Rule2025-02051
Airworthiness Directives; Various Airplanes and Helicopters
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
January 31, 2025
Effective
March 7, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2021-07-13 for certain Pacific Scientific Company rotary buckle assemblies (buckles). AD 2021-07-13 required inspecting each specified buckle including its buckle handle vane and prohibited installing affected buckles. This AD was prompted by the publication of an updated service bulletin, which revises the applicability based on date of manufacture of the affected buckles. This AD retains certain requirements of AD 2021-07-13, reduces the applicability, and requires performing corrective actions by complying with certain portions of the updated service bulletin. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 90 Issue 20 (Friday, January 31, 2025)</title>
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[Federal Register Volume 90, Number 20 (Friday, January 31, 2025)]
[Rules and Regulations]
[Pages 8673-8676]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-02051]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2024-0996; Project Identifier AD-2023-00365-A,Q,R,T;
Amendment 39-22917; AD 2024-26-02]
RIN 2120-AA64
Airworthiness Directives; Various Airplanes and Helicopters
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-07-13
for certain Pacific Scientific Company rotary buckle assemblies
(buckles). AD 2021-07-13 required inspecting each specified buckle
including its buckle handle vane and prohibited installing affected
buckles. This AD was prompted by the publication of an updated service
bulletin, which revises the applicability based on date of manufacture
of the affected buckles. This AD retains certain requirements of AD
2021-07-13, reduces the applicability, and requires performing
corrective actions by complying with certain portions of the updated
service bulletin. The FAA is issuing this AD to address the unsafe
condition on these products.
DATES: This AD is effective March 7, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of March 7,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2024-0996; 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, 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 Parker Meggitt material identified in this AD, contact
Parker Meggitt Services, 1785 Voyager Avenue, Simi Valley, CA 93063;
phone: (877) 666-0712; email: <a href="/cdn-cgi/l/email-protection#c397a6a0ab90b6b3b3acb1b783aea6a4a4aab7b7eda0acae"><span class="__cf_email__" data-cfemail="a9fdcccac1fadcd9d9c6dbdde9c4cccecec0dddd87cac6c4">[email protected]</span></a>.
<bullet> You may view this material at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321,
Fort Worth, TX 76177. For information on the availability of this
material at the FAA, call: (817) 222-5110.
Other Related Material: For other related Parker Meggitt material
identified in this AD, contact Parker Meggitt Services, at the Parker
Meggitt Services contact information under Material Incorporated by
Reference above.
FOR FURTHER INFORMATION CONTACT: Hal Jensen, Aviation Safety Engineer,
FAA, 3960 Paramount Boulevard, Lakewood, CA 90712; phone: (303) 342-
1080; email: <a href="/cdn-cgi/l/email-protection#7f171e1351151a110c1a113f191e1e51181009"><span class="__cf_email__" data-cfemail="7e161f1250141b100d1b103e181f1f50191108">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2021-07-13, Amendment 39-21490 (86 FR
17703, April 6, 2021) (AD 2021-07-13). AD 2021-07-13 applied to Pacific
Scientific Company buckles part numbers 1111430 and 1111475, all dash
numbers, installed on but not limited to Bombardier Inc., Learjet Inc.,
Mitsubishi Heavy Industries, Ltd., Textron Aviation, Inc. (type
certificate (TC) previously held by Cessna Aircraft Company), and
Viking Air Limited (TC previously held by de Havilland, Inc.) model
airplanes and Airbus Helicopters (TC previously held by Eurocopter
France) model helicopters. The NPRM published in the Federal Register
on April 9, 2024 (89 FR 24742). The NPRM was prompted by a manufacturer
determination that the cracking on the buckle handle was caused by a
material process issue and stated that the issue was resolved in 2007.
Accordingly, the manufacturer published revised material to revise the
applicability by date of manufacture and clarify procedures. In the
NPRM, the FAA proposed to require revising the applicability to plastic
buckles with a date of manufacture on or before May 31, 2007, or
buckles whose date of manufacture cannot be determined, except not
those buckles repaired with the installation of an airworthy buckle
handle after May 31, 2007, and marked with a BLUE logo on the center
button. In the NPRM, the FAA also proposed to clarify that the unsafe
condition could result in occupants not being able to release the
buckle in certain emergency landing conditions. Furthermore, the FAA
proposed to require using the revised service bulletin to accomplish
its requirements and add a special flight permit limitation.
Lastly, the NPRM updated the contact information to obtain related
material, and the FAA proposed to move and update the contents of Note
1 in AD 2021-07-13 to the preamble of this AD.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from seven commenters. The commenters
were Air Wisconsin Airlines, American Airlines (AAL), All Nippon
Airways (ANA), Delta Air Lines, Inc., Horizon Air, Southwest Airlines,
and United Airlines (UAL). The following presents the comments received
on the NPRM and the FAA's response to each comment.
Requests To Correct the Date of the Related Material
Delta Air Lines, Inc. and Horizon Air requested the FAA revise Note
1 to paragraph (c)(1) of the Applicability paragraph to update the date
for Meggitt Service Information Letter SIL Restraint-25-002-2023, dated
January 24, 2023. The commenters stated the updated publication date of
this related material is September 25, 2023, and not January 24, 2023.
The FAA agrees and has revised the citations of that service
information letter in Note 1 to paragraph (c)(1) of this AD, as well as
the Other Related Material section in this final rule.
Request To Exclude Newly Manufactured Aircraft
Delta Airlines, Inc. stated that it is receiving newly-manufactured
airplanes with the restraint systems provided in the related material.
Delta Airlines, Inc. further commented that Meggitt information
specifies that buckles produced after May 2007 do not have the safety
concern and are considered airworthy. Accordingly, Delta Airlines, Inc.
requested the FAA revise paragraph (c)(1) of the proposed AD to exclude
these aircraft that are new into service as these aircraft will have
brand new buckles installed after 2007.
The FAA disagrees. The FAA determined because Meggitt is the
Technical Standard Order Authorization (TSOA) holder and does not hold
an approval for installation of the restraints, it is not responsible
for recording or controlling which aircraft airframes the applicable
restraint
[[Page 8674]]
systems are installed on. Individual operators may request an
alternative method of compliance (AMOC) under the provisions of
paragraph (j) of this AD if they believe that the installed buckle on
their aircraft's restraint system is airworthy.
Requests To Exclude Buckles With a Metal Handle or BLUE Logo
Delta Airlines, Inc. requested the FAA revise paragraphs (c) and
(g)(3) of the proposed AD to exclude buckles having a metal handle. AAL
and UAL requested the FAA confirm that buckles with a BLUE logo,
regardless of the date of manufacturer or the date of repair, are
compliant.
The FAA partially agrees. The FAA agrees that buckles with a metal
handle or a BLUE logo on the center button are not subject to this AD.
The FAA disagrees with specifically stating in paragraphs (c) and
(g)(3) of this AD that buckles with a metal handle are excluded from
the AD because the additional wording is not necessary since the text
already specifies that applicable handles are plastic. However, for
clarification, the FAA has added a note to paragraph (c)(1) of this AD
specifying that this AD does not apply to metal buckles or buckles with
a BLUE logo on the center button.
Request To Exclude Buckles With a Yellow or Gold Logo and Missing Date
of Manufacture
Southwest Airlines stated that AD 2021-07-13 allowed ``yellow/
gold'' logo buttons with compliant plastic handles. Southwest Airlines
requests the FAA allow the option to continue the use of buckles that
were previously inspected and compliant per AD 2021-07-13 that have a
yellow or gold logo button but are missing the date of manufacturer due
to premature wear.
The FAA disagrees. AD 2021-07-13 did not reference buckles having a
yellow or gold logo on the center button. Therefore, the FAA has made
no changes to this final rule based on that comment.
Comment Regarding Allowable Buckle Vane Handle Thickness
ANA requested clarification regarding paragraph (g)(2) of the
proposed AD, which specifies that a buckle vane handle thickness of
0.125 inch or greater is unacceptable, whereas Meggitt Service Bulletin
SB 25-1111432, Revision 002, states that a thickness (less than or)
equal to 0.125 inch is acceptable.
The FAA acknowledges this comment and has revised paragraph (g)(2)
of this AD to require corrective action only if the buckle handle vane
thickness is greater than 0.125 inch and paragraph (g)(3) of this AD to
prohibit installing a buckle with a buckle handle vane thickness
greater than 0.125 inch.
Comments Regarding Credit for Previous Actions
AAL and Horizon Air requested the FAA revise paragraph (h) of the
proposed AD to allow credit for paragraph (g)(1) of the proposed AD if
those actions were previously accomplished in accordance with
previously issued related material.
The FAA agrees to allow credit for paragraph (g)(1) of this AD if
the inspection of the buckle handle for a crack was previously
accomplished in accordance with Pacific Scientific Service Bulletin SB
25-1111432, dated May 22, 2007 (SB 25-1111432); or Meggitt Service
Bulletin SB 25-1111432, Revision 001, dated May 20, 2021 (SB 25-1111432
Rev 001). The FAA has revised paragraph (h) of this AD accordingly.
Air Wisconsin Airlines and Southwest Airlines requested the FAA
revise paragraph (h) of the proposed AD to allow credit for paragraph
(g)(1) of the proposed AD, if the buckle handle inspection was
completed in accordance with AD 2021-07-13.
The FAA acknowledges these comments and infers concern that some
buckles may be inspected for a crack twice unnecessarily, once as
required by AD 2021-07-13 and again as required by this AD. Instead of
revising paragraph (h) of this AD for this credit, the FAA has revised
paragraph (g)(1) of this AD to clarify the requirement to inspect for a
crack, unless already done.
UAL stated the proposed AD allows credit for previous actions if
the thickness of the vane was measured using previous service bulletin
revisions. UAL requested the FAA clarify that measurement of the buckle
handle vane thickness or replacement of the buckle as required in
paragraph (g)(2) of the proposed AD would be credit for previous
actions.
The FAA agrees. The FAA is allowing credit for accomplishing the
procedures to measure the buckle handle vane thickness by following SB
25-1111432 or SB 25-1111432 Rev 001 if done before the effective date
of this AD, and the FAA is allowing credit for the resultant
measurement and, if required the replacement based on the buckle vane
thickness.
Delta Airlines stated the FAA AMOC approval letter AIR-730-21-207
allowed to first inspect the buckle for a BLUE logo or a metal
configuration, and if there was a BLUE logo or the buckle was metal, no
further inspections were required. Delta Airlines further stated that
Parker Meggitt material specified that buckles produced or repaired
after 2007 are marked with a BLUE logo on the center button, and these
buckles along with metal buckles are compliant per the previously
described AMOC. Accordingly, Delta Airlines requested the FAA revise
paragraph (h) of the proposed AD to include credit for paragraphs
(g)(1) and (g)(2) of the proposed AD if the inspection was accomplished
using FAA AMOC approval letter AIR-730-21-207, dated June 29, 2021.
The FAA disagrees. The applicability of this AD already limits the
applicability to plastic buckles and exempts buckles marked with a BLUE
logo on the center button, therefore this AD does not apply to metal
buckles and buckles marked with a BLUE logo on the center button. To
clarify this, the FAA has revised this AD by adding a note to the
applicability which specifies that this AD does not apply to metal
buckles or buckles with a BLUE logo on the center button. Additionally,
as proposed in the NPRM and as adopted in paragraph (j)(3) of this AD,
AMOCs approved for AD 2021-07-13 are approved as AMOCs for the
corresponding requirements of this AD. Therefore, the FAA has made no
changes to this final rule's requirements based on that comment.
Conclusion
The FAA reviewed the relevant data, considered any comments
received, and determined that air safety requires adopting the 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 Parker Meggitt Service Bulletin SB 25-1111432,
Revision 002, dated September 12, 2023 (SB 25-1111432 Rev 002), which
specifies procedures for inspecting certain buckles for a crack, and
measuring each buckle handle vane for correct thickness. SB 25-1111432
Rev 002 also specifies procedures for corrective actions, including but
not limited to, removing and returning the buckle assembly or restraint
assembly to Parker Meggitt for overhaul or replacement; and removing
the buckle assembly or restraint assembly and
[[Page 8675]]
replacing them with spare, new, or repaired assemblies. An applicable
buckle may be included as a component of a different part-numbered
restraint system assembly. Table 1 of SB 25-1111432 Rev 002 identifies
restraint system P/Ns that may be affected.
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.
Other Related Material
The FAA also reviewed Meggitt Service Information Letter SIL
Restraint-25-002-2023, dated September 25, 2023, which specifies
procedures for locating the date of manufacture on various buckles.
Differences Between This AD and the Related Material
Where the related material specifies sending affected parts to the
manufacturer, this AD does not require that action. The related
material does not specify a compliance time to inspect for a crack or
measure for thickness, whereas this AD requires inspecting the buckle
handle for a crack within 6 months and measuring the buckle handle vane
thickness within 12 months.
Costs of Compliance
The FAA estimates that this AD affects up to 1,435 restraint
systems installed on aircraft of U.S. registry. Labor rates are
estimated at $85 per work-hour. Based on these numbers, the FAA
estimates the following costs to comply with this AD.
Inspecting a buckle handle for a crack and measuring thickness will
take a minimal amount of time for a nominal cost.
If required, replacing a buckle will take 0.5 work-hour and parts
will cost $636 for an estimated cost of $679 per buckle replacement. As
an option, replacing a restraint system will take 0.5 work-hour and
parts will cost $1,031 for an estimated cost of $1,074 per restraint
system replacement.
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:
0
a. Removing Airworthiness Directive 2021-07-13, Amendment 39-21490 (86
FR 17703, April 6, 2021); and
0
b. Adding the following new airworthiness directive:
2024-26-02 Various Airplanes and Helicopters: Amendment 39-22917;
Docket No. FAA-2024-0996; Project Identifier AD-2023-00365-A,Q,R,T.
(a) Effective Date
This airworthiness directive (AD) is effective March 7, 2025.
(b) Affected ADs
This AD replaces AD 2021-07-13, Amendment 39-21490 (86 FR 17703,
April 6, 2021) (AD 2021-07-13).
(c) Applicability
(1) This AD applies to all airplanes and helicopters,
certificated in any category, with a restraint system with a Pacific
Scientific Company plastic rotary buckle assembly (buckle) part
number (P/N) 1111430 or P/N 1111475 (all dash numbers) installed
having a date of manufacture on or before May 31, 2007, or an
unknown date of manufacture, except not those buckles repaired with
the installation of an airworthy buckle handle after May 31, 2007,
and marked with a BLUE logo on the center button.
Note 1 to paragraph (c)(1): Information about the location of
the date of manufacture can be found in Meggitt Service Information
Letter SIL Restraint-25-002-2023, dated September 25, 2023.
Note 2 to paragraph (c)(1): This AD does not apply to buckles
made of metal or to buckles with a BLUE logo on the center button.
(2) The buckles identified in paragraph (c)(1) of this AD may be
installed on, but not limited to, The Boeing Company, Bombardier
Inc., Learjet Inc., Mitsubishi Heavy Industries, Ltd., Textron
Aviation, Inc. (type certificate (TC) previously held by Cessna
Aircraft Company), and Viking Air Limited (TC previously held by de
Havilland, Inc.) model airplanes and Airbus Helicopters (TC
previously held by Eurocopter France) model helicopters,
certificated in any category.
(d) Subject
Joint Aircraft System Component (JASC) Code: 2500, Cabin
Equipment/Furnishings.
(e) Unsafe Condition
This AD was prompted by reports of cracked buckle handles and
updated manufacturer material. The FAA is issuing this AD to inspect
for cracks and thickness of the buckle handle. The unsafe condition,
if not addressed, could prevent a strap from releasing when the
buckle is rotated, which could result in occupants not being able to
release the buckle in certain emergency landing conditions.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Required Actions
(1) Within 6 months after the effective date of this AD, unless
already done, inspect the buckle handle for a crack. If there is any
crack, before further flight, remove the buckle from service and
replace it with an airworthy buckle, or remove the restraint system
from service and replace it with an airworthy restraint system.
(2) Within 12 months after the effective date of this AD,
measure the thickness of the buckle handle vane as depicted in
Figures 3 and 4 of Parker Meggitt Service Bulletin SB 25-1111432,
Revision 002, dated September 12, 2023 (SB 25-1111432 Rev 002). If
the buckle handle vane thickness is greater than
[[Page 8676]]
0.125 inch, before further flight, remove the buckle from service
and replace it with an airworthy buckle, or remove the restraint
system from service and replace it with an airworthy restraint
system.
Note 3 to paragraph (g)(2): SB 25-1111432 Rev 002 refers to a
buckle as both a buckle and buckle assembly, interchangeably.
Buckles with a buckle handle vane thickness equal to or less than
0.125 inch are considered airworthy.
(3) As of the effective date of this AD, do not install any
plastic buckle P/N 1111430 or P/N 1111475 (all dash numbers), with a
buckle handle vane thickness greater than 0.125 inch, or any
restraint system with a buckle P/N 1111430 or 1111475 (all dash
numbers), with a buckle handle vane thickness greater than 0.125
inch installed, with the buckle having a date of manufacture on or
before May 31, 2007, or if the date of manufacture cannot be
determined, on any airplane or helicopter, unless the buckle has
been repaired with the installation of an airworthy buckle handle
after May 31, 2007, and is marked with a BLUE logo on the center
button.
(h) Credit for Previous Actions
(1) If you inspected the buckle handle for a crack as required
by paragraph (g)(1) of this AD before the effective date of this AD
using Pacific Scientific Service Bulletin SB 25-1111432, dated May
22, 2007 (SB 25-1111432), or using Meggitt Service Bulletin SB 25-
1111432, Revision 001, dated May 20, 2021 (SB 25-1111432 Rev 001),
you have met that requirement.
(2) If you measured the thickness of the buckle handle vane and
replaced an affected buckle as required by paragraph (g)(2) of this
AD before the effective date of this AD using SB 25-1111432 or SB
25-1111432 Rev 001, you have met that requirement.
(i) Special Flight Permits
Special flight permits may be issued in accordance with 14 CFR
21.197 and 21.199, provided that there are no passengers onboard.
(j) Alternative Methods of Compliance (AMOCs)
(1) The Manager, West Certification Branch, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the manager of the West Certification Branch, send it to
the attention of the person identified in paragraph (k)(1) of this
AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#da9b9795999abcbbbbf4bdb5ac"><span class="__cf_email__" data-cfemail="26676b69656640474708414950">[email protected]</span></a>.
(2) Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office.
(3) AMOCs approved for AD 2021-07-13 are approved as AMOCs for
the corresponding requirements of this AD.
(k) Related Information
(1) For more information about this AD, contact Hal Jensen,
Aviation Safety Engineer, FAA, 3960 Paramount Boulevard, Lakewood,
CA 90712; phone: (303) 342-1080; email: <a href="/cdn-cgi/l/email-protection#4f272e2361252a213c2a210f292e2e61282039"><span class="__cf_email__" data-cfemail="0860696426626d667b6d66486e6969266f677e">[email protected]</span></a>.
(2) Meggitt and Pacific Scientific material identified in this
AD that are not incorporated by reference can be are available at
the contact information specified in paragraph (l)(3) of this AD.
(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 the AD specifies otherwise.
(i) Parker Meggitt Service Bulletin SB 25-1111432, Revision 002,
dated September 12, 2023.
(ii) [Reserved]
(3) For material identified in this AD, contact Parker Meggitt
Services, 1785 Voyager Avenue, Simi Valley, CA 93063; phone: (877)
666-0712; email: <a href="/cdn-cgi/l/email-protection#97c3f2f4ffc4e2e7e7f8e5e3d7faf2f0f0fee3e3b9f4f8fa"><span class="__cf_email__" data-cfemail="683c0d0b003b1d1818071a1c28050d0f0f011c1c460b0705">[email protected]</span></a>.
(4) You may view this material at the FAA, Office of the
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-
321, Fort Worth, TX 76177. For information on the availability of
this material at the FAA, call: (817) 222-5110.
(5) You may view this material at the National Archives and
Records Administration (NARA). For information on the availability
of this material at NARA, visit <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#4b2d39652225383b2e283f2224250b252a392a652c243d"><span class="__cf_email__" data-cfemail="90f6e2bef9fee3e0f5f3e4f9fffed0fef1e2f1bef7ffe6">[email protected]</span></a>.
Issued on December 18, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-02051 Filed 1-30-25; 8:45 am]
BILLING CODE 4910-13-P
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