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Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations 39.13

Costs of Compliance There are no costs of compliance with this AD because there are no helicopters with this type certificate on the U.S.
Registry.

20211604 Leonardo S.p.a.: Amendment 3921666; Docket No. FAA20210607;
Project Identifier MCAI202001249R.

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.
Regulatory Findings The FAA determined that 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 this regulation:
1 Is not a significant regulatory action under Executive Order 12866, and 2 Will not affect intrastate aviation in Alaska.
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:
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Amended
has good cause to adopt this rule without notice and comment, RFA
analysis is not required.

PART 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

Authority: 49 U.S.C. 106g, 40113, 44701.

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16:25 Sep 07, 2021

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2. The FAA amends 39.13 by adding the following new airworthiness directive:

a Effective Date This airworthiness directive AD becomes effective September 23, 2021.
b Affected ADs None.
c Applicability This AD applies to all Leonardo S.p.a.
Model AB412 and AB412 EP helicopters, certificated in any category.
d Subject Joint Aircraft System Component JASC
Code 2400, Electrical Power System.
e Unsafe Condition This AD was prompted by a report of the failure of both inverters in-flight, leading to an autopilot disconnection. Subsequent inspection identified chafing of a wire in the alternating current AC power system cable assembly, due to a protective grommet incorrectly installed in the emergency bus interlock compartment. Insufficient clearance between a protective grommet and the cable assemblies that pass through it could result in damage including chafing to the cable assemblies. The FAA is issuing this AD to address incorrect installation of a protective grommet in the emergency bus interlock compartment and chafed wiring in the AC
power system cable assembly. Chafed wiring in the AC power system cable assembly, if not addressed, could lead to a short in the AC power system, resulting in autopilot failure, possibly the loss of other avionics systems, increased pilot workload, and reduced control of the helicopter.
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 Union Aviation Safety Agency EASA AD 20200192, dated September 4, 2020 EASA AD 20200192.
h Exceptions to EASA AD 20200192
1 Where EASA AD 20200192 refers to its effective date, this AD requires using the effective date of this AD.
2 Where the service information referenced in EASA AD 20200192 specifies to discard a certain part, this AD requires removing that part from service.
3 Where the service information referenced in EASA AD 20200192 specifies to replace a certain part, this AD requires removing that part from service.
4 Where EASA AD 20200192 refers to flight hours FH, this AD requires using hours time-in-service.

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5 The Remarks section of EASA AD
20200192 does not apply to this AD.
6 Where paragraph 2 of EASA AD 2020
0192 refers to any discrepancy for this AD, discrepancies include inadequate clearance between the protective grommet and AC
power system cable assembly and damaged chafed AC power system cable assemblies.
i No Reporting Requirement Although the service information referenced in EASA AD 20200192 specifies to submit certain information to the manufacturer, this AD does not include that requirement.
j Special Flight Permit Special flight permits, as described in 14
CFR 21.197 and 21.199, are prohibited.
k 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 l 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, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.
l Related Information For more information about this AD, contact Jacob Fitch, Aerospace Engineer, COS
Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817 2224130;
email jacob.fitch@faa.gov.
m Material Incorporated by Reference 1 The Director of the Federal Register approved the incorporation by reference IBR of the service information listed in this paragraph under 5 U.S.C. 552a and 1 CFR
part 51.
2 You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.
i European Union Aviation Safety Agency EASA AD 20200192, dated September 4, 2020.
ii Reserved 3 For EASA AD 20200192, contact the EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; internet www.easa.europa.eu. You may find this EASA AD on the EASA website at https
ad.easa.europa.eu.
4 You may view this service information 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 8172225110. This material may be found in the AD docket on
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