AD 2021-03-18

[Federal Register Volume 86, Number 23 (Friday, February 5, 2021)]
[Rules and Regulations]
[Pages 8302-8305]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2021-02478]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2021-0024; Project Identifier MCAI-2021-00105-T; 
Amendment 39-21421; AD 2021-03-18]
RIN 2120-AA64


Airworthiness Directives; Dassault Aviation Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Dassault Aviation Model FALCON 7X airplanes. This AD was prompted by a 
report of deviations concerning the assembly and overhaul of certain 
crew oxygen mask stowage boxes, including incorrect application of a 
certain thread-locker on the fitting sensor screws. This AD requires an 
inspection of certain crew oxygen mask stowage boxes for discrepancies, 
and replacement if necessary, 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 becomes effective February 22, 2021.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of February 22, 
2021.
    The FAA must receive comments on this AD by March 22, 2021.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
    <bullet> Federal eRulemaking Portal: Go to <a href="https://www.regulations.gov">https://www.regulations.gov</a>. Follow the instructions for submitting comments.
    <bullet> Fax: 202-493-2251.
    <bullet> Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
    <bullet> Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For material incorporated by reference (IBR) in this AD, contact 
the EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 
221 8999 000; email <a href="/cdn-cgi/l/email-protection#e9a8ad9aa98c889a88c78c9c9b869988c78c9c"><span class="__cf_email__" data-cfemail="0140457241646072602f6474736e71602f6474">[email&#160;protected]</span></a>; internet www.easa.europa.eu. 
You may find this IBR material on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>. 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 <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for 
and locating Docket No. FAA-2021-0024.

Examining the AD Docket

    You may examine the AD docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2021-
0024; 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 AD, any comments received, and other information. The street 
address for Docket Operations is listed above.

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 <a href="/cdn-cgi/l/email-protection#3f4b5052114d505b4d56584a5a457f595e5e11585049"><span class="__cf_email__" data-cfemail="4f3b2022613d202b3d26283a2a350f292e2e61282039">[email&#160;protected]</span></a>.

SUPPLEMENTARY INFORMATION:

Background

    The EASA, which is the Technical Agent for the Member States of the 
European Union, has issued EASA Emergency AD 2021-0036-E, dated January 
25, 2021 (EASA Emergency AD 2021-0036-E) (also referred to as the 
Mandatory Continuing Airworthiness Information, or the MCAI), to 
correct an unsafe condition for all Dassault Aviation Model FALCON 7X 
airplanes.
    This AD was prompted by a report of deviations concerning the 
assembly and overhaul of certain crew oxygen mask stowage boxes, 
including incorrect application of Loctite 222 thread-locker on the 
fitting sensor screws. The FAA is issuing this AD to address such 
deviations, which could lead to blocked oxygen supply flow to flight 
deck crew oxygen masks. In combination with in-flight depressurization, 
flight deck smoke, or a smoke evacuation procedure, this lack of oxygen 
may lead to flightcrew hypoxia and loss of useful consciousness and 
consequent loss of control of the airplane. See the MCAI for additional 
background information.

Related Service Information Under 1 CFR Part 51

    EASA Emergency AD 2021-0036-E describes procedures for an 
inspection (test) of crew oxygen mask stowage boxes having part number 
CSD30-005-X-X (`X' can represent any alphanumeric value) for 
discrepancies (an inability to clearly hear oxygen flowing out of the 
mask during a functional test or see that the yellow blinker on the 
stowage box does not illuminate), and replacement.
    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.

FAA's Determination

    This product has been approved by the aviation authority of another 
country, and is approved for operation in the United States. Pursuant 
to the FAA's bilateral agreement with the State of Design Authority, 
the FAA has been notified of the unsafe condition described in the MCAI 
referenced

[[Page 8303]]

above. The FAA is issuing this AD because the FAA evaluated all 
pertinent information and determined the unsafe condition exists and is 
likely to exist or develop on other products of the same type design.

Requirements of This AD

    This AD requires accomplishing the actions specified in EASA 
Emergency AD 2021-0036-E described previously, as incorporated by 
reference, except for any differences identified as exceptions in the 
regulatory text of this AD.

Explanation of Required Compliance Information

    In the FAA's ongoing efforts to improve the efficiency of the AD 
process, the FAA initially worked with Airbus and EASA to develop a 
process to use certain EASA ADs as the primary source of information 
for compliance with requirements for corresponding FAA ADs. The FAA has 
since coordinated with other manufacturers and civil aviation 
authorities (CAAs) to use this process. As a result, EASA Emergency AD 
2021-0036-E is incorporated by reference in this final rule. This AD, 
therefore, requires compliance with EASA Emergency AD 2021-0036-E in 
its entirety, through that incorporation, except for any differences 
identified as exceptions in the regulatory text of this AD. Using 
common terms that are the same as the heading of a particular section 
in the EASA AD does not mean that operators need comply only with that 
section. For example, where the AD requirement refers to ``all required 
actions and compliance times,'' compliance with this AD requirement is 
not limited to the section titled ``Required Action(s) and Compliance 
Time(s)'' in the EASA AD. Service information specified in EASA 
Emergency AD 2021-0036-E that is required for compliance with EASA 
Emergency AD 2021-0036-E is available on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching for and locating Docket No. FAA-2021-
0024.

FAA's Justification and Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD without providing an opportunity for public comments prior to 
adoption. The FAA has found that the risk to the flying public 
justifies waiving notice and comment prior to adoption of this rule 
because deviations during the assembly and overhaul of certain crew 
oxygen mask stowage boxes could lead to blocked oxygen supply flow to 
flight deck crew oxygen masks, which, in combination with in-flight 
depressurization, flight deck smoke, or a smoke evacuation procedure, 
may lead to flightcrew hypoxia and loss of useful consciousness and 
consequent loss of control of the airplane. In addition, the compliance 
time for the required action is shorter than the time necessary for the 
public to comment and for publication of the final rule. Therefore, the 
FAA finds good cause that notice and opportunity for prior public 
comment are impracticable. In addition, for the reasons stated above, 
the FAA finds that good cause exists for making this amendment 
effective in less than 30 days.

Comments Invited

    The FAA invites you to send any written relevant data, views, or 
arguments about this AD. Send your comments to an address listed under 
ADDRESSES. Include ``Docket No. FAA-2021-0024; Project Identifier MCAI-
2021-01005-T'' at the beginning of your comments. The most helpful 
comments reference a specific portion of the final rule, explain the 
reason for any recommended change, and include supporting data. The FAA 
will consider all comments received by the closing date and may amend 
this final rule because of those comments.
    Except for Confidential Business Information (CBI) as described in 
the following paragraph, and other information as described in 14 CFR 
11.35, the FAA will post all comments received, without change, to 
<a href="https://www.regulations.gov">https://www.regulations.gov</a>, including any personal information you 
provide. The agency will also post a report summarizing each 
substantive verbal contact received about this final rule.

Confidential Business Information

    CBI is commercial or financial information that is both customarily 
and actually treated as private by its owner. Under the Freedom of 
Information Act (FOIA) (5 U.S.C. 552), CBI is exempt from public 
disclosure. If your comments responsive to this AD contain commercial 
or financial information that is customarily treated as private, that 
you actually treat as private, and that is relevant or responsive to 
this AD, it is important that you clearly designate the submitted 
comments as CBI. Please mark each page of your submission containing 
CBI as ``PROPIN.'' The FAA will treat such marked submissions as 
confidential under the FOIA, and they will not be placed in the public 
docket of this AD. Submissions containing CBI should be sent to 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 <a href="/cdn-cgi/l/email-protection#32465d5f1c405d56405b55475748725453531c555d44"><span class="__cf_email__" data-cfemail="88fce7e5a6fae7ecfae1effdedf2c8eee9e9a6efe7fe">[email&#160;protected]</span></a>. Any 
commentary that the FAA receives which is not specifically designated 
as CBI will be placed in the public docket for this rulemaking.

Regulatory Flexibility Act (RFA)

    The requirements of the RFA do not apply when an agency finds good 
cause pursuant to 5 U.S.C. 553 to adopt a rule without prior notice and 
comment. Because the FAA has determined that it has good cause to adopt 
this rule without notice and comment, RFA analysis is not required.

Costs of Compliance

    The FAA estimates that this AD affects 133 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
                          Labor cost                              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
1 work-hours x $85 per hour = $85............................              $0              $85          $11,305
----------------------------------------------------------------------------------------------------------------

    The FAA estimates the following costs to do any necessary on-
condition action that would be required based on the results of any 
required actions. The FAA has no way of determining the number of 
aircraft that might need this on-condition action:

[[Page 8304]]



                 Estimated Costs of On-Condition Actions
------------------------------------------------------------------------
          Labor cost              Parts cost        Cost per product
------------------------------------------------------------------------
Up to 3 work-hours x $85 per            $8,427  Up to $8,682.
 hour = Up to $255 (per mask
 stowage box).
------------------------------------------------------------------------

    According to the manufacturer, some or all of the costs of this AD 
may be covered under warranty, thereby reducing the cost impact on 
affected operators. The FAA does not control warranty coverage for 
affected operators. As a result, the FAA has included all known costs 
in the cost estimate.

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

    The FAA determined that 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, and
    (2) Will not affect intrastate aviation in Alaska.

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

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2021-03-18 Dassault Aviation: Amendment 39-21421; Docket No. FAA-
2021-0024; Project Identifier MCAI-2021-00105-T.

(a) Effective Date

    This airworthiness directive (AD) becomes effective February 22, 
2021.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all Dassault Aviation Model FALCON 7X 
airplanes, certificated in any category.
    Note 1 to paragraph (c): Model FALCON 7X airplanes include those 
that have embodied Dassault modification (mod) M1000 (commercially 
known as Falcon 8X) in production.

(d) Subject

    Air Transport Association (ATA) of America Code 35, Oxygen.

(e) Reason

    This AD was prompted by a report of deviations concerning the 
assembly and overhaul of certain crew oxygen mask stowage boxes, 
including incorrect application of Loctite 222 thread-locker on the 
fitting sensor screws. The FAA is issuing this AD to address such 
deviations, which could lead to blocked oxygen supply flow to flight 
deck crew oxygen masks, which, in combination with in-flight 
depressurization, flight deck smoke, or a smoke evacuation 
procedure, may lead to flightcrew hypoxia and loss of useful 
consciousness and consequent loss of control of the airplane.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Requirements

    Except as specified in paragraph (h) of this AD: Comply with all 
required actions and compliance times specified in, and in 
accordance with, European Union Aviation Safety Agency (EASA) 
Emergency AD 2021-0036-E, dated January 25, 2021 (EASA Emergency AD 
2021-0036-E).

(h) Exceptions to EASA Emergency AD 2021-0036-E

    (1) Where EASA Emergency AD 2021-0036-E refers to its effective 
date, this AD requires using the effective date of this AD.
    (2) Where paragraph (2) of EASA Emergency AD 2021-0036-E 
specifies actions if ``any discrepancy is detected,'' for this AD a 
``discrepancy'' is defined as an inability to clearly hear oxygen 
flowing out of the mask during a functional test or see that the 
yellow blinker on the stowage box does not illuminate.
    (3) Although the service information referenced in EASA 
Emergency AD 2021-0036-E specifies that certain actions may be 
accomplished by a pilot, this AD does not allow that provision.
    (4) The ``Remarks'' section of EASA Emergency AD 2021-0036-E 
does not apply to this AD.

(i) No Reporting Requirement

    Although the service information referenced in EASA Emergency AD 
2021-0036-E specifies to submit certain information to the 
manufacturer, this AD does not include that requirement.

(j) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Large Aircraft Section, International Validation Branch, FAA, has 
the authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, 
send your request to your principal inspector or responsible Flight 
Standards Office, as appropriate. If sending information directly to 
the Large Aircraft Section, International Validation Branch, send it 
to the attention of the person identified in paragraph (k) of this 
AD. Information may be emailed to: <a href="/cdn-cgi/l/email-protection#87beaac6d1d4aac6ced5aab0b4b7aac6cac8c4c7e1e6e6a9e0e8f1"><span class="__cf_email__" data-cfemail="ba8397fbece997fbf3e8978d898a97fbf7f5f9fadcdbdb94ddd5cc">[email&#160;protected]</span></a>. 
Before using any approved AMOC, notify your appropriate principal 
inspector, or lacking a principal inspector, the manager of the 
responsible Flight Standards Office.
    (2) Contacting the Manufacturer: For any requirement in this AD 
to obtain instructions from a manufacturer, the instructions must be 
accomplished using a method approved by the Manager, Large Aircraft 
Section, International Validation Branch, FAA; or EASA; or Dassault 
Aviation's EASA Design Organization Approval (DOA). If approved by 
the DOA, the approval must include the DOA-authorized signature.

(k) Related Information

    For more information about this AD, contact Tom Rodriguez, 
Aerospace Engineer, Large Aircraft Section, International Validation 
Branch, FAA, 2200 South 216th St., Des Moines, WA 98198; telephone 
and

[[Page 8305]]

fax 206-231-3226; email <a href="/cdn-cgi/l/email-protection#e0948f8dce928f8492898795859aa0868181ce878f96"><span class="__cf_email__" data-cfemail="f783989ad9859893859e9082928db7919696d9909881">[email&#160;protected]</span></a>.

(l) 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. 552(a) 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 Union Aviation Safety Agency (EASA) Emergency AD 
2021-0036-E, dated January 25, 2021.
    (ii) [Reserved]
    (3) For EASA Emergency AD 2021-0036-E, contact the EASA, Konrad-
Adenauer-Ufer 3, 50668 Cologne, Germany; telephone +49 221 8999 000; 
email <a href="/cdn-cgi/l/email-protection#0342477043666270622d6676716c73622d6676"><span class="__cf_email__" data-cfemail="95d4d1e6d5f0f4e6f4bbf0e0e7fae5f4bbf0e0">[email&#160;protected]</span></a>; Internet www.easa.europa.eu. You may find 
this EASA AD on the EASA website at <a href="https://ad.easa.europa.eu">https://ad.easa.europa.eu</a>.
    (4) You may view this 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. This material may be found in the AD 
docket on the internet at <a href="https://www.regulations.gov">https://www.regulations.gov</a> by searching 
for and locating Docket No. FAA-2021-0024.
    (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 
<a href="/cdn-cgi/l/email-protection#f2949796809795dc9e9795939eb29c938093dc959d84"><span class="__cf_email__" data-cfemail="80e6e5e4f2e5e7aeece5e7e1ecc0eee1f2e1aee7eff6">[email&#160;protected]</span></a>, or go to: <a href="https://www.archives.gov/federal-register/cfr/ibr-locations.html">https://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.

    Issued on February 1, 2021.
Lance T. Gant,
Director, Compliance & Airworthiness Division, Aircraft Certification 
Service.
[FR Doc. 2021-02478 Filed 2-3-21; 2:00 pm]
BILLING CODE 4910-13-P