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Federal Register / Vol. 86, No. 35 / Wednesday, February 24, 2021 / Rules and Regulations 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/ibrlocations.html.
Issued on January 28, 2021.
Gaetano A. Sciortino, Deputy Director for Strategic Initiatives, Compliance & Airworthiness Division, Aircraft Certification Service.
FR Doc. 202103600 Filed 22321; 8:45 am BILLING CODE 491013P

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration 14 CFR Part 39
Docket No. FAA20200977; Project Identifier MCAI202001106T; Amendment 3921415; AD 20210312
RIN 2120AA64

Airworthiness Directives; Dassault Aviation Airplanes Federal Aviation Administration FAA, Department of Transportation DOT.
ACTION: Final rule.
AGENCY:

The FAA is superseding Airworthiness Directive AD 201903
27, which applied to all Dassault Aviation Model Falcon 10 airplanes. AD
20190327 required repetitive detailed inspections of certain wing anti-ice outboard flexible hoses, and replacement of certain wing anti-ice outboard flexible hoses. This AD
continues to require the actions in AD
20190327, and also adds a new life limit for the improved wing anti-ice flexible hose; as specified in a European Union Aviation Safety Agency EASA
AD, which is incorporated by reference.
This AD was prompted by a report indicating that certain wing anti-ice outboard flexible hoses were found damaged, likely resulting from the installation process, and the development of an improved wing antiice flexible hose. The FAA is issuing this AD to address the unsafe condition on these products.
DATES: This AD is effective March 31, 2021.
The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD
as of March 31, 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:

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SUMMARY:

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www.easa.europa.eu. You may find this IBR material on the EASA website at https ad.easa.europa.eu. You may view this IBR material at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 2062313195.
It is also available in the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2020
0977.

AD. The NPRM also proposed to require adding a new life limit for the improved wing anti-ice flexible hose, as specified in EASA AD 20200127.
The FAA is issuing this AD to address damaged wing anti-ice outboard flexible hoses, which could lead to a loss of performance of the wing anti-ice protection system that is not annunciated to the pilot, and could result in reduced control of the airplane.
See the MCAI for additional background information.

Examining the AD Docket
Comments
You may examine the AD docket on the internet at https
www.regulations.gov by searching for and locating Docket No. FAA2020
0977; 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: Tom Rodriguez, Aerospace Engineer, Large Aircraft Section, International Validation Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
phone and fax: 2062313226; email:
tom.rodriguez@faa.gov.
SUPPLEMENTARY INFORMATION:

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.

Discussion
EASA AD 20200127 describes procedures for repetitive detailed inspections of certain wing anti-ice outboard flexible hoses, replacement of certain wing anti-ice outboard flexible hoses, a new life limit for certain wing anti-ice outboard flexible hoses, and optional terminating actions for the repetitive inspections replacement of all damaged affected wing anti-ice outboard flexible hoses or accomplishing and passing an inspection on an affected wing anti-ice outboard flexible hose after it has accumulated 100 flight cycles since installation on an airplane. 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.

The EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD
20200127, dated June 4, 2020 EASA
AD 20200127 also referred to as the Mandatory Continuing Airworthiness Information, or the MCAI, to correct an unsafe condition for all Dassault Aviation Model Falcon 10 airplanes.
The FAA issued a notice of proposed rulemaking NPRM to amend 14 CFR
part 39 to supersede AD 20190327, Amendment 3919579 84 FR 7801, March 5, 2019 AD 20190327. AD
20190327 applied to all Dassault Aviation Model Falcon 10 airplanes.
The NPRM published in the Federal Register on November 2, 2020 85 FR
69269. The NPRM was prompted by a report indicating that certain wing antiice outboard flexible hoses were found damaged, likely resulting from the installation process, and the development of an improved wing antiice flexible hose. The NPRM proposed to continue to require the actions in AD
20190327, as specified in an EASA

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Conclusion 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.
Related Service Information Under 1
CFR Part 51

Costs of Compliance The FAA estimates that this AD
affects 54 airplanes of U.S. registry. The FAA estimates the following costs to comply with this AD:

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