Federal Register - July 12, 2021
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Source: Federal Register
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Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Proposed Rules
removing them instead. EASA AD
20210023 requires operators to inform all flight crews and thereafter to operate the helicopter accordingly.
However, this proposed AD would not require those actions. Where paragraph 4 of EASA AD 20200023 allows modifying a Group 2 helicopter into a Group 1 helicopter, this proposed AD
would also require accomplishing the requirements of paragraph g1 of this AD. Finally, the service information referenced in EASA AD 20210023
requires reporting certain information, whereas this proposed AD would not.
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Costs of Compliance The FAA estimates that this proposed AD would affect 390 helicopters of U.S.
Registry. The FAA estimates that operators may incur the following costs in order to comply with this proposed AD. Labor costs are estimated at $85 per work-hour.
Accomplishing a ground test of the UP/DOWN switches for proper function takes a minimal amount of time for a nominal cost. Replacing a DUNLOP
cyclic stick grip, if required, takes about 2.5 work-hours and parts cost about $2,500 for an estimated cost of $2,713.
Installing the placard and revising the existing RFM for your helicopter would take about 0.5 work-hour for an estimated cost of $43 per helicopter and $16,770 for the U.S. fleet.
Modifying the electrical wiring of the DUNLOP cyclic stick would take up to 4 work-hours and parts would cost $2,147 for an estimated cost of up to $2,487 per helicopter and $969,930 for the U.S. fleet. Removing the placard and revising the existing RFM for your helicopter would take about 0.5 workhour for an estimated cost of $43 per helicopter and $16,770 for the U.S. fleet.
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 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, 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
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:
a. Removing Airworthiness Directive AD 20202403, Amendment 39
21333 85 FR 76955, December 1, 2020;
and b. Adding the following new AD:
Airbus Helicopters: Docket No. FAA2021
0559; Project Identifier MCAI2021
00079R.
a Comments Due Date The FAA must receive comments on this airworthiness directive AD by August 26, 2021.
b Affected ADs This AD replaces AD 20202403, Amendment 3921333 85 FR 76955, December 1, 2020 AD 20202403.
c Applicability This AD applies to Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350D, AS355E, AS355F, AS355F1, and AS355F2 helicopters, certificated in any category, as identified in
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European Union Aviation Safety Agency EASA AD 20210023, dated January 19, 2021 EASA AD 20210023.
d Subject Joint Aircraft System Component JASC
Code 2500, Cabin Equipment/Furnishings.
e Unsafe Condition This AD was prompted by the development of a modification of the electrical wiring of the hoist control on the DUNLOP cyclic stick grip. The FAA is issuing this AD to prevent inadvertent activation of the rescue hoist cable cutter and consequent detachment of an external load or person from the helicopter hoist. This condition could result in personal injury or injury to persons on the ground.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Requirements 1 For helicopters with DUNLOP cyclic stick grip manufacturer part number AC66444 with UP/DOWN switches for rescue hoist control installed, before each hoist operation after December 16, 2020 the effective date of AD 20202403, accomplish a ground test of the UP/DOWN
switches for proper function. If there is any uncommanded hoist action, before further flight, remove the DUNLOP cyclic stick grip from service. Accomplishing the modification in paragraph 2 of EASA AD
20210023 constitutes terminating action for the requirements of this paragraph.
2 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 20210023.
h Exceptions to EASA AD 20210023
1 Where EASA AD 20210023 refers to October 8, 2020 the effective date of EASA
Emergency AD 20200217E, dated October 6, 2020 EASA AD 20200217E, this AD
requires using the effective date of this AD.
2 Where the service information referenced in paragraph 1 of EASA AD
20200023 specifies that the work must be performed on the helicopter by the operator, this AD requires that the work be accomplished by a mechanic that meets the requirements of 14 CFR part 65 subpart D.
3 Where EASA AD 20210023 refers to its effective date, this AD requires using the effective date of this AD.
4 Where EASA AD 20210023 refers to flight hours FH, this AD requires using hours time-in-service.
5 Where the service information referenced in EASA AD 20210023 specifies to discard certain placards and Flight Manual pages that were required by EASA AD 2020
0217E, this AD requires removing them.
6 Where paragraph 3 of EASA AD 2021
0023 specifies to inform all flight crews and, thereafter, operate the helicopter accordingly, this AD does not require those actions.
7 Where paragraph 4 of EASA AD 2020
0023 allows modifying a Group 2 helicopter into a Group 1 helicopter, this AD also
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