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2017-23-10 DASSAULT AVIATION: Amendment 39-19104; Docket No. FAA-2017-1023; Product Identifier 2017-NM-144-AD. 
(a) EFFECTIVE DATE

    This AD is effective December 1, 2017.

(b) AFFECTED ADS

    This  AD  replaces  AD 2017-19-17,  Amendment  39-19047  (82 FR 44305,
    September 22, 2017) ("AD 2017-19-17").

(c) APPLICABILITY

    This AD applies to the Dassault Aviation airplanes identified in para-
    graphs (c)(1) and (c)(2) of this AD, certificated in any category.

(1) Model FALCON 900EX airplanes,  serial numbers  (S/Ns)  270 through 291
    inclusive and 294.

(2) Model  FALCON 2000EX airplanes,  S/Ns  263 through 305 inclusive,  307
    through 313 inclusive, 315, 320, and 701 through 734 inclusive.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 30,  Ice and rain pro-
    tection.

(e) REASON

    This AD  was prompted  by a  design review  of in-production airplanes
    that identified a deficiency in certain wing anti-ice system  ducting.
    We are issuing this AD to detect and correct a deficiency in the  wing
    anti-ice system ducting, which could result in reduced performance  of
    the wing anti-ice system  with potential ice accretion  and ingestion,
    and  could  result  in degraded  engine  power  and degraded  handling
    characteristics.

(f) COMPLIANCE

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

(g) RETAINED REVISION TO THE AIRPLANE FLIGHT MANUAL (AFM), WITH NO CHANGES

    This paragraph restates the requirements of paragraph (g)  of AD 2017-
    19-17, with no changes.

(1) For  Model FALCON 900EX airplanes  on  which  the actions specified in
    Dassault Service Bulletin F900EX-464 have not been accomplished: With-
    in 10 flight cycles after September 6, 2016  (the effective date of AD
    2016-17-02, Amendment 39-18615 (81 FR 55366, August 19, 2016)("AD 2016
    -17-02")),  revise Section 4-200-05A, "OPERATION IN ICING CONDITIONS,"
    of  the  Model FALCON 900EX AFM to include the information in figure 1
    to paragraph (g)(1) of this AD,  and  thereafter  operate the airplane
    accordingly.  The AFM revision may be done by inserting a copy of this
    AD into the AFM.

    FIGURE 1 TO PARAGRAPH (G)(1) OF THIS AD –OPERATION IN ICING CONDITIONS
    ______________________________________________________________________
                        WINGS ANTI-ICE SYSTEM OPERATION

    During in-flight operation of a wings anti-ice system (WINGS ANTI-ICE)
    maintain the N1 of all engines equal to  or  more than  the values de-
    fined in Table 1, as applicable to atmospheric condition.

                                   Table 1

    New Minimum N1 values required  during  in-flight operation of a wings
    anti-ice system

                            Three operative engines:
    ______________________________________________________________________
    TAT                – 30 to        – 20 to         – 10 to      0 to
                       – 20 °C        – 10 °C         0 °C         + 10 °C
    ______________________________________________________________________
    Above 20,000 ft      79%            75%           71%          66%
    ______________________________________________________________________
    From 20,000 ft to    76%            73%           66%          59%
    10,000 ft
    ______________________________________________________________________
    Below 10,000 ft      68%            66%           61%          58%
    ______________________________________________________________________

    These new values include 3% increase compared to former values (4-200-
    05A page 1/2).

                             Two operative engines:
    ______________________________________________________________________
    TAT                – 30 to        – 20 to         – 10 to      0 to
                       – 20 °C        – 10 °C         0 °C         + 10 °C
    ______________________________________________________________________
    Above 20,000 ft      86%            82%           78%          73%
    ______________________________________________________________________
    From 20,000 ft to    83%            80%           73%          66%
    10,000 ft
    ______________________________________________________________________
    Below 10,000 ft      75%            73%           68%          65%
    ______________________________________________________________________

    These new values include 3% increase compared to former values (4-200-
    05A page 1/2).

    TAT – Total Air Temperature

    Note 1: Maintaining  the  N1  above the  minimum anti-ice  N1  on  all
    engines may lead  to exceedance of  approach speed. Early  approach or
    landing configuration of an  airplane and/or application of  airbrakes
    may be used to control the airspeed. In approach and landing and for a
    limited duration up to three minutes, selection of N1 speeds below the
    minimum anti-ice N1 speed is authorized. In this case it is  necessary
    to disengage the autothrottle.

    Effectivity: F900EX (LX variant) S/N 270 to 291,  294 without Dassault
    Aviation SB F900EX-464.
    ______________________________________________________________________

(2) For  Model  FALCON 2000EX airplanes  on which the actions specified in
    Dassault  Service Bulletin F2000EX-393  have  not  been  accomplished:
    Within 10 flight cycles after September 6, 2016 (the effective date of
    AD  2016-17-02),   revise  Section  4-200-05A,   "OPERATION  IN  ICING
    CONDITIONS," of the Model FALCON 2000EX AFM to include the information
    in figure 2 to paragraph (g)(2) of this AD, and thereafter operate the
    airplane accordingly. The AFM revision may be done by inserting a copy
    of this AD into the AFM.

    FIGURE 2 TO PARAGRAPH (G)(2) OF THIS AD –OPERATION IN ICING CONDITIONS
    ______________________________________________________________________
                        WING ANTI ICE SYSTEM OPERATION

    During  in-flight  operation of a wing anti-ice system (WING ANTI-ICE)
    maintain the N1 of both engines equal to  or  more than the values de-
    fined in Table 1, as applicable to atmospheric condition.

                                   Table 1

    New Minimum N1 values required during in-flight operation  of  a  wing
    anti-ice system

                      Two engines operative minimum N1:
    ______________________________________________________________________
               TAT     - 30 °C        - 15 °C         0 °C         + 10 °C
    Z
    ______________________________________________________________________
    31,000 ft            74.6           67.6          52.8         52.8
    ______________________________________________________________________
    22,000 ft            72.4           63.7          52.8         52.1
    ______________________________________________________________________
    3,000 ft             57.3           54.9          49.4         48.8
    ______________________________________________________________________
    0 ft                 54.9           54.9          49.4         48.8
    ______________________________________________________________________

    These new values include 2% increase compared to former values (4-200-
    05A page 1/2).

           One engine operative or one bleed inoperative minimum N1:
    ______________________________________________________________________
               TAT     - 30 °C        - 15 °C         0 °C         + 10 °C
    Z
    ______________________________________________________________________
    31,000 ft            82.4           77.0          64.0         58.0
    ______________________________________________________________________
    22,000 ft            79.2           72.0          59.8         56.6
    ______________________________________________________________________
    3,000 ft             71.2           66.4          59.8         49.3
    ______________________________________________________________________
    0 ft                 64.2           63.7          59.8         49.3
    ______________________________________________________________________

    These new values include 2% increase compared to former values (4-200-
    05A page 1/2).

    TAT – Total Air Temperature
    Z - Altitude

    Note 1: Maintaining  the  N1  above the  minimum anti-ice  N1  on  all
    engines may lead  to exceedance of  approach speed. Early  approach or
    landing configuration of an aeroplane and/or application of  airbrakes
    may be used to control the airspeed. In approach and landing and for a
    limited duration up to three minutes, selection of N1 speeds below the
    minimum anti-ice N1 speed is authorized.  In this case it is necessary
    to disengage the autothrottle.

    Effectivity: F2000EX (LX/S variants) S/N 263 to 305,  307 to 313, 315,
    320, 701 to 734 without Dassault Aviation SB F2000EX-393.
    ______________________________________________________________________

(h) RETAINED INSPECTION, PART REPLACEMENT, PART RE-IDENTIFICATION WITH RE-
    VISED AFFECTED AIRPLANES

    This paragraph restates the requirements of paragraph (h)  of AD 2017-
    19-17,  with revised affected airplanes.  For  Model FALCON 900EX air-
    planes:  Within 9 months after October 27, 2017 (the effective date of
    AD 2017-19-17),  do  a detailed inspection of the wing anti-ice system
    ducting (anti-ice pipe) for the presence of a diaphragm,  and  do  all
    applicable actions specified in paragraph (h)(1) or (h)(2) of this AD,
    in accordance with the Accomplishment Instructions of Dassault Service
    Bulletin F900EX-464, dated June 20, 2016. After the applicable actions
    specified in paragraph (h)(1) or (h)(2) of this AD have been completed
    the AFM revision required by paragraph (g)  of this AD  may be removed
    from the AFM for that airplane.

(1) If during the inspection required  by  the  introductory text to para-
    graph (h) of this AD it is determined that a diaphragm is present: Be-
    fore further flight, replace the wing anti-ice system ducting.

(2) If during the inspection required  by  the  introductory text to para-
    graph (h) of this AD it is determined that a diaphragm is not present:
    Before further flight, do a check of the anti-ice pipe part number and
    re-identify the wing anti-ice system ducting.

(i) NEW ACTIONS: INSPECTION, PART REPLACEMENT, PART RE-IDENTIFICATION

    For Model FALCON 2000EX airplanes: Within 9 months after the effective
    date of this AD, do a detailed inspection of the wing anti-ice  system
    ducting (anti-ice pipe)  for the presence  of a diaphragm,  and do all
    applicable actions specified in paragraph (i)(1) or (i)(2) of this AD,
    in accordance with the Accomplishment Instructions of Dassault Service
    Bulletin  F2000EX-393,  dated  June  20,  2016.  After  the applicable
    actions specified in paragraph (i)(1)  or (i)(2) of this AD  have been
    completed,  the AFM revision required  by paragraph (g) of this AD may
    be removed from the AFM for that airplane.

(1) If  during  the inspection required  by the introductory text to para-
    graph (i) of this AD it is determined that a diaphragm is not present:
    Before further flight, replace the wing anti-ice system ducting.

(2) If  during  the inspection required  by the introductory text to para-
    graph (i) of this AD it is determined that a diaphragm is present: Be-
    fore further flight,  do a check of the anti-ice pipe part number  and
    re-identify the wing anti-ice system ducting.

(j) OTHER FAA AD PROVISIONS

    The following provisions also apply to this AD:

(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
    (k)(2) of this AD.  Information  may  be  emailed  to: 9-ANM-116-AMOC-
    REQUESTS@faa.gov.  Before using any approved AMOC,  notify your appro-
    priate principal inspector, or lacking a principal inspector, the man-
    ager of the local flight standards district office/certificate holding
    district office.

(2) Contacting the Manufacturer:  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.

(k) RELATED INFORMATION

(1) Refer  to  Mandatory Continuing Airworthiness Information  (MCAI) EASA
    Emergency AD 2016-0130-E, dated July 5, 2016, 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-2017-1023

(2) For more information about this AD,  contact Tom Rodriguez,  Aerospace
    Engineer, International Section, Transport Standards Branch, FAA, 1601
    Lind Avenue SW, Renton, WA 98057-3356; telephone 425-227-1137; fax 425
    -227-1149.

(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.

(3) The following service information was approved for IBR  on October 27,
    2017 (82 FR 44305, September 22, 2017).

(i) Dassault Aviation Service Bulletin F900EX-464, dated June 20, 2016.

(ii) Dassault Aviation Service Bulletin F2000EX-393, dated June 20, 2016.

(4) 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.

(5) You may view this service information at the FAA,  Transport Standards
    Branch, 1601 Lind Avenue SW, Renton, WA. For information on the avail-
    ability of this material at the FAA, call 425-227-1221.

(6) You  may  view  this  service  information  that  is  incorporated  by
    reference at the  National Archives and Records Administration (NARA).
    For information on the availability of this material at NARA, call 202
    -741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-
    locations.html.

Issued in Renton, Washington, on November 7, 2017.  Dionne Palermo, Acting
Director, System Oversight Division, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Tom Rodriguez, Aerospace Engineer, Inter-
national Section, Transport Standards Branch,  FAA,  1601 Lind Avenue SW.,
Renton, WA 98057-3356; telephone 425-227-1137; fax 425-227-1149.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-1023; Product Identifier 2017-NM-144-AD; Amendment
39-19104; AD 2017-23-10]
RIN 2120-AA64

Airworthiness Directives; Dassault Aviation Airplanes

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

ACTION: Final rule; request for comments.

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

SUMMARY: We are superseding Airworthiness Directive (AD) 2017-19-17,
which applied to certain Dassault Aviation Model FALCON 900EX and
FALCON 2000EX airplanes. AD 2017-19-17 required revising the airplane
flight manual (AFM) to include procedures to follow when an airplane is
operating in icing conditions. AD 2017-19-17 also required a detailed
inspection of the wing anti-ice system ducting for the presence of a
diaphragm, and follow-on actions (replacement of ducting or re-
identification of the ducting part marking). This new AD retains the
actions required by AD 2017-19-17, and corrects the follow-on actions
for certain airplanes. This AD was prompted by a determination that the
follow-on actions specified in AD 2017-19-17 were incorrect for certain
airplanes. We are issuing this AD to address the unsafe condition on
these products.

DATES: This AD is effective December 1, 2017.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of October 27,
2017 (82 FR 44305, September 22, 2017).
We must receive comments on this AD by January 2, 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: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For 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 http://www.dassaultfalcon.com. You may view this referenced service
information at the FAA, Transport Standards Branch, 1601 Lind Avenue
SW., Renton, WA. For information on the availability of this material
at the FAA, call 425-227-1221. It is also available on the Internet at
http://www.regulations.gov by searching for and locating Docket No.
FAA-2017-1023.

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-2017-
1023; 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 AD, the regulatory evaluation, any comments received, and
other information. The street address for the Docket Office (telephone
800-647-5527) is Docket Management Facility, 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,
International Section, Transport Standards Branch, FAA, 1601 Lind
Avenue SW., Renton, WA 98057-3356; telephone 425-227-1137; fax 425-227-
1149.

SUPPLEMENTARY INFORMATION:

Discussion

We issued AD 2017-19-17, Amendment 39-19047 (82 FR 44305, September
22, 2017) (``AD 2017-19-17''), which applied to certain Dassault
Aviation Model FALCON 900EX and FALCON 2000EX airplanes. AD 2017-19-17
superseded AD 2016-17-02, Amendment 39-18615 (81 FR 55366, August 19,
2016). AD 2017-19-17 was prompted by a design review of in-production
airplanes that identified a deficiency in certain wing anti-ice system
ducting. AD 2017-19-17 required revision of the AFM to include
procedures to follow when an airplane is operating in icing conditions,
the detailed inspection of the wing anti-ice system ducting for the
presence of a diaphragm, and replacement of ducting or re-
identification of the ducting part marking. We issued AD 2017-19-17 to
detect and correct a deficiency in the wing anti-ice system ducting,
which could result in reduced performance of the wing anti-ice system
with potential ice accretion and ingestion, and could result in
degraded engine power and degraded handling characteristics.
Since we issued AD 2017-19-17, we found that the follow-on actions
specified in paragraphs (h)(1) and (h)(2) of AD 2017-19-17 are correct
for Model FALCON 900EX airplanes. However, for Model FALCON 2000EX
airplanes, the follow-on actions specified in paragraphs (h)(1) and
(h)(2) of AD 2017-19-17 would be dependent on different conditions than
those specified for Model FALCON 900EX airplanes. This AD corrects
those actions for Model FALCON 2000EX airplanes.
The European Aviation Safety Agency (EASA), which is the Technical
Agent for the Member States of the European Union, has issued EASA
Emergency AD 2016-0130-E, dated July 5, 2016 (referred to after this as
the Mandatory Continuing Airworthiness Information, or ``the MCAI''),
to correct an unsafe condition for certain Dassault Aviation Model
FALCON 900EX and FALCON 2000EX airplanes. The MCAI states:

A design review of in production aeroplanes identified a
manufacturing deficiency of some wing anti-ice system ducting.
This condition, if not detected and corrected, could lead to an
undetected reduced performance of the wing anti-ice system, with
potential ice accretion and ingestion, possibly resulting in
degraded engine power and degraded handling characteristics.
The Falcon 900EX EASY and Falcon * * * [2000EX] Aircraft Flight
Manuals (AFM) contain a normal procedure 4-200-05A, ``Operations in
Icing Conditions'', addressing minimum fan speed rotation (N1)
during combined operation of wing anti-ice and engine anti-ice
systems. The subsequent investigation demonstrated that the wing
anti-ice system performance for aeroplanes equipped with ducting
affected by the manufacturing deficiency can be restored increasing
N1 value. In addition, Dassault Aviation published Service Bulletin
(SB) F900EX-464 (for Falcon 900EX aeroplanes) and SB F2000EX-393
(for Falcon 2000EX aeroplanes), providing instructions for wing
anti-ice system ducting inspection.
For the reasons described above, this [EASA] AD requires an AFM
amendment and a one-time [detailed] inspection of the wing anti-ice
system ducting [and, as applicable, a check of the part number,]
and, depending on findings, re-identification or replacement of the
wing anti-ice system ducting.

You may examine the MCAI on the Internet at http://www.regulations.gov
by searching for and locating Docket No. FAA-2017-1023.

Related Service Information Under 1 CFR Part 51

Dassault has issued Service Bulletin F900EX-464, dated June 20,
2016; and Service Bulletin F2000EX-393, dated June 20, 2016. This
service information describes procedures for an inspection of the wing
anti-ice system ducting and re-identification or replacement of the
wing anti-ice system ducting. 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 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 issuing this AD because we
evaluated all pertinent information and determined the unsafe condition
exists and is likely to exist or develop on other products of these
same type designs.

FAA's Justification and Determination of the Effective Date

We determined that AD 2017-19-17 contains an error in the
description of follow-on actions that could allow the identified unsafe
condition to continue for Model FALCON 2000EX airplanes. This AD
corrects the follow-on actions for the Model FALCON 2000EX airplanes.
No other changes have been made to AD 2017-19-17. Therefore, we
determined that notice and opportunity for public comment before
issuing this AD are unnecessary and that good cause exists for making
this amendment effective in fewer than 30 days.

Comments Invited

This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. We invite you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include ``Docket No. FAA-2017-1023; Product
Identifier 2017-NM-144-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this AD because of
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 AD.

Costs of Compliance

We estimate that this AD affects 52 airplanes of U.S. registry.
The action required by AD 2017-19-17, and retained in this AD,
takes about 5 work-hours per product, at an average labor rate of $85
per work-hour. Based on these figures, the estimated cost of the action
that is required by AD 2017-19-17 is $425 per product. This AD adds no
new economic burden to AD 2017-19-17.
We also estimate that any necessary follow-on actions will take
about 19 work-hours and require parts costing $24,000, for a cost of
$25,615 per product. We have no way of determining the number of
aircraft that might need these actions.

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 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 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. 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.

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 removing airworthiness directive (AD)
2017-19-17, Amendment 39-19047 (82 FR 44305, September 22, 2017), and
adding the following new AD: