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Federal Register / Vol. 86, No. 242 / Tuesday, December 21, 2021 / Rules and Regulations
Large Aircraft Section, FAA, International Validation Branch, 2200
South 216th St., Des Moines, WA 98198;
telephone and fax 2062313223; email Sanjay.Ralhan@faa.gov.
SUPPLEMENTARY INFORMATION:

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Comments Invited The FAA invites you to send any written data, views, or arguments about this final rule. Send your comments to an address listed under ADDRESSES.
Include Docket No. FAA20211065;
Project Identifier MCAI202101264T
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 https
www.regulations.gov, 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, FAA, International Validation Branch, 2200 South 216th St., Des Moines, WA 98198; telephone and fax 2062313223; email Sanjay.Ralhan@
faa.gov. 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
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Union, has issued EASA AD 20210256, dated November 16, 2021 EASA AD
20210256 also referred to as the MCAI, to correct an unsafe condition for all Model A319111, 112, 113, 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.
This AD was prompted by the determination that fatigue cracking may occur at the left-hand and right-hand wing manhole access panel attachment holes in the bottom wing skin panels 2, between rib 13 and rib 23, on airplanes with Sharklets or its structural reinforcements installed. The FAA is issuing this AD to address this condition, which could lead to crack propagation, possibly resulting in reduced structural integrity of the wings. See the MCAI for additional background information.
Related Service Information Under 1
CFR Part 51
EASA AD 20210256 specifies procedures for repetitive detailed visual inspections to detect discrepancies cracking of the left-hand and righthand wing manhole access panel attachment holes in the bottom wing skin panels 2, between rib 13 and rib 23.
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.
FAAs Determination These products have been approved by the aviation authority of another country and are approved for operation in the United States. Pursuant to the FAAs bilateral agreement with this State of Design Authority, it has notified the FAA of the unsafe condition described in the MCAI described above.
The FAA is issuing this AD after determining that the unsafe condition described previously is likely to exist or develop on other products of the same type designs.
Requirements of This AD
This AD requires accomplishing the actions specified in EASA AD 2021
0256 described previously, except for any differences identified as exceptions in the regulatory text of this AD.

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Explanation of Required Compliance Information In the FAAs 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, EASA AD 20210256
is incorporated by reference in this AD.
This AD requires compliance with EASA AD 20210256 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 EASA
AD 20210256 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 Actions and Compliance Times in EASA AD 20210256.
Service information required by EASA
AD 20210256 for compliance will be available at https www.regulations.gov by searching for and locating Docket No.
FAA20211065 after this AD is published.
Interim Action The FAA considers this AD interim action. If final action is later identified, the FAA might consider further rulemaking then.
FAAs Justification and Determination of the Effective Date Section 553b3B of the Administrative Procedure Act APA 5
U.S.C. 551 et seq. authorizes agencies to dispense with notice and comment procedures for rules when the agency, for good cause, finds that those procedures are impracticable, unnecessary, or contrary to the public interest. Under this section, an agency, upon finding good cause, may issue a final rule without providing notice and seeking comment prior to issuance.
Further, section 553d of the APA
authorizes agencies to make rules effective in less than thirty days, upon a finding of good cause.
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 forgoing notice and comment prior to adoption of this rule because fatigue cracking at the wing
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