AD 2021-03-05

[Federal Register Volume 86, Number 23 (Friday, February 5, 2021)]
[Rules and Regulations]
[Pages 8305-8308]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-02477]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0015; Project Identifier MCAI-2021-00014-T; 
Amendment 39-21408; AD 2021-03-05]
RIN 2120-AA64


Airworthiness Directives; Airbus SAS Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Airbus SAS Model A318, A319, A320, and A321 series airplanes. This AD 
was prompted by a report that following accomplishment of tap tests on 
certain modified rudders, disbonding of the rudder was found close to 
the lightning protection plate. This AD requires inspections of the 
left- and right-hand rudder side shells for defects, and applicable 
corrective actions, 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 becomes effective February 22, 2021.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of February 22, 
2021.
    The FAA must receive comments on this AD by March 22, 2021.

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="https://www.regulations.gov">https://www.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.
    For material incorporated by reference (IBR) in this AD, contact 
the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 
221 8999 000; email <a href="/cdn-cgi/l/email-protection#bbfaffc8fbdedac8da95decec9d4cbda95dece"><span class="__cf_email__" data-cfemail="9fdedbecdffafeecfeb1faeaedf0effeb1faea">[email&#160;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-2021-0015.

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-
0015; 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 AD, any comments received, and other information. The street 
address for Docket Operations is listed above.

FOR FURTHER INFORMATION CONTACT: Sanjay Ralhan, Aerospace Engineer, 
Large Aircraft Section, International Validation Branch, FAA, 2200 
South 216th St., Des Moines, WA 98198; telephone and fax 206-231-3223; 
email <a href="/cdn-cgi/l/email-protection#9ecdfff0f4ffe7b0ccfff2f6fff0def8ffffb0f9f1e8"><span class="__cf_email__" data-cfemail="7221131c18130b5c20131e1a131c321413135c151d04">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION:

Background

    The EASA, which is the Technical Agent for the Member States of the 
European Union, has issued EASA AD 2021-0002, dated January 6, 2021 
(EASA AD 2021-0002) (also referred to as the Mandatory Continuing 
Airworthiness Information, or the MCAI), to correct an unsafe condition 
for all Airbus SAS Model A318 series airplanes; Model A319 series 
airplanes; Model A320-211, -212, -214, -215, -216, -231, -232, -233, -
251N, -252N, -253N, -271N, -272N and -273N airplanes; and Model A321 
series airplanes. Model A320-215 airplanes are not certified 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.
    This AD was prompted by a report that following accomplishment of 
tap tests on rudders that were modified using the procedures in 
previously issued service information (Airbus Service Bulletin A320-55-
1052 dated July 28, 2017, Revision 01, dated January 28, 2015, and 
Revision 02, dated July 11, 2019, or Airbus Service Bulletin A320-55-
1059, dated March 8, 2018), disbonding of the rudder was found close to 
the lightning protection plate. Investigation results determined that 
those procedures may lead to inadequate curing of the affected part 
after modification. The FAA is issuing this AD to address disbonding of 
the rudder, which could result in reduced structural integrity of the 
rudder, and consequent reduced controllability of the airplane.

Related Service Information Under 1 CFR Part 51

    EASA AD 2021-0002 describes procedures for a one-time general 
visual inspection and a special detailed inspection (woodpecker or tap 
test) of the left- and right-hand rudder side shells for defects 
(including bulging, waviness, and disbonding) and applicable corrective 
actions. The corrective actions include accomplishing a special 
detailed inspection of any affected part with defects and a temporary 
and eventual permanent repair of the defects. EASA AD 2021-0002 also 
prohibits modification of a rudder using the procedures in previously 
issued service information. This material is reasonably

[[Page 8306]]

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, 
the FAA has been notified of the unsafe condition described in the MCAI 
referenced above. The FAA is issuing this AD because the FAA evaluated 
all pertinent information and determined the unsafe condition exists 
and is likely to exist or develop on other products of the same type 
design.

Requirements of This AD

    This AD requires accomplishing the actions specified in EASA AD 
2021-0002 described previously, as incorporated by reference, except 
for any differences identified as exceptions in the regulatory text of 
this AD.

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD 
process, the FAA initially worked with Airbus and EASA to develop a 
process to use certain EASA ADs as the primary source of information 
for compliance with requirements for corresponding FAA ADs. The FAA has 
since coordinated with other manufacturers and civil aviation 
authorities (CAAs) to use this process. As a result, EASA AD 2021-0002 
is incorporated by reference in this final rule. This AD, therefore, 
requires compliance with EASA AD 2021-0002 in its entirety, through 
that incorporation, except for any differences identified as exceptions 
in the regulatory text of this AD. Using common terms that are the same 
as the heading of a particular section in the EASA AD 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 the 
EASA AD. Service information specified in EASA AD 2021-0002 that is 
required for compliance with EASA AD 2021-0002 is available on the 
internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating 
Docket No. FAA-2021-0015.

FAA's Justification and Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD without providing an opportunity for public comments prior to 
adoption. The FAA has found that the risk to the flying public 
justifies waiving notice and comment prior to adoption of this rule 
because disbonding of the left- and right-hand rudder side shells could 
result in reduced structural integrity of the rudder, and consequent 
reduced controllability of the airplane. In addition, the compliance 
time for the required action is shorter than the time necessary for the 
public to comment and for publication of the final rule. Therefore, the 
FAA finds good cause that notice and opportunity for prior public 
comment are impracticable. In addition, for the reasons stated above, 
the FAA finds that good cause exists for making this amendment 
effective in less than 30 days.

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this AD. Send your comments to an address listed under 
ADDRESSES. Include ``Docket No. FAA-2021-0015; Project Identifier MCAI-
2021-00014-T'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the final rule, 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 final rule 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="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information you 
provide. The agency will also post a report summarizing each 
substantive verbal contact received about this final rule.

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 AD 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 AD, 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 AD. Submissions containing CBI should be sent to Sanjay 
Ralhan, Aerospace Engineer, Large Aircraft Section, International 
Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; 
telephone and fax 206-231-3223; email <a href="/cdn-cgi/l/email-protection#396a5857535840176b5855515857795f5858175e564f"><span class="__cf_email__" data-cfemail="0152606f6b60782f53606d69606f416760602f666e77">[email&#160;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.

Regulatory Flexibility Act (RFA)

    The requirements of the RFA do not apply when an agency finds good 
cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and 
comment. Because the FAA has determined that it has good cause to adopt 
this rule without notice and comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 1,630 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
               Labor cost                   Parts cost         Cost per product         Cost on U.S.  operators
----------------------------------------------------------------------------------------------------------------
Up to 16 work-hours x $85 per hour = Up               $0  Up to $1,360..............  Up to $2,216,800.
 to $1,360.
----------------------------------------------------------------------------------------------------------------

    The FAA has received no definitive data that would enable the 
agency to provide cost estimates for the on-condition actions specified 
in this AD.

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

[[Page 8307]]

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 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, and
    (2) Will not affect intrastate aviation in Alaska.

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:

2021-03-05 Airbus SAS: Amendment 39-21408; Docket No. FAA-2021-0015; 
Project Identifier MCAI-2021-00014-T.

(a) Effective Date

    This airworthiness directive (AD) becomes effective February 22, 
2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Airbus SAS airplanes, certificated in any 
category, as identified in paragraphs (c)(1) through (4) of this AD.
    (1) Model A318-111, -112, -121, and -122 airplanes.
    (2) Model A319-111, -112, -113, -114, -115, -131, -132, -133, -
151N, -153N, and -171N airplanes.
    (3) Model A320-211, -212, -214, -216, -231, -232, -233, -251N, -
252N, -253N, -271N, -272N and -273N airplanes.
    (4) Model A321-111, -112, -131, -211, -212, -213, -231, -232, -
251N, -252N, -253N, -271N, -272N, -251NX, -252NX, -253NX, -271NX, 
and -272NX airplanes.

(d) Subject

    Air Transport Association (ATA) of America Code 55, Stabilizers.

(e) Reason

    This AD was prompted by a report that following accomplishment 
of tap tests on rudders that were modified using the procedures in 
certain previously issued service information, disbonding of the 
rudder was found close to the lightning protection plate. 
Investigation results determined that those procedures may lead to 
inadequate curing of the affected part after modification. The FAA 
is issuing this AD to address disbonding of the rudder, which could 
result in reduced structural integrity of the rudder, and consequent 
reduced controllability 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 
2021-0002, dated January 6, 2021 (EASA AD 2021-0002).

(h) Exceptions to EASA AD 2021-0002

    (1) Where EASA AD 2021-0002 refers to its effective date, this 
AD requires using the effective date of this AD.
    (2) Where EASA AD 2021-0002 specifies to comply with ``the 
instructions of the AOT,'' this AD requires using the words ``the 
procedures marked as required for compliance (RC) in the AOT.''
    (3) The ``Remarks'' section of EASA AD 2021-0002 does not apply 
to this AD.

(i) No Reporting Requirement

    Although the service information referenced in EASA AD 2021-0002 
specifies to submit certain information to the manufacturer, this AD 
does not include that requirement.

(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 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 (k) of this 
AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#d7eefa968184fa969e85fae0e4e7fa969a989497b1b6b6f9b0b8a1"><span class="__cf_email__" data-cfemail="291004687f7a0468607b041e1a19046864666a694f4848074e465f">[email&#160;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 2019-0316 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 Sanjay Ralhan, 
Aerospace Engineer, Large Aircraft Section, International Validation 
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone 
and fax 206-231-3223; email <a href="/cdn-cgi/l/email-protection#e6b587888c879fc8b4878a8e8788a6808787c8818990"><span class="__cf_email__" data-cfemail="7e2d1f10141f07502c1f12161f103e181f1f50191108">[email&#160;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 2021-0002, 
dated January 6, 2021.
    (ii) [Reserved]
    (3) For EASA AD 2021-0002, contact the EASA, Konrad-Adenauer-
Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; email 
<a href="/cdn-cgi/l/email-protection#4f0e0b3c0f2a2e3c2e612a3a3d203f2e612a3a"><span class="__cf_email__" data-cfemail="adece9deedc8ccdecc83c8d8dfc2ddcc83c8d8">[email&#160;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

[[Page 8308]]

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-2021-0015.
    (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#ddbbb8b9afb8baf3b1b8babcb19db3bcafbcf3bab2ab"><span class="__cf_email__" data-cfemail="4b2d2e2f392e2c65272e2c2a270b252a392a652c243d">[email&#160;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 January 23, 2021.
Gaetano A. Sciortino,
Deputy Director for Strategic Initiatives, Compliance & Airworthiness 
Division, Aircraft Certification Service.
[FR Doc. 2021-02477 Filed 2-3-21; 2:00 pm]
BILLING CODE 4910-13-P