Home/Federal/Federal Register/2026-10489

Rule2026-10489

Airworthiness Directives; Airbus Canada Limited Partnership (Type Certificate Previously Held by C Series Aircraft Limited Partnership (CSALP); Bombardier, Inc.) Airplanes

Primary source

Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.

Published

May 27, 2026

Effective

July 1, 2026

Issuing agencies

Transportation DepartmentFederal Aviation Administration

Abstract

The FAA is adopting a new airworthiness directive (AD) for all Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. This AD was prompted by certification testing that found that environmental control system (ECS) ducts manufactured using a certain material failed the flammability test requirements established for compliance. This AD requires inspecting the affected ECS ducts, installing a fire-resistant sleeve assembly over any non-compliant ECS duct as applicable, and re-identifying the ceiling panel liners. This AD also prohibits the installation of ECS ducts as replacement parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.

Full Text

<html>
<head>
<title>Federal Register, Volume 91 Issue 101 (Wednesday, May 27, 2026)</title>
</head>
<body><pre>
[Federal Register Volume 91, Number 101 (Wednesday, May 27, 2026)]
[Rules and Regulations]
[Pages 31345-31349]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-10489]

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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2025-0199; Project Identifier MCAI-2024-00332-T;
Amendment 39-23350; AD 2026-10-10]
RIN 2120-AA64

Airworthiness Directives; Airbus Canada Limited Partnership (Type
Certificate Previously Held by C Series Aircraft Limited Partnership
(CSALP); Bombardier, Inc.) Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Airbus Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11
airplanes. This AD was prompted by certification testing that found
that environmental control system (ECS) ducts manufactured using a
certain material failed the flammability test requirements established
for compliance. This AD requires inspecting the affected ECS ducts,
installing a fire-resistant sleeve assembly over any non-compliant ECS
duct as applicable, and re-identifying the ceiling panel liners. This
AD also prohibits the installation of ECS ducts as replacement parts
under certain conditions. The FAA is issuing this AD to address the
unsafe condition on these products.

DATES: This AD is effective July 1, 2026.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of July 1,
2026.

ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0199; 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:
<bullet> For Transport Canada material identified in this AD,
contact Transport Canada, Transport Canada National Aircraft
Certification, 159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada;
telephone 888-663-3639; email <a href="/cdn-cgi/l/email-protection#bfebfc91fed6cdc8d0cdcbd7d6d1daccccfbd6cddadccbd6c9dacc92fcd0d1ccd6d8d1daccdbdad1dec9d6d8deddd6d3d6cbda91ebfcffcbdc91d8dc91dcde">[email&#160;protected]</a>. You may find this material on the
Transport Canada website at tc.canada.ca/en/aviation.
<bullet> 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 <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0199.

FOR FURTHER INFORMATION CONTACT: Brenda L. Buitrago, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 516-
288-7368; email: <a href="/cdn-cgi/l/email-protection#b2f0c0d7dcd6d39cfe9cf0c7dbc6c0d3d5dd9ce2d7c0d7c8f2d4d3d39cd5ddc4">[email&#160;protected]</a>.

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 certain Airbus Canada
Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. The
NPRM was published in the Federal Register on February 13, 2025 (90 FR
9526). The NPRM was prompted by Transport Canada AD CF-2024-21, dated
June 6, 2024 (Transport Canada AD CF-2024-21), issued by Transport
Canada, which is the aviation authority for Canada. The MCAI states
that ECS ducts, located on forward and aft cargo compartment ceiling
panels, having part numbers D761189-105, D761189-501, and D762232-509,
have been manufactured using material APF1180-7781, which replaced
discontinued legacy material Solvay L591PG-7781. The material change to
APF1180-7781 was done without changing the ECS duct part number.
Subsequent certification testing of the ECS ducts made using material
APF1180-7781 failed flammability test requirements. These noncompliant
ECS ducts may have been installed on certain affected airplanes during
production. Noncompliant ECS ducts could result in the inability to
contain a fire within the cargo compartment, which could result in an
uncontrolled fire.
In the NPRM, the FAA proposed to require inspecting the affected
ECS ducts and, as applicable, installing a fire-resistant sleeve
assembly over any non-compliant ECS duct, and to prohibit the
installation of ECS ducts as replacement parts under certain
conditions, as specified in Transport Canada AD CF-2024-21.
The FAA issued a supplemental notice of proposed rulemaking (SNPRM)
to amend 14 CFR part 39 by adding an AD that would apply to all Airbus
Canada Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes.
The SNPRM was published in the Federal Register on September 25, 2025
(90 FR 46098). The SNPRM was prompted by Transport Canada AD CF-2025-
10, dated February 27, 2025 (Transport Canada AD CF-2025-10) (also
referred to as the MCAI), which superseded Transport Canada AD CF-2024-
21. Transport Canada AD CF-2025-10 states that since Transport Canada
AD CF-2024-21 was issued, Airbus Canada revised the instructions in
their service information to include a requirement to re-identify the
ceiling panel liners to ensure configuration control. In the SNPRM, the
FAA proposed to require inspecting affected ECS ducts, installing a
fire-resistant sleeve assembly over any non-compliant ECS duct as
applicable, and re-identifying the ceiling panel liners in affected
cargo compartments, and to prohibit the installation of ECS ducts as
replacement parts under certain conditions, as specified in Transport

[[Page 31346]]

Canada AD CF-2025-10. The FAA is issuing this AD to address the unsafe
condition on these products.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0199.

Discussion of Final Airworthiness Directive

Comments

The FAA received a comment from Air Line Pilot Association,
International (ALPA) who supported the SNPRM without change.
The FAA received additional comments from the Citizens Rulemaking
Alliance and JetBlue. The following presents the comments received on
the SNPRM and the FAA's response to each comment.

Request To Except or Delay Compliance for Re-Identification of
Unaffected Parts

JetBlue requested that the FAA add an exception to paragraph (h) of
the proposed AD to specify, where Airbus Canada Limited Partnership
(ACLP) Service Bulletin BD500-501003, Issue 001, dated December 21,
2023 (Issue 001 of the ACLP Service Bulletin); or ACLP Service Bulletin
BD500-501003, Issue 002, dated November 15, 2024 (Issue 002 of the ACLP
Service Bulletin); is used to accomplish Part I of Transport Canada AD
CF-2025-10 before the effective date the AD, only the ``affected and
repaired'' ceiling panel liners in the cargo compartments must be re-
identified using ACLP Service Bulletin BD500-501003, Issue 003, dated
December 18, 2024 (Issue 003 of the ACLP Service Bulletin), or later
revisions. JetBlue added, if the FAA determines unaffected ducts or
liners must also be re-identified, then JetBlue requests that the
unaffected parts be re-identified at the next scheduled heavy
maintenance visit instead of before further flight after the
inspection. JetBlue noted that Issue 001 of the ACLP Service Bulletin
does not specify to re-identify the relevant ECS ducts or ceiling panel
liners, for airplanes determined to not be affected. JetBlue stated if
ECS ducts or ceiling panel liners are found to be affected, a change to
the part number is required because repairs and modification are
necessary to comply with the applicable fireproofing requirements, and
the repairs are considered major changes to ensure continued compliance
with the type certificate. JetBlue further stated, if the ECS ducts and
ceiling panel liners are determined to not be affected, no modification
or repair is performed, and the part re-identification is not necessary
because the inspection and verification are considered minor, and the
type certificate remains valid with amendment.
The FAA disagrees with both requests. The FAA notes that although
Issue 001 of the ACLP Service Bulletin does not specify re-identifying
unaffected ceiling panel liners, Transport Canada AD CF-2025-10
specifies to accomplish the actions in Part I of the Transport Canada
using Issue 003 of the ACLP Service Bulletin, which does require re-
identifying all ceiling panel liners regardless of findings. Re-
identifying the ceiling panel lining provides assurance that an
affected ECS duct has been inspected in compliance with this AD.
However, the FAA will consider requests for an alternative method of
compliance or extension of the compliance time, under the provisions of
paragraph (j)(1) of this AD. The FAA has not changed this AD in this
regard.

Request To Justify Forgoing Notice and Comment or Issue an NPRM

The Citizens Rulemaking Alliance requested that the FAA either
provide its justification for finding good cause to bypass notice and
comment procedures, or convert this action to an NPRM to extend the
comment period. The commenter asserted the FAA has not adequately
justified use of the good cause exemption.
The FAA notes the comment was submitted in response to an NPRM for
which the FAA provided a 45-day comment period. This final rule is
effective 35 days after its publication in the Federal Register.
Therefore, no change to this AD is necessary.

Request To Comply With the Paperwork Reduction Act (PRA)

The Citizens Rulemaking Alliance requested that the FAA revise the
AD to comply with the PRA if reporting is required or remove any
reporting provisions until PRA requirements are satisfied. If reporting
is not required, the commenter requested the FAA clarify that in the
AD.
The FAA notes paragraph (i) of this AD specifies that this AD does
not require reporting. If an AD were to require reporting, the preamble
of the AD would include a paragraph titled ``Paperwork Reduction Act''
that would provide the applicable OMB control number, required PRA
statements, and the estimated time to collect the required information
(burden). Any costs associated with the reporting requirement would be
included in the Costs of Compliance section in the preamble of the AD.
Therefore, the FAA did not change this AD as a result of this comment.

Request To Make Incorporation by Reference (IBR) Materials Reasonably
Available

The Citizens Rulemaking Alliance stated that the FAA's current
practices for IBR frequently fail to meet the legal and regulatory
standards for reasonable availability. The commenter called on the FAA
to guarantee that all IBR materials are easily and freely accessible to
the public and affected parties for both commenting and compliance
purposes. The commenter also requested that this access be documented
in the rulemaking record.
The FAA notes that this AD incorporates by reference Transport
Canada AD CF-2025-10, not the manufacturer service information
referenced in that Transport Canada AD. The FAA posted Transport Canada
AD CF-2025-10 to the AD docket when the NPRM was published in the
Federal Register. The material referenced in Transport Canada AD CF-
2025-10 may only be posted before the final rule's publication if it is
already publicly available or if there is written consent from the
owner of that material. Additionally, the FAA provided notice in the
NPRM that the material referenced in Transport Canada AD CF-2025-10
will be available in the AD docket after this AD is published.
Therefore, the FAA did not change this AD as a result of this comment.

Request To Consider Impact on Small Entities

The Citizens Rulemaking Alliance requested that the FAA either
provide the factual basis for its Regulatory Flexibility Act (RFA)
certification that the AD will not have a significant economic impact
on a substantial number of small entities, or prepare an initial
regulatory flexibility analysis.
The FAA provides the following clarification. The RFA of 1980 (5
U.S.C. 601-612), as amended by the Small Business Regulatory
Enforcement Fairness Act of 1996 (Pub. L. 104-121) and the Small
Business Jobs Act of 2010 (Pub. L. 111-240), requires Federal agencies
to consider the effects of the regulatory action on small business and
other small entities and to minimize any significant economic impact.
The term ``small entities'' comprises small businesses and not-for-
profit organizations that are independently owned and operated and are
not dominant in their fields, and governmental jurisdictions with
populations of less than 50,000.

[[Page 31347]]

The FAA identified three air carriers and one commercial aircraft
lessor that will be affected by this AD. Based on the Small Business
Administration (SBA) size standard, all four entities are large
businesses:

Small Business Size Standards \1\
------------------------------------------------------------------------
NAICS \2\ code Description Size standard
------------------------------------------------------------------------
481111..................... Scheduled Passenger Air 1,500
Transportation. employees.
532411..................... Commercial Air, Rail, and $45.5 million.
Water Transportation
Equipment Rental and
Leasing.
------------------------------------------------------------------------
\1\ Source: <a href="http://sba.gov">sba.gov</a>: Table of Small Business Size Standards.
\2\ North American Industrial Classification System.

If an agency determines that a rulemaking will not result in a
significant economic impact on a substantial number of small entities,
the head of the agency may certify under section 605(b) of the RFA.
Therefore, as provided in section 605(b) and based on the foregoing,
the head of the FAA certifies that this AD will not result in a
significant economic impact on a substantial number of small entities.
The FAA did not change this AD as a result of this comment.

Request To Provide Additional Cost Information

The Citizens Rulemaking Alliance requested that the FAA add to the
AD docket the methodology and assumptions supporting the estimated cost
of the proposed AD and reopen the comment period for public input on
the additional cost information. The commenter stated that the FAA
should also provide the fleet size, per airplane labor and parts cost,
any assumed downtime or out-of-service impacts, aggregate costs, and
any assumption that the manufacturer would provide parts free of
charge.
In the Costs of Compliance section of the proposed AD, the FAA
disclosed the number of airplanes affected on the U.S. registry,
estimated number of work hours provided by the manufacturer, and the
aggregate costs. The FAA did not disclose an estimated parts cost since
this AD does not require any parts. Additionally, the FAA considered
the impact that this AD will have on affected operators and determined
this AD will not trigger any downtime costs because the requirements of
this AD can be performed during regularly scheduled maintenance. Since
the FAA has assessed and disclosed the total known costs of the AD
requirements in the Costs of Compliance section of the proposed AD, and
the commenter did not provide additional cost data for the FAA to
consider in its cost analysis, it is not necessary to reopen the
comment period or provide additional information in the AD docket. The
FAA did not change this AD as a result of this comment.

Conclusion

These products have been approved by the civil 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, that authority has notified the FAA of the unsafe condition
described in the MCAI referenced above. The FAA reviewed the relevant
data, considered any comments received, 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 SNPRM.
None of the changes will increase the economic burden on any operator.

Material Incorporated by Reference Under 1 CFR Part 51

Transport Canada AD CF-2025-10 specifies procedures for inspecting
to determine the lot numbers of affected ECS ducts, installing a fire-
resistant sleeve assembly over any non-compliant ECS duct, and re-
identifying the ceiling panel liners in the cargo compartments.
Transport Canada AD CF-2025-10 also prohibits the installation of ECS
ducts as replacement parts under certain conditions. 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 200 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:

Estimated Costs for Required Actions *
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
12 work-hours x $85 per hour = $0 $1,020 $11,220 *
$1,020...........................
----------------------------------------------------------------------------------------------------------------
* Of the 200 affected airplanes on the U.S. registry, the FAA estimates 11 of those airplanes are subject to the
required inspection and re-identification.

The FAA estimates the following costs to do any necessary on-
condition actions that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need these on-condition actions:

Estimated Costs of On-Condition Retrofit
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product
----------------------------------------------------------------------------------------------------------------
2 work-hours x $85 per hour = $170............................ $4,840 $5,010
----------------------------------------------------------------------------------------------------------------

[[Page 31348]]

The FAA has included all known costs in its cost estimate.
According to the manufacturer, however, some or all of the costs of
this AD may be covered under warranty, thereby reducing the cost impact
on affected operators.

Authority for This Rulemaking

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

Regulatory Findings

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

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:

2026-10-10 Airbus Canada Limited Partnership (Type Certificate
Previously Held by C Series Aircraft Limited Partnership (CSALP);
Bombardier, Inc.): Amendment 39-23350; Docket No. FAA-2025-0199;
Project Identifier MCAI-2024-00332-T.

(a) Effective Date

This airworthiness directive (AD) is effective July 1, 2026.

(b) Affected ADs

None.

This AD applies to all Airbus Canada Limited Partnership Model
BD-500-1A10 and BD-500-1A11 airplanes, certificated in any category.

(d) Subject

Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.

(e) Unsafe Condition

This AD was prompted by certification testing that found that
environmental control system (ECS) ducts manufactured using material
APF1180-7781 failed the flammability test requirements established
for compliance. The FAA is issuing this AD to address noncompliant
ECS ducts that could cause an inability to contain a fire within the
cargo compartment. The unsafe condition, if not addressed, could
result in an uncontrolled fire.

(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-2025-10, dated February 27,
2025 (Transport Canada AD CF-2025-10).

(h) Exception to Transport Canada AD CF-2025-10

(1) Where Transport Canada AD CF-2025-10 refers to its effective
date, this AD requires using the effective date of this AD.
(2) Where Transport Canada AD CF-2025-10 refers to June 20, 2024
(the effective date of Transport Canada AD CF-2024-21), this AD
requires using the effective date of this AD.
(3) Where the first paragraph under Part 1 of Transport Canada
AD CF-2025-10 specifies a compliance time for the inspection and
retrofit, for this AD the compliance time is at the later of the
times specified in paragraphs (h)(3)(i) or (ii) of this AD:
(i) Prior to the accumulation of 9,350 total flight hours or
within 60 months after the effective date of this AD, whichever
occurs first.
(ii) Within 30 days after the effective date of this AD.
(4) Where the Safran material referenced in Transport Canada AD
CF-2025-10 specifies to drill holes, this AD allows identifying and
marking the new locations for the inserts prior to drilling the
holes.
(5) Where the Safran material referenced in Transport Canada AD
CF-2025-10 specifies accomplishing step 3.D.(8) after accomplishing
steps 3.D.(6) and 3.D.(7), this AD allows accomplishing step 3.D.(8)
concurrently with or after step 3.D.(5).
(6) Where the Safran material referenced in Transport Canada AD
CF-2025-10 specifies ``mark the holes position'', this AD requires
replacing that text with ``mark the holes position and drill the
holes''.
(7) Where the second paragraph under Part II of Transport Canada
AD CF-2025-10 specifies ``The use of the Accomplishment Instructions
of Safran Cabin Service Bulletin F493000-50-06 as contained within
Airbus Canada SB BD500-501003 Issue 001, dated 21 December 2023, or
Issue 002, dated November 15, 2024, prior to the effective date of
this AD, also meet the intent of Part II of this AD'', this AD
requires replacing that text with ``The use of the Accomplishment
Instructions of Safran Cabin Service Bulletin F493000-50-06 as
contained within Airbus Canada SB BD500-501003 Issue 001, dated 21
December 2023, or Issue 002, dated November 15, 2024, prior to the
effective date of this AD, also meet the intent of Part II of this
AD, provided the ceiling panel liners in the cargo compartments have
been re-identified in accordance with the procedure in Section 3 of
Part B of the Accomplishment Instructions of the ACLP SB''.

(i) No Reporting Requirement

Although the material referenced in Transport Canada AD CF-2025-
10 specifies to submit certain information to the manufacturer, this
AD does not include that requirement.

(j) Additional AD Provisions

The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, AIR-
520, Continued Operational Safety 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 Continued Operational Safety Branch, send it to the attention of
the person identified in paragraph (k) of this AD and email to:
<a href="/cdn-cgi/l/email-protection#0c4d41434f4c6a6d6d226b637a">[email&#160;protected]</a>. 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, AIR-520,
Continued Operational Safety Branch, FAA; or

[[Page 31349]]

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.
(3) Required for Compliance (RC): Except as required by
paragraphs (i) and (j)(2) of this AD, if any material contains
procedures or tests that are identified as RC, those procedures and
tests must be done to comply with this AD; any procedures or tests
that are not identified as RC are recommended. Those procedures and
tests that are not identified as RC may be deviated from using
accepted methods in accordance with the operator's maintenance or
inspection program without obtaining approval of an AMOC, provided
the procedures and tests identified as RC can be done and the
airplane can be put back in an airworthy condition. Any
substitutions or changes to procedures or tests identified as RC
require approval of an AMOC.

(k) Additional Information

For more information about this AD, contact Brenda L. Buitrago,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 516-288-7368; email: <a href="/cdn-cgi/l/email-protection#4b09392e252f2a650765093e223f392a2c24651b2e392e310b2d2a2a652c243d">[email&#160;protected]</a>.

(l) 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 this AD specifies otherwise.
(i) Transport Canada AD CF-2025-10, dated February 27, 2025.
(ii) [Reserved]
(3) For Transport Canada material identified in this AD, contact
Transport Canada, Transport Canada National Aircraft Certification,
159 Cleopatra Drive, Nepean, Ontario K1A 0N5, Canada; telephone 888-
663-3639; email <a href="/cdn-cgi/l/email-protection#27736409664e55504855534f4e49425454634e554244534e5142540a644849544e4049425443424946514e4046454e4b4e5342097364675344094044094446">[email&#160;protected]</a>; website 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 <a href="http://www.archives.gov/federal-register/cfr/ibr-locations">www.archives.gov/federal-register/cfr/ibr-locations</a> or email <a href="/cdn-cgi/l/email-protection#3b5d49155255484b5e584f5254557b555a495a155c544d">[email&#160;protected]</a>.

Issued on May 11, 2026.
Lona C. Saccomando,
Acting Deputy Director, Integrated Certificate Management
Division,Aircraft Certification Service.
[FR Doc. 2026-10489 Filed 5-26-26; 8:45 am]
BILLING CODE 4910-13-P

</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>

View on FederalRegister.gov →Plain-text source

Indexed from Federal Register on May 27, 2026.

This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.