Rule2024-21178
Airworthiness Directives; ATR-GIE Avions de Transport Régional 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 18, 2024
Effective
October 23, 2024
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2021-17- 02, which applied to all ATR-GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and -320 airplanes. AD 2021-17-02 required a one-time inspection for discrepancies of the wire bundles between the left- and right-hand angle of attack (AOA) probes and the crew alerting computer, and, depending on findings, applicable corrective actions. AD 2021-17-02 also required, for certain airplanes, modifying the captain stick shaker wiring, and for all airplanes, revising the existing aircraft flight manual (AFM) and applicable corresponding operational procedures to incorporate procedures for the stick pusher/shaker. Since the FAA issued AD 2021-17-02, additional modification of the affected wiring for certain airplanes was developed. This AD retains all of the requirements of AD 2021-17-02 and requires installing a new AOA power supply unit and removing the AFM amendment; 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 89 Issue 181 (Wednesday, September 18, 2024)</title>
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[Federal Register Volume 89, Number 181 (Wednesday, September 18, 2024)]
[Rules and Regulations]
[Pages 76411-76413]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2024-21178]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2023-1987; Project Identifier MCAI-2023-00807-T;
Amendment 39-22806; AD 2024-15-14]
RIN 2120-AA64
Airworthiness Directives; ATR-GIE Avions de Transport
R[eacute]gional Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2021-17-
02, which applied to all ATR-GIE Avions de Transport R[eacute]gional
Model ATR42-200, -300, and -320 airplanes. AD 2021-17-02 required a
one-time inspection for discrepancies of the wire bundles between the
left- and right-hand angle of attack (AOA) probes and the crew alerting
computer, and, depending on findings, applicable corrective actions. AD
2021-17-02 also required, for certain airplanes, modifying the captain
stick shaker wiring, and for all airplanes, revising the existing
aircraft flight manual (AFM) and applicable corresponding operational
procedures to incorporate procedures for the stick pusher/shaker. Since
the FAA issued AD 2021-17-02, additional modification of the affected
wiring for certain airplanes was developed. This AD retains all of the
requirements of AD 2021-17-02 and requires installing a new AOA power
supply unit and removing the AFM amendment; 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 23, 2024.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 23,
2024.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1987; 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 identified 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#17565364577276647639726265786776397262"><span class="__cf_email__" data-cfemail="f5b4b186b590948694db9080879a8594db9080">[email protected]</span></a>; website easa.europa.eu. You may find
this material on the EASA website ad.easa.europa.eu.
<bullet> You may view this material at the FAA, Airworthiness
Products Section, Operational Safety Branch, 2200 South 216th Street,
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-2023-1987.
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#104378717862717d3e54717e7563787d717e7479507671713e777f66"><span class="__cf_email__" data-cfemail="75261d141d0714185b31141b10061d18141b111c351314145b121a03">[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 2021-17-02, Amendment 39-21685 (86 FR
48490, August 31, 2021) (AD 2021-17-02). AD 2021-17-02 applied to all
ATR-GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and
-320 airplanes. AD 2021-17-02 required a one-time inspection for
discrepancies of the wire bundles between the left- and right-hand AOA
probes and the crew alerting computer, and, depending on findings,
applicable corrective actions. AD 2021-17-02 also required for certain
airplanes, modifying the captain stick shaker wiring, and for all
airplanes, revising the existing AFM and applicable corresponding
operational procedures to incorporate procedures for the stick pusher/
shaker. The FAA issued AD 2021-17-02 to address false activation of the
stall warning system due to wiring damage on the wire bundle between an
AOA probe and the crew alerting computer, which could result in loss of
control of the airplane during take-off and landing phases.
The NPRM published in the Federal Register on October 5, 2023 (88
FR 69102). The NPRM was prompted by AD 2023-0134, dated July 5, 2023
(EASA AD 2023-0134), issued by EASA, which is the Technical Agent for
the Member States of the European Union. EASA AD 2023-0134 states final
modification instructions of the affected wiring were developed.
In the NPRM, the FAA proposed to require installing a new AOA power
supply unit and revising the existing AFM, as specified in EASA AD
2023-0134.
The FAA issued a supplemental notice of proposed rulemaking (SNPRM)
to amend 14 CFR part 39 to supersede AD 2021-17-02. The SNPRM published
in the Federal Register on May 21, 2024 (89 FR 44568). The SNPRM was
prompted by additional modification of the affected wiring for certain
airplanes, and by the issuance of EASA AD 2023-0191, dated November 2,
2023 (EASA AD 2023-0191) (also referred to as the MCAI). In the SNPRM,
the FAA proposed to retain all of the requirements of AD 2021-17-02.
The NPRM also proposed to require installing a new AOA power supply
unit and removing the AFM amendment. The FAA is issuing this AD to
address the unsafe condition on these products.
[[Page 76412]]
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2023-1987.
Discussion of Final Airworthiness Directive
Comments
The FAA received one comment, from Air Line Pilots Association,
International (ALPA), who supported the SNPRM without change.
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
comment 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
this AD is adopted as proposed in the SNPRM. None of the changes will
increase the economic burden on any operator.
Material Incorporated by Reference Under 1 CFR Part 51
EASA AD 2023-0191 specifies procedures for a one-time inspection
for discrepancies of the wire bundles between the left- and right-hand
AOA probes and the crew alerting computer, and, depending on findings,
applicable corrective actions (repair). EASA AD 2023-0191 also
specifies procedures, for certain airplanes, for modifying the captain
stick shaker wiring, and for all airplanes, revising the existing AFM
to incorporate procedures for the stick pusher/shaker. Finally, EASA AD
2023-0191 specifies procedures for installing the AOA power supply
unit, removing the AFM amendment, and accomplishing additional
modification of the affected wiring.
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 26 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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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Retained actions from AD 2021-17- Up to 14 work-hours $100 Up to $1,290....... Up to $33,540.
02. x $85 per hour =
Up to $1,190.
New actions...................... 50 work-hours x $85 0 $4,250............. $110,500.
per hour = $4,250.
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The FAA has received no definitive data on which to base the cost
estimates for the on-condition actions specified in this AD.
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 2021-17-02, Amendment 39-21685 (86
FR 48490, August 31, 2021); and
0
b. Adding the following new Airworthiness Directive:
2024-15-14 ATR--GIE Avions de Transport R[eacute]gional: Amendment
39-22806; Docket No. FAA-2023-1987; Project Identifier MCAI-2023-
00807-T.
(a) Effective Date
This airworthiness directive (AD) is effective October 23, 2024.
(b) Affected ADs
This AD replaces AD 2021-17-02, Amendment 39-21685 (86 FR 48490,
August 31, 2021) (AD 2021-17-02).
(c) Applicability
This AD applies to all ATR-GIE Avions de Transport
R[eacute]gional Model ATR42-200, -300, and -320 airplanes,
certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 31, Instruments.
(e) Unsafe Condition
This AD was prompted by false activation of the stall warning
system due to wiring damage on the wire bundle between an angle of
attack (AOA) probe and the crew alerting computer, and the
development of additional wiring modifications and an aircraft
flight manual (AFM) update to address the unsafe condition. The FAA
is issuing this AD to address this condition, which could result in
loss of control of the airplane during take-off and landing phases.
[[Page 76413]]
(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, European Union Aviation Safety Agency (EASA) AD
2023-0191, dated November 2, 2023 (EASA AD 2023-0191).
(h) Exceptions to EASA AD 2023-0191
(1) Where EASA AD 2023-0191 refers to October 27, 2020 (the
effective date of EASA AD 2020-0221), this AD requires using
December 3, 2020 (the effective date of AD 2020-23-13, Amendment 39-
21330 (85 FR 73407, November 18, 2020)).
(2) Where EASA AD 2023-0191 refers to February 2, 2021 (the
effective date of EASA AD 2021-0024), this AD requires using October
5, 2021 (the effective date of AD 2021-17-02).
(3) Where paragraph (2) of EASA AD 2023-0191 refers to
``discrepancies,'' for this AD, discrepancies include, but are not
limited to, wire damage, missing or damaged conduits, and incorrect
routing of wiring and conduits.
(4) Where paragraph (8) of EASA AD 2023-0191 specifies
``accomplish the additional work as identified in'' replace that
text with ``accomplish the additional work as identified in section
`1--ADDITIONAL WORK.' ''
(5) Where paragraphs (4) and (5) of EASA AD 2023-0191 specify to
``inform all flight crews, and, thereafter, operate the aeroplane
accordingly,'' this AD does not require those actions, as those
actions are already required by existing FAA operating regulations
(see 14 CFR 91.9, 91.505, and 121.137).
(6) Where EASA AD 2023-0191 refers to its effective date, this
AD requires using the effective date of this AD.
(7) Where EASA AD 2023-0191 refers to July 19, 2023 (the
effective date of EASA AD 2023-0134), this AD requires using the
effective date of this AD.
(8) This AD does not adopt the ``Remarks'' section of EASA AD
2023-0191.
(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, mail it to the address identified
in paragraph (j) of this AD or email to: <a href="/cdn-cgi/l/email-protection#9aa3b7dbccc9b7dbd3c8b7ada9aab7dbd7d5d9dafcfbfbb4fdf5ec"><span class="__cf_email__" data-cfemail="427b6f0314116f030b106f7571726f030f0d01022423236c252d34">[email protected]</span></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 EASA; or ATR-GIE Avions de Transport
R[eacute]gional's 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#a8fbc0c9c0dac9c586ecc9c6cddbc0c5c9c6ccc1e8cec9c986cfc7de"><span class="__cf_email__" data-cfemail="f3a09b929b81929eddb7929d96809b9e929d979ab3959292dd949c85">[email protected]</span></a>.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) 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) European Union Aviation Safety Agency (EASA) AD 2023-0191,
dated November 2, 2023.
(ii) [Reserved]
(3) For EASA AD 2023-0191, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#edaca99ead888c9e8cc388989f829d8cc38898"><span class="__cf_email__" data-cfemail="d19095a291b4b0a2b0ffb4a4a3bea1b0ffb4a4">[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
Street, 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="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#2543570b4c4b56554046514c4a4b654b4457440b424a53"><span class="__cf_email__" data-cfemail="b7d1c599ded9c4c7d2d4c3ded8d9f7d9d6c5d699d0d8c1">[email protected]</span></a>.
Issued on September 12, 2024.
Victor Wicklund,
Deputy Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2024-21178 Filed 9-17-24; 8:45 am]
BILLING CODE 4910-13-P
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</html>Indexed from Federal Register on September 18, 2024.
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