Home/Federal/Federal Register/2026-19561

Proposed Rule2026-19561

Airworthiness Directives; 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

September 24, 2026

Issuing agencies

Transportation DepartmentFederal Aviation Administration

Abstract

The FAA is revising a notice of proposed rulemaking (NPRM) that would have applied to certain Bombardier, Inc., Model BD-700-2A12 airplanes. This action revises the NPRM by citing new material required for the revision of the existing maintenance or inspection program. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is requesting comments on this SNPRM.

Full Text

<html>
<head>
<title>Federal Register, Volume 91 Issue 184 (Thursday, September 24, 2026)</title>
</head>
<body><pre>
[Federal Register Volume 91, Number 184 (Thursday, September 24, 2026)]
[Proposed Rules]
[Pages 60525-60530]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2026-19561]

=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2025-2277; Project Identifier MCAI-2023-00733-T]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Supplemental notice of proposed rulemaking (SNPRM).

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

SUMMARY: The FAA is revising a notice of proposed rulemaking (NPRM)
that would have applied to certain Bombardier, Inc., Model BD-700-2A12
airplanes. This action revises the NPRM by citing new material required
for the revision of the existing maintenance or inspection program. The
FAA is proposing this airworthiness directive (AD) to address the
unsafe condition on these products. Since these actions would impose an
additional burden over those in the NPRM, the FAA is requesting
comments on this SNPRM.

DATES: The FAA must receive comments on this SNPRM by October 26, 2026.

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 <a href="http://regulations.gov">regulations.gov</a>. 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 <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-2277; 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 SNPRM, 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 Bombardier material identified in this proposed AD,
contact Bombardier Business Aircraft Customer Response Center, 400
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada;
telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#ef8e8cc1969a83af8e8a9d80c1d38ecf879d8a89d2" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website
<a href="http://bombardier.com">bombardier.com</a>.
<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.

FOR FURTHER INFORMATION CONTACT: Fatin Saumik, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
phone: 516-228-7300; email: <a href="/cdn-cgi/l/email-protection#e0d9cd819693cd8e9981838fcd838f93a0868181ce878f96">[email&#160;protected]</a>.

SUPPLEMENTARY INFORMATION:

Comments Invited

The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments using a method listed
under the ADDRESSES section. Include

[[Page 60526]]

``Docket No. FAA-2025-2277; Project Identifier MCAI-2023-00733-T'' at
the beginning of your comments. The most helpful comments reference a
specific portion of the proposal, 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 proposal
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
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this SNPRM.

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 SNPRM 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 SNPRM, 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 SNPRM. Submissions containing CBI should
be sent to Fatin Saumik, Aviation Safety Engineer, FAA, 1600 Stewart
Avenue, Suite 410, Westbury, NY 11590; phone: 516-228-7300; email: <a href="/cdn-cgi/l/email-protection#586175392e2b753621393b37753b372b183e3939763f372e">[email&#160;protected]</a>. Any commentary that the FAA receives which is
not specifically designated as CBI will be placed in the public docket
for this rulemaking.

Background

The FAA issued an NPRM to amend 14 CFR part 39 by adding an AD that
would have applied to all Bombardier, Inc., Model BD-700-2A12
airplanes. The NPRM was published in the Federal Register on September
9, 2025 (90 FR 43400). The NPRM was prompted by Transport Canada AD CF-
2023-38, dated June 1, 2023 (Transport Canada AD CF-2023-38), issued by
Transport Canada, which is the aviation authority for Canada. Transport
Canada AD CF-2023-38 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 new or
more restrictive airworthiness limitations.

Actions Since the NPRM Was Issued

Since the FAA issued the NPRM, Transport Canada superseded
Transport Canada AD CF-2023-38 and issued Transport Canada AD CF-2023-
38R1, dated November 13, 2025 (Transport Canada AD CF-2023-38R1) (also
referred to as the MCAI), to correct an unsafe condition for certain
Model BD-700-2A12 airplanes. The MCAI states that the applicability was
revised to limit the affected airplanes by excluding airplanes on which
the intent of Transport Canada AD CF-2023-38 is incorporated in
production and therefore are not affected by the unsafe condition.
The FAA is proposing this AD to address reduced structural
integrity of the airplane and reduced controllability of the airplane.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-2277.

Comments

The FAA received comments from an anonymous commenter who supported
the NPRM without change and three anonymous commenters who supported
the NPRM but had additional comments.
The FAA received additional comments from Bombardier, The Citizens
Rulemaking Alliance, NetJets, and three anonymous commenters. The
following presents the comments received on the NPRM and the FAA's
response to each comment.

Request for Service Information

NetJets requested that the FAA explain how operators can comply
with the cited material: Bombardier Global 7500 Revision Submission,
RS-BD700-2A12-052, dated May 7, 2025. NetJets stated it received a
response from Bombardier Maintenance Programs and Planning explaining
that Bombardier Global 7500 Revision Submission, RS-BD700-2A12-052,
dated May 7, 2025; is not provided to operators as it is an internal
document.
Bombardier also commented that Bombardier Global 7500 Revision
Submission, RS-BD700-2A12-052, is not yet published and will not be
available to operators. Bombardier stated that the RS-BD700-2A12-052
contents will be published in the next airworthiness limitations
manual.
The FAA acknowledges that Bombardier Global 7500 Revision
Submission, RS-BD700-2A12-052, dated May 7, 2025, will not be available
to operators. However, Bombardier has issued Bombardier Global 7500/
8000 Airworthiness limitations BD700-3AB48-11400-01, Issue No. 024,
dated December 15, 2025, which includes the same additional mandatory
maintenance tasks (AMMTs) as those specified in Bombardier Global 7500
Revision Submission, RS-BD700-2A12-052, dated May 7, 2025.
Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025, will be incorporated
by reference and available in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-2277 when the final rule is published.
The FAA has revised paragraph (g)(1) of this proposed AD to refer
to Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025, for incorporating
AMMTs. The FAA has also revised paragraph (g)(2) of this proposed AD to
provide an option to incorporate all applicable airworthiness
limitations specified in Bombardier Global 7500/8000 Airworthiness
limitations BD700-3AB48-11400-01, Issue No. 024, dated December 15,
2025.

Request To Allow Later Revisions

An anonymous commenter requested that the FAA permit operators to
adhere to the most recent iterations of Bombardier's Time Limits/
Maintenance Checks (TLMC). manuals if more stringent safety regulations
are included in those updates. The commenter stated that operators
might have to hold off on implementing updated procedures until after
another AD. The commenter stated that adopting the most recent safety
data more quickly and in accordance with contemporary safety management
principles would be facilitated by permitting the use of future
revisions and would improve efficiency and safety. The commenter noted
that Bombardier frequently updates its maintenance programs to reflect
new findings.
The FAA cannot allow the use of future revisions because the agency
may not refer to any document that does not yet exist in an AD. In
general terms, the FAA is required by Office of the Federal Register
(OFR) regulations for approval of materials incorporated by reference,
as specified in 1 CFR 51.1(f), to either publish the service document
contents as part of the actual AD language; or submit the service
document to the OFR for approval as referenced material, in which case
the FAA may only refer to

[[Page 60527]]

such material in the text of an AD. The AD may refer to the service
document only if the OFR approved it for incorporation by reference.
See 1 CFR part 51.
To allow operators to use later revisions of the referenced
document (issued after publication of the AD), either the FAA must
revise the proposed AD to reference specific later revisions, or
operators must request approval to use later revisions as an
alternative method of compliance with this proposed AD under the
provisions of paragraph (i)(1) of this proposed AD. As stated
previously, the FAA has revised paragraph (g)(2) of this proposed AD to
allow the use of a later revision of the airworthiness limitations
document.

Request To Include the Cost Savings

An anonymous commenter requested that the FAA include the average
repair costs that would occur if preventative or frequent maintenance
is not done. The commenter stated that the cost of updating an
operator's maintenance/inspection program to adopt the latest
airworthiness limitations ($7,650) is the practical choice when
considering the cost of repairs without preventive maintenance. The
commenter also stated that the NPRM did not quantify the risk
associated with the unsafe condition, so operators may see the proposed
regulation as lacking a clear cost benefit argument.
The FAA cannot quantify the safety cost savings for this proposed
AD. However, the FAA has estimated the proposed AD's compliance cost
impact in response to another commenter (see Request to Consider Impact
on Small Entities), which determined that this proposed AD would not
have a significant impact on a substantial number of the affected
operators. Further, the FAA has determined that an unsafe condition
exists and therefore the actions required by this proposed AD must be
done.

Request for Guidance

An anonymous commenter requested the FAA give clear guidance or a
standard template for updating the maintenance procedures. The
commenter stated this would make it easier for airlines to follow the
rules correctly and reduce mistakes. The commenter also noted that
meeting the new requirements in stages could help airlines handle costs
and training without causing delays. The commenter concluded these
changes would make the proposed AD easier to implement while keeping
flights safe.
The FAA disagrees that guidance on revising the maintenance or
inspection program is needed. Operators may accomplish the maintenance
or inspection program revision using their own procedures, which vary
among operators. The FAA has not revised this proposed 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 and stay the
effective date while soliciting comments. The commenter asserted the
FAA has not adequately justified use of the good cause exemption to
bypass notice and comment and the 30-day delayed effective date.
The FAA notes the comment was submitted in response to an NPRM for
which the FAA provided a 45-day comment period. This SNPRM also
provides a 30-day comment period. Therefore, no change to this proposed
AD is necessary.

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

The Citizens Rulemaking Alliance requested that the FAA make IBR
material available and free to the public during the comment period.
The commenter asserted that this AD incorporates by reference
proprietary service information that is not reasonably available to the
public.
The FAA's practices comply with 5 U.S.C. 552(a) of the
Administrative Procedure Act and 1 CFR part 51. The FAA makes IBR
materials available in the AD docket when the final rule is published
in the Federal Register, following formal approval of the IBR by the
Office of the Federal Register. Materials may only be posted before the
final rule's publication if they are already publicly available or if
there is written consent from the owner of the IBR material. All
relevant materials incorporated by reference will be accessible in the
AD docket on Regulations.gov, which the public can access without
registration or fees.
The FAA also provides summaries and access details in the preamble
and regulatory text, makes materials available for inspection at FAA
and National Archives and Records Administration (NARA) offices, offers
publisher contact information, and obtains formal IBR approval from the
Office of the Federal Register. These efforts are intended to ensure
that all IBR materials meet the ``reasonably available'' standard
required by 1 CFR part 51. The FAA did not change this proposed AD as a
result of this comment.

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 or clarify
that no reporting is required. The commenter stated that the PRA
requires providing the applicable OMB control number(s), required PRA
statements, and burden estimates in the AD and docket.
The FAA notes this proposed 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 proposed 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.
The FAA identified the primary North American Industry
Classification System (NAICS) industry of each entity or each entity's
parent company and then used data from different sources (e.g., company
annual reports, Bureau of Transportation Statistics) to determine
whether the entity meets the applicable size standard. The following
table provides the Small Business Association (SBA) size standards for
all industries

[[Page 60528]]

with at least 1 impacted relevant entity and the estimated number of
affected small entities within each NAICS industry.

Small Business Size Standards and Number of Entities \1\
----------------------------------------------------------------------------------------------------------------
Percent
NAICS code Description Size standard Entities Small small
entities entities
----------------------------------------------------------------------------------------------------------------
336611............... Ship Building and 1,300 employees................... 1 0 0
Repairing.
454110............... Electronic Shopping $47.0 million..................... 1 0 0
and Mail-Order
Houses.
481211............... Nonscheduled 1,500 employees................... 9 9 100
Chartered Passenger
Air Transportation.
522110............... Commercial Banking.. $850 million in assets............ 1 0 0
522299............... International, $47.0 million..................... 1 0 0
Secondary Market,
and All Other
Nondepository
Credit
Intermediation.
523910............... Miscellaneous $47.0 million..................... 1 1 100
Intermediation.
524126............... Direct Property and 1,500 employees................... 2 0 0
Casualty Insurance
Carriers.
541110............... Offices of Lawyers.. $15.5 million..................... 1 0 0
541614............... Process, Physical $20.0 million..................... 1 0 0
Distribution and
Logistics
Consulting Services.
--------------------------------
Total............ .................... .................................. 18 10 56
----------------------------------------------------------------------------------------------------------------
\1\ Sources: U.S. SBA, Table of Small Business Size Standards (2023). <a href="http://sba.gov">sba.gov</a>; Dun & Bradstreet D&B Hoovers,
retrieved August 11, 2026. <a href="http://app.hoovers.dnb.com">app.hoovers.dnb.com</a>; Zoominfo, retrieved August 11, 2026. <a href="http://zoominfo.com">zoominfo.com</a>.

While the FAA has determined this proposed AD affects a substantial
number of small entities, the compliance cost of the proposed AD is
minimal relative to each small entity's annual revenue. The proposed
AD's $7,650 per-entity cost as a percentage of annual revenue imposes a
burden no greater than 1.7%. Therefore, as provided in section 605(b),
the FAA certifies this proposed AD will not result in a significant
economic impact on a substantial number of small entities. The FAA did
not change this proposed AD as a result of this comment. The table
below displays the cost impact of the proposed AD on all 10 small
entities.

Average Annualized Cost of Compliance per Small Entity \1\
----------------------------------------------------------------------------------------------------------------
Small Average Average cost as a Range of cost as a
NAICS industry entities revenue percent of revenue percent of revenue
----------------------------------------------------------------------------------------------------------------
Miscellaneous Intermediation................ 1 $1,930,000 0.4 0.4-0.4
Nonscheduled Chartered Passenger Air 9 23,535,381 0.3 0.0-1.7
Transportation.............................
----------------------------------------------------------------------------------------------------------------
\1\ Sources: US SBA, Table of Small Business Size Standards (2023). <a href="http://sba.gov">sba.gov</a>; Dun & Bradstreet D&B Hoovers,
retrieved August 11, 2026. <a href="http://app.hoovers.dnb.com">app.hoovers.dnb.com</a>; Zoominfo, retrieved August 11, 2026. <a href="http://zoominfo.com">zoominfo.com</a>.

Request To Provide Additional Cost Information

The Citizens Rulemaking Alliance requested that the FAA add to the
AD docket the data supporting its cost estimate, including assumptions
about labor, parts availability, airplane downtime, and fleet size and
confirm and explain the FAA's determination that the AD is not
significant under Executive Order 12866.
The FAA notes that in preamble of the proposed AD, the FAA
certified that this regulation is not a ``significant regulatory
action'' under Executive Order 12866, which means, in part, that the
regulation will not have an annual effect on the economy of $100
million or more. Further, in the Costs of Compliance section of the
proposed AD, the FAA disclosed the number of affected airplanes on the
U.S. registry, estimated number of work hours to comply with the
proposed AD, and the aggregate costs. The work-hour estimate is the
based on a survey of transport operators, which found that the mean
average is 90 work-hours to revise an operator's maintenance or
inspection program. Parts availability is not considered in the cost
estimate because this proposed AD does not require any airplane parts.
Further, the FAA has determined that the current labor rate of $85
per hour remains accurate for this proposed AD. The FAA evaluates this
rate periodically, based on U.S. Department of Labor Statistic (BLS)
data found at <a href="https://data.bls.gov/oes">https://data.bls.gov/oes</a>, and will change the rate when
appropriate. The FAA used a blended wage rate to estimate the labor
rate for this proposed AD, where the FAA assumes 60 percent weight for
aircraft mechanics (at a fully burdened mean wage rate of $69.85 per
hour) and 40 percent for general and operations managers (at a fully
burdened mean wage rate of $108.15 per hour). To calculate the blended
wage rate, the FAA multiplied each wage rate by its corresponding
weight and added up the products to obtain a wage rate of $85.17, which
the FAA rounded down to $85.
Since the FAA has assessed and disclosed all known costs of the
proposed 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, the FAA determined that the
existing analysis is complete. Based upon the analysis provided
throughout the proposed AD and in the previous comment response, the
FAA certifies that this proposed AD is not a ``significant regulatory
action'' under Executive Order 12866. The FAA did not change this
proposed AD as a result of this comment.

Explanation of Change to the Applicability

The applicability of the proposed AD specified all Model BD-700-
2A12 airplanes were affected. However, the applicability of this
proposed AD has been revised to exclude airplanes that are not affected
by the unsafe condition. Although the applicability of Transport Canada
AD CF-2023-38R1 specified affected airplane serial numbers, the
applicability of this proposed AD specifies Model BD-700-2A12

[[Page 60529]]

airplanes, except for airplanes on which the information specified in
Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025, or later revisions of
Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025, approved by Transport
Canada, has been incorporated into the existing maintenance or
inspection program, as applicable. The airplanes identified in the
exception meet the intent of the requirements of this proposed AD.

Material Incorporated by Reference Under 1 CFR Part 51

Bombardier Global 7500 Airworthiness Limitations, BD700-3AB48-
11400-01, Issue No. 017, dated February 28, 2023. This service
information specifies new or more restrictive airworthiness limitations
for fuel tank systems, safe life limits, certification maintenance
requirements, and candidate certification maintenance requirements
(CCMRs).
The FAA also reviewed Bombardier Global 7500/8000 Airworthiness
limitations BD700-3AB48-11400-01, Issue No. 024, dated December 15,
2025. This service information specifies airworthiness limitations,
which includes new airworthiness limitations identified as AMMTs, which
replace the CCMRs for the FAA.
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
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 SNPRM
after determining that the unsafe condition described previously is
likely to exist or develop in other products of the same type design.
Certain changes described above expand the scope of the NPRM. As a
result, it is necessary to reopen the comment period to provide
additional opportunity for the public to comment on this SNPRM.

Proposed AD Requirements in This SNPRM

This proposed AD would require revising the existing maintenance or
inspection program, as applicable, to incorporate new or more
restrictive airworthiness limitations.

Costs of Compliance

The FAA estimates that this proposed AD affects 58 airplanes of
U.S. registry. The FAA estimates the following costs to comply with
this proposed AD:
The FAA has determined that revising the maintenance or inspection
program takes an average of 90 work-hours per operator, although the
agency recognizes that this number may vary from operator to operator.
Since operators incorporate maintenance or inspection program changes
for their affected fleet(s), the FAA has determined that a per-operator
estimate is more accurate than a per-airplane estimate. Therefore, the
agency estimates the average total cost per operator to be $7,650 (90
work-hours x $85 per work-hour).

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

The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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 Proposed Amendment

Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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:

Bombardier, Inc.: Docket No. FAA-2025-2277; Project Identifier MCAI-
2023-00733-T.

(a) Comments Due Date

The FAA must receive comments on this airworthiness directive
(AD) by October 26, 2026.

(b) Affected ADs

None.

This AD applies to Bombardier, Inc., Model BD-700-2A12
airplanes, certificated in any category, except for airplanes on
which the information specified in Bombardier Global 7500/8000
Airworthiness limitations BD700-3AB48-11400-01, Issue No. 024, dated
December 15, 2025, or later revisions of Bombardier Global 7500/8000
Airworthiness limitations BD700-3AB48-11400-01, Issue No. 024, dated
December 15, 2025, approved by Transport Canada, has been
incorporated into the existing maintenance or inspection program, as
applicable.

(d) Subject

Air Transport Association (ATA) of America Code 05, Time Limits/
Maintenance Checks.

(e) Unsafe Condition

This AD was prompted by a determination that new or more
restrictive airworthiness limitations are necessary. The FAA is
issuing this AD to address reduced structural integrity of the
airplane and reduced controllability of the airplane.

(f) Compliance

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

[[Page 60530]]

(g) Maintenance or Inspection Program Revision

Within 90 days after the effective date of this AD, do the
actions specified in paragraph (g)(1) or (2) of this AD.
(1) Revise the existing maintenance or inspection program, as
applicable, to incorporate the information specified in paragraph
(g)(1)(i) and (ii) of this AD. The initial compliance time for doing
the tasks is at the time specified in Bombardier Global 7500
Airworthiness Limitations, BD700-3AB48-11400-01, Issue No. 017,
dated February 28, 2023, and in the ``Additional mandatory
maintenance tasks--General'' section of Bombardier Global 7500/8000
Airworthiness limitations BD700-3AB48-11400-01, Issue No. 024, dated
December 15, 2025, as applicable, or within 90 days after the
effective date of this AD, whichever occurs later.
(i) Bombardier Global 7500 Airworthiness Limitations, BD700-
3AB48-11400-01, Issue No. 017, dated February 28, 2023, except for
the information specified in the ``Candidate CMR Limitations--
General'' section.
(ii) The ``Additional mandatory maintenance tasks--General''
section of Bombardier Global 7500/8000 Airworthiness limitations
BD700-3AB48-11400-01, Issue No. 024, dated December 15, 2025.
(2) Revise the existing maintenance or inspection program, as
applicable, to incorporate the information specified in the
Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025. The initial
compliance time for doing the tasks is at the time specified in
Bombardier Global 7500/8000 Airworthiness limitations BD700-3AB48-
11400-01, Issue No. 024, dated December 15, 2025, or within 90 days
after the effective date of this AD, whichever occurs later.

(h) No Alternative Actions, Intervals, or Critical Design Configuration
Control Limitations (CDCCLs)

After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections), intervals, or CDCCLs may be used unless
the actions, intervals, and CDCCLs are approved as an alternative
method of compliance (AMOC) in accordance with the procedures
specified in paragraph (i)(1) of this AD.

(i) Additional AD Provisions

The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Validation Branch, FAA, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19. In accordance with 14 CFR 39.19, send your request to your
principal inspector or responsible Flight Standards Office, as
appropriate. If sending information directly to the manager of the
International Validation Branch, send it to the attention of the
person identified in paragraph (j) of this AD and email to:
<a href="/cdn-cgi/l/email-protection#fcbdb1b3bfbc9a9d9dd29b938a">[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, International
Validation Branch, FAA; or Transport Canada; or Bombardier, Inc.'s
Transport Canada Design Approval Organization (DAO). If approved by
the DAO, the approval must include the DAO-authorized signature.

(j) Additional Information

For more information about this AD, contact Fatin Saumik,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; phone: 516-228-7300; email: <a href="/cdn-cgi/l/email-protection#3f06125e494c1251465e5c50125c504c7f595e5e11585049">[email&#160;protected]</a>.

(k) 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) Bombardier Global 7500 Airworthiness Limitations, BD700-
3AB48-11400-01, Issue No. 017, dated February 28, 2023.
(ii) Bombardier Global 7500/8000 Airworthiness limitations
BD700-3AB48-11400-01, Issue No. 024, dated December 15, 2025.
(3) For Bombardier material identified in this AD, contact
Bombardier Business Aircraft Customer Response Center, 400
C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9, Canada;
telephone 514-855-2999; email <a href="/cdn-cgi/l/email-protection#4d2c2e633438210d2c283f2263712c6d253f282b70" http: bombardier.com">bombardier.com</a>">ac.yul@aero.<a href="http://bombardier.com">bombardier.com</a></a>; website
<a href="http://bombardier.com">bombardier.com</a>.
(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#2543570b4c4b56554046514c4a4b654b4457440b424a53">[email&#160;protected]</a>.

Issued on September 21, 2026.
Hollister B. Thorson,
Acting Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2026-19561 Filed 9-23-26; 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 September 24, 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.