Rule2023-17772
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
August 18, 2023
Effective
September 22, 2023
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 reports of mechanical wear damage found on the engine fuel feed system tubes and fuel tube connections. This AD requires repetitive inspections of the fuel feed system for damage, and replacement if necessary, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 88 Issue 159 (Friday, August 18, 2023)</title>
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[Federal Register Volume 88, Number 159 (Friday, August 18, 2023)]
[Rules and Regulations]
[Pages 56459-56462]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-17772]
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Rules and Regulations
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains regulatory documents
having general applicability and legal effect, most of which are keyed
to and codified in the Code of Federal Regulations, which is published
under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.
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Federal Register / Vol. 88, No. 159 / Friday, August 18, 2023 / Rules
and Regulations
[[Page 56459]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1566; Project Identifier MCAI-2022-00290-T;
Amendment 39-22521; AD 2023-16-02]
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.
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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 reports of mechanical wear damage
found on the engine fuel feed system tubes and fuel tube connections.
This AD requires repetitive inspections of the fuel feed system for
damage, and replacement if necessary, as specified in a Transport
Canada AD, which is incorporated by reference. The FAA is issuing this
AD to address the unsafe condition on these products.
DATES: This AD is effective September 22, 2023.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1566; 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 material incorporated by reference 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#0256412c436b70756d70766a6b6c677171466b706761766b7467712f416d6c716b656c677166676c63746b6563606b6e6b76672c56414276612c65612c6163"><span class="__cf_email__" data-cfemail="0b5f48254a62797c64797f6362656e78784f62796e687f627d6e782648646578626c656e786f6e656a7d626c6a696267627f6e255f484b7f68256c6825686a">[email protected]</span></a>; website 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 in the AD docket at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-1566.
FOR FURTHER INFORMATION CONTACT: Joseph Catanzaro, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 516-228-7366; email <a href="/cdn-cgi/l/email-protection#90a9bdf1e6e3bdfee9f1f3ffbdf3ffe3d0f6f1f1bef7ffe6"><span class="__cf_email__" data-cfemail="685145091e1b450611090b07450b071b280e0909460f071e">[email protected]</span></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 all Airbus Canada
Limited Partnership Model BD-500-1A10 and BD-500-1A11 airplanes. The
NPRM published in the Federal Register on December 6, 2022 (87 FR
74527). The NPRM was prompted by AD CF-2022-08, dated March 3, 2022,
issued by Transport Canada, which is the aviation authority for Canada
(Transport Canada AD CF-2022-08) (also referred to as the MCAI). The
MCAI states there have been several in-service findings of mechanical
wear damage on the engine fuel feed system tubes and fuel tube
connections on airplanes that are ``post-SB BD500-282004'' or that have
the production equivalent. Airbus Canada Limited Partnership (ACLP)
Service Bulletin BD500-282004, Issue 1, dated August 30, 2019, was
mandated by Transport Canada AD CF-2019-19R1, dated November 1, 2019,
and specifies, among other actions, modifying the fuel feed line
installations in the fuel collector tanks. Transport Canada AD CF-2019-
19R1 corresponds to FAA AD 2022-02-07, Amendment 39-21904 (87 FR 7027,
February 8, 2022) (AD 2022-02-07).
In the NPRM, the FAA proposed to require repetitive inspections of
the fuel feed system for damage and replacement if necessary, as
specified in Transport Canada AD CF-2022-08. The NPRM also proposed to
address mechanical wear damage on the engine fuel feed system tubes and
fuel tube connections, as specified in Transport Canada AD CF-2022-08.
The unsafe condition, if not addressed, could result in failure of the
affected fuel tubes and subsequent failure of the gravity transfer
system, which could lead to a fuel imbalance resulting in a reduction
in aircraft functional capabilities and increased crew workload.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1566.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from The Air Line Pilots Association,
International (ALPA) who supported the NPRM without change.
The FAA received additional comments from Delta Airlines (DAL). The
following presents the comments received on the NPRM and the FAA's
response to each comment.
Request To Add Exception To Identify Correct Washer Part Number
DAL stated that the service information specified by Transport
Canada AD CF-2022-08 (ACLP Service Bulletin BD500-282006, Issue 002,
dated December 21, 2021) introduced incorrect, demodifying washer part
number NAS1149E0332R at post-FAA AD 2022-02-07 locations. DAL requested
that the FAA require the use of ACLP Service Bulletin BD500-282006,
Issue 003, dated September 23, 2022, or later revision to prevent
demodification of post-FAA AD 2022-02-07 airplanes.
The FAA agrees that the washer part number NAS1149E0332R is
incorrect. The correct part number is NAS1149D0332J. The FAA further
agrees that Issue 003 of the referenced service information corrects
the washer part number. However, the FAA finds it unnecessary to change
the compliance method in this AD as requested. Transport Canada AD CF-
2002-08 allows later approved revisions of the service information, so
Issue 003 is
[[Page 56460]]
already included as acceptable service information in this AD. To
address the part number error, the FAA has instead added an exception
in paragraph (h)(6) of this AD to identify the correct washer part
number.
Request To Change Paragraph Reference for Exceptions
DAL stated paragraph (g) should be changed to ``Except as specified
in paragraph (h) of this AD'' in lieu of ``Except as specified in
paragraph (g) of this AD'' to reference the Exceptions paragraph.
The FAA agrees that (g) was referenced in error, and has revised
paragraph (g) of this AD accordingly.
Request for Change in Compliance Time Due to Parts Shortage
DAL reviewed the compliance time as stated in Transport Canada AD
CF-2022-08, dated March 3, 2022, relating to the worldwide parts
shortage resulting in low stock on parts required to accomplish this
inspection. DAL has noted a large portion of its fleet will have to be
inspected within 850 hours once the FAA AD is issued. The part
shortages will risk grounding airplanes and will increase out-of-
service time due to the ground time required to do inspections. This
will cause a significant negative economic impact on the operators and
the public by reducing the airplanes' service time, which, as noted by
the commenter, was not considered in the Costs of Compliance section of
the NPRM. DAL would like for the FAA to assist in ensuring parts
support.
Although the FAA is not involved in controlling the availability of
parts worldwide, the FAA has received assurance from the parts original
equipment manufacturer (OEM) that parts will be available for most
airplanes within the required compliance time. If parts may not be
available in a timely manner for certain airplanes, paragraph (j)(1) of
this AD allows operators to request approval of an alternative method
of compliance to extend the compliance time, based on a showing that
the extension will not adversely affect safety.
Regarding the commenter's concern that the AD's impact on
operations was not considered in the NPRM, the FAA notes that the cost
information provided in an AD describes only the direct costs of the
specific actions required by the AD. The FAA recognizes that in doing
the required actions, operators might incur incidental costs in
addition to the direct costs. The cost analysis in ADs, however,
typically does not include incidental costs, including airplane down
time, which might vary significantly among operators. Even if
additional down time is necessary for some airplanes in some cases, the
FAA does not have sufficient information to evaluate the number of
potentially affected airplanes or the amount of additional downtime
that may be required. Therefore, it would be impossible to estimate
such costs.
Request To Clarify Part Configuration
DAL stated paragraph (g) of the proposed AD needs to clarify the
saddle clamp configuration in Figure 1 of the service information
referenced in Transport Canada AD CF-2022-08. (The FAA assumes the
commenter is referring to Figure 1, Sheet 2, which identifies item
numbers ``15 OR 16 OR 17''; Figure 1, Sheet 4, which identifies
``THREADED COUPLING BODY B0305072-20DE OR -24DE''; and Figure 1, Sheet
5, which identifies ``RIGID COUPLING BODY B0305118-20A or -24A.'') The
commenter stated that use of the term ``or'' in these locations
incorrectly implies that the parts are interchangeable. DAL stated that
operators should instead refer to Figure 1 in Issue 003 of ACLP Service
Bulletin BD500-282006 for the correct installation specifications.
The FAA agrees to add clarification regarding the referenced
information. The FAA has received confirmation from Airbus Canada that
in all cases where the term ``OR'' is used in the figures described
above, reference is made to the clamp assembly in each instance and the
parts are applicable to all affected airplanes, and are identified as
``two-way interchangeable'' in the Illustrated parts data publication
(IPDP). The operator may also refer to the IPDP for clarification.
Request To Revise Punctuation
DAL requested that paragraph (h)(4) of the proposed AD be changed
to remove the apostrophe in ``hour's air time because the word
``hour's'' is not used in Transport Canada AD CF-2022-08.
The FAA has revised paragraph (h)(4) of this AD to quote the phrase
from the Transport Canada AD verbatim.
Request for Clarification of Required for Compliance (RC) Procedure
DAL requested clarification of the RC steps in the service
information referenced in Transport Canada CF-2022-08. DAL requested
that the proposed AD clarify that the RC paragraph is referring to
Section 3 procedure and not the steps under the title ``Procedure.''
The FAA provides the following clarification. Only Section 3
Procedure (in each Part) under the title Procedure is required for
compliance. Section 2, Job set-up, and section 4, Job close-up, are
recommended but not required. Paragraph (h)(7) of this AD has been
added to clarify these requirements.
Request To Clarify Conditions for Replacement
Paragraph (h)(5) of the proposed AD stated that replacement of the
affected part would be required ``if any mechanical wear damage is
found on which the measured damage is within the specifications
identified in ACLP SB BD500-282006.'' Delta requested that ``within the
specifications'' be changed to ``outside of the specifications.''
The FAA agrees that if the measured damage exceeds the allowable
damage value given by the service bulletin, then the part is required
to be replaced. If the part does not exceed the allowable limits, then
the part is not required to be replaced. The FAA has changed paragraph
(h)(5) of this AD to define wear damage requiring replacement, i.e.,
when mechanical wear damage is found on which the measured damage
exceeds the allowable limits identified in the referenced service
information.
Conclusion
This product has been approved by the aviation authority of another
country and is approved for operation in the United States. Pursuant to
the FAA's bilateral agreement with this State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
referenced above. The FAA reviewed the relevant data, considered the
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 this product. 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.
Related Service Information Under 1 CFR Part 51
Transport Canada AD CF-2022-08 specifies procedures for repetitive
general visual inspections for signs of mechanical wear damage (damage
includes cracks, scores, scratches, nicks, and gouges) of the fuel feed
system (the fuel feed tubes, related attaching hardware, and the area
where the saddle clamp was installed), and replacement of affected
parts (including the fuel tube, related saddle clamp, attaching
hardware, and fuel shutoff valve) if any
[[Page 56461]]
damage is found that exceeds the allowable limits.
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.
Interim Action
The FAA considers that this AD is an interim action. If final
action is later identified, the FAA might consider further rulemaking
then.
Costs of Compliance
The FAA estimates that this AD affects 69 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
74 work-hours x $85 per hour = $6,290........................ $0 $6,290 $434,010
----------------------------------------------------------------------------------------------------------------
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 Actions
------------------------------------------------------------------------
Cost per
Labor cost Parts cost product
------------------------------------------------------------------------
7 work-hours x $85 per hour = $595.... $57,284 Up to $57,879
------------------------------------------------------------------------
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:
2023-16-02 Airbus Canada Limited Partnership (Type Certificate
Previously Held by C Series Aircraft Limited Partnership (CSALP);
Bombardier, Inc.): Amendment 39-22521; Docket No. FAA-2022-1566;
Project Identifier MCAI-2022-00290-T.
(a) Effective Date
This airworthiness directive (AD) is effective September 22,
2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus Canada Limited Partnership (Type
Certificate previously held by C Series Aircraft Limited Partnership
(CSALP); Bombardier, Inc.) Model BD-500-1A10 and BD-500-1A11
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel.
(e) Unsafe Condition
This AD was prompted by reports of mechanical wear damage on the
engine fuel feed system tubes and fuel tube connections. The FAA is
issuing this AD to address mechanical wear damage on the engine fuel
feed system tubes and fuel tube connections. The unsafe condition,
if not addressed, could result in failure of the affected fuel tubes
and subsequent failure of the gravity transfer system, which could
lead to a fuel imbalance resulting in a reduction in aircraft
functional capabilities and increased crew workload.
(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-2022-08, dated March 3, 2022
(Transport Canada AD CF-2022-08).
[[Page 56462]]
(h) Exceptions To Transport Canada AD CF-2022-08
(1) Where Transport Canada AD CF-2022-08 refers to its effective
date, this AD requires using the effective date of this AD.
(2) Where paragraph B. of Part 1 of Transport Canada AD CF-2022-
08 specifies a compliance time for accomplishing the inspection, for
this AD, the inspection must be done at the time specified in
paragraph (h)(2)(i) or (ii) of this AD, whichever occurs later.
(i) The compliance time specified in paragraph B. of Part 1 of
Transport Canada AD CF-2022-08.
(ii) Within 60 flight hours or 7 days after the effective date
of this AD, whichever occurs first.
(3) Where paragraph B. of part II of Transport Canada AD CF-
2022-08 specifies a compliance time for accomplishing the
inspection, for this AD, the inspection must be done at the time
specified in paragraph (h)(3)(i) or (ii) of this AD, whichever
occurs later.
(i) The compliance time specified in paragraph B. of Part II of
Transport Canada AD CF-2022-08.
(ii) Within 60 flight hours or 7 days after the effective date
of this AD, whichever occurs first.
(4) Where Transport Canada AD CF-2022-08 refers to ``hours air
time,'' this AD requires replacing those words with ``flight
hours.''
(5) Where Transport Canada AD CF-2022-08 specifies to ``rectify
any discrepancy,'' this AD requires replacing those words with ``if
any mechanical wear damage is found on which the measured damage
exceeds the allowable limits identified in ACLP SB BD500-282006,
before further flight replace the affected part.''
(6) Where the service information referenced in Transport Canada
AD CF-2022-08 specifies ``washer part number NAS1149E0332R,'' this
AD requires replacing those words with ``washer part number
NAS1149D0332J.''
(7) Where Transport Canada AD CF-2022-08 requires actions ``in
accordance with Parts C and D Accomplishment Instructions of ACLP SB
BD500-282006,'' and ``in accordance with Parts A and B
Accomplishment Instructions of ACLP SB BD500-282006,'' this AD
requires replacing those words with ``in accordance with Section 3
Procedure in each Part of the Accomplishment Instructions of ACLP SB
BD500-282006.''
(i) No Reporting Requirement
Although the service information referenced in Transport Canada
AD CF-2022-08 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,
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, mail it to ATTN: Program Manager,
Continuing Operational Safety, at the address identified in
paragraph (k) of this AD or email to <a href="/cdn-cgi/l/email-protection" class="__cf_email__" data-cfemail="a99084e8fffa84e7f0e8eae684eae6fae9cfc8c887cec6df">[email protected]</a>. If
mailing information, also submit information by email. 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 Airbus Canada
Limited Partnership 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 service information
contains procedures that are identified as RC, those procedures must
be done to comply with this AD; any procedures that are not
identified as RC are recommended. Those procedures 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
identified as RC can be done and the airplane can be put back in an
airworthy condition. Any substitutions or changes to procedures
identified as RC require approval of an AMOC.
(k) Additional Information
For more information about this AD, contact Joseph Catanzaro,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 516-228-7366; email <a href="/cdn-cgi/l/email-protection#0b32266a7d782665726a6864266864784b6d6a6a256c647d"><span class="__cf_email__" data-cfemail="625b4f0314114f0c1b03010d4f010d11220403034c050d14">[email protected]</span></a>.
(l) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless this AD specifies otherwise.
(i) Transport Canada AD CF-2022-08, dated March 3, 2022.
(ii) [Reserved]
(3) For Transport Canada AD CF-2022-08, 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"><span class="__cf_email__" data-cfemail="6531264b240c17120a17110d0c0b001616210c170006110c13001648260a0b160c020b001601000b04130c0204070c090c11004b31262511064b02064b0604">[email protected]</span></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 that is incorporated by reference
at the National Archives and Records Administration (NARA). For
information on the availability of this material at NARA, email
<a href="/cdn-cgi/l/email-protection#1c7a6e3275726f6c797f687573725c727d6e7d327b736a"><span class="__cf_email__" data-cfemail="fa9c88d49394898a9f998e939594ba949b889bd49d958c">[email protected]</span></a>, or go to: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on August 8, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-17772 Filed 8-17-23; 8:45 am]
BILLING CODE 4910-13-P
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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.