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Federal Register / Vol. 86, No. 119 / Thursday, June 24, 2021 / Rules and Regulations material on the EASA website at https
ad.easa.europa.eu. You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 817 2225110. It is also available in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20210256.
Examining the AD Docket You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2021
0256; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.
The AD docket contains this final rule, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT:
Katherine Venegas, Aviation Safety Engineer, Los Angeles ACO Branch, Compliance & Airworthiness Division, FAA, 3960 Paramount Blvd., Lakewood, CA 90712; telephone 562 6275353;
email katherine.venegas@faa.gov.
SUPPLEMENTARY INFORMATION:

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Background EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 20190198, dated August 15, 2019 EASA AD 2019
0198, to correct an unsafe condition for all Airbus Helicopters Deutschland GmbH AHD, formerly Eurocopter Deutschland GmbH, Model MBBBK117
D2 helicopters.
The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to Airbus Helicopters Deutschland GmbH Model MBBBK 117
D2 helicopters. The NPRM published in the Federal Register on April 2, 2021
86 FR 17322. The NPRM was prompted by a short circuit in a yaw trim actuator connector that occurred during production electrical tests.
Subsequent investigations determined that a sharp edge in the backshell damaged the wiring insulation. The NPRM proposed to require replacing certain backshells, as specified in an EASA AD.
The FAA is issuing this AD to address an unsafe condition that could result in yaw or pitch trim runaway and
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subsequent loss of control of the helicopter. See EASA AD 20190198 for additional background information.
Discussion of Final Airworthiness Directive Comments The FAA gave the public the opportunity to participate in developing this final rule. The FAA received comments from one commenter;
however, none of the comments requested a change to the requirements proposed by the NPRM or the determination of the cost to the public.
Conclusion The FAA reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule as proposed.
Related Service Information Under 1
CFR Part 51
EASA AD 20190198 specifies replacing backshells part number P/N
M85049/9013W02 if manufactured by AMPHENOL or if the manufacturer is unknown affected part with backshells P/N M85049/9013W02 not manufactured by AMPHENOL
serviceable part. EASA AD 20190198
also prohibits the re-installation of an affected part.
This material is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section.
Differences Between This AD and the EASA AD
EASA AD 20190198 applies to all Model MBBBK117 D2 helicopters, whereas this AD applies to that model helicopter with an affected part installed instead. EASA AD 20190198
requires replacing each affected part with a serviceable part within 9 months, whereas this AD requires that replacement within 30 hours time-inservice instead.
Costs of Compliance The FAA estimates that this AD
affects 30 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.
Replacing each backshell takes about 8 work-hours and parts cost $220, for an estimated cost of $900 per backshell.
Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs authority to issue
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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.
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:

20211209 Airbus Helicopters Deutschland GmbH AHD: Amendment 3921596; Docket No. FAA20210256;
Project Identifier MCAI202000480R.

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