Rule2023-19899
Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes
Primary source
Metadata and text below are from the Federal Register, a public-domain U.S. government work. Always verify the official published version before relying on it for any legal matter.
Published
September 14, 2023
Effective
October 19, 2023
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB 340B airplanes. This AD was prompted by reports of a high number of events related to stall warnings upon landing, following introduction of the ice speed function within the stall warning system. This AD requires modification of the stall warning/identification system, as specified in a European Union Aviation Safety Agency (EASA) 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 177 (Thursday, September 14, 2023)</title>
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[Federal Register Volume 88, Number 177 (Thursday, September 14, 2023)]
[Rules and Regulations]
[Pages 63009-63011]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-19899]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1215; Project Identifier MCAI-2023-00196-T;
Amendment 39-22528; AD 2023-17-02]
RIN 2120-AA64
Airworthiness Directives; Saab AB, Support and Services (Formerly
Known as Saab AB, Saab Aeronautics) 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
certain Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB
340B airplanes. This AD was prompted by reports of a high number of
events related to stall warnings upon landing, following introduction
of the ice speed function within the stall warning system. This AD
requires modification of the stall warning/identification system, as
specified in a European Union Aviation Safety Agency (EASA) 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 October 19, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 19,
2023.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1215; 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 EASA material incorporated by reference in this AD,
contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone
+49 221 8999 000; email <a href="/cdn-cgi/l/email-protection#fabbbe89ba9f9b899bd49f8f88958a9bd49f8f"><span class="__cf_email__" data-cfemail="9cddd8efdcf9fdeffdb2f9e9eef3ecfdb2f9e9">[email protected]</span></a>; website easa.europa.eu. You
may find this material on the EASA website at ad.easa.europa.eu.
<bullet> You may view this service information 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-2023-1215.
FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aviation Safety
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590;
telephone 206-231-3220; email <a href="/cdn-cgi/l/email-protection#86d5eee7eef4e7eba8c2e7e8e3f5eeebe7e8e2efc6e0e7e7a8e1e9f0"><span class="__cf_email__" data-cfemail="66350e070e14070b4822070803150e0b0708020f2600070748010910">[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 certain SAAB/SF340A and
SAAB 340B airplanes. The NPRM published in the Federal Register on June
20, 2023 (88 FR 39794). The NPRM was prompted by AD 2022-0216R1, dated
February 1, 2023; corrected February 2, 2023, issued by EASA, which is
the Technical Agent for the Member States of the European Union (EASA
AD 2022-0216R1) (also referred to as the MCAI). The MCAI states that
following the introduction of the ice speed function within the SAAB
340 stall warning system, a high number of events have been reported
related to stall warnings upon landing. Subsequent investigation
determined that the margin to stall warning is lower when ice speed is
ON than with ice speed OFF. This condition, if not corrected, could
lead to inappropriate stall warnings during the landing phase and
result in increased pilot workload during a critical phase of flight.
In the NPRM, the FAA proposed to require accomplishing the actions
specified in EASA AD 2022-0216R1, except for any differences identified
as exceptions in the regulatory text of this AD. The FAA is issuing
this AD to address the unsafe condition on these products.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1215.
[[Page 63010]]
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
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 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, 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
EASA AD 2022-0216R1 specifies procedures for modifying the stall
warning/identification system to introduce an ice speed cancel logic.
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 ADDRESSES.
Costs of Compliance
The FAA estimates that this AD affects 79 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
Estimated Costs for Required Actions
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Labor cost Parts cost Cost per product Cost on U.S. operators
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Up to 30 work-hours x $85 per $7,900 Up to $10,450.............. Up to $825,550.
hour = $2,550.
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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:
2023-17-02 Saab AB, Support and Services (Formerly Known as Saab AB,
Saab Aeronautics): Amendment 39-22528; Docket No. FAA-2023-1215;
Project Identifier MCAI-2023-00196-T.
(a) Effective Date
This airworthiness directive (AD) is effective October 19, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Saab AB, Support and Services (formerly known
as Saab AB, Saab Aeronautics) Model 340A (SAAB/SF340A) and SAAB 340B
airplanes, certificated in any category, as identified in European
Union Aviation Safety Agency (EASA) AD 2022-0216R1, dated February
1, 2023; corrected February 2, 2023 (EASA AD 2022-0216R1).
(d) Subject
Air Transport Association (ATA) of America Code 27, Flight
controls.
(e) Unsafe Condition
This AD was prompted by reports of a high number of events
related to stall warnings upon landing, following introduction of
the ice speed function within the stall warning system. The FAA is
issuing this AD to address a margin to stall warning that is lower
when ice speed is ON than with ice speed OFF. The unsafe condition,
if not addressed, could lead to inappropriate stall warnings during
the landing phase and result in increased pilot workload during a
critical phase of flight.
(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, EASA AD 2022-0216R1.
(h) Exceptions to EASA AD 2022-0216R1
(1) Where EASA AD 2022-0216R1 refers to November 16, 2022 (the
effective date of EASA AD 2022-0216), this AD requires using the
effective date of this AD.
(2) The ``Remarks'' section of EASA AD 2022-0216R1 does not
apply to this AD.
(i) Additional AD Provisions
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager,
International Validation Branch, FAA, has the authority to approve
AMOCs for this AD, if requested using the procedures found in 14 CFR
39.19. In accordance with 14 CFR 39.19, send your request to your
principal inspector or responsible Flight Standards Office, as
appropriate. If sending information directly to the International
Validation Branch, send
[[Page 63011]]
it to the attention of the person identified in paragraph (j) of
this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#bb8296faede896faf2e9968c888b96faf6f4f8fbdddada95dcd4cd"><span class="__cf_email__" data-cfemail="083125495e5b2549415a253f3b38254945474b486e6969266f677e">[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 EASA; or Saab AB, Support and Services'
EASA Design Organization Approval (DOA). If approved by the DOA, the
approval must include the DOA-authorized signature.
(j) Additional Information
For more information about this AD, contact Shahram Daneshmandi,
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410,
Westbury, NY 11590; telephone 206-231-3220; email
<a href="/cdn-cgi/l/email-protection#4f1c272e273d2e22610b2e212a3c27222e212b260f292e2e61282039"><span class="__cf_email__" data-cfemail="23704b424b51424e0d67424d46504b4e424d474a634542420d444c55">[email protected]</span></a>.
(k) 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) European Union Aviation Safety Agency (EASA) AD 2022-0216R1,
dated February 1, 2023; corrected February 2, 2023.
(ii) [Reserved]
(3) For EASA AD 2022-0216R1, contact EASA, Konrad-Adenauer-Ufer
3, 50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#c58481b685a0a4b6a4eba0b0b7aab5a4eba0b0"><span class="__cf_email__" data-cfemail="1f5e5b6c5f7a7e6c7e317a6a6d706f7e317a6a">[email protected]</span></a>; website easa.europa.eu. You may find this EASA
AD on the EASA website at ad.easa.europa.eu.
(4) You may view this service information 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#791f0b5710170a091c1a0d1016173917180b18571e160f"><span class="__cf_email__" data-cfemail="583e2a7631362b283d3b2c3137361836392a39763f372e">[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 17, 2023.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-19899 Filed 9-13-23; 8:45 am]
BILLING CODE 4910-13-P
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