This section of the FEDERAL REGISTER

contains regulatory documents having general

applicability and legal effect, most of which

are keyed to and codified in the Code of

Federal Regulations, which is published under

50 titles pursuant to 44 U.S.C. 1510.

The Code of Federal Regulations is sold by

the Superintendent of Documents.

Rules and Regulations Federal Register

36483 

Vol. 86, No. 130 

Monday, July 12, 2021 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0510; Project 

Identifier 2019–CE–058–AD; Amendment 

39–21629; AD 2021–14–02] 

RIN 2120–AA64 

Airworthiness Directives; Aircraft 

Industries a.s. Airplanes 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule; request for 

comments. 

SUMMARY: The FAA is adopting a new 

airworthiness directive (AD) for all 

Aircraft Industries a.s. Models L–420, L 

410 UVP–E20, and L 410 UVP–E20 

CARGO airplanes. This AD results from 

mandatory continuing airworthiness 

information (MCAI) issued by the 

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 address the 

unsafe condition on these products. 

DATES: This AD is effective August 2, 

2021. 

The Director of the Federal Register 

approved the incorporation by reference 

of certain publications listed in the AD 

as of August 2, 2021. 

The FAA must receive comments on 

this AD by August 26, 2021. 

ADDRESSES: You may send comments by 

any of the following methods: 

• Federal eRulemaking Portal: Go to 

https://www.regulations.gov. Follow the 

instructions for submitting comments. 

• Fax: (202) 493–2251. 

• Mail: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590. 

• Hand Delivery: U.S. Department of 

Transportation, Docket Operations, 

M–30, West Building Ground Floor, 

Room W12–140, 1200 New Jersey 

Avenue SE, Washington, DC 20590, 

between 9 a.m. and 5 p.m., Monday 

through Friday, except Federal holidays. 

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. You may 

view this 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) 329–4148. It is also 

available at https://www.regulations.gov 

by searching for locating Docket No. 

FAA–2021–0510. 

Examining the AD Docket 

You may examine the AD docket at 

https://www.regulations.gov by 

searching for and locating Docket No. 

FAA–2021–0510; 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 MCAI, any comments 

received, and other information. The 

street address for Docket Operations is 

listed above. 

FOR FURTHER INFORMATION CONTACT: 

Doug Rudolph, Aviation Safety 

Engineer, General Aviation & Rotorcraft 

Section, International Validation 

Branch, FAA, 901 Locust, Room 301, 

Kansas City, MO 64106; phone: (816) 

329–4059; fax: (816) 329–4090; email: 

doug.rudolph@faa.gov. 

SUPPLEMENTARY INFORMATION: 

Comments Invited 

The FAA invites you to send any 

written data, views, or arguments about 

this final rule. Send your comments to 

an address listed under ADDRESSES. 

Include ‘‘Docket No. FAA–2021–0510 

and Project Identifier 2019–CE–058– 

AD’’ at the beginning of your comments. 

The most helpful comments reference a 

specific portion of the final rule, explain 

the reason for any recommended 

change, and include supporting data. 

The FAA will consider all comments 

received by the closing date and may 

amend this final rule because of those 

comments. 

Except for Confidential Business 

Information (CBI) as described in the 

following paragraph, and other 

information as described in 14 CFR 

11.35, the FAA will post all comments 

received, without change, to https://

www.regulations.gov, including any 

personal information you provide. The 

agency will also post a report 

summarizing each substantive verbal 

contact received about this final rule. 

Confidential Business Information 

CBI is commercial or financial 

information that is both customarily and 

actually treated as private by its owner. 

Under the Freedom of Information Act 

(FOIA) (5 U.S.C. 552), CBI is exempt 

from public disclosure. If your 

comments responsive to this AD contain 

commercial or financial information 

that is customarily treated as private, 

that you actually treat as private, and 

that is relevant or responsive to this AD, 

it is important that you clearly designate 

the submitted comments as CBI. Please 

mark each page of your submission 

containing CBI as ‘‘PROPIN.’’ The FAA 

will treat such marked submissions as 

confidential under the FOIA, and they 

will not be placed in the public docket 

of this AD. Submissions containing CBI 

should be sent to Doug Rudolph, 

Aerospace Engineer, FAA, General 

Aviation & Rotorcraft Section, 

International Validation Branch, 901 

Locust, Room 301, Kansas City, MO 

64106. Any commentary that the FAA 

receives which is not specifically 

designated as CBI will be placed in the 

public docket for this rulemaking. 

Background 

The European Union Aviation Safety 

Agency (EASA), which is the Technical 

Agent for the Member States of the 

European Community, has issued EASA 

AD 2019–0308, dated December 18, 

2019 (referred to after this as ‘‘the 

MCAI’’), to address the unsafe condition 

on Aircraft Industries a.s. Models L–410 

UVP–Turbolet, L–410 UVP–E, L 410 

UVP–E9, L 410 UVP–LW, L 410 UVP– 

E–LW, L 410 UVP–E20, L 410 UVP–E20 

CARGO and L–420 airplanes. The MCAI 

states: 

Malfunction of the steering on the nose 

landing gear was reported by L–410 

operators. Investigation determined that the 

malfunction was due to loss of the vertical 

pin further to a cracking of the retaining bolt 

on the nose landing gear control. 


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36484 Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 

This condition, if not detected and 

corrected, could lead to reduced control of 

the aeroplane during taxiing, take-off and 

landing. 

To address this potential unsafe condition, 

Aircraft Industries developed an improved 

pin and issued the applicable SB [service 

bulletin] to provide inspection and 

modification instructions. 

For the reason described above, this 

[EASA] AD requires a one-time inspection of 

the the [sic] nose landing gear leg to 

determine if an affected part is installed, and 

replacement of affected parts with improved 

pins. 

You may examine the MCAI in the 

AD docket at https://

www.regulations.gov by searching for 

and locating Docket No. FAA–2021– 

0510. 

Related Service Information Under 1 

CFR Part 51 

The FAA reviewed LET Aircraft 

Industries Mandatory Bulletin SB No. 

L–420/021a, Revision 1, dated October 

29, 2019, as applicable to Model L–420 

airplanes; and LET Aircraft Industries 

Mandatory Bulletin SB No. L410UVP–E/ 

144a, Revision 1, dated October 29, 

2019, as applicable to Models L 410 

UVP–E20 and L 410 UVP–E20 CARGO 

airplanes. For the airplane models 

specified on each document, the service 

information contains procedures for 

inspecting the NLG steering lever 

assembly vertical pin and replacing it if 

part number (P/N) L3 223 016 with a 

retaining bolt is installed. This service 

information is reasonably available 

because the interested parties have 

access to it through their normal course 

of business or by the means identified 

in the ADDRESSES. 

FAA’s Determination 

This product has been approved by 

the aviation authority of another 

country, and is approved for operation 

in the United States. Pursuant to our 

bilateral agreement with this State of 

Design Authority, it has notified the 

FAA of the unsafe condition described 

in the MCAI and service information 

referenced above. The FAA is issuing 

this AD because it evaluated all 

information provided by the State of 

Design Authority and determined the 

unsafe condition described previously is 

likely to exist or develop on other 

products of the same type design. 

AD Requirements 

This AD requires accomplishing the 

actions specified in the service 

information already described. This AD 

also prohibits installing a vertical pin 

P/N L3 223 016 in the NLG steering 

lever assembly on any airplane. 

Differences Between This AD and the 

MCAI 

The MCAI applies to Models L–410 

UVP–Turbolet, L–410 UVP–E, L 410 

UVP–E9, L 410 UVP–LW, and L 410 

UVP–E–LW. This AD does not because 

those models do not have an FAA type 

certificate. 

Justification for Immediate Adoption 

and Determination of the Effective Date 

Section 553(b)(3)(B) of the 

Administrative Procedure Act (APA) (5 

U.S.C. 551 et seq.) authorizes agencies 

to dispense with notice and comment 

procedures for rules when the agency, 

for ‘‘good cause,’’ finds that those 

procedures are ‘‘impracticable, 

unnecessary, or contrary to the public 

interest.’’ Under this section, an agency, 

upon finding good cause, may issue a 

final rule without providing notice and 

seeking comment prior to issuance. 

Further, section 553(d) of the APA 

authorizes agencies to make rules 

effective in less than thirty days, upon 

a finding of good cause. 

The FAA has found that the risk to 

the flying public justifies waiving notice 

and comment prior to adoption of this 

rule because there are no airplanes 

currently on the U.S. registry and thus, 

it is unlikely that the FAA will receive 

any adverse comments or useful 

information about this AD from U.S. 

operators. Accordingly, notice and 

opportunity for prior public comment 

are unnecessary pursuant to 5 U.S.C. 

553(b)(3)(B). In addition, the FAA finds 

that good cause exists pursuant to 5 

U.S.C. 553(d) for making this 

amendment effective in less than 30 

days for the same reasons the FAA 

found good cause to forego notice and 

comment. 

Costs of Compliance 

There are currently no affected 

airplanes on the U.S. registry. In the 

event an affected product becomes a 

U.S.-registered product, the following is 

an estimate of the costs to comply with 

this AD. 

The FAA estimates that it would take 

.5 work-hour per airplane to comply 

with the inspection required by this AD. 

The average labor rate is $85 per workhour. Based on these figures, the FAA 

estimates the cost of this AD to be 

$42.50 per airplane. 

In addition, the FAA estimates that 

replacing the vertical pin, if necessary, 

would take 1 work-hour and require 

parts costing $2,000 for a cost of $2,085 

per airplane. 

Authority for This Rulemaking 

Title 49 of the United States Code 

specifies the FAA’s authority to issue 

rules on aviation safety. Subtitle I, 

section 106, describes the authority of 

the FAA Administrator. Subtitle VII: 

Aviation Programs, describes in more 

detail the scope of the Agency’s 

authority. 

The FAA is issuing this rulemaking 

under the authority described in 

Subtitle VII, Part A, Subpart III, Section 

44701: General requirements. Under 

that section, Congress charges the FAA 

with promoting safe flight of civil 

aircraft in air commerce by prescribing 

regulations for practices, methods, and 

procedures the Administrator finds 

necessary for safety in air commerce. 

This regulation is within the scope of 

that authority because it addresses an 

unsafe condition that is likely to exist or 

develop on products identified in this 

rulemaking action. 

Regulatory Flexibility Act 

The requirements of the Regulatory 

Flexibility Act (RFA) do not apply when 

an agency finds good cause pursuant to 

5 U.S.C. 553 to adopt a rule without 

prior notice and comment. Because FAA 

has determined that it has good cause to 

adopt this rule without notice and 

comment, RFA analysis is not required. 

Regulatory Findings 

The FAA determined that this AD 

will not have federalism implications 

under Executive Order 13132. This AD 

will not have a substantial direct effect 

on the States, on the relationship 

between the national government and 

the States, or on the distribution of 

power and responsibilities among the 

various levels of government. 

For the reasons discussed above, I 

certify that this AD: 

(1) Is not a ‘‘significant regulatory 

action’’ under Executive Order 12866, 

and 

(2) Will not affect intrastate aviation 

in Alaska. 

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 39—AIRWORTHINESS 

DIRECTIVES 

■ 1. The authority citation for part 39 

continues to read as follows: 

Authority: 49 U.S.C. 106(g), 40113, 44701. 


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Federal Register / Vol. 86, No. 130 / Monday, July 12, 2021 / Rules and Regulations 36485 

§ 39.13 [Amended] 

■ 2. The FAA amends § 39.13 by adding 

the following new airworthiness 

directive: 

2021–14–02 Aircraft Industries a.s.: 

Amendment 39–21629; Docket No. 

FAA–2021–0510; Project Identifier 

2019–CE–058–AD. 

(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 L–420, L 410 UVP–E20, and L 410 

UVP–E20 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. 

(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. L–420/021a, Revision 1, dated October 

29, 2019; or LET Aircraft Industries 

Mandatory Bulletin SB No. L410UVP–E/ 

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 

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 

(i)(1) of this AD or email: 9-AVS-AIR-730- 

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. 

(i) Related Information 

(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) 329–4059; fax: (816) 

329–4090; email: doug.rudolph@faa.gov. 

(2) Refer to European Union Aviation 

Safety Agency (EASA) AD 2020–0308, 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. 

FAA–2021–0510. 

(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. 552(a) 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. L–420/021a, Revision 1, 

dated October 29, 2019. 

(ii) LET Aircraft Industries Mandatory 

Bulletin SB No. L410UVP–E/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) 329–4148. It 

is also available at https://

www.regulations.gov by searching for 

locating Docket No. FAA–2021–0510. 

(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. 2021–13637 Filed 7–9–21; 8:45 am] 

BILLING CODE 4910–13–P 

DEPARTMENT OF TRANSPORTATION 

Federal Aviation Administration 

14 CFR Part 39 

[Docket No. FAA–2021–0297; Project 

Identifier 2019–SW–062–AD; Amendment 

39–21614; AD 2021–13–09] 

RIN 2120–AA64 

Airworthiness Directives; Airbus 

Helicopters 

AGENCY: Federal Aviation 

Administration (FAA), DOT. 

ACTION: Final rule. 

SUMMARY: 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 6N–321, 

Fort Worth, TX 76177. For information 

on the availability of this material at the 

FAA, call 817–222–5110. It is also 

available in the AD docket on the 

internet at https://www.regulations.gov 

by searching for and locating Docket No. 

FAA–2021–0297. 

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. FAA–2021– 


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