[Federal Register Volume 90, Number 185 (Friday, September 26, 2025)]
[Rules and Regulations]
[Pages 46330-46338]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2025-18759]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-0616; Project Identifier MCAI-2024-00304-T;
Amendment 39-23122; AD 2025-17-12]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc., Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Bombardier, Inc., Model CL-600-1A11 (600) and CL-600-2A12 (601)
airplanes, and certain Model CL-600-2B16 (601-3A, 601-3R, and 604
Variants) airplanes. This AD was prompted by a determination that new
or more restrictive airworthiness limitations are necessary. This AD
requires revising the existing maintenance or inspection program, as
applicable, to incorporate new or more restrictive airworthiness
limitations. The FAA is issuing this AD
[[Page 46331]]
to address the unsafe condition on these products.
DATES: This AD is effective October 31, 2025.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of October 31,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at regulations.gov under
Docket No. FAA-2025-0616; or in person at Docket Operations between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD
docket contains this final rule, the mandatory continuing airworthiness
information (MCAI), any comments received, and other information. The
address for Docket Operations is U.S. Department of Transportation,
Docket Operations, M-30, West Building, Ground Floor, Room W12-140,
1200 New Jersey Avenue SE, Washington, DC 20590.
Material Incorporated by Reference:
For 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 [email protected]; website https://my.bombardier.com/.
You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the availability of this material at the
FAA, call 206-231-3195. It is also available at regulations.gov under
Docket No. FAA-2025-0616.
FOR FURTHER INFORMATION CONTACT: Brenda L. Buitrago, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
phone: 516-228-7300; email: [email protected].
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Bombardier, Inc.,
Model CL-600-1A11 (600) and CL-600-2A12 (601) airplanes, and certain
Model CL-600-2B16 (601-3A, 601-3R, and 604 Variants) airplanes. The
NPRM was published in the Federal Register on April 11, 2025 (90 FR
15419). The NPRM was prompted by AD CF-2024-16, dated May 23, 2024
(also referred to as the MCAI), issued by Transport Canada, which is
the aviation authority for Canada. The MCAI states that new or more
restrictive airworthiness limitations have been developed.
In the NPRM, the FAA proposed to require revising the existing
maintenance or inspection program, as applicable, to incorporate new or
more restrictive airworthiness limitations. The FAA is issuing this AD
to address new or more restrictive limitations. Failure to comply with
these new or more restrictive limitations could adversely affect the
continued airworthiness of the airplane.
You may examine the MCAI in the AD docket at regulations.gov under
Docket No. FAA-2025-0616.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from Bombardier. The following presents
the comments received on the NPRM and the FAA's response to each
comment.
Request for Changing Reference to Website
Bombardier requested updating the reference to its website because
the customer portal link can be hard to find on some Support and
Customer Services pages. To make access easier, Bombardier recommended
providing a direct secure link to the portal. Furthermore, Bombardier
stated that prefixing the website reference with ``https://'' ensures a
secure connection to the Bombardier customer portal, enhancing security
and helping prevent man-in-the-middle attacks in certain regions.
The FAA agrees with updating the reference to the Bombardier
website. The FAA has changed ``bombardier.com'' to read ``https://my.bombardier.com/'' to ensure a secure connection to the Bombardier
customer portal and that the website is up-to-date and clearly
presented.
Request To Revise ``New and More Restrictive'' Statement
Bombardier requested that the phrase ``new and more restrictive
limitations'' be revised to ``new or more restrictive limitations''
throughout the final rule. Bombardier explained that the phrase ``new
and more restrictive'' could be misinterpreted as applying only to
limitations that are both new and more restrictive, potentially
excluding newly introduced airworthiness limitation (AWL) tasks that
are not necessarily more restrictive. Bombardier asserted that using
``new or more restrictive'' is more accurate, all-encompassing, and
less likely to cause confusion.
The FAA agrees with the requested use of the term ``new or more
restrictive limitations'' throughout the final rule. This terminology
is consistent with the standard language used in current ADs. The FAA
has revised this AD accordingly.
Request for Changing the Description of the Limitations
Bombardier requested that the sentence in the third paragraph under
the ``Background'' Section of the proposed AD that specifies ``The new
and more restrictive limitations include tasks and limitations . . .''
be revised to include the phrase: ``new limitation tasks, as well as
existing limitation tasks for which additional effectivity was added, a
threshold or repeat interval was reduced, a discard time was reduced,
or an inspection method was changed.''
The FAA acknowledges that Bombardier is identifying additional
changes within the airworthiness limitation tasks. However, the FAA
disagrees with revising this final rule as suggested by Bombardier
because that level of detail of how specific airworthiness limitation
tasks have changed is not necessary. The FAA considers the existing
language in this AD to be sufficient to describe the applicable time
limits/maintenance checks (TLMC) documents and, therefore, has not
changed this AD in this regard.
Request for Removal of Sections That Do Not Apply
Bombardier requested the removal of Sections 5-20-00, 5-30-20, and
5-70-00 from the proposed AD, as Transport Canada AD CF-2024-16, dated
May 23, 2024, references the AWL within the TLMC documents.
The FAA agrees to remove Sections 5-20-00, 5-30-20, and 5-70-00
after confirming with Transport Canada that the intent of the MCAI
applies only to Section 5-10-00, ``Airworthiness Limitations.''
Therefore, the FAA has removed reference to Sections 5-20-00, 5-30-20,
and 5-70-00 from this AD.
Request To Mandate Additional TLMCs and Temporary Revisions
Bombardier requested that the FAA mandate all new or more
restrictive limitations included in the latest published TLMC
revisions. Bombardier noted that numerous Temporary Revisions (TRs)
have been issued, containing updated or more restrictive limitations
that should be incorporated into operators' aircraft maintenance
programs. Bombardier explained that if the FAA decides not to mandate
the latest TLMC revisions and associated TRs, a subparagraph should be
added to the proposed AD to provide credit to operators who voluntarily
incorporate
[[Page 46332]]
these revisions, or any subsequently approved TLMC revisions, into
their maintenance programs.
The FAA disagrees with mandating all new or more restrictive
limitations included in the latest published TLMC revisions and the
associated TRs issued thereafter. The FAA notes that Transport Canada
has not issued an AD requiring these later TLMC revisions and TRs. In
addition, to require more restrictive limitations than those identified
in the proposed AD would necessitate (under the provisions of the
Administrative Procedure Act) reissuing the notice, reopening the
period for public comment, considering additional comments subsequently
received, and eventually issuing a final rule. In light of this, the
FAA has determined that further delay of this AD is not appropriate.
The FAA has determined that an unsafe condition exists and that
incorporating the limitations specified in this AD must be done to
ensure continued safety. The FAA might consider additional rulemaking
in the future to mandate new or more restrictive limitations.
Therefore, the FAA has not revised this AD in this regard.
Request To Exclude Service Information From Website
Bombardier requested exclusion of the required service information
that is incorporated by reference from public posting on the
regulations.gov online docket and identified that service information
as Confidential Business Information (CBI). Bombardier asserted that a
paper copy may be incorporated by reference in the Library of Congress
version. Bombardier explained that the listed service information is
reasonably available through the normal distribution channels or as
identified in the ADDRESSES section. Bombardier added that interested
parties can register on the Bombardier customer portal (https://my.bombardier.com/) to obtain access to the referenced service
information.
The FAA disagrees with excluding service information that is
incorporated by reference from public posting on the regulations.gov
online docket. The FAA clarifies that the CBI section of the NPRM
applies only to information submitted by a commenter as part of their
comment, and not to documents required for compliance. The FAA notes
that any material incorporated by reference is also available at the
National Archives and Records Administration's (NARA) Washington, DC,
area offices, in addition to being accessible via regulations.gov. The
FAA has not changed this AD in this regard.
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, and any other changes described previously,
this AD is adopted as proposed in the NPRM. None of the changes will
increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
The FAA reviewed the following Bombardier material:
Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 600 Time Limits/Maintenance Checks (TLMC),
Publication No. PSP 605, Revision 39, dated January 8, 2018. (For
obtaining these sections of Bombardier Challenger 600 TLMC, Publication
No. PSP 605, use Document Identification No. CH 600 TLMC.)
Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 601 TLMC, Publication No. PSP 601-5, Revision 46,
dated January 8, 2018. (For obtaining these sections of Bombardier
Challenger 601 TLMC, Publication No. PSP 601-5, use Document
Identification No. CH 601 TLMC.)
Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 601 TLMC, Publication No. PSP 601A-5, Revision
42, dated January 8, 2018. (For obtaining these sections of Bombardier
Challenger 601 TLMC, Publication No. PSP 601A-5, use Document
Identification No. CH 601 TLMC-1.)
Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 604 TLMC, Publication No. CH 604 TLMC, Revision 33, dated
November 22, 2022. (The document identification number for ordering
Bombardier Challenger 604 TLMC, Publication No. CH 604 TLMC is
incorrectly identified as ``CH 600 TLMC'' on page 2 of the TLMC. For
obtaining Part 2 of Bombardier Challenger 604 TLMC, Publication No. CH
604 TLMC, use Document Identification No. CH 604 TLMC.)
Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 605 TLMC, Publication No. CH 605 TLMC, Revision 22, dated
November 22, 2022.
Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 650 TLMC, Publication No. CH 650 TLMC, Revision 9, dated
November 22, 2022.
This material specifies new or more restrictive airworthiness
limitations, which includes certain certification maintenance
requirements for airplane structures and safe life limits, among other
limitations. These documents are distinct since they apply to different
airplane configurations.
The FAA also reviewed the following Bombardier material:
Temporary Revision No. 5-2-5, dated October 16, 2023,
which includes new Task 32-51-04-101*, ``Discard of the Nosewheel-
Steering Control Potentiometer Coupling Setscrews, Part No. B0201102-2-
220 (A/C 6194 and Subs or Post SB 650-32-007).''
Temporary Revision No. 5-2-29, dated October 25, 2023,
which includes new Task 32-51-04-101*, ``Discard of the Nosewheel-
Steering Control Potentiometer Coupling Setscrews, Part No. B0201102-2-
220 (Post SB 605-32-010).''
Temporary Revision No. 5-2-73, dated October 25, 2023,
which includes new Task 32-51-04-101*, ``Discard of the Nosewheel-
Steering Control Potentiometer Coupling Setscrews, Part No. B0201102-2-
220 (Post SB 604-32-033).''
Temporary Revision No. TR 5-164, dated December 23, 2022,
which includes new Task 53-10-01-102*, ``Forward Pressure Bulkhead Cap
Angle--Aft Side.''
Temporary Revision No. TR 5-165, dated October 25, 2023.
Temporary Revision No. TR 5-268, dated December 23, 2022,
which includes new Task 53-10-01-103*, ``Forward Pressure Bulkhead Cap
Angle--Aft Side.''
Temporary Revision No. TR 5-269, dated October 25, 2023.
Temporary Revision No. TR 5-282, dated December 23, 2022,
which includes new Task 53-10-01-103*, ``Forward Pressure Bulkhead Cap
Angle--Aft Side.''
Temporary Revision No. TR 5-283, dated October 25, 2023.
(The asterisk (or ``one star'') with the last three digits of the
task numbers listed above indicates that the task is an airworthiness
limitation task.).
Temporary Revision No. 5-2-5, 5-2-29, 5-2-73, TR 5-165, TR 5-269,
and TR 5-283 introduce a life limit for potentiometer coupling
setscrews, P/N B0201102-2-220, for the nosewheel-
[[Page 46333]]
steering control or rudder pedal, as applicable. Temporary Revision
Nos. TR 5-164, TR 5-268, and TR 5-282 introduce a visual check of the
forward pressure bulkhead cap angle on the aft side. These documents
are distinct since they apply to different airplane configurations.
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 427 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this 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
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:
2025-17-12 Bombardier, Inc.: Amendment 39-23122; Docket No. FAA-
2025-0616; Project Identifier MCAI-2024-00304-T.
(a) Effective Date
This airworthiness directive (AD) is effective October 31, 2025.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the Bombardier, Inc., airplanes identified in
paragraphs (c)(1) and (2) of this AD, certificated in any category.
(1) All Model CL-600-1A11 (600), CL-600-2A12 (601), and CL-600-
2B16 (601-3A and 601-3R Variants) airplanes.
(2) Model CL-600-2B16 (604 Variant) airplanes, serial numbers
6050 through 6192 inclusive.
(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 new or more restrictive limitations.
Failure to comply with these new or more restrictive limitations
could adversely affect the continued airworthiness of the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Maintenance or Inspection Program Revision
(1) Within 90 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in the applicable time limits/
maintenance checks (TLMC) document identified in table 1 to
paragraph (g)(1) of this AD. The initial compliance time for doing
the tasks is at the time specified in the applicable TLMC document
identified in table 1 to paragraph (g)(1) of this AD, or within 90
days after the effective date of this AD, whichever occurs later,
except as provided by paragraph (h) of this AD.
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[GRAPHIC] [TIFF OMITTED] TR26SE25.000
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Table 1 to Paragraph (g)(1)--TLMC Documents
[GRAPHIC] [TIFF OMITTED] TR26SE25.001
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Table 2 to paragraph (g)(2)--Temporary Revisions
[GRAPHIC] [TIFF OMITTED] TR26SE25.002
(2) Within 90 days after the effective date of this AD, revise
the existing maintenance or inspection program, as applicable, to
incorporate the information specified in the applicable temporary
revisions (TRs) identified in table 2 to paragraph (g)(2) of this
AD. The initial compliance time for doing the tasks is at the time
specified in the applicable TR identified in table 2 to paragraph
(g)(2) of this AD, or within 90 days after the effective date of
this AD, whichever occurs later.
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Note 1 to table 2 to paragraph (g)(2): The asterisk (or ``one
star'') with the last three digits of the task numbers listed in
table 2 to paragraph (g)(2) of this AD indicates that the task is an
airworthiness limitation task.
(h) Compliance Time Exception for a Certain Task
For Bombardier, Inc., Model CL-600-2B16 (604 Variant) airplanes,
S/Ns 5301 through 5665 inclusive and S/Ns 5701 through 6049
inclusive: The initial compliance time for task 27-42-01-110,
``Special Detailed Inspection of the Horizontal Stabilizer Trim
Actuator (HSTA), P/N 604-92305-7 and Subs (Vendor P/N 8454-3 and
Subs),'' of section 5-10-40, ``Certification Maintenance
Requirements,'' of Part 2, ``Airworthiness Limitations,'' of
Bombardier Challenger 604 TLMC, Publication No. CH 604 TLMC,
Revision 33, dated November 22, 2022; or Bombardier Challenger 605
TLMC, Publication No. CH 605 TLMC, Revision 22, dated November 22,
2022; as applicable, is at the applicable compliance time specified
in paragraph (h)(1) or (2) of this AD, or within 90 days after the
effective date of this AD, whichever occurs later.
(1) For HSTA having P/N 604-92305-3 (vendor P/N 8454-1) or P/N
604-92305-5 (vendor P/N 8454-2) that were replaced with P/N 604-
92305-7 (vendor P/N 8454-3) in accordance with paragraph (j) of AD
2015-05-07, Amendment 39-18117 (80 FR 13483, March 16, 2015): Within
12 years after accomplishing the replacement.
(2) For HSTA having P/N 604-92305-7 (vendor P/N 8454-3)
manufactured before November 1, 2015: Within 12 years from the part
entry into service.
(i) No Alternative Actions and Intervals
After the existing maintenance or inspection program has been
revised as required by paragraph (g) of this AD, no alternative
actions (e.g., inspections) or intervals may be used unless the
actions or intervals are approved as an alternative method of
compliance (AMOC) in accordance with the procedures specified in
paragraph (j)(1) of this AD.
(j) 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 (k) of this AD and email to:
[email protected]. 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's
Transport Canada Design Approval Organization (DAO). If approved by
the DAO, the approval must include the DAO-authorized signature.
(k) Additional Information
For more information about this AD, contact Brenda L. Buitrago,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; phone: 516-228 7300; email: [email protected].
(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) Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 600 Time Limits/Maintenance Checks (TLMC),
Publication No. PSP 605, Revision 39, dated January 8, 2018.
Note 2 to paragraph (l)(2)(i): For obtaining this section of
Bombardier Challenger 600 TLMC, Publication No. PSP 605, use
Document Identification No. CH 600 TLMC.
(ii) Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 601 TLMC, Publication No. PSP 601-5, Revision
46, dated January 8, 2018.
[[Page 46338]]
Note 3 to paragraph (l)(2)(ii): For obtaining this section
Bombardier Challenger 601 TLMC, Publication No. PSP 601-5, use
Document Identification No. CH 601 TLMC.
(iii) Section 5-10-00, ``Airworthiness Limitations,'' of
Bombardier Challenger 601 TLMC, Publication No. PSP 601A-5, Revision
42, dated January 8, 2018.
Note 4 to paragraph (l)(2)(iii): For obtaining this section of
Bombardier Challenger 601 TLMC, Publication No. PSP 601A-5, use
Document Identification No. CH 601 TLMC-1.
(iv) Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 604 TLMC, Publication No. CH 604 TLMC, Revision 33, dated
November 22, 2022.
Note 5 to paragraph (l)(2)(iv): The document identification
number for ordering Bombardier Challenger 604 TLMC, Publication No.
CH 604 TLMC is incorrectly identified as ``CH 600 TLMC'' on page 2
of the TLMC. For obtaining Part 2 of Bombardier Challenger 604 TLMC,
Publication No. CH 604 TLMC, use Document Identification No. CH 604
TLMC.
(v) Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 605 TLMC, Publication No. CH 605 TLMC, Revision 22, dated
November 22, 2022.
(vi) Part 2, ``Airworthiness Limitations,'' of Bombardier
Challenger 650 TLMC, Publication No. CH 650 TLMC, Revision 9, dated
November 22, 2022.
(vii) Bombardier Temporary Revision No. 5-2-5, dated October 16,
2023.
(viii) Bombardier Temporary Revision No. 5-2-29, dated October
25, 2023.
(ix) Bombardier Temporary Revision No. 5-2-73, dated October 25,
2023.
(x) Bombardier Temporary Revision No. TR 5-164, dated December
23, 2022.
(xi) Bombardier Temporary Revision No. TR 5-165, dated October
25, 2023.
(xii) Bombardier Temporary Revision No. TR 5-268, dated December
23, 2022.
(xiii) Bombardier Temporary Revision No. TR 5-269, dated October
25, 2023.
(xiv) Bombardier Temporary Revision No. TR 5-282, dated December
23, 2022.
(xv) Bombardier Temporary Revision No. TR 5-283, dated October
25, 2023.
(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 [email protected]; website
https://my.bombardier.com/.
(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 www.archives.gov/federal-register/cfr/ibr-locations or email [email protected].
Issued on September 16, 2025.
Steven W. Thompson,
Acting Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-18759 Filed 9-25-25; 8:45 am]
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