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Federal Register / Vol. 86, No. 47 / Friday, March 12, 2021 / Rules and Regulations
13985

k Material Incorporated by Reference 1 The Director of the Federal Register approved the incorporation by reference IBR of the service information listed in this paragraph under 5 U.S.C. 552a and 1 CFR
part 51.
2 You must use this service information as applicable to do the actions required by this AD, unless this AD specifies otherwise.
i European Aviation Safety Agency EASA AD 20170032, dated February 17, 2017; corrected February 20, 2017.
ii Reserved 3 For EASA AD 20170032, contact the EASA, Konrad-Adenauer-Ufer 3, 50668
Cologne, Germany; phone: +49 221 8999 000;
email: ADs@easa.europa.eu; internet:
www.easa.europa.eu. You may find this EASA AD on the EASA website at https
ad.easa.europa.eu.
4 You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 8172225110. This material may be found in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20201131.
5 You may view this material that is incorporated by reference at the National Archives and Records Administration NARA. For information on the availability of this material at NARA, email fedreg.legal@
nara.gov, or go to https www.archives.gov/
federal-register/cfr/ibr-locations.html.

particle detector assembly with an improved, elongated MGB particle detector assembly, as specified in a European Union Aviation Safety Agency EASA AD, which is incorporated by reference. The FAA is issuing this AD
to address the unsafe condition on these products.
DATES: This AD is effective April 16, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of April 16, 2021.
ADDRESSES: For material incorporated by reference IBR in this AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49
221 8999 000; email: ADs@
easa.europa.eu; internet:
www.easa.europa.eu. You may find this material on the EASA website at https
ad.easa.europa.eu. You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call 8172225110. It is also available in the AD docket on the internet at https www.regulations.gov by searching for and locating Docket No.
FAA20201107.

unsafe condition for all Airbus Helicopters Model SA330J 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 SA330J helicopters. The NPRM
published in the Federal Register on December 4, 2020 85 FR 78277. The NPRM was prompted by a report of failure of a second stage planet gear of the MGB on a Model EC225 helicopter.
Following a review of design similarities, it was determined that such an event might also occur on Model SA330J helicopters. The NPRM
proposed to require replacement of the MGB particle detector assembly with an improved, elongated MGB particle detector assembly, as specified in an EASA AD.
The FAA is issuing this AD to address failure of a second stage planet gear of the MGB, which could lead to loss of control of the helicopter. See the MCAI
for additional background information.

Issued on February 17, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.

Examining the AD Docket
Conclusion
You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2020
1107; 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.
FOR FURTHER INFORMATION CONTACT:
Mahmood G. Shah, Aviation Safety Engineer, Fort Worth ACO Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; phone: 817222
5538; email: mahmood.g.shah@faa.gov.
SUPPLEMENTARY INFORMATION:

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 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.

FR Doc. 202105151 Filed 31121; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20201107; Project Identifier 2019SW049AD; Amendment 3921444; AD 20210501
RIN 2120AA64

Airworthiness Directives; Airbus Helicopters Federal Aviation Administration FAA, DOT.
ACTION: Final rule.

Discussion
The FAA is adopting a new airworthiness directive AD for all Airbus Helicopters Model SA330J
helicopters. This AD was prompted by report of failure of a second stage planet gear of the main gear box MGB. This AD requires replacement of the MGB

The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20190108, dated May 17, 2019 EASA
AD 20190108 also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI, to correct an
AGENCY:

SUMMARY:

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Comments 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.

Related Service Information Under 1
CFR Part 51
EASA AD 20190108 describes procedures for replacement of the MGB
particle detector assembly with an improved, elongated MGB particle detector assembly. 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 15 helicopters of U.S. registry.
The FAA estimates the following costs to comply with this AD:

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