Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca S.A.)

[Federal Register Volume 89, Number 227 (Monday, November 25, 2024)]
[Rules and Regulations]
[Pages 92789-92792]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-27641]


-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2024-2537; Project Identifier MCAI-2024-00631-E; 
Amendment 39-22892; AD 2024-24-02]
RIN 2120-AA64


Airworthiness Directives; Safran Helicopter Engines, S.A. (Type 
Certificate Previously Held by Turbomeca S.A.)

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

-----------------------------------------------------------------------

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Safran Helicopter Engines, S.A. (Safran) Model ARRIUS 2F engines. This 
AD was prompted by a report of an uncommanded in-flight shut-down 
(IFSD) of a Safran Model ARRIUS 2F engine, followed by an investigation 
that revealed the IFSD was due to a missing lubricating and balancing 
groove on one of the bearings of the fuel control unit (FCU) fuel pump 
related to a non-conforming manufacturing process. This AD requires 
removal of the affected fuel pump from service and replacement with a 
serviceable part, 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 December 10, 2024.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of December 10, 
2024.
    The FAA must receive comments on this AD by January 9, 2025.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
    <bullet> Federal eRulemaking Portal: Go to regulations.gov. Follow 
the instructions for submitting comments.
    <bullet> Fax: (202) 493-2251.
    <bullet> 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.
    <bullet> 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-2024-2537; 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 
street address for Docket Operations is listed above.
    Material Incorporated by Reference:
    <bullet> For EASA material identified in this AD, contact EASA, 
Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 
000; email: [email protected]; website: easa.europa.eu. You may find 
this material on the EASA website at ad.easa.europa.eu.
    <bullet> You may view this material at the FAA, Operational Safety 
Branch, 1200

[[Page 92790]]

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-2024-2537.

FOR FURTHER INFORMATION CONTACT: David Bergeron, Aviation Safety 
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
phone: (860) 386-1805; email: [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    The FAA invites you to send any written data, views, or arguments 
about this final rule. Send your comments to an address listed under 
ADDRESSES. Include ``Docket No. FAA-2024-2537; Project Identifier MCAI-
2024-00631-E'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the final rule, 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 
this final rule 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 final rule.

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 AD 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 AD, 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 AD. Submissions containing CBI should be sent to David 
Bergeron, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 
410, Westbury, NY 11590. Any commentary that the FAA receives which is 
not specifically designated as CBI will be placed in the public docket 
for this rulemaking.

Background

    EASA, which is the Technical Agent for the Member States of the 
European Union, has issued EASA Emergency AD 2024-0202-E, dated October 
22, 2024 (EASA AD 2024-0202-E) (also referred to as the MCAI), to 
correct an unsafe condition on all Safran Model ARRIUS 2F engines. The 
MCAI states that an occurrence was reported of an uncommanded IFSD of 
an ARRIUS 2F engine, followed by a hard landing, and that the following 
investigation revealed that the IFSD was caused by a missing 
lubricating and balancing groove on one of the bearings of the FCU fuel 
pump due to a non-conforming manufacturing process. A subsequent 
quality analysis identified a population of FCUs possibly affected by 
the non-conforming manufacturing process. This condition, if not 
corrected, could result in a significant reduction of the control of a 
single engine helicopter.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2024-2537.

Material Incorporated by Reference Under 1 CFR Part 51

    The FAA reviewed EASA AD 2024-0202-E, which specifies procedures 
for replacement of the affected parts with serviceable parts. The MCAI 
also specifies prohibiting installation of affected parts on an engine. 
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

    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 is issuing this AD after determining 
that the unsafe condition described previously is likely to exist or 
develop on other products of the same type design.

AD Requirements

    This AD requires accomplishing the actions specified in the 
material already described, except for any differences identified as 
exceptions in the regulatory text of this AD.

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD 
process, the FAA developed a process to use some civil aviation 
authority (CAA) ADs as the primary source of information for compliance 
with requirements for corresponding FAA ADs. The FAA has since 
coordinated with other manufacturers and CAAs to use this process. As a 
result, EASA AD 2024-0202-E will be incorporated by reference in this 
final rule. This AD, therefore, requires compliance with EASA AD 2024-
0202-E in its entirety through that incorporation, except for any 
differences identified as exceptions in the regulatory text of this AD. 
Using common terms that are the same as the heading of a particular 
section in the EASA AD does not mean that operators need comply only 
with that section. For example, where the AD requirement refers to 
``all required actions and compliance times,'' compliance with this AD 
requirement is not limited to the section titled ``Required Action(s) 
and Compliance Time(s)'' in EASA AD 2024-0202-E. Service information 
required by the EASA AD for compliance is available at regulations.gov 
under Docket No. FAA-2024-2537.

Justification for Immediate Adoption and Determination of the Effective 
Date

    Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5 
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and 
comment procedures for rules when the agency, for ``good cause,'' finds 
that those procedures are ``impracticable, unnecessary, or contrary to 
the public interest.'' Under this section, an agency, upon finding good 
cause, may issue a final rule without providing notice and seeking 
comment prior to issuance. Further, section 553(d) of the APA 
authorizes agencies to make rules effective in less than thirty days, 
upon a finding of good cause.
    An unsafe condition exists that requires the immediate adoption of 
this AD without providing an opportunity for public comments prior to 
adoption. The FAA has found that the risk to the flying public 
justifies forgoing notice and comment prior to adoption of this rule 
because missing lubricating and balancing grooves on the bearings of 
the FCU fuel pump, if not corrected, could result in an uncommanded 
IFSD, and a significant reduction of the control of a single engine 
helicopter. The FAA has determined that because this condition can 
occur without warning, these FCUs need to be removed from service 
within 15 flight hours or 30 days, whichever occurs first after the 
effective date of this AD. These compliance times are shorter than the 
time necessary for the public to comment and for publication

[[Page 92791]]

of the final rule. Accordingly, notice and opportunity for prior public 
comment are impracticable and contrary to the public interest pursuant 
to 5 U.S.C. 553(b).
    In addition, the FAA finds that good cause exists pursuant to 5 
U.S.C. 553(d) for making this amendment effective in less than 30 days, 
for the same reasons the FAA found good cause to forgo notice and 
comment.

Regulatory Flexibility Act

    The requirements of the Regulatory Flexibility Act (RFA) do not 
apply when an agency finds good cause pursuant to 5 U.S.C. 553 to adopt 
a rule without prior notice and comment. Because the FAA has determined 
that it has good cause to adopt this rule without prior notice and 
comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 5 engines installed on 
helicopters of U.S. registry.
    The FAA estimates the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Replace the FCU.......................  1 work-hour x $85 per            $20,650         $20,735        $103,675
                                         hour = $85.
----------------------------------------------------------------------------------------------------------------

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII: Aviation Programs 
describes in more detail the scope of the Agency's authority.
    The FAA is issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701: General requirements. 
Under that section, Congress charges the FAA with promoting safe flight 
of civil aircraft in air commerce by prescribing regulations for 
practices, methods, and procedures the Administrator finds necessary 
for safety in air commerce. This regulation is within the scope of that 
authority because it addresses an unsafe condition that is likely to 
exist or develop on products identified in this rulemaking action.

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866, and
    (2) Will not affect intrastate aviation in Alaska.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

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

0
1. The authority citation for part 39 continues to read as follows:

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


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2024-24-02 Safran Helicopter Engines, S.A. (Type Certificate 
Previously Held by Turbomeca S.A.): Amendment 39-22892; Docket No. 
FAA-2024-2537; Project Identifier MCAI-2024-00631-E.

 (a) Effective Date

    This airworthiness directive (AD) is effective December 10, 
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 ARRIUS 2F 
engines, as identified in European Union Aviation Safety Agency 
(EASA) Emergency AD 2024-0202-E, dated October 22, 2024 (EASA AD 
2024-0202-E).

 (d) Subject

    Joint Aircraft System Component (JASC) Code 7314, Engine Fuel 
Pump.

 (e) Unsafe Condition

    This AD was prompted by a report of an uncommanded in-flight 
shut-down (IFSD) of a Safran Model ARRIUS 2F engine, followed by an 
investigation that revealed the IFSD was due to a missing 
lubricating and balancing groove on one of the bearings of the fuel 
control unit (FCU) fuel pump related to a non-conforming 
manufacturing process. The FAA is issuing this AD to detect and 
correct missing lubricating and balancing grooves on the bearings of 
the FCU fuel pump. The unsafe condition, if not addressed, could 
result in an uncommanded IFSD and a significant reduction of the 
control of a single engine helicopter.

 (f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

 (g) Required Actions

    Except as specified in paragraphs (h) and (i) of this AD: Do all 
required actions within the compliance times specified in, and in 
accordance with EASA AD 2024-0202-E.

 (h) Exceptions to EASA AD 2024-0202-E

    (1) Where EASA AD 2024-0202-E requires compliance from its 
effective date, this AD requires using the effective date of this 
AD.
    (2) This AD does not adopt the ``Remarks'' section of EASA AD 
2024-0202-E.
    (3) Although the service information referenced in EASA AD 2024-
0202-E specifies to return the FCU to a Repair Center approved by 
Safran Helicopter Engines, this AD requires removing those parts 
from service.

 (i) No Reporting Requirement

    Although the service information referenced in EASA AD 2024-
0202-E 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: [email protected].
    (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.

[[Page 92792]]

 (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: 
[email protected].

 (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) European Union Aviation Safety Agency (EASA) Emergency AD 
2024-0202-E, dated October 22, 2024.
    (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: [email protected]; website: easa.europa.eu. You may 
find this material on the EASA website at ad.easa.europa.eu
    (4) You may view this material at the FAA, 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 [email protected].

    Issued on November 20, 2024.
Steven W. Thompson,
Acting Deputy Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2024-27641 Filed 11-21-24; 11:15 am]
BILLING CODE 4910-13-P

The complete text was extracted from the official GovInfo HTML edition for this publication. Acquired 2026-10-09T01:27:06.851684+00:00. Text extraction preserves the recorded source wording; it does not determine current requirements.

Open the captured official edition

Source SHA-256

e9efedaec198d4a5e369d98a1fceab2ede15e23f42edcf79a751506c7c70fbd1

Text SHA-256

6add2e1129ddf91c8672b4bab700e329cb16cf2857fdd1c8d68f7ece5c22db72