Rule2022-25512
Airworthiness Directives; Airbus SAS 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
November 25, 2022
Effective
December 30, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Airbus SAS Model A350-1041 airplanes. This AD was prompted by a report of rejected take-offs after transient engine N1 shaft speed exceedance. This AD requires replacing certain hydro-mechanical units (HMUs) with serviceable HMUs before reaching a reduced life limit, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD also limits the installation of affected parts under certain conditions. The FAA is issuing this AD to address the unsafe condition on these products.
Full Text
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<title>Federal Register, Volume 87 Issue 226 (Friday, November 25, 2022)</title>
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[Federal Register Volume 87, Number 226 (Friday, November 25, 2022)]
[Rules and Regulations]
[Pages 72377-72379]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-25512]
[[Page 72377]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1064; Project Identifier MCAI-2022-00342-T;
Amendment 39-22224; AD 2022-22-09]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS 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 Airbus SAS Model A350-1041 airplanes. This AD was prompted by a
report of rejected take-offs after transient engine N1 shaft speed
exceedance. This AD requires replacing certain hydro-mechanical units
(HMUs) with serviceable HMUs before reaching a reduced life limit, as
specified in a European Union Aviation Safety Agency (EASA) AD, which
is incorporated by reference. This AD also limits the installation of
affected parts under certain conditions. The FAA is issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective December 30, 2022.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of December 30,
2022.
ADDRESSES:
AD Docket: You may examine the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1064; 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 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#7a3b3e093a1f1b091b541f0f08150a1b541f0f"><span class="__cf_email__" data-cfemail="27666354674246544609425255485746094252">[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 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 at
<a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-1064.
FOR FURTHER INFORMATION CONTACT: Dat Le, Aerospace Engineer, Large
Aircraft Section, FAA, International Validation Branch, 2200 South
216th St., Des Moines, WA 98198; telephone 516-228-7317; email
<a href="/cdn-cgi/l/email-protection#701411045e065e1c15301611115e171f06"><span class="__cf_email__" data-cfemail="9efaffeab0e8b0f2fbdef8ffffb0f9f1e8">[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 Airbus SAS
Model A350-1041 airplanes. The NPRM published in the Federal Register
on August 29, 2022 (87 FR 52705). The NPRM was prompted by AD 2022-
0040, dated March 8, 2022, issued by EASA, which is the Technical Agent
for the Member States of the European Union (EASA AD 2022-0040)
(referred to after this as the MCAI). The MCAI states that rejected
take-offs after transient engine N1 shaft speed exceedance have been
reported. The MCAI adds that the combining spill valve (CSV) of the
engine HMU was slow to close due to piston wear. A worn CSV piston does
not move fully and freely over its operating range, and when it moves
to the fully closed position, an excess of fuel is sent to the fuel
nozzles, which eventually results in an N1 transient shaft overspeed. A
stuck CSV piston could significantly reduce engine thrust, and if
combined with a loss of the second engine, could possibly result in
reduced control of the airplane.
In the NPRM, the FAA proposed to require replacing certain HMUs
with serviceable HMUs before reaching a reduced life limit, as
specified in EASA AD 2022-0040. The NPRM also proposed to limit the
installation of affected parts under certain conditions. 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-2022-1064.
Discussion of Final Airworthiness Directive
Comments
The FAA received comments from the Air Line Pilots Association,
International (ALPA) who supported the NPRM 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 NPRM. None of the changes will
increase the economic burden on any operator.
Related Service Information Under 1 CFR Part 51
EASA AD 2022-0040 specifies procedures for replacing each HMU
having part number G5020HMU02 with a serviceable HMU before reaching a
reduced life limit. EASA AD 2022-0040 also limits the installation of
affected parts under certain conditions. 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.
Interim Action
The FAA considers that this AD is an interim action. If final
action is later identified, the FAA might consider further rulemaking
then.
Costs of Compliance
The FAA estimates that this AD affects 29 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 per Cost on U.S.
Labor cost Parts cost product operators
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7 work-hours x $85 per hour = $595........................... $0 * $595 $17,255
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* The FAA has received no definitive data on which to base the cost estimates for the parts specified in this
AD.
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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:
2022-22-09 Airbus SAS: Amendment 39-22224; Docket No. FAA-2022-1064;
Project Identifier MCAI-2022-00342-T.
(a) Effective Date
This airworthiness directive (AD) is effective December 30,
2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to Airbus SAS Model A350-1041 airplanes,
certificated in any category, as identified in European Union
Aviation Safety Agency (EASA) AD 2022-0040, dated March 8, 2022
(EASA AD 2022-0040).
(d) Subject
Air Transport Association (ATA) of America Code 73, Engine Fuel
and Control.
(e) Unsafe Condition
This AD was prompted by a report of rejected take-offs after
transient engine N1 shaft speed exceedance. The FAA is issuing this
AD to address a stuck combined spill valve (CSV) piston of the
engine hydro-mechanical units (HMUs), which could significantly
reduce engine thrust, and if combined with a loss of the second
engine, could possibly result in reduced control 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 2022-0040.
(h) Exceptions to EASA AD 2022-0040
(1) Where EASA AD 2022-0040 refers to its effective date, this
AD requires using the effective date of this AD.
(2) The ``Remarks'' section of EASA AD 2022-0040 does not apply
to this AD.
(3) Where paragraph (1) of EASA AD 2022-0040 specifies to
replace ``[b]efore an affected part exceeds the life limit as
defined in Table 1 of this [EASA] AD,'' this AD requires replacing
``before an affected part exceeds the life limit specified in Table
1 of EASA 2022-0040, or within 3 flight cycles after the effective
date of this AD, whichever occurs later.''
(4) Where Table 1 of EASA AD 2022-0040 specifies calendar
timeframes, for this AD replace the text ``31 March 2022 to 29, June
2023'' with ``the effective date of this AD through June 29, 2023.''
(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#3f06127e696c127e766d12080c0f127e72707c7f595e5e11585049"><span class="__cf_email__" data-cfemail="30091d7166631d7179621d0703001d717d7f73705651511e575f46">[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 Airbus
SAS's 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 referenced
in EASA AD 2022-0042 contains paragraphs that are labeled as RC, the
instructions in RC paragraphs, including subparagraphs under an RC
paragraph, must be done to comply with this AD; any paragraphs,
including subparagraphs under those paragraphs, that are not
identified as RC are recommended. The instructions in paragraphs,
including subparagraphs under those paragraphs, 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 instructions identified as RC can
be done and the airplane can be put back in an airworthy condition.
Any substitutions or changes to instructions identified as RC
require approval of an AMOC.
(j) Additional Information
For more information about this AD, contact Dat Le, Aerospace
Engineer, Large Aircraft Section, FAA, International Validation
Branch, 2200 South 216th St., Des Moines, WA 98198; telephone 516-
228-7317; email <a href="/cdn-cgi/l/email-protection#f2969386dc84dc9e97b2949393dc959d84"><span class="__cf_email__" data-cfemail="e1858095cf97cf8d84a1878080cf868e97">[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 2022-0040,
dated March 8, 2022.
(ii) [Reserved]
(3) For EASA AD 2022-0040, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#f4b5b087b491958795da9181869b8495da9181"><span class="__cf_email__" data-cfemail="ce8f8abd8eabafbdafe0abbbbca1beafe0abbb">[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
[[Page 72379]]
Archives and Records Administration (NARA). For information on the
availability of this material at NARA, email <a href="/cdn-cgi/l/email-protection#761004581f1805061315021f1918361817041758111900"><span class="__cf_email__" data-cfemail="91f7e3bff8ffe2e1f4f2e5f8feffd1fff0e3f0bff6fee7">[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 October 21, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-25512 Filed 11-23-22; 8:45 am]
BILLING CODE 4910-13-P
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</html>Indexed from Federal Register on November 25, 2022.
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