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Federal Register / Vol. 86, No. 47 / Friday, March 12, 2021 / Rules and Regulations
h Alternative Methods of Compliance AMOCs 1 The Manager, Strategic Policy Rotorcraft Section, 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 certification office, send it to the attention of the person identified in paragraph i1 of this AD.
Information may be emailed to: 9-DenverAircraft-Cert@faa.gov or ronnea.l.derby.@
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.
i Related Information 1 For more information about this AD, contact Ronnea L. Derby, Aerospace Engineer, Denver ACO Branch, FAA, 26805
East 68th Ave., Room 214, Denver, CO 80249;
telephone 3033421093; email ronnea.l.derby.@faa.gov.
2 The subject of this AD is addressed in European Aviation Safety Agency now European Union Aviation Safety Agency EASA AD 20150098, dated June 2, 2015, and EASA AD 20150220, dated November 9, 2015. You may view the EASA ADs on the internet at https www.regulations.gov in Docket No. FAA20154497.
3 The following documents, which are not incorporated by reference, contain additional information about the subject of this AD: Eurocopter Alert Service Bulletin ASBBO 10580118, Revision 1, dated November 29, 1995; Eurocopter Information Notice 2370I24, Revision 0, dated November 15, 2011; Eurocopter Service Bulletin SBBO10580119, dated November 7, 1994; and Eurocopter Service Bulletin SB
BO10590104, Revision 1, dated June 21, 2010.
4 Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs j3 and 4 of this AD.
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 Eurocopter Alert Service Bulletin ASB
MBBBK11790118, Revision 2, dated May 4, 2009.
ii Eurocopter Alert Service Bulletin ASB
BO10590103, Revision 4, dated June 21, 2010.
iii Eurocopter Flight Manual BK117 A3
Temporary Revision 9, dated September 22, 2006.
iv Eurocopter Flight Manual BK117 A4
Temporary Revision 5, dated September 22, 2006.

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Issued on February 19, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202105146 Filed 31121; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20201131; Project Identifier MCAI202000613R; Amendment 3921445; AD 20210502
RIN 2120AA64

Airworthiness Directives; Airbus Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

j Material Incorporated by Reference
VerDate Sep<11>2014

v Eurocopter Flight Manual BK117 B1
Temporary Revision 6, dated September 22, 2006.
vi Eurocopter Flight Manual BK 117 B
2 Temporary Revision 1, dated September 22, 2006.
vii Eurocopter Flight Manual BK 117 C
1 Temporary Revision 2, dated September 22, 2006.
3 For Eurocopter service information identified in this AD, contact Airbus Helicopters, 2701 N Forum Drive, Grand Prairie, TX 75052; telephone 9726410000
or 8002320323; fax 9726413775; or at https www.airbus.com/helicopters/services/
technical-support.html.
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.
5 You may view this service information that is incorporated by reference at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email fedreg.legal@nara.gov, or go to: https
www.archives.gov/federal-register/cfr/ibrlocations.html.

The FAA is adopting a new airworthiness directive AD for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, and AS350D
helicopters; Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters; and Model EC130B4 and EC130T2 helicopters. This AD was prompted by a report of failed main rotor hub-to-mast attachment screws. This AD requires determining whether the helicopter has been operated in a severe environment since the last inspection of the main rotor hub-to-mast attachment screws, an
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inspection of the main rotor hub-to-mast attachment screws if the helicopter has been operated in a severe environment, and replacement of the main rotor hubto-mast attachment screws if necessary, as specified in a European Aviation Safety Agency now 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 is effective April 16, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of April 16, 2021.
ADDRESSES: For material incorporated by reference IBR in this AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49
221 8999 000; email: ADs@
easa.europa.eu; internet:
www.easa.europa.eu. You may find this 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 8172225110. It is also available in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20201131.
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. FAA2020
1131; 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, M
30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Hal Jensen, Aerospace Engineer, Operational Safety Branch, FAA, 470 LEnfant Plaza SW, Washington, DC 20024; phone:
2022679167; email: hal.jensen@
faa.gov.
SUPPLEMENTARY INFORMATION:
Discussion The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20170032, dated February 17, 2017;
corrected February 20, 2017 EASA AD
20170032 also referred to as the
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