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Federal Register / Vol. 86, No. 198 / Monday, October 18, 2021 / Rules and Regulations
if it is properly staked and replacement of the spherical bearing with a new spherical bearing if it is determined that the spherical bearing was not properly staked.
Bell Alert Service Bulletin 4291950, Revision A, dated December 2, 2019, specifies procedures for an initial inspection of the lower surface of the spherical bearing in the directional
control bellcrank assembly to determine if it is properly staked, additional inspections, and corrective actions. The corrective actions include installation of a new spherical bearing. The additional inspections include an inspection of the upper surface of the spherical bearing in the directional control bellcrank assembly to determine if it is properly staked, and an inspection of the bore in
the bellcrank assembly for excessive wear.
Costs of Compliance The FAA estimates that this AD
affects 120 helicopters of U.S. Registry.
Labor rates are estimated at $85 per work-hour. Based on these numbers, the FAA estimates the following costs to comply with this AD.

ESTIMATED COSTS
Action
Labor cost
Inspection

1 work-hour $85 per hour =
$85 per inspection cycle.

The FAA estimates the following costs to do any necessary actions that would be required based on the results
Cost per product
Parts cost $0

Cost on U.S.
operators
$85 per inspection cycle

of the inspection. The agency has no way of determining the number of
$10,200 per inspection cycle.

helicopters that might need these actions:

ON-CONDITION COSTS
Action
Labor cost
Replacement Spherical Bearing
Repair/replacement Bellcrank
Repetitive Inspections

7 work-hours $85 per hour = $595
4 work-hours $85 per hour = $340
1 work-hour $85 per hour = $85 per inspection cycle.

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 helicopters identified in this rulemaking action.

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Regulatory Findings
16:35 Oct 15, 2021

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.
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:

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

Jkt 256001

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

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

20212011 Bell Textron Canada Limited Type Certificate Previously Held by Bell
PO 00000

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Cost per product
$56
2,856
0

$651.
3,196.
85 per inspection cycle.

Helicopter Textron Canada Limited:
Amendment 3921749; Docket No.
FAA20210575; Project Identifier MCAI202000545R.
a Effective Date This airworthiness directive AD is effective November 22, 2021.
b Affected ADs None.
c Applicability This AD applies to Bell Textron Canada Limited type certificate previously held by Bell Helicopter Textron Canada Limited Model 429 helicopters, certificated in any category, serial numbers 57001 through 57210 inclusive, 57212 through 57344
inclusive, 57346 through 57371 inclusive, 57374 through 57377 inclusive, and 57380.
d Subject Joint Aircraft Service Component JASC
Code: 6700, Rotorcraft Flight Control.

PART 39AIRWORTHINESS
DIRECTIVES

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.

VerDate Sep<11>2014

Parts cost
e Unsafe Condition This AD was prompted by reports of incorrectly staked spherical bearings in the directional control bellcrank assembly. The FAA is issuing this AD to address incorrectly staked spherical bearings in the directional control bellcrank assembly. This condition, if not addressed, could result in wear or elongation of the bore in the bellcrank, which could result in reduced helicopter directional control.

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