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Federal Register / Vol. 86, No. 171 / Wednesday, September 8, 2021 / Rules and Regulations
2 Where EASA AD 20170037 refers to flight hours FH, this AD requires using hours time-in-service TIS.
3 Where paragraph 1 of EASA AD 2017
0037 requires determining the FH total hours TIS accumulated by the affected rotor mast nut since first installation on a helicopter, this AD requires removing the rotor mast nut from service before further flight if the total hours TIS cannot be determined.
4 Where the service information referenced in Note 3 of EASA AD 20170037
specifies to use a vibrograph to mark the new part number, this AD requires using a vibro etch.
5 Where paragraph 4 of EASA AD 2017
0037 requires replacing each affected rotor mast nut with a not affected rotor mast nut before exceeding 3,708 FH total hours TIS
since first installation on a helicopter, this AD requires removing each affected rotor mast nut from service before accumulating 3,708 total hours TIS.
6 Where paragraph 6 of EASA AD 2017
0037 requires replacing each part as identified in Table 2 of EASA AD 20170037
before exceeding the FH total hours TIS
limit, this AD requires removing each part from service before exceeding the total hours TIS limit.
7 Paragraph 7 of EASA AD 20170037
does not apply to this AD.
8 The Remarks section of EASA AD
20170037 does not apply to this AD.

i EASA AD 20170037, dated February 22, 2017.
ii Reserved 3 For EASA AD 20170037, contact EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; telephone +49 221 8999
000; email ADs@easa.europa.eu; internet www.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 817 2225110.
This material may be found in the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA20210450.
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: fr.inspection@nara.gov, or go to:
https www.archives.gov/federal-register/cfr/
ibr-locations.html.

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, or lacking a principal inspector, the manager of the local flight standards district office/
certificate holding district office.

DEPARTMENT OF TRANSPORTATION

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j Related Information For more information about this AD, contact Rao Edupuganti, Aerospace Engineer, Dynamic Systems Section, Technical Innovation Policy Branch, Policy &
Innovation Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone 817 2225110; email rao.edupuganti@
faa.gov.
k 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.

VerDate Sep<11>2014

16:25 Sep 07, 2021

Jkt 253001

Issued on July 30, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202119253 Filed 9721; 8:45 am BILLING CODE 491013P

Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210449; Project Identifier 2018SW001AD; Amendment 3921679; AD 20211616
RIN 2120AA64

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

The FAA is adopting a new airworthiness directive AD for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, and AS350D helicopters; and Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP
helicopters. This AD was prompted by reports that the lanyards bead chain tethers, which hold the quick release pins to the forward bracket assembly of certain litter kits, can loop around the directional control pedal stubs, limiting the movement of the pedals. This AD
requires modification of the lanyard attachment location for certain litter kit installations. The FAA is issuing this AD to address the unsafe condition on these products.

SUMMARY:

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This AD is effective October 13, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain document listed in this AD
as of October 13, 2021.
ADDRESSES: For service information identified in this final rule, contact Airbus Helicopters, 2701 North Forum Drive, Grand Prairie, TX 75052;
telephone 972 6410000 or 800 232
0323; fax 972 6413775; or at https
www.airbus.com/helicopters/services/
technical-support.html. 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. It is also available at https www.regulations.gov by searching for and locating Docket No.
FAA20210449.
DATES:

Examining the AD Docket You may examine the AD docket at https www.regulations.gov by searching for and locating Docket No.
FAA20210449; 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, the Transport Canada AD, any comments received, and other information. The street 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:
Andrea Jimenez, Aerospace Engineer, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 1600
Stewart Ave., Mail Stop: Room 410, Westbury, NY 11590; telephone 516
2287330; email andrea.jimenez@
faa.gov.
SUPPLEMENTARY INFORMATION:
Background The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, and AS350D
helicopters; and Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. The NPRM
published in the Federal Register on June 3, 2021 86 FR 29705. In the NPRM, the FAA proposed to require modification of the lanyard attachment location for certain litter kit installations. The NPRM was prompted
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