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Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Rules and Regulations
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Performing a functional check of the wheeled landing gear system takes about 4 work-hours for an estimated cost of $340 per helicopter and $37,400
for the U.S. fleet, per cycle. Performing a functional check of the float/life raft kit takes about 2 work-hours for an estimated cost of $170 per helicopter and $18,700 for the U.S. fleet, per cycle.
Performing an operational check of the hoist kit cable anti-foul assembly takes about 2 work-hours for an estimated cost of $170 per helicopter and $18,700 for the U.S. fleet, per cycle.
Cleaning, visually inspecting, and lubricating the rescue hoist cable takes about 2 work-hours for an estimated cost of $170 per helicopter and $18,700
for the U.S. fleet, per cycle. Performing an operational check of the hoist kit speed limit switches and the electrical system takes about 0.5 work-hour for an estimated cost of $43 per helicopter and $4,730 for the U.S. fleet, per cycle.
Performing a functional check of the cable cutter cartridge electrical system takes about 3 work-hours for an estimated cost of $255 per helicopter and $28,050 for the U.S. fleet, per cycle.
The FAA has no way of determining the estimated costs to do allowable repairs based on the results of the CMR
tasks. If required, replacing the float/life raft takes about 2 work-hours and parts cost about $5,000 for an estimated cost of $5,170 per float/life raft. Replacing the anti-foul assembly takes about 3
work-hours and parts cost about $1,500
for an estimated cost of $1,755 per antifoul assembly. Replacing a rescue hoist cable takes about 3 work-hours and parts cost about $3,150 for an estimated cost of $3,405 per rescue hoist cable.
Overhauling a rescue hoist assembly costs about $83,000 and it takes about 8 work-hours to remove and reinstall the hoist for a labor cost of $680, for a total estimated cost of $83,680 per helicopter, per overhaul cycle.
Alternatively, replacing a hoist takes about 8 work-hours and parts cost about $200,000 for an estimated cost of $200,680 per helicopter, per replacement 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

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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.
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.
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 adding the following new airworthiness directive:

20211315 Bell Textron Canada Limited Type Certificate Previously Held by Bell Helicopter Textron Canada Limited:
Amendment 3921620; Docket No.
FAA20210267; Project Identifier 2017SW110AD.
a Effective Date This airworthiness directive AD is effective July 29, 2021.
b Affected ADs None.

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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 and subsequent.
d Subject Joint Aircraft Service Component JASC
Code: 3200, Landing Gear Systems, and 2560, Emergency Equipment.
e Unsafe Condition This AD was prompted by parts remaining in service beyond their fatigue life or beyond maintenance intervals required by the certification maintenance requirements CMRs of the Instructions for Continued Airworthiness. The FAA is issuing this AD
to prevent failure of a part, which could result in loss of control of the helicopter.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions 1 Before further flight after the effective date of this AD, remove from service any part that has reached or exceeded its life limit as follows. Thereafter, remove from service each part on or before reaching its life limit as follows:
i Tail rotor outboard flapping bearing part number P/N 429312103117 and 429
312103119: 15,000 total hours time-inservice TIS.
ii Hoist kit cable cutter cartridge P/N
42315281: 5 years since date of manufacture.
2 Before further flight after the effective date of this AD, perform the following CMR
tasks for any part that has reached or exceeded its CMR interval as follows.
Thereafter, perform the following CMR tasks for each part on or before reaching its CMR
interval as follows:
Note 1 to paragraph g2: Chapter 4
Airworthiness Limitations Schedule of Bell Helicopter 429 Maintenance Manual BHT
429MM1 to Revision 26, dated September 9, 2016, contains additional information about the CMR tasks.
i Wheeled Landing Gear System P/N 429
705001101: 800 hours TIS or 1 year, whichever occurs first, perform a functional check of the Emergency Gear Release. If the functional check fails, before further flight, repair in accordance with FAA-approved procedures.
ii Float/Life Raft Kit P/N 429706069
101: 1,600 hours TIS, perform a functional check of the float/life raft kit electrical system to determine if there are any dormant failures including: Manual inflation switch, water immersion switch, auto-activation relay, manual activation relay, raft activation relay, test activation relay, and the fuse disc elements. If there is a failure, before next flight over water, replace the float/life raft.
iii Hoist Kit P/N 429706001101:
A Before the first flight of the day involving a hoist operation, perform an operational check of the hoist cable anti-foul
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