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Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations g Required Actions 1 Within 25 hours time-in-service after the effective date of this AD, replace relay panel assembly P/N SLS075002107 with relay panel assembly P/N SLS075002109
by following the Accomplishment Instructions, paragraphs 1.a. through 3, of Bell Helicopter Alert Service Bulletin 505
1704, dated December 6, 2017.
2 As of the effective date of this AD, do not install relay panel assembly P/N SLS
075002107 on any helicopter.
h 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 i1 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.

jbell on DSKJLSW7X2PROD with RULES

i Related Information 1 For more information about this AD, contact Hal Jensen, Aerospace Engineer, Operational Safety Branch, Compliance &
Airworthiness Division, FAA, 950 LEnfant Plaza N SW, Washington, DC 20024;
telephone 202 2679167; email hal.jensen@
faa.gov.
2 The subject of this AD is addressed in Transport Canada AD CF201736, dated December 15, 2017. You may view the Transport Canada AD at https
www.regulations.gov in Docket No. FAA
20210377.
j Material Incorporated by Reference 1 The Director of the Federal Register approved the incorporation by reference 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 the AD specifies otherwise.
i Bell Helicopter Alert Service Bulletin 5051704, dated December 6, 2017.
ii Reserved 3 For Bell Helicopter service information identified in this AD, contact Bell Textron Canada Limited, 12,800 Rue de lAvenir, Mirabel, Quebec J7J1R4, Canada; telephone 450 4372862 or 800 3638023; fax 450
4330272; email productsupport@
bellflight.com; or at https
www.bellflight.com/support/contact-support.
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 817 2225110.
5 You may view this service information that is incorporated by reference at the
VerDate Sep<11>2014

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National Archives and Records Administration NARA. For information on the availability of this material at NARA, email: fr.inspection@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.
Issued on July 27, 2021.
Ross Landes, Deputy Director for Regulatory Operations, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202119251 Filed 9721; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210607; Project Identifier MCAI202001249R; Amendment 3921666; AD 20211604
RIN 2120AA64

Airworthiness Directives; Leonardo S.p.a. Helicopters
The FAA is adopting a new airworthiness directive AD for all Leonardo S.p.a. Model AB412 and AB412 EP helicopters. This AD was prompted by a report of the failure of both inverters in-flight, leading to an autopilot disconnection. This AD
requires a one-time inspection of the clearance between a certain protective grommet installed in the emergency bus interlock compartment and the cable assemblies passing through it, and depending on the finding, applicable corrective actions, as specified in a European Union Aviation Safety Agency EASA AD, which is incorporated by reference. The FAA is issuing this AD
to address the unsafe condition on these products.
DATES: This AD becomes effective September 23, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of September 23, 2021.
The FAA must receive comments on this AD by October 25, 2021.
ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:
Federal eRulemaking Portal: Go to https www.regulations.gov. Follow the instructions for submitting comments.
Fax: 202 4932251.

PO 00000

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Mail: U.S. Department of Transportation, Docket Operations, M
30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hand Delivery: Deliver to Mail address above between 9 a.m. and 5
p.m., Monday through Friday, except Federal holidays.
For EASA material incorporated by reference IBR in this AD, contact 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 IBR material on the EASA
website at https ad.easa.europa.eu.
You may view the EASA 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 the EASA material at the FAA, call 817 2225110. The EASA
material is also available at https
www.regulations.gov by searching for and locating Docket FAA20210607.
Examining the AD Docket
Federal Aviation Administration FAA, DOT.
ACTION: Final rule; request for comments.
AGENCY:

SUMMARY:

50239

You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210607; 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 AD, the EASA AD, any comments received, and other information. The street address for Docket Operations is listed above.
FOR FURTHER INFORMATION 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.
SUPPLEMENTARY INFORMATION:
Background The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20200192, dated September 4, 2020
EASA AD 20200192 also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI, to correct an unsafe condition for Leonardo S.p.a. formerly AgustaWestland S.p.A., Agusta S.p.A., and Costruzioni Aeronautiche Giovanni Agusta Model AB412 and AB412 EP
helicopters, all serial numbers.
This AD was prompted by a report of the failure of both inverters in-flight, leading to an autopilot disconnection.
Subsequent inspection identified
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