Voglio sapere a riguardo di…

32736

Federal Register / Vol. 86, No. 118 / Wednesday, June 23, 2021 / Rules and Regulations
As discussed previously, all U.S.registered airplanes are already in compliance with the requirements of this AD. Accordingly, notice and opportunity for prior public comment are unnecessary, pursuant to 5 U.S.C.
553b3. In addition, for the foregoing reason, the FAA finds that good cause exists pursuant to 5 U.S.C. 553d for making this amendment effective in less than 30 days.
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. FAA20210013
and Project Identifier AD202100087
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 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.

jbell on DSKJLSW7X2PROD with RULES

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 Ken Fairhurst, Manager, Systems and Equipment Section, FAA, Seattle ACO Branch, 2200
South 216th St., Des Moines, WA 98198;
phone and fax: 2062313500; email: 9FAA-SACO-AD-Inquiry@faa.gov. Any commentary that the FAA receives that is not specifically designated as CBI will
VerDate Sep<11>2014

15:58 Jun 22, 2021

Jkt 253001

be placed in the public docket for this rulemaking.
Regulatory Flexibility Act The requirements of the Regulatory Flexibility Act 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 Although the FAA estimates that 72
airplanes of U.S. registry are included in the applicability of this AD, all of these airplanes are already in compliance with the requirements of this AD.
Nevertheless, the FAA provides the following cost estimate.
The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 workhours per operator, although the agency recognizes that this number may vary from operator to operator. Since operators incorporate maintenance or inspection program changes for their affected fleets, the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate.
Therefore, the FAA estimates the average total cost per operator to be $7,650 90 work-hours $85 per workhour.
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
PO 00000

Frm 00016

Fmt 4700

Sfmt 4700

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

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

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

20211007 The Boeing Company:
Amendment 3921540; Docket No.
FAA20210013; Project Identifier AD
202100407T.
a Effective Date This airworthiness directive AD is effective July 8, 2021.
b Affected ADs None.
c Applicability This AD applies to The Boeing Company Model 7378 and 7379 airplanes, certificated in any category, with an original airworthiness certificate or original export certificate of airworthiness issued before November 20, 2020.
d Subject Air Transport Association ATA of America Code Codes 22, Autoflight; and 27, Flight controls.
e Unsafe Condition This AD was prompted by a determination that additional Certification Maintenance Requirements CMRs are necessary. The FAA is issuing this AD to ensure the availability of certain flight control system functions through maintenance tests to verify that the functions have not failed; a potential latent failure of a flight control system function, as tested by these three CMR items, if combined with unusual flight maneuvers or with another flight control system failure, could result in reduced controllability of the airplane.

E:FRFM23JNR1.SGM

23JNR1