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Federal Register / Vol. 86, No. 45 / Wednesday, March 10, 2021 / Rules and Regulations 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:

20210416 Amendment 3921438; Docket No. FAA20200791; Project Identifier AD202000676R.
a Effective Date This airworthiness directive AD is effective April 14, 2021.

c Applicability This AD applies to Sikorsky Aircraft Corporation Sikorsky Model S92A
helicopters, certificated in any category, with serial numbers S/Ns 920006 through 920334 inclusive.
d Subject Joint Aircraft System Component JASC
Code 3220, Nose/Tail Landing Gear; 3210, Main Landing Gear.
e Unsafe Condition This AD was prompted by the manufacturer determining that because of non-conforming threads, due to a quality escape, the life limit of the threaded hinge pin and main landing gear MLG and nose landing gear NLG actuator pins is reduced.
The FAA is issuing this AD to prevent failure of components on the MLG and NLG. The unsafe condition, if not addressed, could result in damage to the helicopter and reduced ability to control the helicopter during landing.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Required Actions Within 300 hours time in service after the effective date of this AD, visually inspect the components of the right MLG assembly, left
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h Installation Prohibition As of the effective date of this AD, do not install any threaded hinge pin, P/N 92250
12281101, or actuator pin, P/N 92240
12287101 or 9224012287103, with an S/
N listed in Table 1 or 2 in Section 3, the Accomplishment Instructions, in the ASB, on any helicopter.
i Alternative Methods of Compliance AMOCs
b Affected ADs None.

VerDate Sep<11>2014

MLG assembly, and NLG kit for threaded hinge pins, part number P/N 9225012281
101, and actuator pins, P/N 9224012287
101 and 9224012287103, with serial numbers S/Ns identified in Table 1 or 2
threaded hinge pins or in Table 1 actuator pins, in Section 3, the Accomplishment Instructions, in the Sikorsky Aircraft Corporation Alert Service Bulletin ASB 92
32008, Basic Issue, dated January 21, 2020
the ASB.
Note 1 to the introductory text of paragraph g: See Figures 1 and 2 in Section 3, the Accomplishment Instructions, in the ASB for guidance on performing the visual inspection.
1 If there is any threaded hinge pin, P/
N 9225012281101, with an S/N listed in Table 1 or 2 in the ASB, before further flight, remove the threaded hinge pin from service.
2 If there is any MLG or NLG actuator pin, P/N 9225012287101 or P/N 92250
12287103, with an S/N listed in Table 1 in the ASB, before further flight, remove the actuator pin from service.

1 The Manager, Boston ACO 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 certification office, send it to the attention of the person identified in paragraph j1 of this AD.
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.
For more information about this AD, contact Dorie Resnik, Aerospace Engineer, Boston ACO Branch, Compliance &
Airworthiness Division, FAA, 1200 District Avenue, Burlington, MA 01803; phone: 781
2387693; fax: 7812387199; email:
dorie.resnik@faa.gov. You may view the related 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.
k 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.

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2 You must use this service information as applicable to do the actions required by this AD, unless the AD specifies otherwise.
i Sikorsky Aircraft Corporation Alert Service Bulletin 9232008, Basic Issue, dated January 21, 2020.
ii Reserved 3 For Sikorsky service information identified in this AD, contact Sikorsky Aircraft Corporation, Commercial Systems and Services, 124 Quarry Road, Trumbull, CT
06611; phone: 2034164000; email:
product_safety.gr-sik@lmco.com. Operators may also log on to the Sikorsky 360 website at: https customerportal.sikorsky.com.
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/
ibr-locations.html.
Issued on February 9, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202104940 Filed 3921; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20200847; Product Identifier 2018SW087AD; Amendment 3921434; AD 20210413
RIN 2120AA64

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

j Related Information
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The FAA is adopting a new airworthiness directive AD for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, and AS350D helicopters;
Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP
helicopters; and Model EC130 B4 and EC130 T2 helicopters. This AD requires a one-time inspection to verify the presence and correct installation of the main rotor mast MRM upper bearing retaining rings, a repetitive inspection of the sealant bead on the MRM for damage, and corrective actions if necessary. This AD was prompted by a
SUMMARY:

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