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2018-24-02 DASSAULT AVIATION: Amendment 39-19506; Docket No. FAA-2018-0760; Product Identifier 2018-NM-095-AD.
(a) EFFECTIVE DATE

    This AD is effective January 2, 2019.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD applies to Dassault Aviation Model MYSTERE-FALCON 50, MYSTERE-
    FALCON 900, and FALCON 900EX airplanes equipped with blended  winglets
    installed in accordance with  the supplemental type certificate  (STC)
    specified in paragraph (c)(1) or (c)(2) of this AD, as applicable.

(1) For Model MYSTERE-FALCON 50 airplanes: STC ST02241SE.

(2) For Model MYSTERE-FALCON 900 and FALCON 900EX airplanes STC ST02188SE.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 57, Wings.

(e) UNSAFE CONDITION

    This  AD  was  prompted  by  reports  of  cracked  reinforcing  straps
    (doublers)  on  the left-hand  (LH)  and right-hand  (RH)  ailerons of
    airplanes equipped with  blended winglets. We  are issuing this  AD to
    address cracking of  aileron reinforcing straps,  which could lead  to
    fatigue cracking of the ailerons and subsequent loss of control of the
    airplane.

(f) COMPLIANCE

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

(g) REPETITIVE INSPECTIONS AND CORRECTIVE ACTION

    Within 8  months or  400 flight  hours (FH),  whichever occurs  first,
    after the effective date of  this AD, and thereafter at  intervals not
    to exceed 8 months  or 400 FH, whichever  occurs first: Do a  detailed
    inspection for cracking of the  upper and lower reinforcing straps  of
    the  LH  and  RH  ailerons,  in  accordance  with  the  Accomplishment
    Instructions of Aviation Partners, Inc., Falcon Service Bulletin  SBF9
    -17-001, Revision B, dated December 20, 2017.  If any cracked  aileron
    reinforcing  strap  is  found,  before  further  flight:  Replace  the
    reinforcing  strap   with  a   new  part,   in  accordance   with  the
    Accomplishment Instructions of Aviation Partners, Inc., Falcon Service
    Bulletin SBF9-17-002, Revision A, dated December 20, 2017.

(h) TERMINATING ACTION FOR REPETITIVE INSPECTIONS

    Replacement  of  any  aileron reinforcing  strap with  a new  part, in
    accordance with the Accomplishment Instructions of Aviation  Partners,
    Inc., Falcon Service Bulletin SBF9-17-002, Revision A,  dated December
    20, 2017,  constitutes terminating action  for the  repetitive inspec-
    tions required by paragraph (g) of this AD for that part only.

(i) CREDIT FOR PREVIOUS ACTIONS

(1) This paragraph provides credit for the inspections  specified in para-
    graph (g) of this AD,  if  those  actions  were  performed  before the
    effective date of this AD using Aviation Partners, Inc, Falcon Service
    Bulletin SBF9-17-001, dated March 3, 2017; or Aviation Partners, Inc.,
    Falcon Service Bulletin SBF9-17-001, Revision A, dated April 4, 2017.

(2) This paragraph provides credit for the replacement  specified in para-
    graphs (g) and (h) of this AD,  if those actions were performed before
    the effective date of this AD  using  Aviation Partners, Inc.,  Falcon
    Service Bulletin SBF9-17-002, dated March 7, 2017.

(j) NO REPORTING REQUIREMENT AND NO PARTS RETURN

(1) Although Aviation Partners, Inc., Falcon Service Bulletin SBF9-17-001,
    Revision B, dated December 20, 2017 and Aviation Partners, Inc, Falcon
    Service Bulletin  SBF9-17-002,  Revision A,  dated  December 20, 2017;
    specify to submit certain information  to  the manufacturer,  this  AD
    does not include that requirement.

(2) Although Aviation Partners, Inc., Falcon Service Bulletin SBF9-17-002,
    Revision A, dated December 20, 2017, specifies salvaging and returning
    a damaged strap to Aviation Partners, Inc.,  this AD  does not include
    that requirement.

(k) ALTERNATIVE METHODS OF COMPLIANCE (AMOCS)

(1) The  Manager,  Seattle ACO 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 manager of the
    certification  office,  send it to the attention of the person identi-
    fied in paragraph (l)(1) of this AD. Information may be emailed to: 9-
    ANM-Seattle-ACO-AMOC-Requests@faa.gov.

(2) 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.

(l) RELATED INFORMATION

(1) For more information about this AD contact Michael Bumbaugh, Aerospace
    Engineer, Airframe Section, FAA, Seattle ACO Branch,  2200 South 216th
    St, Des Moines, WA 98198; phone and fax: 206-231-3522; email: Michael.
    Bumbaugh@faa.gov.

(2) Service information  identified in this AD that is not incorporated by
    reference is available at the addresses specified in paragraphs (m)(3)
    and (m)(4) of this AD.

(m) 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 the AD specifies otherwise.

(i) Aviation Partners, Inc., Falcon Service Bulletin SBF9-17-001, Revision
    B, dated December 20, 2017.

(ii) Aviation Partners, Inc, Falcon Service Bulletin SBF9-17-002, Revision
     A, dated December 20, 2017.

(3) For  service  information  identified  in  this  AD,  contact Aviation
    Partners, Inc.,  7299 Perimeter Road South,  Seattle,  WA  98108-3812;
    phone: 206-762-1171;  email: mwilliams@winglets.com; internet: http://
    www.aviationpartners.com.

(4) You may view this 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.

(5) 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 Des  Moines, Washington, on  November 15, 2018.  Dionne Palermo,
Acting  Director,  System   Oversight  Division,  Aircraft   Certification
Service.

FOR FURTHER INFORMATION CONTACT:  Michael  Bumbaugh,  Aerospace  Engineer,
Airframe Section,  FAA,  Seattle  ACO  Branch,  2200 South 216th St.,  Des
Moines, WA 98198; phone and fax: 206-231-3522; email: Michael.Bumbaugh@faa
.gov.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0760; Product Identifier 2018-NM-095-AD; Amendment
39-19506; AD 2018-24-02]
RIN 2120-AA64

Airworthiness Directives; Dassault Aviation Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Dassault Aviation Model MYSTERE-FALCON 50, MYSTERE-FALCON 900, and
FALCON 900EX airplanes. This AD was prompted by reports of cracked
reinforcing straps (doublers) on the ailerons of airplanes equipped
with blended winglets. This AD requires repetitive detailed inspections
for cracking of the upper and lower reinforcing straps on the ailerons,
and replacement if necessary. We are issuing this AD to address the
unsafe condition on these products.

DATES: This AD is effective January 2, 2019.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of January 2,
2019.

ADDRESSES: For service information identified in this final rule,
contact Aviation Partners, Inc., 7299 Perimeter Road South, Seattle, WA
98108-3812; phone: 206-762-1171; email: mwilliams@winglets.com;
internet: http://www.aviationpartners.com. You may view this 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. It is also available on the
internet at http://www.regulations.gov by searching for and locating
Docket No. FAA-2018-0760.

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-
0760; 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, the regulatory evaluation, any comments received, and
other information. The address for Docket Operations (phone: 800-647-
5527) 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: Michael Bumbaugh, Aerospace Engineer,
Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des
Moines, WA 98198; phone and fax: 206-231-3522; email:
Michael.Bumbaugh@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 by adding an AD that would apply to certain Dassault Aviation
Model MYSTERE-FALCON 50, MYSTERE-FALCON 900, and FALCON 900EX
airplanes. The NPRM published in the Federal Register on August 24,
2018 (83 FR 42810). The NPRM was prompted by reports of cracked
reinforcing straps (doublers) on the ailerons of airplanes equipped
with blended winglets. The NPRM proposed to require repetitive detailed
inspections for cracking of the upper and lower reinforcing straps on
the ailerons, and replacement if necessary.
We are issuing this AD to address cracking of aileron reinforcing
straps, which could lead to fatigue cracking of the ailerons and
subsequent loss of control of the airplane.

Comments

We gave the public the opportunity to participate in developing
this final rule. We have considered the comment received. The
commenter, Sean Sullivan, indicated support for the NPRM.

Conclusion

We reviewed the relevant data, considered the comment received, and
determined that air safety and the public interest require adopting
this final rule as proposed, except for minor editorial changes. We
have 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

We reviewed Aviation Partners, Inc., Falcon Service Bulletin SBF9-
17-001, Revision B, dated December 20, 2017. This service information
describes procedures for detailed inspections for any signs of cracking
of the external upper and lower reinforcing straps on the left-hand
(LH) and right-hand (RH) ailerons.
We also reviewed Aviation Partners, Inc., Falcon Service Bulletin
SBF9-17-002, Revision A, dated December 20, 2017. This service
information describes procedures for replacing the external upper and
lower reinforcing straps on the LH and RH ailerons.
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.

Costs of Compliance

We estimate that this AD affects 70 airplanes of U.S. registry. We
estimate the following costs to comply with this AD:

Estimated Costs

Action Labor cost Parts cost Cost per product Cost on U.S. operators
Repetitive inspections 1 work-hour x $85 per hour = $85 per inspection cycle $0 $85 per inspection cycle $5,950 per inspection cycle

Estimated Costs for Optional Actions

Action Labor cost Parts cost Cost per product
Replacement (4 doublers) 32 work-hours x $85 per hour = $2,720 $4,540 $7,260

We estimate the following costs to do any necessary replacements
that would be required based on the results of the inspection. We have
no way of determining the number of aircraft that might need these
replacements:

On-Condition Costs

Action Labor cost Parts cost Cost per product
Replacement (per doubler) 8 work-hours x $85 per hour = $680 (per doubler) $1,135 (per doubler) $1,815 (per doubler)

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 and
associated appliances to the Director of the System Oversight Division.

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) Is not a ``significant rule'' under 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 adding the following new airworthiness
directive (AD):