Voglio sapere a riguardo di…

13806

Federal Register / Vol. 86, No. 46 / Thursday, March 11, 2021 / Rules and Regulations
and locating Docket No. FAA2020
0974; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays.
The AD docket contains this final rule, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M
30, West Building Ground Floor, Room W12140, 1200 New Jersey Avenue SE, Washington, DC 20590.
Hal Jensen, Aerospace Engineer, Operational Safety Branch, FAA, 470 LEnfant Plaza SW, Washington DC 20024; telephone 2022679167; email hal.jensen@
faa.gov.

FOR FURTHER INFORMATION CONTACT:

SUPPLEMENTARY INFORMATION:

Discussion The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20200043, dated March 2, 2020 EASA
AD 20200043 also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI, to correct an unsafe condition for all Airbus Helicopters Model EC 155 B and EC 155
B1 helicopters.

The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 by adding an AD that would apply to all Airbus Helicopters Model EC 155B and EC155B1 helicopters. The NPRM published in the Federal Register on November 2, 2020 85 FR
69267. The NPRM was prompted by a report that non-destructive tests of the MGB housing may have been evaluated incorrectly during production. The NPRM proposed to require replacing affected MGBs with serviceable MGBs, as specified in an EASA AD.
The FAA is issuing this AD to address failure of the affected MGB housing, possibly resulting in reduced control of the helicopter. See the MCAI for additional background information.

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.

Comments
Differences Between This AD and the MCAI

The FAA gave the public the opportunity to participate in developing this final rule. The FAA received no comments on the NPRM or on the determination of the cost to the public.

EASA AD 20200043 specifies to do the replacement within 10 flight hours or 75 days, whichever occurs first. The compliance time for this AD is within 10 hours time-in-service.

Conclusion
Costs of Compliance
The FAA reviewed the relevant data and determined that air safety and the public interest require adopting this final rule as proposed, except for minor
The FAA estimates that this AD
affects 18 helicopters of U.S. registry.
The FAA estimates the following costs to comply with this AD:

Related Service Information Under 1
CFR Part 51
EASA AD 20200043 describes procedures for replacing affected MGBs with serviceable MGBs.
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.

khammond on DSKJM1Z7X2PROD with RULES

ESTIMATED COSTS FOR REQUIRED ACTIONS
Labor cost
Parts cost
Cost per product
Cost on U.S.
operators
40 work-hours $85 per hour = $3,400

$141,137

$144,537

$2,601,666

Authority for This Rulemaking
Regulatory Findings
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.

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.

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

VerDate Sep<11>2014

16:13 Mar 10, 2021

Jkt 253001

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

PO 00000

Frm 00002

Fmt 4700

Sfmt 4700

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:

20210209 Airbus Helicopters:
Amendment 3921392; Docket No.
FAA20200974; Project Identifier MCAI202000273R.
a Effective Date This airworthiness directive AD is effective April 15, 2021.
b Affected ADs None.

E:FRFM11MRR1.SGM

11MRR1