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Federal Register / Vol. 86, No. 198 / Monday, October 18, 2021 / Rules and Regulations commenter also remarked that certain current FAA ADs allow pilots to perform visual inspections because those inspections do not require specialized tools, training, or any disassembly and that the service information referred to in EASA AD
20210099 mentions that a pilot can perform the visual inspection.
The FAA does not agree with the commenters request. Although there are instances where the FAA does allow a pilot to do a visual check, for this AD, the FAA is not allowing this due to the criticality of the crack location, the lack of definition of what pilot training is sufficient to do this visual inspection, and because the area being inspected is likely to need cleaning prior to each inspection. The FAA has revised paragraph h of this AD to clarify that
a pilot cannot do the visual check and that it must be performed by a qualified mechanic.
Conclusion The FAA reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting this AD
as proposed. Except for minor editorial changes, this AD is adopted as proposed in the NPRM. None of the changes will increase the economic burden on any operator. Accordingly, the FAA is issuing this AD to address the unsafe condition on these products.
Related Service Information Under 1
CFR Part 51
EASA AD 20210099 specifies procedures for repetitive visual
57551

inspections of the right-hand side of the vertical fin spar for cracking; repetitive cleaning and repetitive detailed inspections for cracking of the vertical fin spar and vertical fin upper attachments; and corrective action. The corrective action includes repair.
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.
Costs of Compliance The FAA estimates that this AD
affects 650 helicopters of U.S. registry.
The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Action Retained actions from AD
20210415.
New actions

Labor cost
Parts cost
7 work-hours $85 per hour = $595, per inspection/
cleaning cycle.
4 work-hours $85 per hour = $340, per inspection/
cleaning cycle.

The FAA estimates the following costs to do any necessary on-condition actions that would be required based on
Cost per product
Cost on U.S. operators
$0

$595, per inspection/cleaning cycle.

$386,750, per inspection/
cleaning cycle.

0

$340, per inspection/cleaning cycle.

$221,000, per inspection/
cleaning cycle.

the results of any required actions. The FAA has no way of determining the
number of helicopters that might need these on-condition actions:

ESTIMATED COSTS OF ON-CONDITION ACTIONS
Labor cost
Parts cost
Cost per product
4 work-hours $85 per hour = $340

$17,052

$17,392

jspears on DSK121TN23PROD with RULES1

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
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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.
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:
a. Removing Airworthiness Directive AD 20210415, Amendment 39
21437 86 FR 13165, March 8, 2021;
and

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