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Federal Register / Vol. 86, No. 111 / Friday, June 11, 2021 / Rules and Regulations
the FAA might consider further rulemaking then.
Costs of Compliance The FAA estimates that this AD
affects 331 helicopters of U.S. Registry.
Labor rates are estimated at $85 per work-hour. Based on these numbers, the FAA estimates that operators may incur the following costs in order to comply with this AD.
Inspecting the nuts on the MRA
pistons takes about 1 work-hour for an estimated cost of $85 per helicopter and $28,135 for the U.S. fleet. Replacing the MRA takes about 7 work-hours and parts cost $325,081 for an estimated cost of $325,676 per helicopter. Repairing the MRA takes up to about 8 work-hours and parts cost about $110 for an estimated cost of up to $790 per MRA.
Reporting information takes about 1
hour for an estimated cost of $85 per helicopter and $28,135 for the U.S. fleet.

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Paperwork Reduction Act A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB control number. The control number for the collection of information required by this AD is 21200056. The paperwork cost associated with this AD
has been detailed in the Costs of Compliance section of this document and includes time for reviewing instructions, as well as completing and reviewing the collection of information.
Therefore, all reporting associated with this AD is mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to Information Collection Clearance Officer, Federal Aviation Administration, 10101
Hillwood Pkwy., Fort Worth, TX 76177
1524.
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
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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.

Note 1 to paragraph c: Helicopters with an EC135P3H designation are Model EC135P3 helicopters. Helicopters with an EC135T3H designation are Model EC135T3
helicopters.

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.

e Reason This AD was prompted by a report of increased control force in the collective axis.
The FAA is issuing this AD to prevent failure of the main rotor actuator and subsequent loss of control of the helicopter.

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:

20211117 Airbus Helicopters Deutschland GmbH AHD: Amendment 3921579; Docket No. FAA20210199;
Project Identifier MCAI202100016R.
a Effective Date This airworthiness directive AD is effective July 16, 2021.
b Affected Airworthiness Directives ADs None.
c Applicability This AD applies to all Airbus Helicopters Deutschland GmbH AHD Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, and EC135T3
helicopters, certificated in any category.

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d Subject Joint Aircraft System Component JASC
Code: 6710, Main Rotor Control.

f Compliance Comply with this AD within the compliance times specified, unless already done.
g Requirements Except as specified in paragraph h of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD 20180284, dated December 20, 2018 EASA AD 20180284.
h Exceptions to EASA AD 20180284
1 Where EASA AD 20180284 refers to its effective date, this AD requires using the effective date of this AD.
2 Where paragraph 3 of EASA AD 2018
0284 specifies contacting Airbus Helicopters, this AD requires performing the corrective action in accordance with FAA-approved procedures.
3 Where paragraph 4 of EASA AD 2018
0284 specifies an alternative method to comply with the requirements of paragraph 3 of EASA AD 20180284 by replacing an affected part, this AD requires removing the affected part from service as an alternative method.
4 Where paragraph 1 of EASA AD 2018
0284 specifies a compliance time of 3
months or 50 flight hours, whichever occurs first, this AD requires a compliance time of within 50 hours time-in-service TIS from the effective date of this AD.
5 Where paragraph 2 of EASA AD 2018
0284 specifies a compliance time of 15
days, this AD requires using a compliance time of 30 days.
6 The Remarks section of EASA AD
20180284 does not apply to this AD.
i Alternative Methods of Compliance AMOCs 1 The Manager, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in paragraph j of this AD.
Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov.
2 Before using any approved AMOC, notify your appropriate principal inspector,
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