Voglio sapere a riguardo di…

10748

Federal Register / Vol. 86, No. 34 / Tuesday, February 23, 2021 / Rules and Regulations
Request To Update Bombardier Email Address Bombardier requested that the FAA
revise the NPRM to update the email address for obtaining the specified service information from thd.crj@
aero.bombardier.com to ac.yul@
aero.bombardier.com.
The FAA agrees with the request and has revised this final rule accordingly.
Clarifications of Compliance Times The FAA has revised paragraph g of this AD to clarify when replacement is required. This clarification explains that replacement is required if, during the inspection required by paragraph g of this AD, any last replacement date or manufacturing date is found to be 4
years or older.
The FAA has also revised paragraph h2 of this AD to clarify that the compliance time of within 48 months is related to the applicable date specified in paragraph h2i or ii of this AD.
The proposed AD inadvertently stated that the compliance time was within 48 months after the applicable compliance time specified in paragraph h2i or ii of this AD, but paragraphs h2i and ii of this AD
specify dates, not compliance times.

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 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 this change 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 has issued Service Bulletin 70033024, dated May 13, 2019. This service information describes procedures for an inspection to determine the last battery replacement date of the ELB, and replacement if necessary.
Bombardier also issued the following service information.

Global Express BD700
Supplemental Time Limits/Maintenance Checks STLMC Temporary Revision TR 0519091701, dated September 17, 2019.
Global Express BD700 STLMC TR
0519091704, dated September 17, 2019.
Global Express XRS BD700
STLMC TR 0519091705, dated September 17, 2019.
These documents describe an amendment to the aircraft maintenance schedule to include STLMC Chapter 5
task number 335154603, Restoration of the Emergency Lighting Batteries XL245B Emergency Battery System, and 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 69 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
3 work-hours $85 per hour = $255

$11,308

$11,563

$797,847

The FAA has determined that revising the existing maintenance or inspection program takes an average of 90 workhours per operator, although the FAA
recognizes that this number may vary from operator to operator. Since operators incorporate maintenance or inspection program changes for their affected fleets, the FAA has determined that a per-operator estimate is more accurate than a per-airplane estimate. Therefore, the FAA estimates the total cost per operator to be $7,650
90 work-hours $85 per work-hour.
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
VerDate Sep<11>2014

21:28 Feb 22, 2021

Jkt 253001

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.

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.

Regulatory Findings
Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows:

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
PO 00000

Frm 00046

Fmt 4700

Sfmt 4700

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

E:FRFM23FER1.SGM

23FER1