Je veux savoir à propos de…

33151

Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Proposed Rules ESTIMATED COSTS
Action
Labor cost
Inspection

1 work-hour $85 per hour = $85

The FAA estimates the following costs to do any necessary replacement that would be required based on the
Cost per product
Parts cost
results of the proposed inspection. The agency has no way of determining the
$0

Cost on U.S.
operators
$85

$10,965

number of aircraft that might need this replacement:

ON-CONDITION COSTS
Action
Labor cost
Replacement
Inspection

Up to 10 work-hours $85 per hour = $850
1 work-hour $85 per hour = $85 per inspection cycle

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

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.

Authority for This Rulemaking
List of Subjects in 14 CFR Part 39

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.

Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

Regulatory Findings
khammond on DSKJM1Z7X2PROD with PROPOSALS

Parts cost
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 this proposed regulation:
1 Is not a significant regulatory action under Executive Order 12866,
VerDate Sep<11>2014

16:34 Jun 23, 2021

Jkt 253001

The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 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:

Leonardo S.p.a.: Docket No. FAA2021
0507; Project Identifier 2018SW117
AD.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD by August 9, 2021.
b Affected ADs None.
c Applicability This AD applies to Leonardo S.p.a. Model AB139 and AW139 helicopters, certificated in any category, with an affected part as identified in European Aviation Safety Agency now European Union Safety Agency EASA AD 20180292, dated December 28, 2018 EASA AD 20180292.

PO 00000

Frm 00005

Fmt 4702

Sfmt 4702

$23,200
$0

Cost per product Up to $24,050.
$85 per inspection cycle.

d Subject Joint Aircraft Service Component JASC
Code: 6400, Tail Rotor System.
e Unsafe Condition This AD was prompted by a report that, during a post-flight inspection of an inservice helicopter, a tail rotor slider assembly was found fractured, and the bushing and the actuator rod in the tail rotor servo were partially damaged. The FAA is proposing this AD to address corrosion in the tail rotor slider assembly caused by improper refinishing characterized by signs of circumferential refinishing consistent with sanding. The unsafe condition, if not addressed, could result in fatigue cracks and fracture of the tail rotor slider assembly, resulting in failure of the tail rotor controls and consequent loss of yaw control of the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Requirements Except as specified in paragraph h of this AD: Comply with all required actions and compliance times specified in, and in accordance with, EASA AD 20180292.
h Exceptions to EASA AD 20180292
1 Where EASA AD 20180292 refers to flight hours FH, this AD requires using hours time-in-service.
2 Where EASA AD 20180292 refers to its effective date, this AD requires using the effective date of this AD.
3 Where EASA AD 20180292 refers to Part I of the ASB, this AD requires using Part I of section 3., Accomplishment Instructions of the ASB, and where EASA
AD 20180292 refers to Part II of the ASB, this AD requires using Part II of section 3., Accomplishment Instructions of the ASB..
4 Where the service information referred to in EASA AD 20180292 specifies to return certain parts, this AD does not include that requirement.
5 Where the service information referred to in EASA AD 20180292 specifies to contact Leonardo S.p.a. if in doubt regarding if a tail rotor slider assembly needs
E:FRFM24JNP1.SGM

24JNP1