Rule2021-18704
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
August 31, 2021
Effective
October 5, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is superseding Airworthiness Directive (AD) 2020-23- 13, which applied to all ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and -320 airplanes. AD 2020-23-13 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. This AD continues to require the actions in AD 2020-23-13, and also requires 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, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by false activation of the stall warning system due to wiring damage on the wire bundle between an AOA probe and the crew alerting computer, and the development of a wiring modification and AFM update to address the unsafe condition. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 86 Issue 166 (Tuesday, August 31, 2021)</title>
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[Federal Register Volume 86, Number 166 (Tuesday, August 31, 2021)]
[Rules and Regulations]
[Pages 48490-48493]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-18704]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0366; Project Identifier MCAI-2021-00080-T;
Amendment 39-21685; AD 2021-17-02]
RIN 2120-AA64
Airworthiness Directives; ATR--GIE Avions de Transport
R[eacute]gional Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2020-23-
13, which applied to all ATR--GIE Avions de Transport R[eacute]gional
Model ATR42-200, -300, and -320 airplanes. AD 2020-23-13 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.
This AD continues to require the actions in AD 2020-23-13, and also
requires 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, as specified in a
European Union Aviation Safety Agency (EASA) AD, which is incorporated
by reference. This AD was prompted by false activation of the stall
warning system due to wiring damage on the wire bundle between an AOA
probe and the crew alerting computer, and the development of a wiring
modification and AFM update to address the unsafe condition. The FAA is
issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective October 5, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of October 5,
2021.
ADDRESSES: For material incorporated by reference (IBR) in this AD,
contact
[[Page 48491]]
EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221
8999 000; email <a href="/cdn-cgi/l/email-protection#7332370033161200125d1606011c03125d1606"><span class="__cf_email__" data-cfemail="e5a4a196a580849684cb8090978a9584cb8090">[email protected]</span></a>; internet www.easa.europa.eu. You
may find this IBR material on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. You may view this IBR 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 in the AD
docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for
and locating Docket No. FAA-2021-0366.
Examining the AD Docket
You may examine the AD docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2021-
0366; 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.
FOR FURTHER INFORMATION CONTACT: Shahram Daneshmandi, Aerospace
Engineer, Large Aircraft Section, International Validation Branch, FAA,
2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-
3220; email: <a href="/cdn-cgi/l/email-protection#b6c5ded7dec4d7db98d2d7d8d3c5dedbd7d8d2dff6d0d7d798d1d9c0"><span class="__cf_email__" data-cfemail="72011a131a00131f5c16131c17011a1f131c161b321413135c151d04">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Background
EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2021-0024, dated January 19, 2021
(EASA AD 2021-0024) (also referred to as the Mandatory Continuing
Airworthiness Information, or the MCAI), to correct an unsafe condition
for all ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -
300, and -320 airplanes.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 to supersede AD 2020-23-13, Amendment 39-21330 (85 FR
73407, November 18, 2020) (AD 2020-23-13). AD 2020-23-13 applied to all
ATR--GIE Avions de Transport R[eacute]gional Model ATR42-200, -300, and
-320 airplanes. The NPRM published in the Federal Register on May 13,
2021 (86 FR 26195). The NPRM was prompted by false activation of the
stall warning system due to wiring damage on the wire bundle between an
AOA probe and the crew alerting computer, and the development of a
wiring modification and AFM update to address the unsafe condition. The
NPRM proposed to continue to require the actions in AD 2020-23-13, and
also proposed to require 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, as specified in EASA AD 2021-
0024.
The FAA is issuing this AD to address false activation of the stall
warning system, which could result in loss of control of the airplane
during take-off and landing phases. See the MCAI for additional
background information.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The FAA has considered the comment
received. The Air Line Pilots Association, International (ALPA)
indicated its support for the NPRM.
Explanation of Changes to This AD
The FAA has added paragraph (h)(7) of this AD to clarify what
``discrepancies'' are since the ATR Airworthiness Operators Message
(AOM) referred to in EASA AD 2021-0024 does not use the word
``discrepancy.''
The FAA has revised paragraph (h)(4)(ii) of this AD to clarify
that, for inspections done on or before December 3, 2020, those reports
must be submitted ``within 30 days after December 3, 2020.'' In the
proposed AD, the FAA inadvertently stated that the reports were to be
submitted ``within 30 days after the effective date of this AD.''
However, this requirement is retained from AD 2020-23-13 and the FAA
intends for the compliance time to remain the same.
Conclusion
The FAA reviewed the relevant data, considered the comment
received, and determined that air safety and the public interest
require adopting this final rule with the changes described previously
and minor editorial changes. The FAA has determined that these minor
changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for addressing the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
The FAA also determined that these changes will not increase the
economic burden on any operator or increase the scope of this final
rule.
Related Service Information Under 1 CFR Part 51
EASA AD 2021-0024 describes procedures for a one-time detailed
visual inspection of the wire bundles between the left- and right-hand
AOA probes and the crew alerting computer for discrepancies (including,
but not limited to, wire damage, missing or damaged conduits, and
incorrect routing of wiring and conduits), and, depending on findings,
applicable corrective actions. EASA AD 2021-0024 also describes
procedures for modifying the captain stick shaker wiring, and amending
the systems limitations section of the applicable AFM to incorporate
procedures for the stick pusher/shaker. 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 2020-23- Up to 10 work-hours $0 Up to $850......... Up to $22,100.
13. x $85 per hour =
Up to $850.
New proposed actions............. 4 work-hours x $85 $100 $440............... $11,440.
per hour = $340.
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* Table does not include estimated costs for reporting.
[[Page 48492]]
The FAA estimates that it would take about 1 work-hour per product
to comply with the proposed reporting requirement in this AD. The
average labor rate is $85 per hour. Based on these figures, the FAA
estimates the cost of reporting the inspection results on U.S.
operators to be $2,210, or $85 per product.
The FAA has received no definitive data on which to base the cost
estimates for the on-condition actions specified in this AD.
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 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 current valid OMB control number. The control
number for the collection of information required by this AD is 2120-
0056. The paperwork cost associated with this AD has been detailed in
the Costs of Compliance section of this document and includes time for
reviewing instructions, as well as completing and reviewing the
collection of information. Therefore, all reporting associated with
this AD is mandatory. Comments concerning the accuracy of this burden
and suggestions for reducing the burden should be directed to the
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 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.
Adoption of 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 (AD) 2020-23-13, Amendment 39-21330
(85 FR 73407, November 18, 2020); and
0
b. Adding the following new AD:
2021-17-02 ATR--GIE Avions de Transport R[eacute]gional: Amendment
39-21685; Docket No. FAA-2021-0366; Project Identifier MCAI-2021-
00080-T.
(a) Effective Date
This airworthiness directive (AD) is effective October 5, 2021.
(b) Affected ADs
This AD replaces AD 2020-23-13, Amendment 39-21330 (85 FR 73407,
November 18, 2020) (AD 2020-23-13).
(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) Reason
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 a wiring modification and 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.
(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
2021-0024, dated January 19, 2021 (EASA AD 2021-0024).
(h) Exceptions to EASA AD 2021-0024
(1) Where EASA AD 2021-0024 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where EASA AD 2021-0024 refers to ``the effective date of
EASA AD 2020-0221,'' this AD requires using December 3, 2020 (the
effective date of AD 2020-23-13).
(3) The ``Remarks'' section of EASA AD 2021-0024 does not apply
to this AD.
(4) Paragraph (3) of EASA AD 2021-0024 specifies to report
inspection results to ATR--GIE Avions de Transport R[eacute]gional
within a certain compliance time. For this AD, report inspection
results at the applicable time specified in paragraph (h)(4)(i) or
(ii) of this AD.
(i) If the inspection was done on or after December 3, 2020 (the
effective date of AD 2020-23-13): Submit the report within 30 days
after the inspection.
(ii) If the inspection was done before December 3, 2020 (the
effective date of AD 2020-23-13): Submit the report within 30 days
after December 3, 2020.
(5) Paragraphs (5) and (6) of EASA AD 2021-0024 specify amending
``the applicable AFM [aircraft flight manual] of that aeroplane by
inserting the AFM change provided in Appendix 1 of this [EASA] AD,''
however this AD requires amending ``the existing AFM and applicable
corresponding operational procedures to incorporate the limitations
and procedures specified in Appendix 1 of EASA AD 2021-0024.''
(6) Where paragraphs (5) and (6) of EASA AD 2021-0024 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.
(7) Where paragraph (1) of EASA AD 2021-0024 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.
(i) Other FAA AD Provisions
The following provisions also apply to this AD:
[[Page 48493]]
(1) Alternative Methods of Compliance (AMOCs): The Manager,
Large Aircraft Section, 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 Large Aircraft Section, 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#f2cbdfb3a4a1dfb3bba0dfc5c1c2dfb3bfbdb1b2949393dc959d84"><span class="__cf_email__" data-cfemail="d4edf9958287f9959d86f9e3e7e4f995999b9794b2b5b5fab3bba2">[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, Large Aircraft
Section, 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) Related Information
For more information about this AD, contact Shahram Daneshmandi,
Aerospace Engineer, Large Aircraft Section, International Validation
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; phone and
fax: 206-231-3220; email: <a href="/cdn-cgi/l/email-protection#53203b323b21323e7d37323d36203b3e323d373a133532327d343c25"><span class="__cf_email__" data-cfemail="89fae1e8e1fbe8e4a7ede8e7ecfae1e4e8e7ede0c9efe8e8a7eee6ff">[email protected]</span></a>.
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) 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 2021-0024,
dated January 19, 2021.
(ii) [Reserved]
(3) For EASA AD 2021-0024, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#6e2f2a1d2e0b0f1d0f400b1b1c011e0f400b1b"><span class="__cf_email__" data-cfemail="5312172013363220327d3626213c23327d3626">[email protected]</span></a>; internet www.easa.europa.eu. You may find this
EASA AD on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>.
(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. This material may be found in the AD
docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching
for and locating Docket No. FAA-2021-0366.
(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#a4c2d68acdcad7d4c1c7d0cdcbcae4cac5d6c58ac3cbd2"><span class="__cf_email__" data-cfemail="8debffa3e4e3fefde8eef9e4e2e3cde3ecffeca3eae2fb">[email protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued on August 3, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-18704 Filed 8-30-21; 8:45 am]
BILLING CODE 4910-13-P
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