Rule2025-12244
Airworthiness Directives; Embraer S.A. 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
July 1, 2025
Effective
August 5, 2025
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Embraer S.A. Model EMB-545 and EMB-550 airplanes. This AD was prompted by a jamming failure of the main door lock sensor. This AD requires repetitive main door sensor operational tests, repetitive lubrication of the main door sensor mechanism, and on condition actions. The FAA is issuing this AD to address the unsafe condition on these products.August 5, 2025.
Full Text
<html>
<head>
<title>Federal Register, Volume 90 Issue 124 (Tuesday, July 1, 2025)</title>
</head>
<body><pre>
[Federal Register Volume 90, Number 124 (Tuesday, July 1, 2025)]
[Rules and Regulations]
[Pages 27979-27981]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2025-12244]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2025-0476; Project Identifier MCAI-2024-00482-T;
Amendment 39-23068; AD 2025-13-02]
RIN 2120-AA64
Airworthiness Directives; Embraer S.A. Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Embraer S.A. Model EMB-545 and EMB-550 airplanes. This AD was prompted
by a jamming failure of the main door lock sensor. This AD requires
repetitive main door sensor operational tests, repetitive lubrication
of the main door sensor mechanism, and on condition actions. The FAA is
issuing this AD to address the unsafe condition on these
products.August 5, 2025.
DATES: This AD is effective August 5, 2025.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of August 5,
2025.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0476; 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 Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil
(ANAC) material identified in this AD, contact ANAC, Aeronautical
Products Certification Branch (GGCP), Rua Dr. Orlando Feirabend Filho,
230--Centro Empresarial Aquarius--Torre B--Andares 14 a 18, Parque
Residencial Aquarius, CEP 12.246-190--S[atilde]o Jos[eacute] dos
Campos--SP, Brazil; telephone 55 (12) 3203-6600; email <a href="/cdn-cgi/l/email-protection#5a2a3b391a663b7a32283f3c67" http: anac.gov">anac.gov</a>.br">pac@<a href="http://anac.gov">anac.gov</a>.br</a>;
website <a href="http://anac.gov">anac.gov</a>.br/en/. You may find this material on the ANAC website
at <a href="http://sistemas.anac.gov">sistemas.anac.gov</a>.br/certificacao/DA/DAE.asp.
<bullet> You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th St., Des
Moines, WA. For information on the availability of this material at the
FAA, call 206-231-3195. It is also available at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0476.
FOR FURTHER INFORMATION CONTACT: Hassan Ibrahim, Aviation Safety
Engineer, FAA, 2200 South 216th St., Des Moines, WA 98198; phone: 206-
231-3653; email: <a href="/cdn-cgi/l/email-protection#8fe7eefcfceee1a1e2a1e6edfdeee7e6e2cfe9eeeea1e8e0f9"><span class="__cf_email__" data-cfemail="6109001212000f4f0c4f0803130009080c210700004f060e17">[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 Embraer S.A. Model
EMB-545 and EMB-550 airplanes. The NPRM was published in the Federal
Register on March 26, 2025 (90 FR 13716). The NPRM was prompted by AD
2024-08-02, effective August 23, 2024 (ANAC AD 2024-08-02) (also
referred to as the MCAI), issued by ANAC, which is the aviation
authority for Brazil. The MCAI states there is a possibility of a
jamming failure of the main door lock sensor.
In the NPRM, the FAA proposed to require repetitive main door
sensor operational tests, repetitive lubrication of the main door
sensor mechanism, and on condition actions, as specified in ANAC AD
2024-08-02. The FAA is issuing this AD to address a false indication of
a locked door, even when it is only latched, resulting in a dormant
system failure and lack of cockpit indication of the door not locked
condition. The unsafe condition, if not addressed, could result in an
in-flight door opening due to an operational failure.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2025-0476.
Discussion of Final Airworthiness Directive
Comments
The FAA received no comments on the NPRM or on the determination of
the cost to the public.
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
[[Page 27980]]
as proposed. Accordingly, the FAA is issuing this AD to address the
unsafe condition on this product. Except for minor editorial changes,
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
ANAC AD 2024-08-02 specifies procedures for conducting repetitive
main door sensor operational tests, repetitive lubrication of the main
door sensor mechanism, and applicable on condition actions. (The
effective date of ANAC AD 2024-08-02 did not get translated to English.
The effective date is August 23, 2024.) On-condition actions include
adjusting or replacing the sensor or main door locked sensor support
and contacting Embraer for repair instructions. 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 296 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Labor cost Parts cost Cost per product Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 4 work-hours x $85 per hour $0 Up to $340................. Up to $100,640.
= $340.
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary on-
condition action 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 this on-condition action:
Estimated Costs of On-Condition Actions
------------------------------------------------------------------------
Labor cost Parts cost Cost per product
------------------------------------------------------------------------
Up to 7 work-hours x $85 per Up to $19,845.27.. Up to $20,440.27.
hour = $595.
------------------------------------------------------------------------
The FAA has received no definitive data on which to base the cost
estimates for the on-condition repairs specified in this AD.
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:
2025-13-02 Embraer S.A.: Amendment 39-23068; Docket No. FAA-2025-
0476; Project Identifier MCAI-2024-00482-T.
(a) Effective Date
This airworthiness directive (AD) is effective August 5, 2025.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Embraer S.A. Model EMB-545 and EMB-550
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 52, Doors.
(e) Unsafe Condition
This AD was prompted by a jamming failure of the main door lock
sensor. This jamming could result in a false indication of a locked
door, even when it is only latched, resulting in a dormant system
failure and lack of cockpit indication of the door not locked
condition. The unsafe condition, if not addressed, could result in a
door opening in flight due to an operational failure.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
[[Page 27981]]
(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, Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o
Civil (ANAC) AD 2024-08-02, effective August 23, 2024 (ANAC AD 2024-
08-02).
(h) Exceptions to ANAC AD 2024-08-02
(1) Where ANAC AD 2024-08-02 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where ANAC AD 2024-08-02 specifies on-condition actions,
this AD requires performing the applicable on-condition actions
before further flight.
(3) Where ANAC AD 2024-08-02 specifies to discard parts, this AD
does not require that action.
(4) Where paragraph (c) of ANAC AD 2024-08-02 specifies to
repeat the operational test ``each 12 months'', this AD requires
replacing that text with ``at intervals not to exceed 12 months''.
(5) Where paragraph (e) of ANAC AD 2024-08-02 specifies to
repeat the lubrication ``each 24 months'', this AD requires
replacing that text with ``at intervals not to exceed 24 months''.
(6) This AD does not adopt paragraph (f) of ANAC AD 2024-08-02.
(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#94d5d9dbd7d4f2f5f5baf3fbe2"><span class="__cf_email__" data-cfemail="8ccdc1c3cfcceaededa2ebe3fa">[email protected]</span></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 ANAC; or ANAC's authorized Designee. If
approved by the ANAC Designee, the approval must include the
Designee's authorized signature.
(j) Additional Information
For more information about this AD, contact Hassan Ibrahim,
Aviation Safety Engineer, FAA, 2200 South 216th St., Des Moines, WA
98198; phone: 206-231-3653; email: <a href="/cdn-cgi/l/email-protection#224a435151434c0c4f0c4b4050434a4b4f624443430c454d54"><span class="__cf_email__" data-cfemail="2c444d5f5f4d42024102454e5e4d4445416c4a4d4d024b435a">[email protected]</span></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) Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC)
AD 2024-08-02, effective August 23, 2024.
Note 1 to paragraph (k)(2)(i): The effective date of ANAC AD
2024-08-02 did not get translated to English. The effective date is
August 23, 2024.
(ii) [Reserved]
(3) For ANAC material identified in this AD, contact ANAC,
Aeronautical Products Certification Branch (GGCP), Rua Dr. Orlando
Feirabend Filho, 230--Centro Empresarial Aquarius--Torre B--Andares
14 a 18, Parque Residencial Aquarius, CEP 12.246-190--S[atilde]o
Jos[eacute] dos Campos--SP, Brazil; telephone 55 (12) 3203-6600;
email <a href="/cdn-cgi/l/email-protection#88f8e9ebc8b4e9a8e0faedeeb5" http: anac.gov">anac.gov</a>.br">pac@<a href="http://anac.gov">anac.gov</a>.br</a>; website <a href="http://anac.gov">anac.gov</a>.br/en/. You may find this
material on the ANAC website at <a href="http://sistemas.anac.gov">sistemas.anac.gov</a>.br/certificacao/
DA/DAE.asp.
(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="/cdn-cgi/l/email-protection#e0dc81c088928586dd" http: www.archives.gov federal-register cfr ibr-locationsoremailfr.inspection@nara.gov">www.archives.gov/federal-register/cfr/<span class="__cf_email__" data-cfemail="8be2e9f9a6e7e4e8eaffe2e4e5f8e4f9eee6eae2e7edf9a5e2e5f8fbeee8ffe2e4e5cbe5eaf9eaa5ece4fd">[email protected]</span></a>"><a href="http://www.archives.gov/federal-register/cfr/ibr-locationsoremailfr.inspection@nara.gov">www.archives.gov/federal-register/cfr/<span class="__cf_email__" data-cfemail="6b020919460704080a1f0204051804190e060a02070d19450205181b0e081f0204052b050a190a450c041d">[email protected]</span></a></a>.
Issued on June 18, 2025.
Steven W. Thompson,
Acting Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2025-12244 Filed 6-30-25; 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>Indexed from Federal Register on July 1, 2025.
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.