Rule2021-16564
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
August 5, 2021
Effective
September 9, 2021
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A330-200, -300, -800, and -900 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This AD was prompted by reports that certain oxygen supply solenoid valves are a potential source of increased flow resistance within the flightcrew oxygen system. This AD requires a special detailed inspection (flow test) of certain solenoid valves, and replacement if necessary, 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 86 Issue 148 (Thursday, August 5, 2021)</title>
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[Federal Register Volume 86, Number 148 (Thursday, August 5, 2021)]
[Rules and Regulations]
[Pages 42687-42689]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-16564]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2021-0131; Project Identifier MCAI-2020-01628-T;
Amendment 39-21658; AD 2021-15-11]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all
Airbus SAS Model A330-200, -300, -800, and -900 series airplanes; and
Model A340-200, -300, -500, and -600 series airplanes. This AD was
prompted by reports that certain oxygen supply solenoid valves are a
potential source of increased flow resistance within the flightcrew
oxygen system. This AD requires a special detailed inspection (flow
test) of certain solenoid valves, and replacement if necessary, 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 September 9, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September 9,
2021.
ADDRESSES: For material incorporated by reference (IBR) 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#36777245765357455718534344594657185343"><span class="__cf_email__" data-cfemail="4c0d083f0c292d3f2d6229393e233c2d622939">[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-2021-0131.
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-
0131; 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: Vladimir Ulyanov, Aerospace Engineer,
Large Aircraft Section, International Validation Branch, FAA, 2200
South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3229;
email <a href="/cdn-cgi/l/email-protection#60160c0104090d09124e150c19010e0f16200601014e070f16"><span class="__cf_email__" data-cfemail="9ceaf0fdf8f5f1f5eeb2e9f0e5fdf2f3eadcfafdfdb2fbf3ea">[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 2020-0273, dated December 9, 2020
(EASA AD 2020-0273) (also referred to as the Mandatory Continuing
Airworthiness Information, or the MCAI), to correct an unsafe condition
for all Airbus SAS Model A330-201, A330-202, A330-203, A330-223, A330-
243, A330-301, A330-302, A330-303, A330-321, A330-322, A330-323, A330-
341, A330-342, A330-343, A330-743L, A330-841, A330-941, A340-211, A340-
212, A340-213, A340-311, A340-312, A340-313, A340-541, A340-542, A340-
642, and A340-643 airplanes. Model A330-743L, A340-542, and A340-643
airplanes are not certificated by the FAA and are not included on the
U.S. type certificate data sheet; this AD therefore does not include
those airplanes in the applicability.
The FAA issued a notice of proposed rulemaking (NPRM) to amend 14
CFR part 39 by adding an AD that would apply to all Airbus SAS Model
A330-200, -300, -800, and -900 series airplanes; and Model A340-200, -
300, -500, and -600 series airplanes. The NPRM published in the Federal
Register on March 8, 2021 (86 FR 13239). The NPRM was prompted by
reports that certain oxygen supply solenoid valves are a potential
source of increased flow resistance within the flightcrew oxygen
system. The NPRM proposed to require a special detailed inspection
(flow test) of certain solenoid valves, and replacement if necessary,
as specified in EASA AD 2020-0273.
The FAA is issuing this AD to address increased flow resistance
within the flightcrew oxygen system, which could lead to a reduced flow
of oxygen supply to the flightcrew oxygen masks, and in combination
with in-flight depressurization, smoke in the flight deck, or a smoke
evacuation procedure, could lead to flightcrew hypoxia and loss of
useful consciousness, resulting in loss of control of the airplane. See
the MCAI for additional background information.
Comments
The FAA gave the public the opportunity to participate in
developing this final rule. The following presents the comments
received on the NPRM and the FAA's response to each comment.
Request To Allow Additional Source of Service Information
Delta Air Lines (DAL) asked that the FAA add a paragraph (h)(3) to
the proposed AD which would allow operators to use the serial numbers
identified in Safran Service Information Letter (SIL) SIL120, dated May
20, 2019, instead of the year of manufacture, to determine whether a
solenoid valve is an affected part, as defined in EASA AD 2020-0273.
DAL stated that the SIL contains the serial numbers and year of
manufacture of affected solenoid valves.
The FAA agrees to clarify. EASA AD 2020-0273 does not specify how
to determine whether a solenoid valve is an affected part. The FAA
agrees that operators can use Safran SIL120 as an additional source of
guidance for identification of the affected parts by the serial
numbers. The FAA has added Note 1 to paragraph (g) of this AD stating
that additional guidance for identification of affected parts can be
found in Safran Service Information Letter SIL120, dated May 20, 2019.
Request Not To Return Affected Valves to Manufacturer
DAL asked that the requirement to send any affected solenoid valves
back to Zodiac for repair, in which is specified as ``Required for
Compliance'' (RC) in the applicable service information identified in
EASA AD 2020-0273 be excluded in the proposed AD. DAL stated that all
affected parts must pass a flow test with no defects found prior to the
next flight of the airplane after installation on the airplane.
The FAA agrees with the commenter for the reasons provided. The FAA
has revised paragraph (i) of this AD to exclude the requirement to send
any affected solenoid valve back to Zodiac for repair.
Conclusion
The FAA reviewed the relevant data, considered the comments
received, and determined that air safety and the public interest
require adopting this
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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 2020-0273 describes procedures for doing a special detailed
inspection (flow test) of certain solenoid valves by using the
flightcrew oxygen masks and replacing any solenoid valve that fails the
flow test with a serviceable part. 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 112 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
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Cost per Cost on U.S.
Labor cost Parts cost product operators
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3 work-hours x $85 per hour = $255........................... $0 $255 $28,560
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The FAA estimates the following costs to do any necessary
replacement that would be required based on the results of any actions.
The FAA has no way of determining the number of aircraft that might
need replacement:
Estimated Costs of On-Condition Action
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Labor cost Parts cost Cost per product
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1 work-hour x $85 per hour = $85. Up to $5,496 Up to $5,581.
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According to the manufacturer, some or all of the costs of this AD
may be covered under warranty, thereby reducing the cost impact on
affected operators. The FAA does not control warranty coverage for
affected operators. As a result, the FAA has included all known costs
in the cost estimate.
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 adding the following new airworthiness
directive:
2021-15-11 Airbus SAS: Amendment 39-21658; Docket No. FAA-2021-0131;
Project Identifier MCAI-2020-01628-T.
(a) Effective Date
This airworthiness directive (AD) is effective September 9,
2021.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS airplanes, certificated in any
category, identified in paragraphs (c)(1) through (8) of this AD.
(1) Model A330-201, -202, -203, -223, and -243 airplanes.
(2) Model A330-301, -302, -303, -321, -322, -323, -341, -342,
and -343 airplanes.
(3) Model A330-841 airplanes.
(4) Model A330-941 airplanes.
(5) Model A340-211, -212, and -213 airplanes.
(6) Model A340-311, -312, and -313 airplanes.
(7) Model A340-541 airplanes.
(8) Model A340-642 airplanes.
(d) Subject
Air Transport Association (ATA) of America Code 35, Oxygen.
(e) Reason
This AD was prompted by reports that certain oxygen supply
solenoid valves are a potential source of increased flow resistance
within the flightcrew oxygen system. The FAA is issuing this AD to
address increased flow resistance within the flightcrew oxygen
system, which could lead to a reduced flow of oxygen supply to the
flightcrew oxygen masks, and in combination with in-flight
depressurization, smoke in the flight deck, or a smoke evacuation
procedure, could lead to
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flightcrew hypoxia and loss of useful consciousness, resulting in
loss of 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, European Union Aviation Safety Agency (EASA) AD
2020-0273, dated December 9, 2020 (EASA AD 2020-0273).
Note 1 to paragraph (g): Guidance for identifying affected
oxygen supply solenoid valves as defined in EASA AD 2020-0273, can
be found in Safran Service Information Letter SIL120, dated May 20,
2019.
(h) Exceptions to EASA AD 2020-0273
(1) Where EASA AD 2020-0273 refers to its effective date, this
AD requires using the effective date of this AD.
(2) The ``Remarks'' section of EASA AD 2020-0273 does not apply
to this AD.
(i) No Reporting or Parts Return Required
Although the service information referenced in EASA AD 2020-0273
specifies to submit certain information and return any affected
solenoid valve to the manufacturer for repair, this AD does not
require those actions.
(j) Other FAA AD Provisions
The following provisions also apply to this AD:
(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 local Flight
Standards District 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 (k) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#f3cadeb2a5a0deb2baa1dec4c0c3deb2bebcb0b3959292dd949c85"><span class="__cf_email__" data-cfemail="3e07137f686d137f776c13090d0e137f73717d7e585f5f10595148">[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): For any service information
referenced in EASA AD 2020-0273 that contains RC procedures and
tests: Except as required by paragraph (j)(2) of this AD, RC
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.
(k) Related Information
For more information about this AD, contact Vladimir Ulyanov,
Aerospace Engineer, Large Aircraft Section, International Validation
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone
and fax 206-231-3229; email <a href="/cdn-cgi/l/email-protection#17617b76737e7a7e6539627b6e767978615771767639707861"><span class="__cf_email__" data-cfemail="cabca6abaea3a7a3b8e4bfa6b3aba4a5bc8aacababe4ada5bc">[email protected]</span></a>.
(l) 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 2020-0273,
dated December 9, 2020.
(ii) [Reserved]
(3) For EASA AD 2020-0273, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#4b0a0f380b2e2a382a652e3e39243b2a652e3e"><span class="__cf_email__" data-cfemail="27666354674246544609425255485746094252">[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-2021-0131.
(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#dbbdbebfa9bebcf5b7bebcbab79bb5baa9baf5bcb4ad"><span class="__cf_email__" data-cfemail="086e6d6c7a6d6f26646d6f69644866697a69266f677e">[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 July 15, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification
Service.
[FR Doc. 2021-16564 Filed 8-4-21; 8:45 am]
BILLING CODE 4910-13-P
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