Quiero saber acerca de...

50490

Federal Register / Vol. 86, No. 172 / Thursday, September 9, 2021 / Proposed Rules
The FAA estimates the following costs to do any necessary installations or replacements that would be required
based on the results of the inspections and weighing. The FAA has no way of
determining the number of aircraft that might need these actions:

ESTIMATED COSTS OF ON-CONDITION ACTIONS
Action
Labor cost
Parts cost
Cost per product
Installation or replacement

Up to 129 work-hours $85 per hour = Up to $10,965

Up to $18,118

Up to $29,083

The FAA has included all known costs in this cost estimate. According to the manufacturer, however, some of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected operators.
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.

lotter on DSK11XQN23PROD with PROPOSALS1

Regulatory Findings The FAA determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would 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 the proposed regulation:
1 Is not a significant regulatory action under Executive Order 12866, 2 Would not affect intrastate aviation in Alaska, and 3 Would not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act.

VerDate Sep<11>2014

17:23 Sep 08, 2021

Jkt 253001

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

unsafe condition, if not addressed, could result in loss of mass or the detachment of the mass-balance weights, resulting in an unbalanced control surface, which could lead to flutter and loss of airplane control.

The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

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

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:
a. Removing Airworthiness Directive 20201208, Amendment 3921143 85
FR 36312, June 16, 2020; and b. Adding the following new airworthiness directive:

Embraer S.A. Type Certificate previously held by Empresa Brasileira de Aeronautica S.A.: Docket No. FAA
20201073; Project Identifier MCAI
202001303A.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD action by October 25, 2021.
b Affected ADs This AD replaces AD 20201208, Amendment 3921143 85 FR 36312, June 16, 2020 AD 20201208.
c Applicability This AD applies to Embraer S.A. type certificate previously held by Empresa Brasileira de Aeronautica S.A. Model EMB
505 airplanes, all serial numbers, certificated in any category.
d Subject Joint Aircraft System Component JASC
Code 5520, Elevator Structure; 5540, Rudder Structure; and 5751, Ailerons.
e Unsafe Condition This AD was prompted by reports of corrosion in the mass-balance weights of the flight control surfaces and a determination that new airworthiness limitations are necessary. The FAA is issuing this AD to address corrosion in the mass-balance weights of the flight control surfaces. The
PO 00000

Frm 00007

Fmt 4702

Sfmt 4702

g Retained Compliance Times for the Actions Required by Paragraph h of This AD, With No Changes This paragraph restates the requirements of paragraph g of AD 20201208, with no changes. For airplanes with a serial number listed in Embraer Alert Service Bulletin SB50555A004, Revision 5, dated December 12, 2019 SB50555A004R5: At the applicable compliance time specified in paragraph g1, 2, or 3 of this AD, accomplish the actions required by paragraph h of this AD.
1 For airplanes with a serial number listed in Group 1 of Embraer Alert SB505
55A004R5: Within 3 calendar days or 5
hours time-in-service TIS, whichever occurs first, after July 1, 2020 the effective date of AD 20201208.
2 For airplanes with a serial number listed in Group 3 of SB50555A004R5:
Within 30 calendar days or 50 hours TIS, whichever occurs first, after July 1, 2020 the effective date of AD 20201208.
3 For airplanes with a serial number listed in Group 2 of SB50555A004R5:
Within 60 calendar days or 100 hours TIS, whichever occurs first, after July 1, 2020 the effective date of AD 20201208.
h Retained Required Actions, Without Reporting Requirement This paragraph restates the requirements of paragraph h of AD 20201208, without the requirement to report information to Embraer. For airplanes with a serial number listed in SB50555A004R5, at the applicable time specified in paragraph g of this AD: Do the inspections identified in paragraphs h1 through 6 of this AD and, before further flight, install or replace the mass-balance, as applicable, and replace the attachment parts, in accordance with Parts I
through VI and Part VIII, as applicable, of the Accomplishment Instructions of SB50555
A004R5; except, where the service information tells you to submit information to Embraer, this AD does not require that action.
1 Do an inspection of the elevator horn mass-balance weights and attachment parts for corrosion and fragmentation, and weigh each mass-balance.

E:FRFM09SEP1.SGM

09SEP1