Proposed Rule2022-23808
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 4, 2022
Issuing agencies
Transportation DepartmentFederal Aviation Administration
Abstract
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by reports of potential foreign object debris (FOD) contamination of the thermal relief valve (TRV). This proposed AD would require replacement of affected auxiliary power unit (APU) low pressure (LP) shut-off valves (SOVs), an inspection to detect fuel leaks of affected engine LP SOVs and APU isolation shut-off valves (ISOVs), and applicable corrective actions, and would prohibit installation of affected parts, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.
Full Text
<html>
<head>
<title>Federal Register, Volume 87 Issue 213 (Friday, November 4, 2022)</title>
</head>
<body><pre>
[Federal Register Volume 87, Number 213 (Friday, November 4, 2022)]
[Proposed Rules]
[Pages 66623-66625]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2022-23808]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2022-1407; Project Identifier MCAI-2022-01043-T]
RIN 2120-AA64
Airworthiness Directives; Airbus SAS Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD)
for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD
was prompted by reports of potential foreign object debris (FOD)
contamination of the thermal relief valve (TRV). This proposed AD would
require replacement of affected auxiliary power unit (APU) low pressure
(LP) shut-off valves (SOVs), an inspection to detect fuel leaks of
affected engine LP SOVs and APU isolation shut-off valves (ISOVs), and
applicable corrective actions, and would prohibit installation of
affected parts, as specified in a European Union Aviation Safety Agency
(EASA) AD, which is proposed for incorporation by reference (IBR). The
FAA is proposing this AD to address the unsafe condition on these
products.
DATES: The FAA must receive comments on this proposed AD by December
19, 2022.
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.
<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-2022-1407; 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 NPRM, 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 that will be 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#dd9c99ae9db8bcaebcf3b8a8afb2adbcf3b8a8"><span class="__cf_email__" data-cfemail="b7f6f3c4f7d2d6c4d699d2c2c5d8c7d699d2c2">[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.
FOR FURTHER INFORMATION CONTACT: Hassan Ibrahim, Aerospace Engineer,
Large Aircraft Section, FAA, International Validation Branch, 2200
South 216th St., Des Moines, WA 98198; telephone 206-231-3653; email
<a href="/cdn-cgi/l/email-protection#f5bd948686949bdbb8dbbc9787949d9c98b5939494db929a83"><span class="__cf_email__" data-cfemail="5d153c2e2e3c33731073143f2f3c3534301d3b3c3c733a322b">[email protected]</span></a>.
SUPPLEMENTARY INFORMATION:
Comments Invited
The FAA invites you to send any written relevant data, views, or
arguments about this proposal. Send your comments to an address listed
under ADDRESSES. Include ``Docket No. FAA-2022-1407; Project Identifier
MCAI-2022-01043-T'' at the beginning of your comments. The most helpful
comments reference a specific portion of the proposal, 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 proposal 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 NPRM.
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 NPRM 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 NPRM, 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 NPRM. Submissions containing CBI should be sent to
Hassan Ibrahim, Aerospace Engineer, Large Aircraft Section, FAA,
International Validation Branch, 2200 South 216th St., Des Moines, WA
98198; telephone 206-231-3653; email <a href="/cdn-cgi/l/email-protection#95ddf4e6e6f4fbbbd8bbdcf7e7f4fdfcf8d5f3f4f4bbf2fae3"><span class="__cf_email__" data-cfemail="6028011313010e4e2d4e2902120108090d200601014e070f16">[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 2022-0157, dated August 4, 2022
(EASA AD 2022-0157) (also referred to as the MCAI), to correct an
unsafe condition for all Airbus SAS Model A350-941 and -1041 airplanes.
The MCAI states that reports have been received from the manufacturer
of the APU, the engine LP SOV, and the APU ISOV of potential FOD
contamination of the TRV, which was generated by a quality escape
during the manufacturing assembly process. Results of the technical
investigation determined that FOD in the TRV may lead to a fuel leakage
through the valve. This condition, if not detected and corrected,
could, in case of an APU or engine fire, contribute to an uncontrolled
fire, possibly resulting in loss of control of the airplane.
The MCAI requires replacement of affected APU LP SOVs, a special
detailed inspection (SDI) of affected engine LP SOVs and APU ISOVs to
detect fuel leaks through the valve and, depending on findings,
replacement with a serviceable engine LP SOV or APU ISOV.
You may examine the MCAI in the AD docket at <a href="http://regulations.gov">regulations.gov</a> under
Docket No. FAA-2022-1407.
[[Page 66624]]
Related Service Information Under 1 CFR Part 51
EASA AD 2022-0157 specifies procedures for replacement of affected
APU LP SOVs with serviceable parts, a special detailed inspection of
affected engine LP SOVs and APU ISOVs for discrepancies (leaks), and
replacement of discrepant engine LP SOVs and APU ISOVs with serviceable
parts. EASA AD 2022-0157 also prohibits installation of an affected APU
LP SOV, engine LP SOV, or APU ISOV. 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 the State of Design Authority, it
has notified the FAA of the unsafe condition described in the MCAI
described above. The FAA is issuing this NPRM after determining that
the unsafe condition described previously is likely to exist or develop
in other products of the same type design.
Proposed AD Requirements in This NPRM
This proposed AD would require accomplishing the actions specified
in EASA AD 2022-0157 described previously, except for any differences
identified as exceptions in the regulatory text of this proposed 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, the
FAA proposes to incorporate EASA AD 2022-0157 by reference in the FAA
final rule. This proposed AD would, therefore, require compliance with
EASA AD 2022-0157 in its entirety through that incorporation, except
for any differences identified as exceptions in the regulatory text of
this proposed AD. Using common terms that are the same, as the heading
of a particular section in EASA AD 2022-0157 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,''
compliance with this AD requirement is not limited to the section
titled ``Required Action(s) and Compliance Time(s)'' in EASA AD 2022-
0157. Service information required by EASA AD 2022-0157 for compliance
will be available at <a href="http://regulations.gov">regulations.gov</a> under Docket No. FAA-2022-1407
after the FAA final rule is published.
Costs of Compliance
The FAA estimates that this AD, if adopted as proposed, would
affect 69 airplanes of U.S. registry. The FAA estimates the following
costs to comply with this proposed AD:
Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
Cost per Cost on U.S.
Labor cost Parts cost product operators
----------------------------------------------------------------------------------------------------------------
Up to 15 work-hours x $85 per hour = $585.................... $0 $585 $40,365
----------------------------------------------------------------------------------------------------------------
The FAA estimates the following costs to do any necessary on-
condition actions that would be required based on the results of any
required actions. The FAA has no way of determining the number of
aircraft that might need these on-condition actions:
Estimated Costs of On-Condition Actions
----------------------------------------------------------------------------------------------------------------
Cost per
Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Up to 7 work-hours x $85 per hour = $595....... Up to $18,000.................................. $18,595
----------------------------------------------------------------------------------------------------------------
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
The FAA determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Would not affect intrastate aviation in Alaska, and
(3) Would 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 Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator,
[[Page 66625]]
the FAA proposes to amend 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:
Airbus SAS Airplanes: Docket No. FAA-2022-1407; Project Identifier
MCAI-2022-01043-T.
(a) Comments Due Date
The FAA must receive comments on this airworthiness directive
(AD) by December 19, 2022.
(b) Affected ADs
None.
(c) Applicability
This AD applies to all Airbus SAS Model A350-941 and -1041
airplanes, certificated in any category.
(d) Subject
Air Transport Association (ATA) of America Code 28, Fuel System.
(e) Unsafe Condition
This AD was prompted by reports of potential foreign object
debris (FOD) contamination of the thermal relief valve (TRV). The
FAA is issuing this AD to address potential FOD contamination, which
could lead to a fuel leak. The unsafe condition, if not addressed,
could result in an auxiliary power unit (APU) or engine fire and
contribute to an uncontrolled fire, possibly 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 paragraphs (h) and (i) of this AD: Comply
with all required actions and compliance times specified in, and in
accordance with, European Union Aviation Safety Agency (EASA) AD
2022-0157, dated August 4, 2022 (EASA AD 2022-0157).
(h) Exceptions to EASA AD 2022-0157
(1) Where EASA AD 2022-0157 refers to its effective date, this
AD requires using the effective date of this AD.
(2) Where paragraph (3) of EASA AD 2022-0157 specifies ``any
discrepancy'' this AD defines discrepancy as leaks of the APU, the
engine low pressure (LP) shut-off valve (SOV), and the APU isolation
shut-off valve (ISOV).
(3) The ``Remarks'' section of EASA AD 2022-0157 does not apply
to this AD.
(4) Where the service information referenced in EASA AD 2022-
0157 specifies to scrap certain parts, send those parts to the
manufacturer, or check spares, this AD does not include that
requirement.
(i) No Reporting Requirement
Although the service information referenced in EASA AD 2022-0157
specifies to submit certain information to the manufacturer, this AD
does not include that requirement.
(j) 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 (k) of this AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#063f2b4750552b474f542b3135362b474b49454660676728616970"><span class="__cf_email__" data-cfemail="182135594e4b3559514a352f2b28355955575b587e7979367f776e">[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 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 (j)(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.
(k) Additional Information
For more information about this AD, contact Hassan Ibrahim,
Aerospace Engineer, Large Aircraft Section, FAA, International
Validation Branch, 2200 South 216th St., Des Moines, WA 98198;
telephone 206-231-3653; email <a href="/cdn-cgi/l/email-protection#e5ad849696848bcba8cbac8797848d8c88a5838484cb828a93"><span class="__cf_email__" data-cfemail="e4ac859797858acaa9caad8696858c8d89a4828585ca838b92">[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 2022-0157,
dated August 4, 2022.
(ii) [Reserved]
(3) For EASA AD 2022-0157, contact EASA, Konrad-Adenauer-Ufer 3,
50668 Cologne, Germany; telephone +49 221 8999 000; email
<a href="/cdn-cgi/l/email-protection#2465605764414557450a4151564b54450a4151"><span class="__cf_email__" data-cfemail="f5b4b186b590948694db9080879a8594db9080">[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 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.
(5) You may view this service information 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#076175296e6974776264736e6869476966756629606871"><span class="__cf_email__" data-cfemail="2f495d0146415c5f4a4c5b4640416f414e5d4e01484059">[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 27, 2022.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft
Certification Service.
[FR Doc. 2022-23808 Filed 11-3-22; 8:45 am]
BILLING CODE 4910-13-P
</pre><script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script></body>
</html>Indexed from Federal Register on November 4, 2022.
This is legal information, not legal advice. Laws vary by jurisdiction and change frequently. Always verify current law with official sources and consult a licensed attorney in your jurisdiction for advice on your specific situation.