[Federal Register Volume 89, Number 186 (Wednesday, September 25, 2024)]
[Proposed Rules]
[Pages 78262-78265]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2024-21811]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2024-2314; Project Identifier MCAI-2024-00312-T]
RIN 2120-AA64


Airworthiness Directives; Airbus SAS Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for all Airbus SAS Model A319-111, -112, -113, -114, -115, -131, -132, 
-133, -151N, and -153N airplanes; A320 series airplanes; and A321-211, 
-212, -213, -231, -232, -251N, -252N, -253N, -271N, -272N, -251NX, -
252NX, -253NX, -271NX, and -272NX airplanes. This proposed AD was 
prompted by a determination that a

[[Page 78263]]

damage-tolerance and fatigue reassessment of nose landing gear (NLG) 
repairs is necessary for certain parts fitted on airplanes approved for 
operation in the Commonwealth of Independent States (CIS). This 
proposed AD would require repair and replacement of all affected parts, 
and introduces restrictions for the 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 November 
12, 2024.

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 regulations.gov. 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 regulations.gov under 
Docket No. FAA-2024-2314; 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 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#7d3c390e3d181c0e1c5318080f120d1c531808"><span class="__cf_email__" data-cfemail="9adbdee9dafffbe9fbb4ffefe8f5eafbb4ffef">[email protected]</span></a>; website easa.europa.eu. You may find 
this material on the EASA website at ad.easa.europa.eu. It is also 
available at regulations.gov under Docket No. FAA-2024-2314.
    <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.

FOR FURTHER INFORMATION CONTACT: Timothy Dowling, Aviation Safety 
Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
phone 206-231-3667; email <a href="/cdn-cgi/l/email-protection#f1a5989c9e859988dfa1dfb59e869d989f96b1979090df969e87"><span class="__cf_email__" data-cfemail="7f2b1612100b1706512f513b1008131611183f191e1e51181009">[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-2024-2314; Project Identifier 
MCAI-2024-00312-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 
regulations.gov, 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 
Timothy Dowling, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, 
Suite 410, Westbury, NY 11590; phone 206-231-3667; email 
<a href="/cdn-cgi/l/email-protection#76221f1b19021e0f5826583219011a1f18113610171758111900"><span class="__cf_email__" data-cfemail="3064595d5f4458491e601e745f475c595e57705651511e575f46">[email protected]</span></a>. Any commentary that the FAA receives that 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 2024-0022, dated January 23, 2024 
(EASA AD 2024-0022) (also referred to as the MCAI), to correct an 
unsafe condition for all Airbus SAS Model A319-111, A319-112, A319-113, 
A319-114, A319-115, A319-131, A319-132, A319-133, A319-151N, A319-153N, 
A320-211, A320-212, A320-214, A320-215, A320-216, A320-231, A320-232, 
A320-233, A320-251N, A320-252N, A320-253N, A320-271N, A320-272N, A320-
273N, A321-211, A321-212, A321-213, A321-231, A321-232, A321-251N, 
A321-251NX, A321-252N, A321-252NX, A321-253N, A321-253NX, A321-271N, 
A321-271NX, A321-272N, and A321-272NX airplanes. Model A320-215 
airplanes are not certificated by the FAA and are not included on the 
U.S. type certificate data sheet; this proposed AD therefore does not 
include those airplanes in the applicability.
    The MCAI states that a design review led to a determination that a 
damage-tolerance and fatigue reassessment of NLG repairs is required 
for certain parts fitted on airplanes approved for CIS operation. The 
EASA AD addresses the reassessment of these repairs. The unsafe 
condition, if not addressed, could lead to damage or failure of the 
affected parts and the NLG, and possible damage to the airplane and 
injury to occupants, following modifications for CIS operations.
    Different runway standards in CIS countries have resulted in the 
need for specific landing gear modifications or repairs on those 
modified landing gears. The landing gear components modified for CIS 
runway conditions may be inadequate for continued operation. While it 
is possible there are few or no U.S. airplanes subject to the repair 
and replacement requirements of this AD, the FAA has determined that 
this AD is necessary to identify airplanes with affected parts and 
confirm the need for any follow-on actions.
    The FAA is proposing this AD to address the unsafe condition on 
these products.
    You may examine the MCAI in the AD docket at regulations.gov under 
Docket No. FAA-2024-2314.

Material Incorporated by Reference Under 1 CFR Part 51

    EASA AD 2024-0022 specifies procedures for repair and replacement, 
as applicable, of the affected parts. EASA AD 2024-0022 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 ADDRESSES.

[[Page 78264]]

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 this State of Design Authority, it 
has notified the FAA of the unsafe condition described in the MCAI 
referenced 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 2024-0022 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 2024-0022 by reference in the FAA 
final rule. This proposed AD would, therefore, require compliance with 
EASA AD 2024-0022 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 2024-0022 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 2024-
0022. Service information required by EASA AD 2024-0022 for compliance 
will be available at regulations.gov under Docket No. FAA-2024-2314 
after the FAA final rule is published.

Costs of Compliance

    The FAA estimates that this AD, if adopted as proposed, would 
affect 1,680 airplanes of U.S. registry. The FAA estimates the 
following costs to comply with this proposed AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                  Cost per
                   Labor cost                      Parts cost      product          Cost on U.S. operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $85 per hour = $85................           $0           $85   Up to $142,800.
----------------------------------------------------------------------------------------------------------------

    The FAA has received no definitive data on which to base the cost 
estimates for the repairs or replacements specified in this proposed 
AD. The cost of parts could be as high as $5,620 per airplane.

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, 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: Docket No. FAA-2024-2314; Project Identifier MCAI-2024-
00312-T.

(a) Comments Due Date

    The FAA must receive comments on this airworthiness directive 
(AD) by November 12, 2024.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Airbus SAS airplanes identified in 
paragraphs (c)(1) through (3) of this AD, certificated in any 
category.
    (1) Model A319-111, -112, -113, -114, -115, -131, -132, -133, -
151N, and -153N airplanes.
    (2) Model A320-211, -212, -214, -216, -231, -232, -233, -251N, -
252N, -253N, -271N, -272N, and -273N airplanes.
    (3) Model A321-211, -212, -213, -231, -232, -251N, -251NX, -
252N, -252NX, -253N, -253NX, -271N, -271NX, -272N, and -272NX 
airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 32, Landing 
gear.

(e) Unsafe Condition

    This AD was prompted by a determination that a damage-tolerance 
and fatigue reassessment of nose landing gear (NLG) repairs is 
necessary for certain parts fitted on airplanes approved for 
operation in the

[[Page 78265]]

Commonwealth of Independent States (CIS). The FAA is issuing this AD 
to address the reassessment of these repairs. The unsafe condition, 
if not addressed, could lead to damage or failure of the affected 
parts and the NLG, and possible damage to the airplane and injury to 
occupants.

(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 2024-0022, dated January 23, 2024 (EASA AD 
2024-0022).

(h) Exceptions to EASA AD 2024-0022

    (1) Where EASA AD 2024-0022 refers to its effective date, this 
AD requires using the effective date of this AD.
    (2) This AD does not adopt the ``Remarks'' section of EASA AD 
2024-0022.

(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. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#1c25315d4a4f315d554e312b2f2c315d51535f5c7a7d7d327b736a"><span class="__cf_email__" data-cfemail="073e2a4651542a464e552a3034372a464a48444761666629606871">[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 (i)(2) of this AD, if any material 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.

(j) Additional Information

    For more information about this AD, contact Timothy Dowling, 
Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; phone 206-231-3667; email 
<a href="/cdn-cgi/l/email-protection#184c7175776c70613648365c776f7471767f587e7979367f776e"><span class="__cf_email__" data-cfemail="cb9fa2a6a4bfa3b2e59be58fa4bca7a2a5ac8badaaaae5aca4bd">[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 2024-0022, 
dated January 23, 2024.
    (ii) [Reserved]
    (3) For EASA AD 2024-0022 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#adece9deedc8ccdecc83c8d8dfc2ddcc83c8d8"><span class="__cf_email__" data-cfemail="3b7a7f487b5e5a485a155e4e49544b5a155e4e">[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 at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at NARA, visit www.archives.gov/federal-register/cfr/ibr-locations, or email <a href="/cdn-cgi/l/email-protection#197f6b3770776a697c7a6d7076775977786b78377e766f"><span class="__cf_email__" data-cfemail="c2a4b0ecabacb1b2a7a1b6abadac82aca3b0a3eca5adb4">[email protected]</span></a>.

    Issued on September 19, 2024.
Peter A. White,
Deputy Director, Integrated Certificate Management Division, Aircraft 
Certification Service.
[FR Doc. 2024-21811 Filed 9-24-24; 8:45 am]
BILLING CODE 4910-13-P


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