DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2020-1111; Product Identifier MCAI-2020-01374-T;
Amendment 39-21442; AD 2021-04-20]
RIN 2120-AA64

Airworthiness Directives; Dassault Aviation Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA is superseding Airworthiness Directive (AD) 2018-24-
03, which applied to all Dassault Aviation Model Falcon 10 airplanes.
AD 2018-24-03 required revising the existing maintenance or inspection
program, as applicable, to incorporate new or more restrictive
maintenance requirements and airworthiness limitations. This AD
requires revising the existing maintenance or inspection program, as
applicable, to incorporate new or more restrictive airworthiness
limitations; 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 9, 2021.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of April 9,
2021.
The Director of the Federal Register approved the incorporation by
reference of a certain other publication listed in this AD as of
January 4, 2019 (83 FR 61523, November 30, 2018).

ADDRESSES: For EASA material incorporated by reference (IBR) in this
AD, contact the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany;
telephone +49 221 8999 000; email ADs@easa.europa.eu; internet
www.easa.europa.eu. You may find this IBR material on the EASA website
at https://ad.easa.europa.eu. For Dassault Aviation service information
identified in this final rule, contact Dassault Falcon Jet Corporation,
Teterboro Airport, P.O. Box 2000, South Hackensack, NJ 07606; telephone
201-440-6700; internet https://www.dassaultfalcon.com. 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 206-
231-3195. It is also available in the AD docket on the internet at
https://www.regulations.gov by searching for and locating Docket No.
FAA-2020-1111.

Examining the AD Docket

You may examine the AD docket on the internet at https://www.regulations.
gov by searching for and locating Docket No. FAA-2020-
1111; 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 W12-140, 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; telephone and fax 206-231-3226;
email tom.rodriguez@faa.gov.

SUPPLEMENTARY INFORMATION:

Background

The EASA, which is the Technical Agent for the Member States of the
European Union, has issued EASA AD 2020-0215, dated October 6, 2020
(EASA AD 2020-0215) (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 2018-24-03, Amendment 39-19507 (83 FR
61523, November 30, 2018) (AD 2018-24-03). AD 2018-24-03 applied to all
Dassault Aviation Model Falcon 10 airplanes. The NPRM published in the
Federal Register on December 7, 2020 (85 FR 78808). The NPRM was
prompted by a determination that new or more restrictive airworthiness
limitations are necessary. The NPRM proposed to require revising the
existing maintenance or inspection program, as
applicable, to incorporate new or more restrictive airworthiness
limitations, as specified in EASA AD 2020-0215.
The FAA is issuing this AD to address among other things, fatigue
cracking and damage in principal structural elements; such fatigue
cracking and damage could result in reduced structural integrity of the
airplane. See the MCAI for additional background information.

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.

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

EASA AD 2020-0215 describes new or more restrictive airworthiness
limitations for airplane structures and safe life limits.
This AD also requires Section 5-40-00, Airworthiness Limitations,
Revision 13, dated July 2017, of the Dassault Falcon 10 Maintenance
Manual, which the Director of the Federal Register approved for
incorporation by reference as of January 4, 2019 (83 FR 61523, November
30, 2018).
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 60 airplanes of U.S.
registry. The FAA estimates the following costs to comply with this AD:
The FAA estimates the total cost per operator for the retained
actions from AD 2018-24-03 to be $7,650 (90 work-hours x $85 per work-
hour).
The FAA has determined that revising the existing maintenance or
inspection program takes an average of 90 work-hours per operator,
although the agency recognizes that this number may vary from operator
to operator. Since operators incorporate maintenance or inspection
program changes for their affected fleet(s), the FAA has determined
that a per-operator estimate is more accurate than a per-airplane
estimate. The FAA estimates the total cost per operator for the new
proposed actions to be $7,650 (90 work-hours x $85 per work-hour).

Authority for This Rulemaking

Title 49 of the United States Code specifies the FAA's 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 Agency's 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.

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.

List of Subjects in 14 CFR Part 39

Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

1. The authority citation for part 39 continues to read as follows:

Authority: 49 U.S.C. 106(g), 40113, 44701.

Sec. 39.13 [Amended]

2. The FAA amends Sec. 39.13 by:

a. Removing Airworthiness Directive (AD) 2018-24-03, Amendment 39-19507
(83 FR 61523, November 30, 2018); and

b. Adding the following new AD: