73264 Federal Register / Vol. 89, No. 175 / Tuesday, September 10, 2024 / Rules and Regulations 

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: 

2024–15–06 Airbus Canada Limited 

Partnership (Type Certificate Previously 

Held by C Series Aircraft Limited 

Partnership (CSALP); Bombardier, Inc.): 

Amendment 39–22797; Docket No. 

FAA–2024–1289; Project Identifier 

MCAI–2023–01049–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 15, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Airbus Canada Limited 

Partnership (type certificate previously held 

by C Series Aircraft Limited Partnership 

(CSALP); Bombardier, Inc) Model BD–500– 

1A10 and BD–500–1A11 airplanes, 

certificated in any category, as identified in 

Transport Canada AD CF–2023–67, dated 

October 4, 2023 (Transport Canada AD CF– 

2023–67). 

(d) Subject 

Air Transport Association (ATA) of 

America Code 25, Equipment/furnishings. 

(e) Unsafe Condition 

This AD was prompted by a report that at 

lavatory and galley locations within the 

airplane, incorrect terminal lugs have been 

installed which are not compatible with the 

associated wire gauge. The FAA is issuing 

this AD to address incorrect terminal lugs 

that may become loose causing a loss of 

electromagnetic interference protection, 

which could result in false alarms of the 

lavatory smoke detectors, false alarms of low 

crew oxygen pressure, loss of automatic 

control of automatic cabin temperature 

control, and loss of lavatory flush. The unsafe 

condition, if not corrected, could result in an 

increase in crew workload, including 

diversions and descent to below 10,000 feet 

or the lowest safe altitude. 

(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– 

2023–67. 

(h) Exception to Transport Canada AD CF– 

2023–67 

(1) Where Transport Canada AD CF–2023– 

67 refers to its effective date, this AD requires 

using the effective date of this AD. 

(2) Where Transport Canada AD CF–2023– 

67 refers to hours air time, this AD requires 

using flight hours. 

(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 Airbus 

Canada Limited Partnership’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 William Reisenauer, 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 

Under 1 CFR Part 51 

(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. 

(i) Transport Canada AD CF–2023–67, 

dated October 4, 2023. 

(ii) [Reserved] 

(3) For Transport Canada AD CF–2023–67, 

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 at tc.canada.ca/ 

en/aviation. 

(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 July 23, 2024. 

Peter A. White, 

Deputy Director, Integrated Certificate 

Management Division, Aircraft Certification 

Service. 

[FR Doc. 2024–20307 Filed 9–9–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1290; Project 

Identifier MCAI–2024–00078–T; Amendment 

39–22795; AD 2024–15–04] 

RIN 2120–AA64 

Airworthiness Directives; Dassault 

Aviation Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2023–22– 

13, which applied to certain Dassault 

Aviation Model FALCON 7X airplanes. 

AD 2023–22–13 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 

certain actions in AD 2023–22–13 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 


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Federal Register / Vol. 89, No. 175 / Tuesday, September 10, 2024 / Rules and Regulations 73265 

incorporated by reference (IBR). The 

FAA is issuing this AD to address the 

unsafe condition on these products. 

DATES: This AD is effective October 15, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 15, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of December 29, 2023 (88 FR 

82246, November 24, 2023). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1290; 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, 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 at regulations.gov 

under Docket No. FAA–2024–1290. 

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 2023–22–13, 

Amendment 39–22597 (88 FR 82246, 

November 24, 2023) (AD 2023–22–13), 

AD 2023–22–13 applied to certain 

Dassault Aviation Model FALCON 7X 

airplanes. AD 2023–22–13 required 

revising the existing maintenance or 

inspection program, as applicable, to 

incorporate new or more restrictive 

airworthiness limitations. The FAA 

issued AD 2023–22–13 to address 

reduced structural integrity and reduced 

control of the airplane due to the failure 

of system components. AD 2023–22–13 

specifies that accomplishing the 

revision required by that AD terminates 

certain requirements of AD 2014–16–23, 

Amendment 39–17947 (79 FR 52545, 

September 4, 2014) (AD 2014–16–23). 

This AD therefore continues to allow 

that terminating action. 

The NPRM published in the Federal 

Register on May 13, 2024 (89 FR 41361). 

The NPRM was prompted by AD 2024– 

0033, dated January 31, 2024, issued by 

EASA, which is the Technical Agent for 

the Member States of the European 

Union, (EASA AD 2024–0033) (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 certain actions in 

AD 2023–22–13 and to require revising 

the existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations, as specified in EASA AD 

2024–0033. The FAA is issuing this AD 

to address reduced structural integrity 

and reduced control of the airplane due 

to the failure of system components. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2024–1290. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received no comments on 

the NPRM or on the determination of 

the cost to the public. 

Conclusion 

This product has been approved by 

the aviation authority of another 

country and is approved for operation in 

the United States. Pursuant to the FAA’s 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI referenced above. The FAA 

reviewed the relevant data and 

determined that air safety requires 

adopting this AD as proposed. 

Accordingly, the FAA is issuing this AD 

to address the unsafe condition on this 

product. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. None of the changes will 

increase the economic burden on any 

operator. 

Related Material Under 1 CFR Part 51 

The FAA reviewed EASA AD 2024– 

0033. This material specifies new or 

more restrictive airworthiness 

limitations for airplane structures and 

safe life limits. 

This AD also requires EASA AD 

2023–0063, dated March 20, 2023, 

which the Director of the Federal 

Register approved for incorporation by 

reference as of December 29, 2023 (88 

FR 82246, November 24, 2023). 

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 134 airplanes of U.S. registry. 

The FAA estimates the following costs 

to comply with this AD: 

The FAA estimates the total cost per 

operator for the retained actions from 

AD 2023–22–13 to be $7,650 (90 workhours × $85 per work-hour). 

The FAA has determined that revising 

the existing maintenance or inspection 

program takes an average of 90 workhours per operator, although the agency 

recognizes that this number may vary 

from operator to operator. Since 

operators incorporate maintenance or 

inspection program changes for their 

affected fleet(s), the FAA has 

determined that a per-operator estimate 

is more accurate than a per-airplane 

estimate. 

The FAA estimates the total cost per 

operator for the new actions to be 

$7,650 (90 work-hours × $85 per workhour). 

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 


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73266 Federal Register / Vol. 89, No. 175 / Tuesday, September 10, 2024 / Rules and Regulations 

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 

(AD) 2023–22–13, Amendment 39– 

22597 (88 FR 82246, November 24, 

2023); and 

■ b. Adding the following new AD: 

2024–15–04 Dassault Aviation: 

Amendment 39–22795; Docket No. 

FAA–2024–1290; Project Identifier 

MCAI–2024–00078–T. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective October 15, 2024. 

(b) Affected ADs 

(1) This AD replaces AD 2023–22–13, 

Amendment 39–22597 (88 FR 82246, 

November 24, 2023) (AD 2023–22–13). 

(2) This AD affects AD 2014–16–23, 

Amendment 39–17947 (79 FR 52545, 

September 4, 2014) (AD 2014–16–23). 

(c) Applicability 

This AD applies to Dassault Aviation 

Model FALCON 7X airplanes, certificated in 

any category, with an original airworthiness 

certificate or original export certificate of 

airworthiness issued on or before September 

7, 2023. 

Note 1 to paragraph (c): Model FALCON 

7X airplanes with modification M1000 

incorporated are commonly referred to as 

‘‘Model FALCON 8X’’ airplanes as a 

marketing designation. 

(d) Subject 

Air Transport Association (ATA) of 

America Code 05, Time Limits/Maintenance 

Checks. 

(e) Unsafe Condition 

This AD was prompted by a determination 

that new or more restrictive airworthiness 

limitations are necessary. The FAA is issuing 

this AD to address reduced structural 

integrity and reduced control of the airplane 

due to the failure of system components. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Retained Revision of the Existing 

Maintenance or Inspection Program, With a 

New Terminating Action 

This paragraph restates the requirements of 

paragraph (j) of AD 2023–22–13, with a new 

terminating action. For airplanes with an 

original airworthiness certificate or original 

export certificate of airworthiness issued on 

or before September 7, 2022, except as 

specified in paragraph (h) of this AD: Comply 

with all required actions and compliance 

times specified in, and in accordance with, 

European Union Aviation Safety Agency 

(EASA) AD 2023–0063, dated March 20, 2023 

(EASA AD 2023–0063). Accomplishing the 

revision of the existing maintenance or 

inspection program required by paragraph (j) 

of this AD terminates the requirements of this 

paragraph. 

(h) Retained Exceptions to EASA AD 2023– 

0063, With No Changes 

This paragraph restates the exceptions 

specified in paragraph (k) of AD 2023–22–13, 

with no changes. 

(1) This AD does not adopt the 

requirements specified in paragraphs (1) and 

(2) of EASA AD 2023–0063. 

(2) Paragraph (3) of EASA AD 2023–0063 

specifies revising ‘‘the approved AMP 

[aircraft maintenance program]’’ within 12 

months after its effective date, but this AD 

requires revising the existing maintenance or 

inspection program, as applicable, within 90 

days after December 29, 2023 (the effective 

date of AD 2023–22–13). 

(3) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2023–0063 is at the applicable 

‘‘limitations’’ and ‘‘associated thresholds’’ as 

incorporated by the requirements of 

paragraph (3) of EASA AD 2023–0063, or 

within 90 days after December 29, 2023 (the 

effective date of AD 2023–22–13), whichever 

occurs later. 

(4) This AD does not adopt the provisions 

specified in paragraphs (4) and (5) of EASA 

AD 2023–0063. 

(5) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2023–0063. 

(i) Retained Restrictions on Alternative 

Actions, Intervals, and Critical Design 

Configuration Control Limitations (CDCCLs), 

With a New Exception 

This paragraph restates the requirements of 

paragraph (l) of AD 2023–22–13, with a new 

exception. Except as required by paragraph 

(j) of this AD, after the maintenance or 

inspection program has been revised as 

required by paragraph (g) of this AD, no 

alternative actions (e.g., inspections), 

intervals, or CDCCLs are allowed unless they 

are approved as specified in the provisions 

of the ‘‘Ref. Publications’’ section of EASA 

AD 2023–0063. 

(j) New Revision of the Existing Maintenance 

or Inspection Program 

Except as specified in paragraph (k) of this 

AD: Comply with all required actions and 

compliance times specified in, and in 

accordance with, EASA AD 2024–0033, 

dated January 31, 2024 (EASA AD 2024– 

0033). Accomplishing the revision of the 

existing maintenance or inspection program 

required by this paragraph terminates the 

requirements of paragraph (g) of this AD. 

(k) Exceptions to EASA AD 2024–0033 

(1) This AD does not adopt the 

requirements specified in paragraphs (1) and 

(2) of EASA AD 2024–0033. 

(2) Paragraph (3) of EASA AD 2024–0033 

specifies revising ‘‘the approved AMP’’ 

within 12 months after its effective date, but 

this AD requires revising the existing 

maintenance or inspection program, as 

applicable, within 90 days after the effective 

date of this AD. 

(3) The initial compliance time for doing 

the tasks specified in paragraph (3) of EASA 

AD 2024–0033 is at the applicable 

‘‘limitations’’ and ‘‘associated thresholds’’ as 

incorporated by the requirements of 

paragraph (3) of EASA AD 2024–0033, or 

within 90 days after the effective date of this 

AD, whichever occurs later. 

(4) This AD does not adopt the provisions 

specified in paragraphs (4) and (5) of EASA 

AD 2024–0033. 

(5) This AD does not adopt the ‘‘Remarks’’ 

section of EASA AD 2024–0033. 

(l) New Provisions for Alternative Actions, 

Intervals, and CDCCLs 

After the existing maintenance or 

inspection program has been revised as 

required by paragraph (j) of this AD, no 

alternative actions (e.g., inspections), 

intervals, and CDCCLs are allowed unless 

they are approved as specified in the 

provisions of the ‘‘Ref. Publications’’ section 

of EASA AD 2024–0033. 

(m) Terminating Action for Certain 

Requirements in AD 2014–16–23 

Accomplishing the actions required by 

paragraphs (g) or (j) of this AD terminates the 

requirements of paragraph (q) of AD 2014– 

16–23. 

(n) 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 International Validation Branch, send 


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it to the attention of the person identified in 

paragraph (o) of this AD. Information may be 

emailed to: 9-AVS-AIR-730-AMOC@faa.gov. 

Before using any approved AMOC, notify 

your appropriate principal inspector, or 

lacking a principal inspector, the manager of 

the responsible Flight Standards Office. 

(2) Contacting the Manufacturer: For any 

requirement in this AD to obtain instructions 

from a manufacturer, the instructions must 

be accomplished using a method approved 

by the Manager, International Validation 

Branch, FAA; or EASA; or Dassault 

Aviation’s EASA Design Organization 

Approval (DOA). If approved by the DOA, 

the approval must include the DOAauthorized signature. 

(o) Additional Information 

For more information about this AD, 

contact Tom Rodriguez, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; telephone 206– 

231–3226; email: tom.rodriguez@faa.gov. 

(p) 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 October 15, 2024. 

(i) European Union Aviation Safety Agency 

(EASA) AD 2024–0033, dated January 31, 

2024. 

(ii) [Reserved] 

(4) The following material was approved 

for IBR on December 29, 2023 (88 FR 82246, 

November 24, 2023). 

(i) European Union Aviation Safety Agency 

(EASA) AD 2023–0063, dated March 20, 

2023. 

(ii) [Reserved] 

(5) For EASA ADs 2024–0033 and 2023– 

0063, 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 these 

EASA ADs on the EASA website at 

ad.easa.europa.eu. 

(6) 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. 

(7) 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 July 16, 2024. 

James D. Foltz, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–20315 Filed 9–9–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1002; Project 

Identifier MCAI–2022–01574–R; Amendment 

39–22799; AD 2024–15–08] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Airbus Helicopters Model AS350B, 

AS350BA, AS350B1, AS350B2, 

AS350D, AS355E, AS355F, AS355F1, 

AS355F2, and AS355N helicopters. This 

AD was prompted by reports of 

debonding on the leading edge 

protection of certain part-numbered 

main rotor blades (MRBs). This AD 

requires repetitively tap inspecting the 

MRB and, depending on the results, 

taking corrective action. This AD also 

prohibits installing an affected MRB on 

any helicopter unless its requirements 

are met. These actions are 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 15, 

2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of October 15, 2024. 

ADDRESSES:

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1002; 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; phone: 

+49 221 8999 000; email: ADs@

easa.europa.eu; website: 

easa.europa.eu. You may find the EASA 

material on the EASA website at 

ad.easa.europa.eu. 

• You may view this material at the 

FAA, Office of the Regional Counsel, 

Southwest Region, 10101 Hillwood 

Parkway, Room 6N–321, Fort Worth, TX 

76177. 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–2024–1002. 

Other Related Material: For Airbus 

Helicopters material identified in this 

AD, contact Airbus Helicopters, 2701 

North Forum Drive, Grand Prairie, TX 

75052; telephone (972) 641–0000 or 

(800) 232–0323; fax (972) 641–3775; or 

at airbus.com/en/products-services/ 

helicopters/hcare-services/airbusworld. 

You may also view this material at the 

FAA contact information under Material 

Incorporated by Reference above. 

FOR FURTHER INFORMATION CONTACT: Dan 

McCully, Aviation Safety Engineer, 

FAA, 1600 Stewart Ave., Suite 410, 

Westbury, NY 11590; phone: (404) 474– 

5548; email: william.mccully@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

EASA, which is the Technical Agent 

for the Member States of the European 

Union, has issued EASA AD 2022–0246, 

dated December 12, 2022 (EASA AD 

2022–0246), to correct an unsafe 

condition on all Airbus Helicopters 

Model AS 350 B, AS 350 BA, AS 350 

B1, AS 350 B2, AS 350 BB, AS 350 D, 

AS 355 E, AS 355 F, AS 355 F1, AS 355 

F2, and AS 355 N helicopters. 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 by adding an AD that would 

apply to Airbus Helicopters Model 

AS350B, AS350BA, AS350B1, 

AS350B2, AS350D, AS355E, AS355F, 

AS355F1, AS355F2, and AS355N 

helicopters. The NPRM published in the 

Federal Register on April 16, 2024 (89 

FR 26794). The NPRM was prompted by 

reports of debonding on the stainless 

steel leading edge protection of certain 

part-numbered MRBs. The NPRM 

proposed to require repetitively tap 

inspecting the MRB and, depending on 

the results, taking corrective action. The 

NPRM also prohibited installing an 

affected MRB on any helicopter unless 

its requirements are met, as specified in 

EASA AD 2022–0246. 

The FAA is issuing this AD to address 

the debonding of the MRB leading edge 

protection. The unsafe condition, if not 

addressed, could result in a significant 

unbalance of the main rotor, a high level 

of vibration, failure of the main rotor, 

failure of the main gearbox, and 

subsequent loss of control of the 

helicopter. 


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