Federal Register / Vol. 89, No. 207 / Friday, October 25, 2024 / Rules and Regulations 85037 

rights impact is likely to result from this 

final rule. 

Assistance Listing 

The programs affected by this 

regulation is listed in the Assistance 

Listing Catalog (formerly Catalog of 

Federal Domestic Assistance) under 

number 10.405—Farm Labor Housing 

Loans and Grants. The Assistance 

Listings are available at https://sam.gov/. 

Non-Discrimination Statement Policy 

In accordance with Federal civil 

rights laws and USDA civil rights 

regulations and policies, the USDA, its 

Mission Areas, agencies, staff offices, 

employees, and institutions 

participating in or administering USDA 

programs are prohibited from 

discriminating based on race, color, 

national origin, religion, sex, gender 

identity (including gender expression), 

sexual orientation, disability, age, 

marital status, family/parental status, 

income derived from a public assistance 

program, political beliefs, or reprisal or 

retaliation for prior civil rights activity, 

in any program or activity conducted or 

funded by USDA (not all bases apply to 

all programs). Remedies and complaint 

filing deadlines vary by program or 

incident. 

Program information may be made 

available in languages other than 

English. Persons with disabilities who 

require alternative means of 

communication to obtain program 

information (e.g., Braille, large print, 

audiotape, American Sign Language) 

should contact the responsible Mission 

Area, agency, staff office, or the 711 

Federal Relay Service. 

To file a program discrimination 

complaint, a complainant should 

complete a Form AD–3027, USDA 

Program Discrimination Complaint 

Form, which can be obtained online at 

https://www.usda.gov/sites/default/ 

files/documents/ad-3027.pdf, from any 

USDA office, by calling (866) 632–9992, 

or by writing a letter addressed to 

USDA. The letter must contain the 

complainant’s name, address, telephone 

number, and a written description of the 

alleged discriminatory action in 

sufficient detail to inform the Assistant 

Secretary for Civil Rights about the 

nature and date of an alleged civil rights 

violation. 

The completed AD–3027 form or 

letter must be submitted to USDA by: 

(1) Mail: U.S. Department of 

Agriculture, Office of the Assistant 

Secretary for Civil Rights, 1400 

Independence Avenue SW, Washington, 

DC 20250–9410; or 

(2) Fax: (833) 256–1665 or (202) 690– 

7442; or 

(3) Email: program.intake@usda.gov. 

USDA is an equal opportunity 

provider, employer, and lender. 

Severability 

It is USDA’s intention that the 

provisions of this final rule shall operate 

independently of each other. In the 

event that this final rule or any portion 

of this final rule is ultimately declared 

invalid or stayed as to a particular 

provision, it is USDA’s intent that the 

final rule nonetheless be severable and 

remain valid with respect to those 

provisions not affected by a declaration 

of invalidity or stayed. USDA concludes 

it would separately adopt all of the 

provisions contained in this final rule. 

List of Subjects in 7 CFR Part 3560 

Accounting, Administrative practice 

and procedure, Aged, Conflict of 

interest, Government property 

management, Grant programs—housing 

and community development, 

Insurance, Loan programs—agriculture, 

Loan programs—housing and 

community development, Low and 

moderate-income housing, Migrant 

labor, Mortgages, Nonprofit 

organizations, Public-housing, Rentsubsidies, Reporting and recordkeeping 

requirements, Rural areas. 

For the reasons set forth in the 

preamble, the Rural Housing Service is 

amending 7 CFR part 3560 as follows: 

PART 3560—DIRECT MULTI-FAMILY 

HOUSING LOANS AND GRANTS 

■ 1. The authority citation for part 3560 

continues to read as follows: 

Authority: 42 U.S.C. 1480. 

Subpart L—Off-Farm Labor Housing 

■ 2. Amend § 3560.566 by revising 

paragraph (c) and adding paragraph (d) 

to read as follows: 

§ 3560.566 Loan and grant rates and 

terms. 

* * * * * 

(c) Term of grant agreement. The 

grant agreement will remain in effect for 

as long as there is a need for the 

housing, as determined by the Agency. 

(d) Grant period of performance. The 

grant period of performance is five (5) 

years, which starts on the date the grant 

agreement is executed by both the 

Agency and the grantee and ends five 

(5) years from the date the grant 

agreement was executed by both the 

Agency and the grantee. 

Yvonne Hsu, 

Acting Administrator, Rural Housing Service. 

[FR Doc. 2024–24742 Filed 10–24–24; 8:45 am] 

BILLING CODE 3410–XV–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1696; Project 

Identifier MCAI–2023–01234–A; Amendment 

39–22850; AD 2024–19–08] 

RIN 2120–AA64 

Airworthiness Directives; Diamond 

Aircraft Industries Inc. (Type 

Certificate Previously Held by Diamond 

Aircraft Industries GmbH) Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2009–10– 

04 for certain Diamond Aircraft 

Industries GmbH (type certificate now 

held by Diamond Aircraft Industries 

Inc.) Model DA 40 and DA 40 F 

airplanes. AD 2009–10–04 required 

repetitively inspecting the nose landing 

gear (NLG) leg for cracks and replacing 

the NLG leg if cracks are found. Since 

the FAA issued AD 2009–10–04, 

Transport Canada updated mandatory 

continuing airworthiness information 

(MCAI) to correct this unsafe condition 

on these products. This AD results from 

changes made to the part replacement 

options and the repetitive inspections. 

This AD requires doing repetitive 

detailed inspections of the NLG leg 

pivot axle for cracking and if cracking 

is found replacing that part with a 

serviceable part. This AD also requires 

eventually replacing all NLG legs having 

certain part numbers with serviceable 

parts, if not already done, and prohibits 

installing affected parts. Replacing 

affected parts with serviceable parts is 

terminating action for the repetitive 

inspections specified in this AD. The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective November 

29, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of November 29, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1696; 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 MCAI, any 

comments received, and other 

information. The address for Docket 

Operations is U.S. Department of 

Transportation, Docket Operations, M– 


ddrumheller on DSK120RN23PROD with RULES1
85038 Federal Register / Vol. 89, No. 207 / Friday, October 25, 2024 / Rules and Regulations 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

Material Incorporated by Reference: 

• For Diamond Aircraft Industries 

Inc. material identified in this AD, 

contact Diamond Aircraft Industries 

Inc., 1560 Crumlin Sideroad, London, 

ON, Canada, N5V 1S2; phone: (519) 

457–4041; email: support-canada@

diamondaircraft.com; website: 

diamondaircraft.com. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 901 Locust, 

Kansas City, MO 64106. For information 

on the availability of this material at the 

FAA, call (817) 222–5110. It is also 

available at regulations.gov under 

Docket No. FAA–2024–1696. 

FOR FURTHER INFORMATION CONTACT: 

Gabriel Kim, Aviation Safety Engineer, 

FAA, 1600 Stewart Avenue, Suite 410, 

Westbury, NY 11590; phone: (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 to supersede AD 2009–10–04, 

Amendment 39–15899 (74 FR 22435, 

May 13, 2009) (AD 2009–10–04). AD 

2009–10–04 applied to certain Diamond 

Aircraft Industries GmbH (type 

certificate now held by Diamond 

Aircraft Industries Inc.) Model DA 40 

and DA 40 F airplanes. AD 2009–10–04 

was prompted by MCAI originated by 

the European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Union. EASA issued AD 

2009–0016, dated January 22, 2009 

(EASA AD 2009–0016), to address 

fatigue cracking of the NLG leg part 

number (P/N) D41–3223–10–00 at the 

pivot axle. 

AD 2009–10–04 superseded and 

maintained the requirements of AD 

2007–17–06, Amendment 39–15164 (72 

FR 46549, August 21, 2007), which 

required repetitively inspecting the NLG 

leg for cracks and replacing the NLG leg 

if cracks were found. The FAA issued 

AD 2009–10–04 to exclude from the 

applicability any airplanes that had the 

improved NLG leg installed. 

Effective November 15, 2017, the 

design and oversight responsibilities for 

the Model DA 40, DA 40 F, and DA 40 

D airplanes were transferred from 

Diamond Aircraft Industries GmbH of 

Austria as the design approval holder, 

and EASA as the civil aviation 

authority, to Diamond Aircraft 

Industries Inc. (Diamond), of Canada as 

the new design approval holder, and 

Transport Canada as the civil aviation 

authority. After that transition, 

Transport Canada received several inservice reports of P/N D41–3223–10–00_

1 cracking at the pivot axle and in some 

cases, fracture of the NLG leg. 

Investigation revealed that the failures 

were the result of fatigue cracking. 

Since the FAA issued AD 2009–10– 

04, Transport Canada superseded EASA 

AD 2009–0016 and issued Transport 

Canada AD CF–2023–50, dated July 10, 

2023 (Transport Canada AD CF–2023– 

50), to address failure of the NLG leg at 

the pivot axle by requiring initial and 

repetitive detailed inspections of NLG 

leg P/N D41–3223–10–00 and P/N D41– 

3223–10–00_1 to detect cracking, 

replacing a NLG leg, as required, with 

a serviceable part, and prohibiting the 

installation of NLG leg P/N D41–3223– 

10–00 or P/N D41–3223–10–00_1 as a 

replacement part. 

Transport Canada AD CF–2023–50 

differed from the Diamond material 

because Transport Canada AD CF– 

2023–50 required a detailed inspection 

of the pivot axle of the NLG leg P/N 

D41–3223–10–00 and P/N D41–3223– 

10–00_1 using a bright light and 10X 

magnifying glass instead of Type II 

visible dye for the inspection of the 

pivot axle. After Transport Canada AD 

CF–2023–50 was issued, the repetitive 

inspection interval was increased from 

100 hours air time to 110 hours air time 

to align with the scheduled 100-hour 

inspection in chapter 5 of the DA 40 

series Airplane Maintenance Manual. 

To require the change to Transport 

Canada AD CF–2023–50, Transport 

Canada issued AD CF–2023–50R1, 

dated November 29, 2023 (also referred 

to as the MCAI). The MCAI was 

published to address the time interval 

change of the repetitive inspection from 

100-hour intervals to 110-hour intervals. 

The NPRM published in the Federal 

Register on July 5, 2024 (89 FR 55525). 

The NPRM was prompted by failure of 

a NLG in the area of the pivot axle and 

changes made to the part replacement 

options and the repetitive inspections as 

detailed in the MCAI. The MCAI was 

published to address the time interval 

change of the repetitive inspection from 

100-hour intervals to 110-hour intervals 

to align with the scheduled 100-hour 

inspection in chapter 5 of the DA 40 

series Airplane Maintenance Manual. 

In the NPRM, the FAA proposed to 

require repetitive detailed inspections of 

the NLG leg pivot axle for cracking and 

if cracking was found replacing that part 

with a serviceable part. In the NPRM, 

the FAA also proposed to require 

eventually replacing all NLG legs having 

certain part numbers with serviceable 

parts, if not already done, and prohibit 

installing affected parts. Replacing 

affected parts with serviceable parts is 

terminating action for the repetitive 

inspections required by this AD. 

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–2024–1696. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the costs. 

Conclusion 

These products have been approved 

by the aviation authority of another 

country and are 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 these 

products. This AD is adopted as 

proposed in the NPRM. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

The FAA reviewed Diamond 

Mandatory Service Bulletin MSB 40– 

091, Rev. 0, dated January 18, 2021, 

published with Diamond Aircraft 

Industries Work Instruction WI–MSB 

40–091, Rev. 0, dated January 18, 2021 

(issued as one document). This material 

specifies procedures for doing repetitive 

dye penetrant inspections of the NLG 

leg pivot axle for cracking and replacing 

the NLG for Model DA 40 airplanes. 

The FAA also reviewed Diamond 

Mandatory Service Bulletin MSB F4– 

038, Rev. 0, dated January 18, 2021, 

published with Diamond Aircraft 

Industries Work Instruction WI–MSB 

F4–038, Rev. 0, dated January 18, 2021 

(issued as one document). This material 

specifies procedures for doing repetitive 

dye penetrant detailed inspections of 

the NLG leg pivot axle for cracking and 

replacing the NLG for Model DA 40 F 

airplanes. 

This material is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in ADDRESSES. 

Differences Between This AD, the 

MCAI, and the Material 

The MCAI applies to Model DA 40 D 

airplanes, however, this AD does not 


ddrumheller on DSK120RN23PROD with RULES1
Federal Register / Vol. 89, No. 207 / Friday, October 25, 2024 / Rules and Regulations 85039 

because that model does not have an 

FAA type certificate. 

Although the Diamond material 

specifies to do dye penetrant 

inspections, the MCAI requires, and this 

AD requires, using a bright light 

(minimum of 100 foot-candles) and 10X 

magnifying glass instead of dye 

penetrant. 

Costs of Compliance 

The FAA estimates that this AD 

affects 693 airplanes of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per airplane Cost on U.S. operators 

Inspect NLG leg pivot axle ................ 1 work-hour × $85 per 

hour = $85 per inspection cycle.

$50 per inspection cycle $135 per inspection 

cycle.

Up to $93,555 per inspection cycle. 

Replace NLG leg ............................... 2 work-hours × $85 per 

hour = $170.

$3,900 ........................... $4,070 ........................... Up to $2,820,510. 

The costs of the inspection and 

replacement of the NLG leg are based on 

all airplanes having an affected NLG 

installed. The FAA has no way of 

determining the number of airplanes 

that have the affected NLG installed, 

and those that do not have one installed 

are only affected by the installation 

prohibition. 

The FAA has included all known 

costs in its cost estimate. According to 

the manufacturer, however, some of the 

costs of this AD may be covered under 

warranty, thereby reducing the cost 

impact on affected operators. 

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 has determined that 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: 

■ a. Removing Airworthiness Directive 

2009–10–04, Amendment 39–15899 (74 

FR 22435, May 13, 2009); and 

■ b. Adding the following new 

airworthiness directive: 

2024–19–08 Diamond Aircraft Industries 

Inc. (Type Certificate Previously Held by 

Diamond Aircraft Industries GmbH): 

Amendment 39–22850; Docket No. 

FAA–2024–1696; Project Identifier 

MCAI–2023–01234–A. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective November 29, 2024. 

(b) Affected ADs 

This AD replaces AD 2009–10–04, 

Amendment 39–15899 (74 FR 22435, May 13, 

2009) (AD 2009–10–04). 

(c) Applicability 

This AD applies to Diamond Aircraft 

Industries Inc. (type certificate previously 

held by Diamond Aircraft Industries GmbH) 

Model DA 40 and DA 40F airplanes, all serial 

numbers, certificated in any category. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 3220, Nose/Tail Landing Gear. 

(e) Unsafe Condition 

This AD was prompted by failure of a nose 

landing gear (NLG) in the area of the pivot 

axle. The unsafe condition, if not addressed, 

could lead to damage to the airplane and 

injury to occupants. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Definitions 

For the purpose of this AD the definitions 

in paragraphs (g)(1) through (3) of this AD 

apply: 

(1) An ‘‘affected part’’ is an NLG leg having 

either P/N D41–3223–10–00 or P/N D41– 

3223–10–00_1. 

(2) A ‘‘serviceable part’’ is an NLG leg that 

is not an affected part. NLG legs having P/ 

N D41–3223–10–00_2 or P/N D41–3223–10– 

00_3 are considered serviceable parts. 

(3) The ‘‘applicable mandatory service 

bulletin (MSB) for your airplane’’ is: 

(i) For Model DA 40 airplanes: Diamond 

Aircraft Industries Mandatory Service 

Bulletin MSB 40–091, Rev. 0, dated January 

18, 2021, published with Diamond Aircraft 

Industries Work Instruction WI–MSB 40–091, 

Rev. 0, dated January 18, 2021 (issued as one 

document). 

(ii) For Model DA 40 F airplanes: Diamond 

Aircraft Industries Mandatory Service 

Bulletin MSB F4–038, Rev. 0, dated January 

18, 2021, published with Diamond Aircraft 

Industries Work Instruction WI–MSB F4– 

038, Rev. 0, dated January 18, 2021 (issued 

as one document). 

(h) Required Actions 

For all airplanes with an affected part 

installed, do the applicable actions specified 

in paragraphs (h)(1) and (2) of this AD. 

(1) Within 25 hours time-in-service (TIS) or 

30 days after the effective date of this AD, 

whichever occurs first, and thereafter at 


ddrumheller on DSK120RN23PROD with RULES1
85040 Federal Register / Vol. 89, No. 207 / Friday, October 25, 2024 / Rules and Regulations 

intervals not to exceed 110 hours TIS, 

perform the actions required by paragraphs 

(h)(1)(i) through (v) of this AD: 

(i) Prepare the airplane for inspection of 

the pivot axle of the affected part in 

accordance with Section III, Paragraphs 1 

through 4, of the Work Instruction of the 

applicable MSB for your airplane. 

(ii) Clean the pivot axle of the affected part 

ensuring that any visible dye inspection 

residue is removed. 

Note 1 to paragraph (h)(1)(ii): Paragraph 5– 

63, Cleaners and Applicators, of Chapter 5, 

Nondestructive Inspection (NDI), Section 5, 

Penetrant Inspection, of FAA Advisory 

Circular 43.13–1B, ‘‘Acceptable Methods, 

Techniques, and Practices—Aircraft 

Inspection and Repair,’’ Change 1, dated 

September 8, 1998, provides guidance 

regarding an approved cleaning method. 

(iii) Perform a detailed inspection of the 

pivot axle of the affected part using a bright 

light (minimum of 100 foot-candles) and 10X 

magnifying glass to detect cracking, paying 

special attention to the radius at the top of 

the pivot axle as shown in Figure 1 of the 

Work Instruction of the applicable MSB for 

your airplane, except where Figure 1 refers 

to a ‘‘dye penetrant inspection’’ this AD does 

not require that type of inspection. 

(iv) If any cracking is found during any 

inspection required by paragraph (h)(1)(iii) of 

this AD, before further flight, replace the 

affected part with a serviceable part, and 

reinstall the nose wheel fork in accordance 

with Section III, Paragraphs 8 through 12 of 

the Work Instruction of the applicable MSB 

for your airplane. 

(v) If no cracking is found during any 

inspection required by paragraph (h)(1)(iii) of 

this AD and the compliance time specified in 

paragraph (h)(2) of this AD has not been 

exceeded, the affected part can remain 

installed until the compliance time specified 

in paragraph (h)(2) of this AD is reached. 

Reinstall the nose wheel fork in accordance 

with Section III, Paragraphs 8 through 12, of 

the Work Instruction of the applicable MSB 

for your airplane. 

(2) Within 2,500 hours TIS or 24 months 

after the effective date of this AD, whichever 

occurs first, replace an affected part with a 

serviceable part. This part replacement is 

terminating action for the repetitive 

inspections required by paragraph (h)(1) of 

this AD. 

(i) Parts Installation Prohibition 

As of the effective date of this AD, do not 

install an affected part on any airplane. 

(j) 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 local 

Flight Standards District Office, as 

appropriate. If sending information directly 

to the manager of the International Validation 

Branch, mail it to the address identified in 

paragraph (k)(1) of this AD or email to: 

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 local Flight 

Standards District Office/certificate holding 

district office. 

(k) Additional Information 

(1) For more information about this AD, 

contact Gabriel Kim, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: (516) 228– 

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

(2) FAA Advisory Circular 43.13–1B, 

‘‘Acceptable Methods, Techniques, and 

Practices—Aircraft Inspection and Repair,’’ 

Change 1, dated September 8, 1998, may be 

found at drs.faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference 

(IBR) of the material listed in this paragraph 

under 5 U.S.C. 552(a) and 1 CFR part 51. 

(2) You must use this material as 

applicable to do the actions required by this 

AD, unless the AD specifies otherwise. 

(i) Diamond Aircraft Industries Mandatory 

Service Bulletin MSB 40–091, Rev. 0, dated 

January 18, 2021, published with Diamond 

Aircraft Industries Work Instruction WI–MSB 

40–091, Rev. 0, dated January 18, 2021 

(issued as one document). 

(ii) Diamond Aircraft Industries Mandatory 

Service Bulletin MSB F4–038, Rev.0, dated 

January 18, 2021, published with Diamond 

Aircraft Industries Work Instruction WI–MSB 

F4–038, Rev. 0, dated January 18, 2021 

(issued as one document). 

(3) For Diamond Aircraft Industries 

material identified in this AD, contact 

Diamond Aircraft Industries Inc., 1560 

Crumlin Sideroad, London, ON, Canada, N5V 

1S2; phone: (519) 457–4041; email: supportcanada@diamondaircraft.com; website: 

diamondaircraft.com. 

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

Airworthiness Products Section, Operational 

Safety Branch, 901 Locust, Kansas City, MO 

64106. For information on the availability of 

this material at the FAA, call (817) 222–5110. 

(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 October 21, 2024. 

Steven W. Thompson, 

Acting Deputy Director, Compliance & 

Airworthiness Division, Aircraft Certification 

Service. 

[FR Doc. 2024–24758 Filed 10–24–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–2328; Project 

Identifier AD–2024–00282–Q,R; Amendment 

39–22863; AD 2024–20–04] 

RIN 2120–AA64 

Airworthiness Directives; Various 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2024–01– 

11, which applied to all helicopters 

with certain Pacific Scientific Company 

rotary buckle assemblies (buckles) 

installed. AD 2024–01–11 required 

inspecting the buckle screws and, 

depending on the results, reidentifying 

the buckle, replacing the screws and 

reidentifying the buckle, or replacing 

the buckle. AD 2024–01–11 also 

prohibited installing certain buckles. 

This AD retains the requirements of AD 

2024–01–11, expands the applicability, 

and updates the referenced material. As 

an option to the actions required by this 

AD, this AD allows removing the male 

side from the lap of the restraint system 

assembly and installing a placard stating 

that use of the seat is prohibited; use of 

that crewmember seat or passenger seat 

is then prohibited until the actions 

required by the AD are accomplished 

and the male side from the lap of the 

restraint system assembly is reinstalled. 

This AD was prompted by a 

manufacturing defect in the screws used 

inside the buckle. The FAA is issuing 

this AD to address the unsafe condition 

on these products. 

DATES: This AD is effective November 

12, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in this AD 

as of November 12, 2024. 

The FAA must receive comments on 

this AD by December 9, 2024. 

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. 


ddrumheller on DSK120RN23PROD with RULES1