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Federal Register / Vol. 86, No. 210 / Wednesday, November 3, 2021 / Rules and Regulations 16, 2021. Bombardier, Inc., commented that the revised service information provides a clarification specifically for a German registered airplane having a serial number with a specific configuration from a previous repair; no other changes were made between revision levels. Bombardier, Inc., requested that, if Bombardier Service Bulletin 70071005, Revision 01, dated April 16, 2021, is referenced, credit be provided for operators that have previously completed the applicable actions using Bombardier Service Bulletin 70071005, dated December 14, 2020.
The FAA agrees to update this final rule to reference Bombardier Service Bulletin 70071005, Revision 01, dated April 16, 2021, for the reasons provided above; the technical content and the intent of the service information remains unchanged. The FAA has also added paragraph i of this AD to provide credit for Bombardier Service Bulletin 70071005, dated December 14, 2020, for previous actions that were performed before the effective date of this AD. In addition, subsequent paragraphs have been re-identified accordingly.

Conclusion The FAA reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting this final rule with the change described previously and minor editorial changes.
The FAA has determined that these minor changes:
Are consistent with the intent that was proposed in the NPRM for addressing the unsafe condition; and Do not add any additional burden upon the public than was already proposed in the NPRM.
The FAA also determined that these changes will not increase the economic burden on any operator or increase the scope of this final rule.
Related Service Information Under 1
CFR Part 51
Bombardier, Inc., has issued the following service information.
Bombardier Service Bulletin 700
1A1171005, dated December 14, 2020.
Bombardier Service Bulletin 700
71005, Revision 01, dated April 16, 2021.

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Bombardier Service Bulletin 700
715005, dated December 14, 2020.
Bombardier Service Bulletin 700
715501, dated December 14, 2020.
Bombardier Service Bulletin 700
716005, dated December 14, 2020.
Bombardier Service Bulletin 700
716501, dated December 14, 2020.
This service information describes procedures for verifying the proper installation of the sliding bushings by doing an inspection gap check, including a gap outside acceptable limits, a missing or damaged nut or bolt at the upper side of front mount beam, and a bolt that turns freely with finger pressure. These documents are distinct since they apply to different airplane serial numbers. 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 section.
Costs of Compliance The FAA estimates that this AD
affects 376 airplanes of U.S. registry.
The FAA estimates the following costs to comply with this AD:

ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Cost on U.S.
operators
11 work-hours $85 per hour = $935

$0

$935

$351,560

The FAA has received no definitive data on which to base the cost estimates for the repairs specified in this AD.
The FAA has included all known costs in its cost estimate. According to the manufacturer, however, some or all of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators.

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Authority for This Rulemaking Title 49 of the United States Code specifies the FAAs 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 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.

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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 Findings 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, 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.

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List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.
Adoption of 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:

20212104 Bombardier, Inc.: Amendment 3921764; Docket No. FAA20210560;
Project Identifier MCAI202100192T.
a Effective Date This airworthiness directive AD is effective December 8, 2021.

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