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Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations
42693

ESTIMATED COSTS OF ON-CONDITION ACTIONS
Labor cost
Parts cost
Cost per product
25 work-hours $85 per hour = $2,125

$821,060

$823,185

Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs 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 Agencys 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 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, 2 Will not affect intrastate aviation in Alaska, and 3 Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

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List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

PART 39AIRWORTHINESS
DIRECTIVES

accordance with, European Union Aviation Safety Agency EASA AD 20210033, dated January 25, 2021 EASA AD 20210033.

1. The authority citation for part 39
continues to read as follows:

h Exceptions to EASA AD 20210033

Authority: 49 U.S.C. 106g, 40113, 44701.
39.13

Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20211507 Airbus SAS: Amendment 39
21654; Docket No. FAA20210371;
Project Identifier MCAI202100102T.
a Effective Date This airworthiness directive AD is effective September 9, 2021.
b Affected ADs None.

i Other FAA AD Provisions
c Applicability This AD applies to all Airbus SAS
airplanes specified in paragraphs c1
through 7 of this AD, certificated in any category.
1 Model A330201, 202, 203, 223, and 243 airplanes.
2 Model A330223F and 243F airplanes.
3 Model A330301, 302, 303, 321, 322, 323, 341, 342, and 343 airplanes.
4 Model A330841 airplanes.
5 Model A330941 airplanes.
6 Model A340211, 212, and 213
airplanes.
7 Model A340311, 312, and 313
airplanes.
d Subject Air Transport Association ATA of America Code 27, Flight controls.
e Reason This AD was prompted by reports of incorrect installation of the lower attachment parts of the trimmable horizontal stabilizer actuator THSA. The FAA is issuing this AD
to address incorrect installation of the THSA
lower attachment parts, which could lead to the loss of THSA primary load path and consequent activation of THSA secondary load path which is designed to withstand full loads only for a limited period of time, and possibly result in reduced controllability of the airplane.

Adoption of the Amendment
f Compliance Comply with this AD within the compliance times specified, unless already done.

Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

g Requirements Except as specified in paragraph h of this AD: Comply with all required actions and compliance times specified in, and in
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1 Where EASA AD 20210033 refers to its effective date, this AD requires using the effective date of this AD.
2 The Remarks section of EASA AD
20210033 does not apply to this AD.
3 Where any service information in EASA
AD 20210033 specifies to contact Airbus in case of findings, this AD requires doing a repair using a method approved by the Manager, Large Aircraft Section, International Validation Branch, FAA; or EASA; or Airbus SASs EASA Design Organization Approval DOA. If approved by the DOA, the approval must include the DOA-authorized signature.

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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 j of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. 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 SASs EASA DOA. If approved by the DOA, the approval must include the DOA-authorized signature.
3 Required for Compliance RC: Except as required by paragraph i2 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 operators 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
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