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PROPOSED AD DASSAULT AVIATION: Docket No. FAA-2018-0117; Product Identifier 2017-NM-104-AD.
(a) COMMENTS DUE DATE

    We must receive comments by April 16, 2018.

(b) AFFECTED ADS

    This AD replaces AD 2017-01-07 Amendment 39-18774 (82 FR 1595, January
    6, 2017) ("AD 2017-01-07").

(c) APPLICABILITY

    This  AD  applies  to the  airplanes  specified  in paragraphs  (c)(1)
    through (c)(4) of  this AD,  certificated in any category,  all serial
    numbers.

(1) Dassault Aviation Model FAN JET FALCON, FAN JET FALCON SERIES C, D, E,
    F, and G airplanes.

(2) Dassault Aviation Model MYSTERE-FALCON 200 airplanes.

(3) Dassault Aviation  Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5
    airplanes.

(4) Dassault Aviation Model MYSTERE-FALCON 50 airplanes.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 52, Doors.

(e) REASON

    This AD was prompted by  a report indicating that during  approach for
    landing, the main entry door detached from an airplane. We are issuing
    this AD to detect and  correct defective crew/passenger doors. Such  a
    condition could result in the  in-flight opening or detachment of  the
    crew/passenger door,  which could  result in  loss of  control of  the
    airplane and injury to persons on the ground.

(f) COMPLIANCE

    Comply with this AD within the compliance times specified,  unless al-
    ready done.

(g) RETAINED  MAIN ENTRY/PASSENGER/CREW DOOR CLOSING INSPECTIONS,  ADJUST-
    MENTS, AND OPERATIONAL TESTS AND CORRECTIVE ACTIONS, WITH NO CHANGES

    This paragraph restates the requirements of paragraph (h) of  AD 2017-
    01-07,  with  no  changes.  Within  330  flight  hours  or  13 months,
    whichever occurs first after February 10, 2017 (the effective date  of
    AD 2017-01-07), unless  already done: Do  the applicable door  closing
    inspections, adjustments, and operational tests, and do all applicable
    corrective actions, in accordance with the Accomplishment Instructions
    of the applicable service information identified in paragraph  (g)(1),
    (g)(2), or  (g)(3) of  this AD.  Do all  applicable corrective actions
    before further flight.

(1) For Model FAN JET FALCON airplanes;  Model FAN JET FALCON SERIES C, D,
    E, F, and G airplanes;  and  Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5,
    and 20-F5 airplanes: Dassault Service Bulletin F20-789,  also referred
    to as 789, dated December 9, 2014.

(2) For Model MYSTERE-FALCON 200 airplanes: Dassault Service Bulletin F200
    -133, also referred to as 133, dated December 9, 2014.

(3) For Model MYSTERE-FALCON 50 airplanes:  Dassault Service Bulletin F50-
    531, also referred to as 531, dated December 9, 2014.

(h) NEW REQUIREMENT OF THIS AD:  REPETITIVE MAIN ENTRY/PASSENGER/CREW DOOR
    CLOSING INSPECTIONS, ADJUSTMENTS, AND OPERATIONAL TESTS AND CORRECTIVE
    ACTIONS

    Within 72 months after accomplishing the actions required by paragraph
    (g) of this AD,  and thereafter  at intervals not to exceed 72 months,
    repeat the actions specified in paragraph  (g) of this AD, and do  all
    applicable corrective actions,  in accordance with  the Accomplishment
    Instructions  of  the  applicable  service  information  identified in
    paragraph (g)(1),  (g)(2), or  (g)(3) of  this AD.  Do all  applicable
    corrective actions before further flight.

(i) OTHER FAA AD PROVISIONS

(1) Alternative Methods of Compliance (AMOCs):  The Manager, International
    Section, Transport Standards 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  local Flight  Standards District  Office, as
    appropriate.  If  sending information  directly  to the  International
    Section,  send  it  to  the  attention  of  the  person  identified in
    paragraph (j)(2) of this AD. Information may be emailed to:  9-ANM-116
    -AMOC-REQUESTS@faa.gov.

(i) Before using any approved AMOC,  notify your appropriate principal in-
    spector,  or  lacking a principal inspector,  the manager of the local
    flight standards district office/certificate holding district office.

(ii) AMOCs approved previously  for AD 2017-01-07,  Amendment 39-18774 (82
     FR 1595, January 6, 2017) are approved as AMOCs for the corresponding
     provisions of this AD.

(2) Contacting the Manufacturer:  As of the effective date of this AD, for
    any  requirement  in  this  AD to  obtain  corrective  actions  from a
    manufacturer, the action must be accomplished using a method  approved
    by  the Manager,  International Section,  Transport Standards  Branch,
    FAA;  or  the  European Aviation  Safety  Agency  (EASA); or  Dassault
    Aviation's EASA Design Organization Approval (DOA). If approved by the
    DOA, the approval must include the DOA-authorized signature.

(j) RELATED INFORMATION

(1) Refer to Mandatory Continuing Airworthiness Information (MCAI) EASA AD
    2017-0123, dated July 20, 2017, for related information. This MCAI may
    be found in the AD docket on the internet  at  http://www.regulations.
    gov by searching for and locating Docket No. FAA-2018-0117.

(2) For more information about this AD,  contact Tom Rodriguez,  Aerospace
    Engineer,  International Section,  Transport  Standards  Branch,  FAA,
    Transport Standards Branch,  FAA, 2200 South 216th St., Des Moines, WA
    98198; telephone 206-231-3226; fax 206-231-3398.

(3) For service information identified in this AD, contact Dassault Falcon
    Jet Corporation, Teterboro Airport,  PO Box 2000, South Hackensack, NJ
    07606; telephone 201-440-6700; internet http://www.dassaultfalcon.com.
    You may view this service information at the FAA,  Transport Standards
    Branch,  FAA,  Transport Standards Branch,  2200 South 216th St.,  Des
    Moines, WA.  For information  on the availability  of this material at
    the FAA, call 206-231-3195.

Issued in Renton, Washington, on February 20, 2018. Michael Kaszycki, Act-
ing Director, System Oversight Division, Aircraft Certification Service.

DATES: We must receive comments on this proposed AD by April 16, 2018.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0117; Product Identifier 2017-NM-104-AD]
RIN 2120-AA64

Airworthiness Directives; Dassault Aviation Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-01-
07, which applies to all Dassault Aviation Model FAN JET FALCON
airplanes, FAN JET FALCON SERIES C, D, E, F, and G airplanes; Model
MYSTERE-FALCON 200 airplanes; Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5,
and 20-F5 airplanes; and MYSTERE-FALCON 50 airplanes. AD 2017-01-07
requires a functional test or check of the main entry door closure and
warning system, and applicable door closing inspections, adjustments,
operational tests, and corrective actions if necessary. Since we issued
AD 2017-01-07, we have determined that the required actions must be
repetitively performed to ensure continued safety. This proposed AD
would require repetitive door closing inspections, adjustments,
operational tests, and corrective actions if necessary. We are
proposing this AD to address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by April 16, 2018.

ADDRESSES: You may send comments, using the procedures found in 14 CFR
11.43 and 11.45, by any of the following methods:

Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the
instructions for submitting comments.

Fax: 202-493-2251.

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.

Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m.,
Monday through Friday, except Federal holidays.

For service information identified in this NPRM, contact Dassault
Falcon Jet Corporation, Teterboro Airport, P.O. Box 2000, South
Hackensack, NJ 07606; telephone: 201-440-6700; internet: http://
www.dassaultfalcon.com. You may view this referenced service
information at the FAA, Transport Standards Branch, 2200 South 216th
St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206-231-3195.

Examining the AD Docket

You may examine the AD docket on the internet at http://www.regulations.
gov by searching for and locating Docket No. FAA-2018-0117;
or in person at the Docket Management Facility between 9 a.m. and
5 p.m., Monday through Friday, except Federal holidays. The AD docket
contains this NPRM, the regulatory evaluation, any comments received,
and other information. The street address for the Docket Operations
office (telephone: 800-647-5527) is in the ADDRESSES section. Comments
will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer,
International Section, Transport Standards Branch, FAA, Transport
Standards Branch, FAA, 2200 South 216th St., Des Moines, WA 98198;
telephone: 206-231-3226; fax: 206-231-3398.

SUPPLEMENTARY INFORMATION:

Comments Invited

We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include "Docket No. FAA-2018-0117;
Product Identifier 2017-NM-104-AD" at the beginning of your comments.
We specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this proposed AD. We will consider
all comments received by the closing date and may amend this proposed
AD based on those comments.

We will post all comments we receive, without change, to http://www.
regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.

Discussion

We issued AD 2017-01-07, Amendment 39-18774 (82 FR 1595, January 6,
2017) ("AD 2017-01-07"), for all Dassault Aviation Model FAN JET
FALCON airplanes, FAN JET FALCON SERIES C, D, E, F, and G airplanes;
Model MYSTERE-FALCON 200 airplanes; Model MYSTERE-FALCON 20-C5, 20-D5,
20-E5, and 20-F5 airplanes; and MYSTERE-FALCON 50 airplanes. AD 2017-
01-07 requires a functional test or check of the main entry door
closure and warning system, and applicable door closing inspections,
adjustments, operational tests, and corrective actions if necessary. AD
2017-01-07 resulted from a report that, during approach for landing,
the main entry door detached from an airplane. We issued AD 2017-01-07
to detect and correct defective crew/passenger doors. Such a condition
could result in the in-flight opening or detachment of the crew/
passenger door, which could result in loss of control of the airplane
and injury to persons on the ground.

Actions Since AD 2017-01-07 Was Issued

Since we issued AD 2017-01-07, we have determined that repetitive
door closing inspections, adjustments, operational tests, and
corrective actions if necessary, must be repetitively performed to
ensure continued safety.

The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Union, has issued EASA AD
2017-0123, dated July 20, 2017 (referred to after this as the Mandatory
Continuing Airworthiness Information, or "the MCAI"), to correct an
unsafe condition for all Dassault Aviation Model FAN JET FALCON, FAN
JET FALCON SERIES C, D, E, F, and G airplanes; Model MYSTERE-FALCON 200
airplanes; Model MYSTERE-FALCON 20-C5, 20-D5, 20-E5, and 20-F5
airplanes; and Model MYSTERE-FALCON 50 airplanes. The MCAI states:

During approach for landing, at an altitude of 7,000 feet, a
MF20-D5 lost the main entry door (MED). The flight crew maintained
control of the aeroplane to land uneventfully. The results of the
preliminary technical investigations concluded that the cause of
this event could be either a broken cable, or an unlocked safety
catch, associated with one or two deficient micro switches.

This condition, if not detected and corrected, could lead to in-
flight opening and/or detachment of the MED, possibly resulting in
loss of control of the aeroplane, and/or injury to persons on the
ground.

To address this potential unsafe condition, Dassault issued
Service Bulletin (SB) F20-789, SB F200-133 and SB MF50-531,
providing instructions for inspection/adjustment, and an operational
test of the MED closure. Consequently, EASA issued AD 2015-0007
[which corresponds to FAA AD 2017-01-07] to require a one-time
accomplishment of a functional test/check of the MED closure/warning
system. It also required [a general visual] inspection and
operational test of the MED [including the control and latching
mechanisms] and, depending on findings, accomplishment of applicable
corrective action(s).

Since that [EASA] AD was issued, EASA determined that the
inspection and operational test of the MED must be repeated to
ensure continued safety.

For the reasons described above, this [EASA] AD retains the
requirements of EASA AD 2015-0007, which is superseded, and
additionally requires repetitive inspections and operational tests
of the MED.

Corrective actions include adjusting the telescopic rod bolts on
the door until the clearance between the lower part of the door and the
fuselage is within the specified tolerances. The corrective actions for
the control and latching mechanisms include adjusting components and
replacing damaged components (including pull latches, microswitches,
pulleys, and cables). Signs of damage include cracks, corrosion, wear,
and distortion. You may examine the MCAI in the AD docket on the
internet at http://www.regulations.gov by searching for and locating
Docket No. FAA-2018-0117.

Related Service Information Under 1 CFR Part 51


Dassault Aviation has issued the following service information.

Dassault Service Bulletin F20-789, also referred to as 789, dated
December 9, 2014.

Dassault Service Bulletin F50-531, also referred to as 531, dated
December 9, 2014.

Dassault Service Bulletin F200-133, also referred to as 133, dated
December 9, 2014.

This service information describes procedures for inspections,
adjustments, and operational tests of certain doors and corrective
actions. These documents are distinct since they apply to different
airplane models. This service information 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 and Requirements of This Proposed AD


This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of these
same type designs.

Costs of Compliance

We estimate that this proposed AD affects 392 airplanes of U.S.
registry.

We estimate the following costs to comply with this proposed AD:

Estimated Costs

Action Labor cost Parts cost Cost per product Cost on U.S. operators
Inspections/adjustments/operational tests (retained actions from AD 2017-01-07) 4 work-hours x $85 per hour = $340 $0 $340 $133,280
Inspections/adjustments/operational tests (new proposed action) 4 work-hours x $85 per hour = $340 per inspection cycle 0 $340 per inspection cycle $133,280 per inspection cycle

We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this proposed
AD.

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.

We are 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 proposed AD is issued in accordance with authority delegated
by the Executive Director, Aircraft Certification Service, as
authorized by FAA Order 8000.51C. In accordance with that order,
issuance of ADs is normally a function of the Compliance and
Airworthiness Division, but during this transition period, the
Executive Director has delegated the authority to issue ADs applicable
to transport category airplanes to the Director of the System Oversight
Division.

Regulatory Findings

We determined that this proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:

1. Is not a "significant regulatory action" under Executive Order
12866;

2. Is not a "significant rule" under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979);

3. Will not affect intrastate aviation in Alaska; and

4. 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.

The Proposed Amendment


Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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 removing Airworthiness Directive (AD)
2017-01-07, Amendment 39-18774 (82 FR 1595, January 6, 2017), and
adding the following new AD: