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Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 39.13

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

20211402 Aircraft Industries a.s.:
Amendment 3921629; Docket No.
FAA20210510; Project Identifier 2019CE058AD.
a Effective Date This airworthiness directive AD becomes effective August 2, 2021.
b Affected ADs None.
c Applicability This AD applies to Aircraft Industries a.s.
Models L420, L 410 UVPE20, and L 410
UVPE20 CARGO airplanes, all serial numbers, certificated in any category.
d Subject Joint Aircraft System Component JASC
Code 3250, Landing Gear Steering System.
e Unsafe Condition This AD was prompted by mandatory continuing airworthiness information MCAI
originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI
identifies the unsafe condition as cracking of the retaining bolt on the nose landing gear NLG control. The FAA is issuing this AD
to prevent loss of the NLG vertical pin, which, if not addressed, could result in reduced airplane control during taxing, takeoff, and landing.
f Compliance Comply with this AD within the compliance times specified, unless already done.

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g Inspection and Replacement 1 Within 30 days after the effective date of this AD, inspect the NLG to determine if vertical pin part number P/N L3 223 016 with retaining bolt is installed on the NLG steering lever assembly.
If vertical pin P/N L3 223 016 is installed, before further flight, replace the vertical pin with vertical pin P/N L3 223 316 by following sections B. and C. of the Instruction for Implementation in LET
Aircraft Industries Mandatory Bulletin SB
No. L420/021a, Revision 1, dated October 29, 2019; or LET Aircraft Industries Mandatory Bulletin SB No. L410UVPE/
144a, Revision 1, dated October 29, 2019, as applicable to your airplane model.
2 As of the effective date of this AD, do not install a vertical pin P/N L3 223 016 in the NLG steering lever assembly on any airplane.
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
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appropriate. If sending information directly to the manager of the International Validation Branch, send it to the attention of the person identified in Related Information, paragraph i1 of this AD or email: 9-AVS-AIR-730AMOC@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

i Related Information
Airworthiness Directives; Airbus Helicopters
1 For more information about this AD, contact Doug Rudolph, Aviation Safety Engineer, General Aviation & Rotorcraft Section, International Validation Branch, FAA, 901 Locust, Room 301, Kansas City, MO 64106; phone: 816 3294059; fax: 816
3294090; email: doug.rudolph@faa.gov.
2 Refer to European Union Aviation Safety Agency EASA AD 20200308, dated December 18, 2019, for more information.
You may examine the EASA AD in the AD
docket at https www.regulations.gov by searching for and locating it in Docket No.
FAA20210510.
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 LET Aircraft Industries Mandatory Bulletin SB No. L420/021a, Revision 1, dated October 29, 2019.
ii LET Aircraft Industries Mandatory Bulletin SB No. L410UVPE/144a, Revision 1, dated October 29, 2019.
3 For service information identified in this AD, contact Aircraft Industries, a.s., 686
04 Kunovice, Czech Republic; phone: +420
572 817 664; fax: +420 572 816 112; email:
pps@let.cz; website: http www.let.cz/en/
bulletin.
4 You may view this referenced service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call 816 3294148. It is also available at https
www.regulations.gov by searching for locating Docket No. FAA20210510.
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 June 21, 2021.
Lance T. Gant, Director, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202113637 Filed 7921; 8:45 am BILLING CODE 491013P

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Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20210297; Project Identifier 2019SW062AD; Amendment 3921614; AD 20211309
RIN 2120AA64

Federal Aviation Administration FAA, DOT.
ACTION: Final rule.
AGENCY:

The FAA is adopting a new airworthiness directive AD for Airbus Helicopters Model SA330J helicopters, all serial numbers. This AD was prompted by reports of the failure of the lower bearing cage of the main rotor hub MRH flapping hinges and of the presence of metallic particles at the bottom of a drag hinge. This AD requires repetitive inspections of the MRH chip detectors, or for helicopters not equipped with chip detectors, repetitive inspections of the oil for contamination by metallic particles, and corrective actions if necessary, 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 is effective August 16, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of August 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.
FAA20210297.
SUMMARY:

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. FAA2021

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