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64801

Rules and Regulations
Federal Register Vol. 86, No. 221
Friday, November 19, 2021

This section of the FEDERAL REGISTER
contains regulatory documents having general applicability and legal effect, most of which are keyed to and codified in the Code of Federal Regulations, which is published under 50 titles pursuant to 44 U.S.C. 1510.
The Code of Federal Regulations is sold by the Superintendent of Documents.

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20201029; Project Identifier MCAI202001126T; Amendment 3921777; AD 20212204
RIN 2120AA64

Airworthiness Directives; Airbus SAS
Airplanes Federal Aviation Administration FAA, Department of Transportation DOT.
ACTION: Final rule.

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AGENCY:

SUMMARY: The FAA is superseding Airworthiness Directive AD 201921
10, which applied to all Airbus SAS
Model A321111, 112, 131, 211, 212, 213, 231, and 232 airplanes.
AD 20192110 required a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine if the incorrect alloy was used, and replacement if necessary.
This AD continues to require a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine if the incorrect alloy was used, and replacement if necessary;
and also requires a new one-time eddy current conductivity measurement of certain other structural parts of the outer flaps to determine if the parts were properly heat treated, and replacement if necessary; and includes additional affected airplanes; as specified in a European Union Aviation Safety Agency EASA AD, which is incorporated by reference. This AD was prompted by a quality control review, which determined that the wrong aluminum alloy was used to manufacture several structural parts and by the issuance of an updated list of suspected parts, including those that may have been improperly heat treated. The FAA is issuing this AD to address the unsafe condition on these products.

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This AD is effective December 27, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of December 27, 2021.
ADDRESSES: For material incorporated by reference IBR in this AD, contact EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; phone: +49 221 8999
000; email: ADs@easa.europa.eu;
internet: www.easa.europa.eu. You may find this IBR material on the EASA
website at https ad.easa.europa.eu.
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 2062313195.
It is also available in the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2020
1029.
DATES:

Examining the AD Docket You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2020
1029; 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 W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Sanjay Ralhan, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
phone and fax: 2062313223; email:
sanjay.ralhan@faa.gov.
SUPPLEMENTARY INFORMATION:
Background EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 20200174, dated August 5, 2020 EASA AD 2020
0174 also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI, to correct an unsafe condition for all Airbus SAS Model A318111, 112, 121, and 122
airplanes; Model A319111, 112, 113,
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114, 115, 131, 132, and 133
airplanes; Model A320211, 212, 214, 215, 216, 231, 232, and 233
airplanes; and Model A321111, 112, 131, 211, 212, 213, 231, and 232
airplanes. Model A320215 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 to supersede AD 20192110, Amendment 3919776 84 FR 63794, November 19, 2019 AD 20192110.
AD 20192110 applied to all Airbus SAS Model A321111, 112, 131, 211, 212, 213, 231, and 232
airplanes. The NPRM published in the Federal Register on November 20, 2020
85 FR 74299. The NPRM was prompted by a quality control review, which determined that the wrong aluminum alloy was used to manufacture several structural parts and by the issuance of an updated list of suspected parts, including those that may have been improperly heat treated.
The NPRM proposed to continue to require a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine if the incorrect alloy was used, and replacement if necessary, as specified in EASA AD 20190012, dated January 24, 2019 which corresponds to FAA AD 20192110. The NPRM also proposed to require a new one-time eddy current conductivity measurement of certain other structural parts of the outer flaps to determine if the parts were properly heat treated, and replacement if necessary, and to include additional affected airplanes, as specified in EASA AD 20200174.
The FAA is issuing this AD to address structural parts that may not meet the certified life limit, which could result in failure of the flap trailing edge and reduced controllability 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 FAAs response to each comment.

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