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Federal Register / Vol. 86, No. 148 / Thursday, August 5, 2021 / Rules and Regulations comment. Air Line Pilots Association, International ALPA expressed support for the NPRM.
Request To Clarify Software Installation Requirements Delta Air Lines Delta requested that paragraphs h3 and 4 be added to the proposed AD to clarify that it is acceptable to use a different method of upgrading the REU and PFCC with the specified software, using Airbus Canada Service Bulletin SB BD500270013, Issue 001, dated July 17, 2020, only as a reference. Delta explained that it has a different policy for installing PFCC
software that requires the use of a Portable Maintenance Access Terminal PMAT, model PMAT2000, instead of a USB device.
The FAA partially agrees with the proposed changes. The FAA agrees to clarify that the PMAT method is permitted, but the FAA will not require the use of a specific model of PMAT.
Also, using the service information as a
reference must be specified in a note rather than in the paragraph itself.
Therefore, a single paragraph h3 has been added to this AD to provide this clarification, and a note has been added regarding the use of Airbus Canada Service Bulletin SB BD500270013, Issue 001, dated July 17, 2020, as a reference.
Conclusion The FAA reviewed the relevant data, considered the comments received, and determined that air safety and the public interest require adopting this final rule with the changes 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
TCCA AD CF202036 describes procedures for installing updated PFCC
and REU software; this installation includes prerequisites installing certain database versions and software that must be met prior to the installation.
This material 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 38 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
Up to 18 work-hours $85 per hour = Up to $1,530

Up to $21,100

Up to $22,630

Cost on U.S.
operators Up to $859,940.

Cost if operators elect to have manufacturer load software in REUs.

According to the manufacturer, some or all of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected operators. The FAA does not control warranty coverage for affected operators.
As a result, the FAA has included all known costs in the cost estimate.

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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.
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.

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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.

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:

20211502 Airbus Canada Limited Partnership Type Certificate Previously Held by C Series Aircraft Limited Partnership CSALP; Bombardier, Inc.:
Amendment 3921649; Docket No.
FAA20210019; Project Identifier MCAI202001388T.
a Effective Date This airworthiness directive AD is effective September 9, 2021.

List of Subjects in 14 CFR Part 39

b Affected ADs
Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety.

c Applicability
Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

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None.
This AD applies to Airbus Canada Limited Partnership Model BD5001A10 and BD
5001A11 airplanes, certificated in any category, as identified in Transport Canada Civil Aviation TCCA AD CF202036, dated October 8, 2020 TCCA AD CF2020
36.

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