), 2600 Westminster Blvd., MC 110– 

SK57, Seal Beach, CA 90740–5600; telephone 

562–797–1717; website myboeingfleet.com. 

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

Airworthiness Products Section, Operational 

Safety Branch, 2200 South 216th St., Des 

Moines, WA. For information on the 

availability of this material at the FAA, call 

206–231–3195. 

(5) You may view this material at the 

National Archives and Records 

Administration (NARA). For information on 

the availability of this material at NARA, 

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

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

Issued on December 20, 2024. 

Suzanne Masterson, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–31348 Filed 12–30–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2717; Project 

Identifier MCAI–2024–00147–T] 

RIN 2120–AA64 

Airworthiness Directives; Bombardier, 

Inc., Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Notice of proposed rulemaking 

(NPRM). 

SUMMARY: The FAA proposes to 

supersede Airworthiness Directive (AD) 

2020–19–13, which applies to certain 

Bombardier, Inc., Model CL–600–1A11 

(600), CL–600–2A12 (601), and CL–600– 

2B16 (601–3A, 601–3R, and 604 

Variants) airplanes. AD 2020–19–13 

requires a check to identify the 

manufacturer and part number of the 

portable oxygen bottle installation, and 

if necessary, modification of the 

portable oxygen bottle installation. 

Since the FAA issued AD 2020–19–13, 

it was determined that four additional 

airplanes are subject to the unsafe 

condition. This proposed AD would 

continue to require the actions specified 

in AD 2020–19–13 and would expand 

the applicability. The FAA is proposing 

this AD to address the unsafe condition 

on these products. 

DATES: The FAA must receive comments 

on this proposed AD by February 14, 

2025. 

ADDRESSES: You may send comments, 

using the procedures found in 14 CFR 

11.43 and 11.45, by any of the following 

methods: 

• Federal eRulemaking Portal: Go to 

regulations.gov. Follow the instructions 

for submitting comments. 

• Fax: 202–493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

• Hand Delivery: Deliver to Mail 

address above between 9 a.m. and 5 

p.m., Monday through Friday, except 

Federal holidays. 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–2717; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this NPRM, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The street address for 

Docket Operations is listed above. 

Material Incorporated by Reference: 

• For Bombardier material identified 

in this proposed AD, 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 material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th St., Des Moines, WA. For 

information on the availability of this 

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

FOR FURTHER INFORMATION CONTACT: 

Brenda Buitrago, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 516–228–7300; email 9-avsnyaco-cos@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written relevant data, views, or 


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107070 Federal Register / Vol. 89, No. 250 / Tuesday, December 31, 2024 / Proposed Rules 

arguments about this proposal. Send 

your comments to an address listed 

under the ADDRESSES section. Include 

‘‘Docket No. FAA–2024–2717; Project 

Identifier MCAI–2024–00147–T’’ at the 

beginning of your comments. The most 

helpful comments reference a specific 

portion of the proposal, explain the 

reason for any recommended change, 

and include supporting data. The FAA 

will consider all comments received by 

the closing date and may amend the 

proposal because of those comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to 

regulations.gov, including any personal 

information you provide. The agency 

will also post a report summarizing each 

substantive verbal contact received 

about this NPRM. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

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

from public disclosure. If your 

comments responsive to this NPRM 

contain commercial or financial 

information that is customarily treated 

as private, that you actually treat as 

private, and that is relevant or 

responsive to this NPRM, it is important 

that you clearly designate the submitted 

comments as CBI. Please mark each 

page of your submission containing CBI 

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

marked submissions as confidential 

under the FOIA, and they will not be 

placed in the public docket of this 

NPRM. Submissions containing CBI 

should be sent to Brenda Buitrago, 

Aviation Safety Engineer, FAA, 1600 

Stewart Avenue, Suite 410, Westbury, 

NY 11590; telephone 516–228–7300; 

email 9-avs-nyaco-cos@faa.gov. Any 

commentary that the FAA receives 

which is not specifically designated as 

CBI will be placed in the public docket 

for this rulemaking. 

Background 

The FAA issued AD 2020–19–13, 

Amendment 39–21256 (85 FR 60887, 

dated September 29, 2020) (AD 2020– 

19–13), for certain Bombardier, Inc., 

Model CL–600–1A11 (600), CL–600– 

2A12 (601), and CL–600–2B16 (601–3A, 

601–3R, and 604 Variants) airplanes. AD 

2020–19–13 was prompted by MCAI 

originated by Transport Canada, which 

is the aviation authority for Canada. 

Transport Canada issued AD CF–2019– 

26, dated July 9, 2019 (Transport 

Canada AD CF–2019–26), to correct an 

unsafe condition. 

AD 2020–19–13 requires a check to 

identify the manufacturer and part 

number of the portable oxygen bottle 

installation, and, if necessary, 

modification of the portable oxygen 

bottle installation. The FAA issued AD 

2020–19–13 to address the portable 

oxygen bottle installation’s upper 

bracket latch assembly catching on the 

pressure gauge bezel of the portable 

oxygen bottle, which could prevent fast 

and easy access to the portable oxygen 

bottle in an emergency situation. 

Actions Since AD 2020–19–13 Was 

Issued 

Since the FAA issued AD 2020–19– 

13, Transport Canada superseded AD 

CF–2019–26, dated July 19, 2019, and 

issued Transport Canada AD CF–2024– 

09, dated March 14, 2024 (Transport 

Canada AD CF–2024–09) (referred to 

after this as the MCAI) to correct an 

unsafe condition on certain Bombardier, 

Inc., Model CL–600–1A11 (600), CL– 

600–2A12 (601), and CL–600–2B16 

(601–3A, 601–3R, and 604 Variants) 

airplanes. The MCAI states four Model 

CL–600–2B16 airplanes have been 

added to the applicability. 

This proposed AD would add 

airplanes to the applicability. The FAA 

is proposing this AD to address the 

portable oxygen bottle installation’s 

upper bracket latch assembly catching 

on the pressure gauge tube or on the 

pressure gauge bezel of the portable 

oxygen bottle, which, if not detected 

and corrected, could prevent fast and 

easy access to the portable oxygen bottle 

in an emergency situation. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2024–2717. 

Related Material Under 1 CFR Part 51 

The FAA reviewed the following 

material: 

• Bombardier Service Bulletin 600– 

0772, Revision 01, dated June 28, 2023; 

• Bombardier Service Bulletin 601– 

0646, Revision 01, dated June 28, 2023; 

• Bombardier Service Bulletin 604– 

35–006, Revision 01, dated June 28, 

2023; 

• Bombardier Service Bulletin 605– 

35–005, Revision 01, dated June 28, 

2023; and 

• Bombardier Service Bulletin 650– 

35–001, Revision 01, dated June 28, 

2023. 

This material specifies procedures for 

a check to identify the manufacturer and 

part number of the portable oxygen 

bottle installation, and, if necessary, 

modification of the portable oxygen 

bottle installation. These documents are 

distinct since they apply to different 

airplane models/configurations. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES section. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI and material referenced 

above. The FAA is issuing this NPRM 

after determining that the unsafe 

condition described previously is likely 

to exist or develop on other products of 

the same type design. 

Proposed AD Requirements in This 

NPRM 

This proposed AD would retain all 

requirements of AD 2020–19–13. This 

proposed AD would add airplanes to the 

applicability. This proposed AD would 

also require accomplishing the actions 

specified in the material described 

previously. 

Clarification of Compliance Time 

Paragraph (h) of AD 2020–19–13 does 

not include a compliance time for the 

modification. However, as specified in 

paragraph (g) of AD 2020–19–13 and 

this proposed AD, operators have 60 

months to determine if there is any 

affected part, and paragraph (h) of the 

proposed AD provides the on-condition 

action (modification) if an affected part 

is found. Therefore, the replacement in 

paragraph (h) of this AD, if applicable, 

must also be done within 60 months. 

Costs of Compliance 

The FAA estimates that this AD, if 

adopted as proposed, would affect 192 

airplanes of U.S. registry. 


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ESTIMATED COSTS FOR REQUIRED ACTIONS

Labor cost Parts cost Cost per 

product 

Cost on 

U.S. 

operators 

3 work-hours × $85 per hour = $255 ...................................................................................................... $1,530 $1,785 $342,720 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

The FAA determined that this 

proposed AD would not have federalism 

implications under Executive Order 

13132. This proposed AD would not 

have a substantial direct effect on the 

States, on the relationship between the 

national government and the States, or 

on the distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify this proposed regulation: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Would not affect intrastate 

aviation in Alaska, and 

(3) Would not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Proposed Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA proposes to amend 14 CFR part 

39 as follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by: 

■ a. Removing Airworthiness Directive 

(AD) 2020–19–13, Amendment 39– 

21256 (85 FR 60887, September 29, 

2020); and 

■ b. Adding the following new AD: 

Bombardier, Inc.: Docket No. FAA–2024– 

2717; Project Identifier MCAI–2024–00147– 

T. 

(a) Comments Due Date 

The FAA must receive comments on this 

airworthiness directive (AD) by February 14, 

2025. 

(b) Affected ADs 

This AD replaces AD 2020–19–13, 

Amendment 39–21256 (85 FR 60887, 

September 29, 2020) (AD 2020–19–13). 

(c) Applicability 

This AD applies to Bombardier, Inc., 

airplanes, identified in paragraphs (c)(1) 

through (3), certificated in any category, 

equipped with Scott (Avox/Zodiac) 5500 or 

5600 series 11 cubic foot portable oxygen 

bottle(s) with upper bracket part number (P/ 

N) 36758–02, P/N 36758–12 or P/N H3– 

2091–1 installed at the neck of the bottle(s). 

(1) Model CL–600–1A11 (600) airplanes, 

serial numbers 1004 through 1085 inclusive. 

(2) Model CL–600–2A12 (601) airplanes, 

serial numbers 3001 through 3066 inclusive. 

(3) Model CL–600–2B16 (601–3A, 601–3R, 

and 604 Variants) airplanes, serial numbers 

5001 through 5194 inclusive, 5301 through 

5665 inclusive, 5701 through 5988 inclusive, 

6050 through 6119 inclusive, 6158, 6161, 

6176, and 6181. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 35, Oxygen. 

(e) Unsafe Condition 

This AD was prompted by a report 

indicating that the portable oxygen bottle 

installation’s upper bracket latch assembly 

can catch on the pressure gauge tube or on 

the pressure gauge bezel of the portable 

oxygen bottle. This AD was also prompted by 

the determination that four additional Model 

CL–600–2B16 airplanes may be subject to the 

unsafe condition. The FAA is issuing this AD 

to address the unsafe condition, which, if not 

addressed, could prevent fast and easy access 

to the portable oxygen bottle in an emergency 

situation. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Check for Airplanes, With 

Revised Figure Reference and Revised 

Service Information 

This paragraph restates the requirements of 

paragraph (g) of AD 2020–19–13, with 

revised figure reference and revised service 

information. For airplanes with a serial 

number (S/N) listed in Section 1.A. of the 

applicable Bombardier service information 

specified in figure 1 to paragraph (g) of this 

AD, except airplane S/Ns 6158, 6161, 6176, 

and 6181: Within 60 months after November 

3, 2020 (the effective date of AD 2020–19– 

13), check each portable oxygen bottle 

installation to determine the manufacturer 

and P/N, in accordance with paragraph 2.B. 

of the Accomplishment Instructions of the 

applicable Bombardier service information 

specified in figure 1 to paragraph (g) of this 

AD. 

FIGURE 1 TO PARAGRAPH (g)—SERVICE INFORMATION REFERENCES

Airplane model Bombardier service information 

Model CL–600–1A11 ................................................................................ Bombardier Service Bulletin 600–0772, Revision 01, dated June 28, 

2023. 

Model CL–600–2A12 ................................................................................ Bombardier Service Bulletin 601–0646, Revision 01, dated June 28, 

2023. 

Model CL–600–2B16 ................................................................................ Bombardier Service Bulletin 601–0646, Revision 01, dated June 28, 

2023. 

Model CL–600–2B16 ................................................................................ Bombardier Service Bulletin 604–35–006, Revision 01, dated June 28, 

2023. 


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FIGURE 1 TO PARAGRAPH (g)—SERVICE INFORMATION REFERENCES—Continued 

Airplane model Bombardier service information 

Model CL–600–2B16 ................................................................................ Bombardier Service Bulletin 605–35–005, Revision 01, dated June 28, 

2023. 

Model CL–600–2B16 ................................................................................ Bombardier Service Bulletin 650–35–001, Revision 01, dated June 28, 

2023. 

(h) Retained Bracket Modification, With 

Specified Compliance Time 

This paragraph restates the requirements of 

paragraph (h) of AD 2020–19–13, with a 

specified compliance time. If, during the 

inspection specified in paragraph (g) of this 

AD, any portable oxygen bottle is found to be 

manufactured by Scott (Avox/Zodiac) and is 

a 5500 or 5600 series 11 cubic foot bottle, 

with upper bracket P/N 36758–02, 36758–12, 

or H3–2091–1 installed at the neck of the 

bottle: Within 60 months after November 3, 

2020 (the effective date of AD 2020–19–13), 

modify the portable oxygen bottle brackets in 

accordance with paragraph 2.C. of the 

Accomplishment Instructions of the 

applicable Bombardier service information 

specified in figure 1 to paragraph (g) of this 

AD. 

(i) Retained Check for Airplanes Not Listed 

in the Service Information, With Revised 

Figure Reference and Revised Service 

Information 

This paragraph restates the requirements of 

paragraph (i) of AD 2020–19–13, with a 

revised figure reference and revised service 

information. For airplanes with a serial 

number that is not listed in section 1.A. of 

the applicable Bombardier service 

information specified in figure 1 to paragraph 

(g) of this AD, within 60 months after 

November 3, 2020 (the effective date of AD 

2020–19–13), check each portable oxygen 

bottle installation to determine the 

manufacturer and part number and 

accomplish corrective actions in accordance 

with the procedures specified in paragraph 

(l)(1) of this AD. 

(j) New Check Requirement for Added 

Airplanes 

For airplane S/Ns 6158, 6161, 6176, and 

6181: Within 60 months after the effective 

date of this AD, check each portable oxygen 

bottle installation to determine the 

manufacturer and part number and 

accomplish corrective actions in accordance 

with the procedures specified in paragraph 

(l)(1) of this AD. 

(k) Credit for Previous Actions 

This paragraph provides credit for actions 

required by paragraphs (g) and (h) of this AD, 

if those actions were performed before the 

effective date of this AD using the applicable 

material specified in paragraphs (k)(1) 

through (5) of this AD. This material is not 

incorporated by reference in this AD. 

(1) Bombardier Service Bulletin 600–0772, 

dated June 29, 2018; 

(2) Bombardier Service Bulletin 601–0646, 

dated June 29, 2018; 

(3) Bombardier Service Bulletin 604–35– 

006, dated June 29, 2018; 

(4) Bombardier Service Bulletin 605–35– 

005, dated June 29, 2018; and 

(5) Bombardier Service Bulletin 650–35– 

001, dated June 29, 2018. 

(l) Additional AD Provisions 

(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 (m) 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, International Validation 

Branch, FAA; or Transport Canada; or 

Bombardier’s Transport Canada Design 

Approval Organization (DAO). If approved by 

the DAO, the approval must include the 

DAO-authorized signature. 

(m) Additional Information 

For more information about this AD, 

contact Brenda Buitrago, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 516– 

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

(n) 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 [DATE 35 DAYS AFTER 

PUBLICATION OF THE FINAL RULE]. 

(i) Bombardier Service Bulletin 600–0772, 

Revision 01, dated June 28, 2023. 

(ii) Bombardier Service Bulletin 601–0646, 

Revision 01, dated June 28, 2023. 

(iii) Bombardier Service Bulletin 604–35– 

006, Revision 01, dated June 28, 2023. 

(iv) Bombardier Service Bulletin 605–35– 

005, Revision 01, dated June 28, 2023. 

(v) Bombardier Service Bulletin 650–35– 

001, Revision 01, dated June 28, 2023. 

(4) For Bombardier material identified in 

this AD, contact Bombardier 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. 

(5) 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. 

(6) 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 23, 2024. 

Steven W. Thompson, 

Acting Deputy Director, Compliance & 

Airworthiness Division, Aircraft Certification 

Service. 

[FR Doc. 2024–31379 Filed 12–30–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF HOUSING AND 

URBAN DEVELOPMENT 

24 CFR Parts 4, 5, 75, 92, 93, 200, 570, 

574, 576, 578, 700, 880, 881, 883, 884, 

886, 905, 964, 965, 970, 990, 1000, 1003, 

1005, 1006, and 1007 

[Docket No. FR–6266–P–01] 

RIN 2501–AE01 

HUD’s Implementation of OMB’s 

Guidance for Federal Financial 

Assistance 

AGENCY: Office of General Counsel, 

HUD. 

ACTION: Proposed rule. 

SUMMARY: The U.S. Department of 

Housing and Urban Development (HUD) 

is proposing to amend its regulations on 

Federal financial assistance to conform 

with 2020 and 2024 changes to Office of 

Management and Budget (OMB) 

guidance governing Federal financial 

assistance (previously called grants and 

agreements). The proposed amendments 

would implement the guidance and 

update cross-references to OMB 

provisions that have been renumbered 

or reorganized. HUD is also proposing 

changes to improve some grant 

management and administrative 

program regulations based on HUD’s 

experience implementing OMB’s 


khammond on DSK9W7S144PROD with PROPOSALS