84272 Federal Register / Vol. 89, No. 204 / Tuesday, October 22, 2024 / Rules and Regulations 

Lancaster, NY 14086; telephone 716–683– 

5100; website safranaerosystems.com. 

(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 September 23, 2024. 

Victor Wicklund, 

Deputy Director, Compliance & Airworthiness 

Division, Aircraft Certification Service. 

[FR Doc. 2024–24370 Filed 10–21–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1691; Project 

Identifier MCAI–2023–01269–E; Amendment 

39–22847; AD 2024–19–05] 

RIN 2120–AA64 

Airworthiness Directives; Safran 

Helicopter Engines, S.A. (Type 

Certificate Previously Held by 

Turbomeca, S.A.) Engines 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Safran Helicopter Engines, S.A. (Safran) 

(type certificate previously held by 

Turbomeca, S.A.) Model Makila 1A, 

Makila 1A1, and Makila 1A2 engines. 

This AD is prompted by a determination 

that the accumulated service life of 

certain critical parts was 

underestimated. This AD requires 

determining the recalculated service life 

of certain critical parts, replacing if 

necessary, and also specifies conditions 

for installing the parts, 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 November 

26, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 26, 2024. 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No.FAA–2024–1691; 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: 

ad.easa.europa.eu. It is also available at 

regulations.gov under Docket No. FAA– 

2024–1691. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 1200 District 

Avenue, Burlington, MA 01803. 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– 

2024–1691. 

FOR FURTHER INFORMATION CONTACT: 

David Bergeron, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; phone: 

(860) 386–1805; email: 

David.J.Bergeron@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 all Safran Model Makila 1A, 

Makila 1A1, and Makila 1A2 engines. 

The NPRM published in the Federal 

Register on June 20, 2024 (89 FR 51858). 

The NPRM was prompted by EASA AD 

2023–0218, dated December 19, 2023 

(EASA AD 2023–0218) (also referred to 

as the MCAI), issued by EASA, which 

is the Technical Agent for the Member 

States of the European Union. The 

MCAI states that it has been determined 

that the accumulated service life of 

certain critical parts was 

underestimated. To address this 

potential unsafe condition, the 

manufacturer published service 

information that identifies the affected 

parts and provides instructions for 

recalculating the service life and 

replacing the affected parts. The MCAI 

specifies determining the recalculated 

service life of the affected parts and 

replacing if necessary. The MCAI also 

specifies conditions for installing the 

affected parts. This unsafe condition, if 

not addressed, could lead to operation 

of the affected parts beyond the part life, 

which could cause the failure of affected 

parts, possibly resulting in uncontained 

debris release with consequent damage 

to the helicopter and reduced control of 

the helicopter. 

In the NPRM, the FAA proposed to 

require determining the recalculated 

service life of certain critical parts, 

replacing the parts if necessary, and 

specified conditions for installing the 

parts. 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–2024–1691. 

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. Except for minor editorial 

changes, this AD is adopted as proposed 

in the NPRM. 

Material Incorporated by Reference 

Under 1 CFR Part 51 

The FAA reviewed EASA AD 2023– 

0218, which specifies determining the 

recalculated service life of affected parts 

and replacing the affected parts, if 

necessary. EASA AD 2023–0218 also 

specifies conditions for installing the 

affected parts. 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 0 engines installed on helicopters 

of U.S. registry. 

The FAA estimates the following 

costs to comply with this AD: 


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Federal Register / Vol. 89, No. 204 / Tuesday, October 22, 2024 / Rules and Regulations 84273 

ESTIMATED COSTS

Action Labor cost Parts cost Cost per 

product 

Cost on U.S. 

operators 

Recalculate cycle lives ........................................ 2 work-hours × $85 per hour = $170 ................. $0 $170 $0 

Replace axial wheel 1 ......................................... 8 work-hours × $85 per hour = $680 ................. 118,703 119,383 0 

Replace axial wheel 2 ......................................... 8 work-hours × $85 per hour = $680 ................. 74,023 74,703 0 

Replace axial wheel 3 ......................................... 8 work-hours × $85 per hour = $680 ................. 86,939 87,619 0 

Replace centrifugal impeller ............................... 8 work-hours × $85 per hour = $680 ................. 164,583 165,263 0 

Replace high-pressure turbine (HPT) disk 1 ...... 8 work-hours × $85 per hour = $680 ................. 97,800 98,480 0 

Replace HPT disk 2 ............................................ 8 work-hours × $85 per hour = $680 ................. 92,284 92,964 0 

Replace injection wheel ...................................... 8 work-hours × $85 per hour = $680 ................. 76,799 77,479 0 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Findings 

This AD will not have federalism 

implications under Executive Order 

13132. This AD will not have a 

substantial direct effect on the States, on 

the relationship between the national 

government and the States, or on the 

distribution of power and 

responsibilities among the various 

levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

(2) Will not affect intrastate aviation 

in Alaska, and 

(3) Will not have a significant 

economic impact, positive or negative, 

on a substantial number of small entities 

under the criteria of the Regulatory 

Flexibility Act. 

List of Subjects in 14 CFR Part 39 

Air transportation, Aircraft, Aviation 

safety, Incorporation by reference, 

Safety. 

The Amendment 

Accordingly, under the authority 

delegated to me by the Administrator, 

the FAA amends 14 CFR part 39 as 

follows: 

PART 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

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

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2024–19–05 Safran Helicopter Engines, S.A. 

(Type Certificate Previously Held by 

Turbomeca, S.A.): Amendment 39– 

22847; Docket No. FAA–2024–1691; 

Project Identifier MCAI–2023–01269–E. 

(a) Effective Date 

This airworthiness directive (AD) is 

effective November 26, 2024. 

(b) Affected ADs 

None. 

(c) Applicability 

This AD applies to Safran Helicopter 

Engines, S.A. (type certificate previously 

held by Turbomeca, S.A.) Model Makila 1A, 

Makila 1A1, and Makila 1A2 engines. 

(d) Subject 

Joint Aircraft System Component (JASC) 

Code 7200, Engine (Turbine/Turboprop). 

(e) Unsafe Condition 

This AD was prompted by a determination 

that the accumulated service life of certain 

critical parts was underestimated. The FAA 

is issuing this AD to prevent failure of critical 

parts. The unsafe condition, if not addressed, 

could result in uncontained release of highenergy debris from the engine, with 

consequent damage to the engine, damage to 

the helicopter, and reduced control of the 

helicopter. 

(f) Compliance 

Comply with this AD within the 

compliance times specified, unless already 

done. 

(g) Required Actions 

Except as specified in paragraph (h) and (i) 

of this AD: Comply with all required actions 

and compliance times specified in, and in 

accordance with, European Union Aviation 

Safety Agency (EASA) AD 2023–0218, dated 

December 19, 2023 (EASA AD 2023–0218). 

(h) Exceptions to EASA AD 2023–0218 

(1) Where EASA AD 2023–0218 refers to its 

effective date, this AD requires using the 

effective date of this AD. 

(2) Where the service information 

referenced in EASA AD 2023–0218 specifies 

to return certain parts to the manufacturer, 

this AD requires removing those parts from 

service. 

(3) This AD does not adopt the Remarks 

paragraph of EASA AD 2023–0218. 

(4) Where the service information 

referenced in EASA AD 2023–0218 specifies 

contacting the manufacturer for additional 

cycles for certain parts, this AD requires 

contacting the Manager, International 

Validation Branch, FAA, for additional 

cycles for certain parts, if those parts are 

installed on aircraft of U.S. Registry. 

(i) No Reporting Requirement 

Although the service information 

referenced in EASA AD 2023–0218 specifies 

to submit certain information to the 

manufacturer, this AD does not include that 

requirement. 

(j) Alternative Methods of Compliance 

(AMOCs) 

(1) 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, send it to the attention of the person 

identified in paragraph (k) of this AD and 

email to: AMOC@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. 

(k) Additional Information 

For more information about this AD, 

contact David Bergeron, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, Suite 

410, Westbury, NY 11590; phone: (860) 386– 

1805; email: david.j.bergeron@faa.gov. 

(l) Material Incorporated by Reference 

(1) The Director of the Federal Register 

approved the incorporation by reference of 


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84274 Federal Register / Vol. 89, No. 204 / Tuesday, October 22, 2024 / Rules and Regulations 

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) European Union Aviation Safety Agency 

(EASA) AD 2023–0218, dated December 19, 

2023. 

(ii) [Reserved] 

(3) For EASA material identified in this 

AD, contact EASA, Konrad-Adenauer-Ufer 3, 

50668 Cologne, Germany; phone: +49 221 

8999 000; email: ADs@easa.europa.eu; 

website: ad.easa.europa.eu. You may find 

this EASA AD on the EASA website at 

ad.easa.europa.eu. 

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

Airworthiness Products Section, Operational 

Safety Branch, 1200 District Avenue, 

Burlington, MA 01803. 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 September 13, 2024. 

Steven W. Thompson, 

Acting Deputy Director, Compliance & 

Airworthiness Division, Aircraft Certification 

Service. 

[FR Doc. 2024–24365 Filed 10–21–24; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2024–1685; Project 

Identifier MCAI–2024–00076–T; Amendment 

39–22855; AD 2024–19–13] 

RIN 2120–AA64 

Airworthiness Directives; Airbus SAS 

Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: The FAA is superseding 

Airworthiness Directive (AD) 2023–04– 

06 and AD 2024–04–07, which applied 

to certain Airbus SAS Model A318, 

A319, A320 and A321 series airplanes. 

AD 2023–04–06 and AD 2024–04–07 

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 2023–04–06 and 

AD 2024–04–07 and requires revising 

the existing maintenance or inspection 

program, as applicable, to incorporate 

new or more restrictive airworthiness 

limitations; as specified in the 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 November 

26, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain publication listed in this AD 

as of November 26, 2024. 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of April 22, 2024 (89 FR 

19234, March 18, 2024). 

The Director of the Federal Register 

approved the incorporation by reference 

of a certain other publication listed in 

this AD as of April 10, 2023 (88 FR 

13665, March 6, 2023). 

ADDRESSES: 

AD Docket: You may examine the AD 

docket at regulations.gov under Docket 

No. FAA–2024–1685; or in person at 

Docket Operations between 9 a.m. and 

5 p.m., Monday through Friday, except 

Federal holidays. The AD docket 

contains this final rule, the mandatory 

continuing airworthiness information 

(MCAI), any comments received, and 

other information. The address for 

Docket Operations is U.S. Department of 

Transportation, Docket Operations, M– 

30, West Building Ground Floor, Room 

W12–140, 1200 New Jersey Avenue SE, 

Washington, DC 20590. 

Material Incorporated by Reference: 

• For EASA material identified in this 

AD, contact EASA, Konrad-AdenauerUfer 3, 50668 Cologne, Germany; 

telephone +49 221 8999 000; email 

ADs@easa.europa.eu; website 

easa.europa.eu. You may find this 

material on the EASA website at 

ad.easa.europa.eu. 

• You may view this material at the 

FAA, Airworthiness Products Section, 

Operational Safety Branch, 2200 South 

216th 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–2024–1685. 

FOR FURTHER INFORMATION CONTACT: 

Timothy Dowling, Aviation Safety 

Engineer, FAA, 1600 Stewart Avenue, 

Suite 410, Westbury, NY 11590; 

telephone 206–231–3367; email 

timothy.p.dowling@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Background 

The FAA issued a notice of proposed 

rulemaking (NPRM) to amend 14 CFR 

part 39 to supersede AD 2023–04–06, 

Amendment 39–22353 (88 FR 13665, 

March 6, 2023) (AD 2023–04–06), and 

AD 2024–04–07, Amendment 39–22686 

(89 FR 19234, March 18, 2024). AD 

2023–04–06 and AD 2024–04–07 

applied to Airbus SAS Model A318– 

111, –112, –121, and –122 airplanes; 

Model A319–111, –112, –113, –114, 

–115, –131, –132, –133, –151N, –153N, 

and –171N airplanes; Model A320–211, 

–212, –214, –216, –231, –232, –233, 

–251N, –252N, –253N, –271N, –272N, 

and –273N airplanes; and Model A321– 

111, –112, –131, –211, –212, –213, –231, 

–232, –251N, –252N, –253N, –271N, 

–272N, –251NX, –252NX, –253NX, 

–271NX, and –272NX airplanes. AD 

2023–04–06 and AD 2024–04–07 

required revising the existing 

maintenance or inspection program, as 

applicable, to incorporate additional 

new or more restrictive airworthiness 

limitations. The FAA issued AD 2023– 

04–06 and AD 2024–04–07 to address a 

safety-significant latent failure. 

The NPRM published in the Federal 

Register on June 18, 2024 (89 FR 51471). 

The NPRM was prompted by AD 2024– 

0030, dated January 31, 2024, issued by 

EASA, which is the Technical Agent for 

the Member States of the European 

Union (EASA AD 2024–0030) (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 

require revising the existing 

maintenance or inspection program, as 

applicable, to incorporate additional 

new or more restrictive airworthiness 

limitations, as specified in EASA AD 

2024–0030. The FAA is issuing this AD 

to address a safety significant latent 

failure (that is not annunciated), which, 

in combination with one or more other 

specific failures or events, could result 

in a hazardous or catastrophic failure 

condition. 

You may examine the MCAI in the 

AD docket at regulations.gov under 

Docket No. FAA–2024–1685. 

Discussion of Final Airworthiness 

Directive 

Comments 

The FAA received comments from the 

Air Line Pilots Association, 

International (ALPA) who supported the 

NPRM without change. 

Additional Changes Made To This AD 

The proposed AD did not retain the 

terminating action specified in 

paragraph (j) of AD 2024–04–07. The 

FAA has added that terminating action 

to paragraph (j) of this AD and 

redesignated subsequent paragraphs of 

this AD accordingly. 


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