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2014-08-03 BOMBARDIER, INC.: Amendment 39-17827. Docket No. FAA-2013-1069; Directorate Identifier 2013-NM-197-AD.
(a) EFFECTIVE DATE

    This AD becomes effective May 21, 2014.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD  applies to  Bombardier, Inc.  airplanes, certificated  in any
    category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of  this
    AD.

(1) Bombardier, Inc.  Model  CL-600-2C10  (Regional Jet Series 700, 701, &
    702) airplanes, serial numbers 10002 through 10335 inclusive.

(2) Bombardier, Inc. Model CL-600-2D15 (Regional Jet Series 705) airplanes
    and  Bombardier,  Inc.  Model CL-600-2D24  (Regional  Jet  Series 900)
    airplanes, serial numbers 15001 through 15293 inclusive.

(3) Bombardier, Inc.  Model  CL-600-2E25  (Regional Jet Series 1000)  air-
    planes, serial numbers 19002 through 19036 inclusive.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 27, Flight controls.

(e) REASON

    This AD was prompted by  a determination that for certain  slat system
    jam-disconnect failure cases,  the resulting slat  skew could lead  to
    failure of the eccentric pin at the slat track attachment. If the  pin
    migrates out  of the  attachment lugs,  this could  cause certain slat
    panels to disconnect from the wing. We are issuing this AD to  prevent
    failure of the eccentric pins  at the slat track attachment,  and slat
    panels consequently disconnecting from  the wing, leading to  the loss
    of the airplane.

(f) COMPLIANCE

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

(g) REPLACEMENT

    Within 6,000 flight hours or 30 months, whichever occurs first,  after
    the effective date  of this AD:  Remove and replace  the locking plate
    having part number (P/N) CC670-12076-1 with an anti-migration assembly
    having P/N CC670-12370-1,  on both  the left and right number 3 slats,
    in  accordance  with  the  Accomplishment  Instructions  of Bombardier
    Service Bulletin 670BA-27-066, dated June 10, 2013.

(h) PARTS INSTALLATION PROHIBITION

    As of the effective date of this AD, no person may install any locking
    plate having P/N CC670-12076-1 on any airplane.

(i) OTHER FAA AD PROVISIONS

    The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs):  The Manager, New York Air-
    craft Certification Office (ACO),  ANE-170, 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 tour request  to
    your principal inspector or local Flight Standards District Office, as
    appropriate. If sending information directly to the New York ACO, send
    it to ATTN: Program  Manager, Continuing Operational Safety,  FAA, New
    York  ACO,  1600  Stewart  Avenue,  Suite  410,  Westbury,  NY  11590;
    telephone 516-228-7300;  fax 516-794-5531.  Before using  any approved
    AMOC,  notify  your  appropriate  principal  inspector,  or  lacking a
    principal  inspector,  the  manager  of  the  local  flight  standards
    district office/certificate holding district office. The AMOC approval
    letter must specifically reference this AD.

(2) Airworthy Product: For any requirement in this AD to obtain corrective
    actions  from  a  manufacturer,  use these  actions  if  they  are FAA
    -approved. Corrective actions are considered FAA-approved if they were
    approved by the State of Design Authority (or its delegated agent,  or
    the Design Approval Holder with  a State of Design Authority's  design
    organization approval, as applicable). You are required to ensure  the
    product is airworthy before it is returned to service.

(j) RELATED INFORMATION

    Refer  to  Mandatory   Continuing  Airworthiness  Information   (MCAI)
    Canadian  Airworthiness  Directive CF-2013-31,  dated October 8, 2013,
    for related information. This  MCAI may be found  in the AD docket  on
    the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2013
    -1069-0002.

(k) 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) Bombardier Service Bulletin 670BA-27-066, dated June 10, 2013.

(ii) Reserved.

(3) For  service  information identified in this AD,  contact  Bombardier,
    Inc., 400 Cote-Vertu Road West, Dorval, Quebec H4S 1Y9, Canada;  tele-
    phone 514-855-5000;  fax 514-855-7401;  email thd.crj@aero.bombardier.
    com; Internet http://www.bombardier.com.

(4) You may view this service information at the FAA,  Transport  Airplane
    Directorate, 1601 Lind Avenue SW., Renton, WA. For information on  the
    availability of this material at the FAA, call 425-227-1221.

(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 Renton, Washington, on April 4, 2014. Jeffrey E. Duven, Manager,
Transport Airplane Directorate, Aircraft Certification Service.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer, Airframe
and  Mechanical   Systems  Branch,   ANE-171,  FAA,   New  York   Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY  11590;
telephone (516) 228-7318; fax (516) 794-5531.
PREAMBLE 

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

ACTION: Final rule.

SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, &
702) airplanes, Model CL-600-2D15 (Regional Jet Series 705) airplanes,
Model CL-600-2D24 (Regional Jet Series 900) airplanes, and Model CL-
600-2E25 (Regional Jet Series 1000) airplanes. This AD was prompted by
a determination that for certain slat system failure cases, the
resulting slat skew could lead to failure of the slat system. This AD
requires replacing certain locking plates with certain anti-migration
assemblies on certain left and right wing slats. We are issuing this AD
to prevent failure of the eccentric pins at the slat track attachment,
and slat panels consequently disconnecting from the wing, leading to
the loss of the airplane.

DATES: This AD becomes effective May 21, 2014.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 21,
2014.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2013-1069; or in person
at the 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.
For service information identified in this AD, contact Bombardier,
Inc., 400 C[ocirc]te-Vertu Road West, Dorval, Qu[eacute]bec H4S 1Y9,
Canada; telephone 514-855-5000; fax 514-855-7401; email
thd.crj@aero.bombardier.com; Internet http://www.bombardier.com. You
may view this referenced service information at the FAA, Transport
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information
on the availability of this material at the FAA, call 425-227-1221.

FOR FURTHER INFORMATION CONTACT: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone (516) 228-7318; fax (516) 794-5531.

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 Bombardier, Inc.
Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes,
Model CL-600-2D15 (Regional Jet Series 705) airplanes, Model CL-600-
2D24 (Regional Jet Series 900) airplanes, and Model CL-600-2E25
(Regional Jet Series 1000) airplanes. The NPRM published in the Federal
Register on January 2, 2014 (79 FR 70).

Transport Canada Civil Aviation (TCCA), which is the airworthiness
authority for Canada, has issued Canadian Airworthiness Directive CF-
2013-31, dated October 8, 2013 (referred to after this as the Mandatory
Continuing Airworthiness Information, or ``the MCAI''), to correct an
unsafe condition. The MCAI states:

It was discovered that for certain slat system jam-disconnect
failure cases, the resulting slat skew could lead to failure of the
eccentric pin at the slat track 3-3 attachment. If the pin migrates
out of the attachment lugs, this could cause the No. 3 slat panels
to disconnect from the wing and could lead to the loss of the
aeroplane.
This [Canadian] AD mandates the replacement of the locking plate
with an anti-migration assembly on both the left and right No. 3
slats.

You may examine the MCAI in the AD docket on the Internet at http://www.regulations.gov/#!documentDetail;D=FAA-2013-1069-0002.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM (79 FR 70, January 2,
2014) or on the determination of the cost to the public.

Conclusion

We reviewed the relevant data and determined that air safety and
the public interest require adopting this AD 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 (79 FR 70, January 2, 2014) for correcting the unsafe condition;
and
Do not add any additional burden upon the public than was
already proposed in the NPRM (79 FR 70, January 2, 2014).

Costs of Compliance

We estimate that this AD affects 401 airplanes of U.S. registry.
We also estimate that it will take about 9 work-hours per product
to comply with the basic requirements of this AD. The average labor
rate is $85 per work-hour. Required parts will cost about $780 per
product. Based on these figures, we estimate the cost of this AD on
U.S. operators to be $619,545, or $1,545 per product.
According to the manufacturer, some of the costs of this AD may be
covered under warranty, thereby reducing the cost impact on affected
individuals. We do not control warranty coverage for affected
individuals. As a result, we have included all costs in our 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.
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.

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.

Examining the AD Docket

You may examine the AD docket on the Internet at http://www.regulations.gov/#!docketDetail;D=FAA-2013-1069; 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 Operations office (telephone 800-647-
5527) is in the ADDRESSES section.

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):