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Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations 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, 2 Will not affect intrastate aviation in Alaska, and 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.
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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Amended
2. The FAA amends 39.13 by adding the following new airworthiness directive:

20210101 MHI RJ Aviation ULC Type Certificate Previously Held by Bombardier, Inc.: Amendment 39
21377; Docket No. FAA20200691;
Product Identifier 2020NM064AD.
a Effective Date This airworthiness directive AD is effective March 30, 2021.
b Affected ADs None.
c Applicability This AD applies to MHI RJ Aviation ULC
type certificate previously held by Bombardier, Inc. Model CL6002B19
Regional Jet Series 100 & 440 airplanes, certificated in any category, serial numbers 7003 through 8999 inclusive.
d Subject Air Transport Association ATA of America Code 32, Landing gear.

Adoption of the Amendment
VerDate Sep<11>2014

39.13

e Reason This AD was prompted by evidence that a revised structural life limit of some components of the nose landing gear NLG
and/or main landing gear MLG was not implemented during repair. The FAA is issuing this AD to address structural life limits that are lower than the life limits published in the Maintenance Requirements Manual MRM, Part 2. This condition, if not
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corrected, could lead to the collapse of the affected NLG and/or MLG, possibly resulting in airplane damage and injury to the occupants.
f Compliance Comply with this AD within the compliance times specified, unless already done.
g Verification of Airplane or Technical Records Within 6 months from the effective date of this AD: Verify the airplane or technical records to determine if an NLG or MLG
component listed in Table 1 or Table 2 of Bombardier Service Bulletin 601R32112, dated November 11, 2019, is installed on the airplane. If this verification determines that an affected component listed in Table 1 or Table 2 of Bombardier Service Bulletin 601R32112, dated November 11, 2019, is installed on the airplane, perform the actions specified in paragraph h or i of this AD, as applicable.
h Incorporation of the Structural Deviation Inspection Requirements SDIR Life Limit Into the Existing SDIR Airplane Document If the total flight cycles of the component is less than the revised SDIR life limit identified in figure 1 to paragraph h of this AD minus 2,000 flight cycles: Within 12
months after completing the actions specified in paragraph g of this AD, incorporate the applicable revised life limit of the affected component into the existing SDIR airplane document as specified in figure 1 to paragraph h of this AD.
BILLING CODE 491013P

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