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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. FAA2021
0510.
Related Service Information Under 1
CFR Part 51
The FAA reviewed LET Aircraft Industries Mandatory Bulletin SB No.
L420/021a, Revision 1, dated October 29, 2019, as applicable to Model L420
airplanes; and LET Aircraft Industries Mandatory Bulletin SB No. L410UVPE/
144a, Revision 1, dated October 29, 2019, as applicable to Models L 410
UVPE20 and L 410 UVPE20 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.
FAAs Determination
khammond on DSKJM1Z7X2PROD with RULES

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.

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Differences Between This AD and the MCAI
The MCAI applies to Models L410
UVPTurbolet, L410 UVPE, L 410
UVPE9, L 410 UVPLW, and L 410
UVPELW. 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 553b3B 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 553d 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.
553b3B. In addition, the FAA finds that good cause exists pursuant to 5
U.S.C. 553d 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 FAAs authority to issue
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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 Agencys 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 39AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:

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

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