Legal Status This site displays a prototype of a “Web 2.0” version of the daily
Federal Register. It is not an official legal edition of the Federal
Register, and does not replace the official print version or the official
electronic version on GPO’s govinfo.gov.

The documents posted on this site are XML renditions of published Federal
Register documents. Each document posted on the site includes a link to the
corresponding official PDF file on govinfo.gov. This prototype edition of the
daily Federal Register on FederalRegister.gov will remain an unofficial
informational resource until the Administrative Committee of the Federal
Register (ACFR) issues a regulation granting it official legal status.
For complete information about, and access to, our official publications
and services, go to About the Federal Register on NARA's archives.gov.

The OFR/GPO partnership is committed to presenting accurate and reliable
regulatory information on FederalRegister.gov with the objective of
establishing the XML-based Federal Register as an ACFR-sanctioned
publication in the future. While every effort has been made to ensure that
the material on FederalRegister.gov is accurately displayed, consistent with
the official SGML-based PDF version on govinfo.gov, those relying on it for
legal research should verify their results against an official edition of
the Federal Register. Until the ACFR grants it official status, the XML
rendition of the daily Federal Register on FederalRegister.gov does not
provide legal notice to the public or judicial notice to the courts.

Legal Status

Rule

Airworthiness Directives; Airbus Helicopters

A Rule by the Federal Aviation Administration on 03/10/2026

• 1.

1.

• Document Details Published Content - Document Details Agencies Department of Transportation Federal Aviation Administration Agency/Docket Numbers Docket No. FAA-2026-2290 Project Identifier MCAI-2025-01833-R Amendment 39-23282 AD 2026-05-09 CFR 14 CFR 39 Document Citation 91 FR 11446 Document Number 2026-04614 Document Type Rule Pages 11446-11449
  (4 pages) Publication Date 03/10/2026 RIN 2120-AA64 Published Content - Document Details

• PDF Official Content

  • View printed version (PDF) Official Content

• Document Details Published Content - Document Details Agencies Department of Transportation Federal Aviation Administration Agency/Docket Numbers Docket No. FAA-2026-2290 Project Identifier MCAI-2025-01833-R Amendment 39-23282 AD 2026-05-09 CFR 14 CFR 39 Document Citation 91 FR 11446 Document Number 2026-04614 Document Type Rule Pages 11446-11449
  (4 pages) Publication Date 03/10/2026 RIN 2120-AA64 Published Content - Document Details

• Document Dates Published Content - Document Dates Effective Date 2026-03-25 Dates Text This AD is effective March 25, 2026. Published Content - Document Dates

• Table of Contents Enhanced Content - Table of Contents This table of contents is a navigational tool, processed from the
  headings within the legal text of Federal Register documents.
  This repetition of headings to form internal navigation links
  has no substantive legal effect.

  • AGENCY:
  • ACTION:
  • SUMMARY:
  • DATES:
  • ADDRESSES:
  • FOR FURTHER INFORMATION CONTACT:
  • SUPPLEMENTARY INFORMATION:
  • Comments Invited
  • Confidential Business Information
  • Background
  • Material Incorporated by Reference Under 1 CFR Part 51
  • FAA's Determination
  • AD Requirements
  • Differences Between This AD the MCAI and the Material Referenced
  • Explanation of Required Compliance Information
  • Justification for Immediate Adoption and Determination of the Effective Date
  • Regulatory Flexibility Act
  • Costs of Compliance
  • Authority for This Rulemaking
  • Regulatory Findings
  • List of Subjects in 14 CFR Part 39
  • The Amendment
  • PART 39—AIRWORTHINESS DIRECTIVES
  • (a) Effective Date
  • (b) Affected ADs
  • (c) Applicability
  • (d) Subject
  • (e) Unsafe Condition
  • (f) Compliance
  • (g) Requirements
  • (h) Exceptions to EASA AD 2025-0287
  • (i) No Reporting Requirement
  • (j) Special Flight Permits
  • (k) Alternative Methods of Compliance (AMOCs)
  • (l) Additional Information
  • (m) Material Incorporated by Reference Enhanced Content - Table of Contents

• Public Comments Enhanced Content - Public Comments This feature is not available for this document.

Enhanced Content - Public Comments
- Regulations.gov Data Enhanced Content - Regulations.gov Data Additional information is not currently available for this document.

Enhanced Content - Regulations.gov Data

- Sharing Enhanced Content - Sharing Shorter Document URL https://www.federalregister.gov/d/2026-04614 Email Email this document to a friend Enhanced Content - Sharing

• Print Enhanced Content - Print
  • Print this document Enhanced Content - Print
• Other Formats Enhanced Content - Other Formats This document is also available in the following formats:

JSON Normalized attributes and metadata XML Original full text XML MODS Government Publishing Office metadata More information and documentation can be found in our developer tools pages.

Enhanced Content - Other Formats
- Public Inspection Public Inspection This PDF is FR Doc. 2026-04614 as it appeared on Public Inspection on
03/09/2026 at 8:45 am.

It was viewed
18
times while on Public Inspection.

If you are using public inspection listings for legal research, you
should verify the contents of the documents against a final, official
edition of the Federal Register. Only official editions of the
Federal Register provide legal notice of publication to the public and judicial notice
to the courts under 44 U.S.C. 1503 & 1507. Learn more here.

Public Inspection
Published Document: 2026-04614 (91 FR 11446) This document has been published in the Federal Register. Use the PDF linked in the document sidebar for the official electronic format.

Document Headings Document headings vary by document type but may contain
the following:

1. the agency or agencies that issued and signed a document
2. the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to
3. the agency docket number / agency internal file number
4. the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details.

Department of Transportation

Federal Aviation Administration

1. 14 CFR Part 39
2. [Docket No. FAA-2026-2290; Project Identifier MCAI-2025-01833-R; Amendment 39-23282; AD 2026-05-09]
3. RIN 2120-AA64

AGENCY:

Federal Aviation Administration (FAA), DOT.

ACTION:

Final rule; request for comments.

SUMMARY:

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. This AD was prompted by a report of a broken hose of the draining system in the rear cargo compartment due to hot air leakage from an engine combustion chamber drain valve failure. This AD requires for certain helicopters operational inspections (checks) of each engine drain valve, inspection of each affected rear cargo compartment hose (hose), installation and repetitive inspections of thermal papers, and depending on the results of those inspections, corrective actions. This AD also requires for certain helicopters, inspection of the rear cargo compartment hoses in conjunction with the initial operational inspections (checks) and, depending on the results of the inspections, performing corrective actions. Additionally, this AD prohibits installing an affected hose on any helicopter unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

DATES:

This AD is effective March 25, 2026.

The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of March 25, 2026.

The FAA must receive comments on this AD by April 24, 2026.

ADDRESSES:

You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:

• Federal eRulemaking Portal: Go to regulations.gov. Follow the instructions for submitting comments.
• Fax: (202) 493-2251.
• Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590.
• Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA-2026-2290; 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

• For European Union Aviation Safety Agency (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: 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, ( printed page 11447) call (817) 222-5110. It is also available at regulations.gov under Docket No. FAA-2026-2290.

FOR FURTHER INFORMATION CONTACT:

Evan Weaver, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (316) 944-8910; email: evan.p.weaver@faa.gov.

SUPPLEMENTARY INFORMATION:

Comments Invited

The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments using a method listed under ADDRESSES. Include “Docket No. FAA-2026-2290; Project Identifier MCAI-2025-01833-R” 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 Evan Weaver, 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 AD 2025-0287, dated December 17, 2025 (EASA AD 2025-0287) (also referred to as the MCAI), to correct an unsafe condition on all Airbus Helicopters Model AS 355 E, AS 355 F, AS 355 F1, AS 355 F2, AS 355 N, and AS 355 NP helicopters. The MCAI states that there was a report where the hose of the draining system was found broken in the rear cargo compartment, and the engine combustion chamber drain valve was blocked in the open position. This resulted in an emergency landing due to a smoke event in the cabin. The MCAI further states subsequent investigation revealed that the hose cannot withstand high temperature, in cases of hot air leakage, due to failure of the engine drain valve.

The FAA is issuing this AD to prevent failure of the rear cargo compartment hoses. The unsafe condition, if not addressed, could result in an uncontrolled fire in the cargo compartment, reduced control of the helicopter, and possible loss of control of the helicopter.

You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA-2026-2290.

Material Incorporated by Reference Under 1 CFR Part 51

The FAA reviewed EASA AD 2025-0287, which specifies procedures for certain helicopters for performing operational inspections (checks) of each engine drain valve, inspection of each affected hose (right-side and left-side), part number (P/N) 350A21010123 (manufacturer P/N 350A21-0101-23), installation of thermal paper on each drain pipe, and for certain helicopters repetitive operational inspections (checks) of each engine drain valve, and inspection of each affected hose in conjunction with the initial operational inspection (check). Depending on the results of these inspections, EASA AD 2025-0287 specifies procedures for corrective actions, which include installation of silicone tape on the hose, replacement of an affected hose, replacement of the drain pipe, visual inspection of the thermal paper, repetitive operational inspections (checks), and replacement of the thermal paper.

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 civil aviation authority (CAA) 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, that authority 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 EASA AD 2025-0287, described previously, as incorporated by reference, except for any differences identified as exceptions in the regulatory text of this AD. See “Differences Between this AD and the MCAI” for a discussion of the general differences included in this AD.

The owner/operator (pilot) holding at least a private pilot certificate may perform a visual check of both sides of the thermal paper and must enter compliance with this requirement into the helicopter maintenance records in accordance with 14 CFR 43.9(a) and 14 CFR 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. The pilot may perform these actions because they only involve a visual check of the thermal paper and no maintenance or material is required to perform this check. This action could be performed equally well by a pilot or mechanic.

Differences Between This AD the MCAI and the Material Referenced

Where the MCAI and the material referenced in EASA AD 2025-0287 specify to perform operational checks or to perform certain checks, this AD refers to this as inspections, except the visual check of the thermal paper.

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 been coordinating this process with manufacturers and CAAs. As a result, EASA AD 2025-0287 is incorporated by reference in this AD. This AD requires compliance with EASA AD 2025-0287 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 EASA AD 2025-0287 does not mean that operators need comply only with that ( printed page 11448) 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 2025-0287. Material required by EASA AD 2025-0287 for compliance will be available at regulations.gov under Docket No. FAA-2026-2290 after this AD is published.

Justification for Immediate Adoption and Determination of the Effective Date

Section 553(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 occurrence that prompted the MCAI resulted in an emergency landing due to a smoke event in the cabin. The FAA has found that the risk to the flying public justifies forgoing notice and comment prior to adoption of this rule because failure of the rear cargo compartment hose due to high temperature from hot air leakage increases the risk of undetected and uncontrolled fire, which could result in loss of the helicopter.

Additionally, the compliance times for the operational checks, hose inspection, and installation of thermal paper based on usage would average to about four months. This compliance time is shorter than the time necessary for the public to comment and for publication 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 36 helicopters of U.S. registry.

The FAA estimates the following costs to comply with this AD:

| Action | Labor cost | Parts cost | Cost per
product | Cost on U.S. operators |
| --- | --- | --- | --- | --- |
| Inspect engine drain valve, hoses, and install thermal paper on drain pipe (Model AS355N and AS355NP helicopters) | 2 work-hours × $85 per hour = $170 | $20 | $190 | $6,840 |
| Replace thermal paper (Model AS355N and AS355NP helicopters) | 1 work-hour × $85 per hour = $85 | 38 | 123 | 4,428 |
| Inspect thermal paper (Model AS355N and AS355NP helicopters) | 1 work-hour × $85 per hour = $85 | 0 | 85 | 3,060 |
| Install silicone tape (Model AS355N and AS355NP helicopters) | 1 work-hour × $85 per hour = $85 | 17 | 102 | 3,672 |
| Inspect engine drain valve and hoses (Model AS355E, AS355F, AS355F1, and AS355F2 helicopters) | 1 work-hour × $85 per hour = $85 | 0 | 85 | 3,060 |
The FAA estimates the following costs to do any repairs or replacements that would be required based on the results of the inspection. The agency has no way of determining the number of helicopters that might need these repairs or replacements:

| Action | Labor cost | Parts cost | Cost per
product |
| --- | --- | --- | --- |
| Inspect engine drain valve, replace hose, and install silicone tape and thermal paper (Model AS355N and AS355NP helicopters) | 3 work-hours × $85 per hour = $255 | $647 | $902 |
| Replace hose, and install silicone tape (Model AS355N and AS355NP helicopters) | 2 work-hours × $85 per hour = $170 | 609 | 779 |
| Replace hose, install silicone tape, and replace drain pipe (Model AS355E, AS355F, AS355F1, and AS355F2 helicopters) | 3 work-hours × $85 per hour = $255 | 1,065 | 1,320 |

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 ( printed page 11449) 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

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:

2026-05-09 Airbus Helicopters: Amendment 39-23282; Docket No. FAA-2026-2290; Project Identifier MCAI-2025-01833-R.

(a) Effective Date

This airworthiness directive (AD) is effective March 25, 2026

(b) Affected ADs

None.

(c) Applicability

This AD applies to all Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters, certificated in any category.

(d) Subject

Joint Aircraft System Component (JASC) Code 7170, Powerplant/Engine Drains.

(e) Unsafe Condition

This AD was prompted by a report of a broken hose of the draining system in the rear cargo compartment due to hot air leakage from an engine combustion chamber drain valve failure. The FAA is issuing this AD to prevent failure of the rear cargo compartment hoses. The unsafe condition, if not addressed, could result in an uncontrolled fire in the cargo compartment, reduced control of the helicopter, and possible loss of control of the helicopter.

(f) Compliance

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

(g) Requirements

(1) Except as specified in paragraphs (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 AD 2025-0287, dated December 17, 2025 (EASA AD 2025-0287).

(2) The owner/operator (pilot) holding at least a private pilot certificate may perform a visual check of both sides of the thermal paper and must enter compliance with this requirement into the helicopter maintenance records in accordance with 14 CFR 43.9(a) and 14 CFR 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439.

(h) Exceptions to EASA AD 2025-0287

(1) Where EASA AD 2025-0287 refers to its effective date, this AD requires using the effective date of this AD.

(2) Where EASA AD 2025-0287 specifies compliance in terms of flight hours, this AD requires using hours time-in-service.

(3) Where paragraph (6) of EASA AD 2025-0287 specifies “accomplish a visual inspection of those thermal papers in accordance with the instructions of the ASB”, this AD requires replacing that text with “accomplish a visual check of those thermal papers for any colored boxes, and if one or more boxes are found colored, before further flight, a licensed mechanic authorized under 14 CFR part 43 must perform the corrective actions specified in paragraph (7) of EASA AD 2025-0287”.

(4) Where the material referenced in EASA AD 2025-0287 specifies discarding parts, this AD requires removing those parts from service.

(5) Where the material referenced in EASA AD 2025-0287 specifies “check” this AD requires replacing that text with “inspect”, except for the visual check (inspection) of the thermal papers, after the last flight of each day.

(6) Where the material referenced in EASA AD 2025-0287 specifies “new”, this AD requires replacing that text with “new (never previously installed)”.

(7) This AD does not adopt “Note 1” or the “Remarks” section of EASA AD 2025-0287.

(i) No Reporting Requirement

Although the material referenced in EASA AD 2025-0287 specifies to submit certain information to the manufacturer, this AD does not require that action.

(j) Special Flight Permits

Special flight permits are prohibited.

(k) 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 (l) 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.

(l) Additional Information

For more information about this AD, contact Evan Weaver, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (316) 944-8910; email: evan.p.weaver@faa.gov.

(m) Material Incorporated by Reference

(1) The Director of the Federal Register approved the incorporation by reference of the material listed in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.

(2) You must use this material as applicable to do the actions required by this AD, unless the AD specifies otherwise.

(i) European Union Aviation Safety Agency (EASA) AD 2025-0287, dated December 17, 2025.

(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: easa.europa.eu. You may find the EASA material on the EASA website at ad.easa.europa.eu.

(4) You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, Fort Worth, TX 76177. 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 March 2, 2026.

Steven W. Thompson,

Acting Deputy Director, Compliance & Airworthiness Division, Aircraft Certification Service.

[FR Doc. 2026-04614 Filed 3-9-26; 8:45 am]

BILLING CODE 4910-13-P

Published Document: 2026-04614 (91 FR 11446)