Airworthiness Directives; Saab AB, Support and Services (Formerly Known as Saab AB, Saab Aeronautics) Airplanes
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Issuing agencies
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB 340B airplanes. This AD was prompted by reports of excessive wear on certain starter generator brushes installed in the starter generator. This AD requires repetitive general visual inspections of the starter generator brushes installed in the starter generator and, depending on findings, replacement of the starter generator, and limits installation of affected generators, 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 94 (Tuesday, May 16, 2023)</title>
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[Federal Register Volume 88, Number 94 (Tuesday, May 16, 2023)]
[Rules and Regulations]
[Pages 31171-31174]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2023-10528]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1039; Project Identifier MCAI-2023-00580-T;
Amendment 39-22433; AD 2023-09-10]
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; request for comments.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Saab AB, Support and Services Model 340A (SAAB/SF340A) and SAAB 340B
airplanes. This AD was prompted by reports of excessive wear on certain
starter generator brushes installed in the starter generator. This AD
requires repetitive general visual inspections of the starter generator
brushes installed in the starter generator and, depending on findings,
replacement of the starter generator, and limits installation of
affected generators, 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 May 31, 2023.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 31,
2023.
The FAA must receive comments on this AD by June 30, 2023.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
<bullet> Federal eRulemaking Portal: Go to <a href="http://regulations.gov">regulations.gov</a>. Follow
the instructions for submitting comments.
<bullet> Fax: 202-493-2251.
<bullet> Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE, Washington, DC 20590.
[[Page 31172]]
<bullet> Hand Delivery: Deliver to Mail address above between 9
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1039; 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
street address for Docket Operations is listed above.
Material Incorporated by Reference:
<bullet> For 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#2061645360454153410e4555524f50410e4555"><span class="__cf_email__" data-cfemail="d49590a794b1b5a7b5fab1a1a6bba4b5fab1a1">[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 at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1039.
FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aerospace
Engineer, Large Aircraft Section, FAA, International Validation Branch,
2200 South 216th St., Des Moines, WA 98198; telephone 206-231-3220;
email <a href="/cdn-cgi/l/email-protection#580b3039302a3935761c39363d2b303539363c31183e3939763f372e"><span class="__cf_email__" data-cfemail="5f0c373e372d3e32711b3e313a2c37323e313b361f393e3e71383029">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written data, views, or arguments
about this final rule. Send your comments to an address listed under
ADDRESSES. Include ``Docket No. FAA-2023-1039; Project Identifier MCAI-
2023-00580-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the final rule, explain the
reason for any recommended change, and include supporting data. The FAA
will consider all comments received by the closing date and may amend
this final rule because of those comments.
Except for Confidential Business Information (CBI) as described in
the following paragraph, and other information as described in 14 CFR
11.35, the FAA will post all comments received, without change, to
<a href="http://regulations.gov">regulations.gov</a>, including any personal information you provide. The
agency will also post a report summarizing each substantive verbal
contact received about this final rule.
Confidential Business Information
CBI is commercial or financial information that is both customarily
and actually treated as private by its owner. Under the Freedom of
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public
disclosure. If your comments responsive to this AD contain commercial
or financial information that is customarily treated as private, that
you actually treat as private, and that is relevant or responsive to
this AD, it is important that you clearly designate the submitted
comments as CBI. Please mark each page of your submission containing
CBI as ``PROPIN.'' The FAA will treat such marked submissions as
confidential under the FOIA, and they will not be placed in the public
docket of this AD. Submissions containing CBI should be sent to Shahram
Daneshmandi, Aerospace Engineer, Large Aircraft Section, FAA,
International Validation Branch, 2200 South 216th St., Des Moines, WA
98198; telephone 206-231-3220; email <a href="/cdn-cgi/l/email-protection#55063d343d2734387b11343b30263d38343b313c153334347b323a23"><span class="__cf_email__" data-cfemail="095a6168617b6864274d68676c7a616468676d60496f6868276e667f">[email protected]</span></a>. Any
commentary that the FAA receives which is not specifically designated
as CBI will be placed in the public docket for this rulemaking.
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2023-0073, dated April 5, 2023 (EASA
AD 2023-0073) (also referred to as the MCAI), to correct an unsafe
condition for all Saab AB, Support and Services Model 340A (SAAB/
SF340A) and SAAB 340B airplanes. The MCAI states that reports of
finding excessive wear on certain starter generator brushes part number
(P/N) 23080-2017 installed in DC starter generator P/N 23080-031 MOD M.
The starter generator brushes produced in the years 2021 and later in
particular have shown less than expected brush life (in some cases less
than 200 flight hours). The root cause of excessive wear on these
starter generator brushes remains under investigation. EASA considers
its AD to be an interim action, and further AD action may follow. See
EASA AD 2023-0073 for additional background information.
The FAA is issuing this AD to address excessive wear on the starter
generator brushes. This condition, if not detected and corrected, could
lead to starter generator failure(s), possibly resulting in total loss
of generated electrical power with consequent reduced functional
capability of the airplane.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1039.
Related Service Information Under 1 CFR Part 51
EASA AD 2023-0073 specifies procedures for repetitive general
visual inspections to measure the wear of the starter generator brushes
P/N 23080-2017 installed in the starter generators P/N 23080-031 MOD M
and 23080-032 MOD M, calculation of the projected hours of brush life
remaining for the generator; and replacement of the starter generator
if there is insufficient brush life remaining. EASA AD 2023-0073 also
specifies that installation of affected generators is allowed provided
certain conditions are met.
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.
FAA's Determination
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 is issuing this AD after determining that the
unsafe condition described previously is likely to exist or develop on
other products of the same type design.
Requirements of This AD
This AD requires accomplishing the actions specified in EASA AD
2023-0073 described previously, except for any differences identified
as exceptions in the regulatory text of this AD.
Explanation of Required Compliance Information
In the FAA's ongoing efforts to improve the efficiency of the AD
process, the FAA developed a process to use some civil aviation
authority (CAA) ADs as the primary source of information for compliance
with requirements for corresponding FAA ADs. The FAA has been
coordinating this process with manufacturers and CAAs. As a result,
EASA AD 2023-0073 is incorporated by reference in this AD. This AD
requires compliance with EASA AD 2023-0073 in its entirety through that
incorporation, except for any differences identified as exceptions in
the regulatory text of this AD. Using common terms that are the same as
the heading of a particular section in EASA AD 2023-0073 does not mean
that operators need comply only with that section. For example, where
the AD requirement refers to ``all required actions and compliance
times,''
[[Page 31173]]
compliance with this AD requirement is not limited to the section
titled ``Required Action(s) and Compliance Time(s)'' in EASA AD 2023-
0073. Service information required by EASA AD 2023-0073 for compliance
will be available at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2023-1039
after this AD is published.
Interim Action
The FAA considers this AD to be an interim action. If final action
is later identified, the FAA might consider further rulemaking then.
FAA's Justification for Immediate Adoption and Determination of the
Effective Date
Section 553(b)(3)(B) of the Administrative Procedure Act (APA) (5
U.S.C. 551 et seq.) authorizes agencies to dispense with notice and
comment procedures for rules when the agency, for ``good cause,'' finds
that those procedures are ``impracticable, unnecessary, or contrary to
the public interest.'' Under this section, an agency, upon finding good
cause, may issue a final rule without providing notice and seeking
comment prior to issuance. Further, section 553(d) of the APA
authorizes agencies to make rules effective in less than thirty days,
upon a finding of good cause.
An unsafe condition exists that requires the immediate adoption of
this AD without providing an opportunity for public comments prior to
adoption. The FAA has found that the risk to the flying public
justifies forgoing notice and comment prior to adoption of this rule
because excessive wear on the starter generator brushes and the unusual
conditions at the brush attachment location could lead to starter
generator failure(s), possibly resulting in total loss of generated
electrical power with consequent reduced functional capability of the
airplane. Accordingly, notice and opportunity for prior public comment
are impracticable and contrary to the public interest pursuant to 5
U.S.C. 553(b)(3)(B).
In addition, the FAA finds that good cause exists pursuant to 5
U.S.C. 553(d) for making this amendment effective in less than 30 days,
for the same reasons the FAA found good cause to forgo notice and
comment.
Regulatory Flexibility Act (RFA)
The requirements of the RFA do not apply when an agency finds good
cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and
comment. Because the FAA has determined that it has good cause to adopt
this rule without notice and comment, RFA analysis is not required.
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
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
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Inspection............................ 1 work-hour x $85 per $0 $85 per $6,715 per
hour = $85 per. inspection inspection
inspection.............. cycle cycle
cycle...................
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The FAA estimates the following costs to do any necessary on-
condition actions that would be required based on the results of the
inspections. The FAA has no way of determining the number of aircraft
that might need these on-condition actions:
Estimated Costs of On-Condition Actions
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Cost per
Action Labor cost Parts cost product
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Replace the starter generator................. 2 work-hours x $85 per hour = $1,271 $1,441
$170.
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Paperwork Reduction Act
A federal agency may not conduct or sponsor, and a person is not
required to respond to, nor shall a person be subject to a penalty for
failure to comply with a collection of information subject to the
requirements of the Paperwork Reduction Act unless that collection of
information displays a currently valid OMB Control Number. The OMB
Control Number for this information collection is 2120-0056. Public
reporting for this collection of information is estimated to take
approximately 1 hour per response, including the time for reviewing
instructions, searching existing data sources, gathering and
maintaining the data needed, and completing and reviewing the
collection of information. All responses to this collection of
information are mandatory. Send comments regarding this burden estimate
or any other aspect of this collection of information, including
suggestions for reducing this burden, to: Information Collection
Clearance Officer, Federal Aviation Administration, 10101 Hillwood
Parkway, Fort Worth, TX 76177-1524.
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
[[Page 31174]]
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, and
(2) Will not affect intrastate aviation in Alaska.
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:
2023-09-10 Saab AB, Support and Services (Formerly Known as Saab AB,
Saab Aeronautics): Amendment 39-22433; Docket No. FAA-2023-1039;
Project Identifier MCAI-2023-00580-T.
(a) Effective Date
This airworthiness directive (AD) is effective May 31, 2023.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Saab AB, Support and Services (Formerly
Known as Saab AB, Saab Aeronautics) Model 340A (SAAB/SF340A) and
SAAB 340B airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 24, Electrical
Power.
(e) Unsafe Condition
This AD was prompted by the reports of excessive wear on certain
starter generator brushes installed in the starter generator. The
FAA is issuing this AD to address the problem associated with
excessive wear on the starter generator brushes and the unusual
conditions at the brush attachment location. This condition, if not
detected and corrected, could lead to starter generator failure(s),
possibly resulting in total loss of generated electrical power with
consequent reduced functional capability of the airplane.
(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 2023-0073, dated April 5, 2023 (EASA AD
2023-0073).
(h) Exceptions to EASA AD 2023-0073
(1) Where EASA AD 2023-0073 refers to its effective date, this
AD requires using the effective date of this AD.
(2) This AD does not adopt the ``Remarks'' section of EASA AD
2023-0073.
(3) Paragraph (5) of EASA AD 2023-0073 specifies to report
inspection results to SAAB AB within a certain compliance time. For
this AD, report inspection results at the applicable time specified
in paragraph (h)(3)(i) or (ii) of this AD.
(i) If the inspection was done on or after the effective date of
this AD: Submit the report within 30 days after the inspection.
(ii) If the inspection was done before the effective date of
this AD: Submit the report within 30 days after the effective date
of 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 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#a0998de1f6f38de1e9f28d9793908de1edefe3e0c6c1c18ec7cfd6"><span class="__cf_email__" data-cfemail="c3faee829590ee828a91eef4f0f3ee828e8c8083a5a2a2eda4acb5">[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.
(3) Required for Compliance (RC): Except as required by
paragraph (i)(2) of this AD, if any service information contains
procedures or tests that are identified as RC, those procedures and
tests must be done to comply with this AD; any procedures or tests
that are not identified as RC are recommended. Those procedures and
tests 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 and tests identified as RC can be done and the
airplane can be put back in an airworthy condition. Any
substitutions or changes to procedures or tests identified as RC
require approval of an AMOC.
(j) Additional Information
For more information about this AD, contact Shahram Daneshmandi,
Aerospace Engineer, Large Aircraft Section, FAA, International
Validation Branch, 2200 South 216th St., Des Moines, WA 98198;
telephone 206-231-3220; email <a href="/cdn-cgi/l/email-protection#34675c555c4655591a70555a51475c59555a505d745255551a535b42"><span class="__cf_email__" data-cfemail="fead969f968c9f93d0ba9f909b8d96939f909a97be989f9fd0999188">[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 2023-0073,
dated April 5, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0073, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#5312172013363220327d3626213c23327d3626"><span class="__cf_email__" data-cfemail="9edfdaeddefbffedffb0fbebecf1eeffb0fbeb">[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 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#7f190d5116110c0f1a1c0b1610113f111e0d1e51181009"><span class="__cf_email__" data-cfemail="96f0e4b8fff8e5e6f3f5e2fff9f8d6f8f7e4f7b8f1f9e0">[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 May 8, 2023.
Gaetano A. Sciortino,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2023-10528 Filed 5-12-23; 4:15 pm]
BILLING CODE 4910-13-P
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