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Federal Register / Vol. 86, No. 93 / Monday, May 17, 2021 / Rules and Regulations
26653

ESTIMATED COSTS
Action
Labor cost
Remove and replace critical parts
Perform maintenance tasks
Revise the ALS and AMP

12 work-hours $85 per hour = $1,020
1 work-hour $85 per hour = $85
1 work-hour $85 per hour = $85

The FAA estimates the following costs to do any necessary corrective actions that would be required based on
Parts cost
the results of the mandated maintenance tasks. The agency has no way of
Cost per product
$1,152
1,152
0

Cost on U.S.
operators
$2,172
1,237
85

$925,272
526,962
36,210

determining the number of aircraft that might need these actions.

ON-CONDITION COSTS
Action
Labor cost
Perform corrective action

1 work-hour $85 per hour = $85

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.

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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.

VerDate Sep<11>2014

21:39 May 14, 2021

Jkt 253001

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:

Authority: 49 U.S.C. 106g, 40113, 44701.
Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20210802 Safran Helicopter Engines, S.A. Type Certificate previously held by Turbomeca, S.A.: Amendment 39
21496; Docket No. FAA20201038;
Project Identifier MCAI202000569E.
a Effective Date This airworthiness directive AD is effective June 21, 2021.
b Affected ADs None.
c Applicability This AD applies to all Safran Helicopter Engines, S.A. Safran Type Certificate previously held by Turbomeca, S.A. Arriel 2D and Arriel 2E model turboshaft engines.
d Subject Joint Aircraft System Component JASC
Code 7250, Turbine Section.
e Unsafe Condition This AD was prompted by the manufacturer revising the maintenance and overhaul manuals to introduce new or more restrictive airworthiness limitations and
PO 00000

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Fmt 4700

Sfmt 4700

$0

$85

maintenance tasks. The FAA is issuing this AD to prevent failure of the engine. The unsafe condition, if not addressed, could result in uncontained release of a critical part, damage to the engine, and damage to the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions
PART 39AIRWORTHINESS
DIRECTIVES

39.13

Cost per product
Parts cost
1 Replace each critical part before reaching the in-service life limits specified in paragraph 1.C., Table of authorized inservice life limits for the ARRIEL 2D, or Table of authorized in-service life limits for the ARRIEL 2E, Chapter 051000 of the Safran ARRIEL Maintenance Manual MM
for that engine.
2 Before reaching the periodicity specified in paragraph 1., Tables of Mandatory Maintenance Tasks, table D., Scheduled inspection, Chapter 051000
of the Safran ARRIEL MM for that engine, perform all maintenance tasks specified in table D.
3 When the engine meets the conditions specified in paragraph 1., Tables of Mandatory Maintenance Tasks, table E., Unscheduled inspection, Chapter 0510
00 of the Safran ARRIEL MM for that engine, perform the maintenance tasks specified in table E.
4 If, during performance of the maintenance tasks required by paragraph g2 or 3 of this AD, a discrepancy is found, as defined in the applicable airworthiness limitation section ALS, perform the corrective actions specified in paragraph 1., Tables of Mandatory Maintenance Tasks, table D., Scheduled inspection, or table E. Unscheduled inspection, Chapter 051000 of the Safran ARRIEL MM for the engine.
5 If no compliance time is identified in Chapter 051000 of the Safran ARRIEL MM, perform the corrective action before further flight.

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