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2017-15-14 BOMBARDIER, INC. (TYPE CERTIFICATE PREVIOUSLY HELD BY CANADAIR LIMITED): Amendment 39-18974; Docket No. FAA-2017-0333; Directorate Identifier 2017-NM-005-AD.
(a) EFFECTIVE DATE

    This AD is effective September 5, 2017.

(b) AFFECTED ADS

    None.

(c) APPLICABILITY

    This AD applies to Bombardier, Inc.  (Type Certificate previously held
    by  Canadair Limited)  Model CL-215-6B11  (CL-415 Variant)  airplanes,
    certificated in any category,  having  serial numbers 2001, 2002, 2005
    through 2007 inclusive, 2010, 2012 through 2017 inclusive,  2019, 2022
    through 2024 inclusive, 2026, 2057, 2063, 2065, 2076, 2077, and 2081.

(d) SUBJECT

    Air Transport Association (ATA) of America Code 25, Equipment/Furnish-
    ings.

(e) REASON

    This AD was prompted  by a report indicating that an oxygen bottle was
    found loose while the clamp strap  was in the locked position.  We are
    issuing this AD to prevent an oxygen bottle from being released, which
    would result in a loose mass  object in the cockpit and could  also re
    - sult  in an  oxygen-rich environment  that could  lead to a possible
    fire hazard.

(f) COMPLIANCE

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

(g) INSTALLATION AND MODIFICATION

    Within  12 months  after  the  effective  date  of  this  AD,  install
    additional shims and modify the clamp strap,  as  applicable,  to  the
    flight crew’s oxygen bottles’retaining structures,  in accordance with
    the  Accomplishment Instructions  of  Bombardier Service Bulletin 215-
    4457, Revision 3, dated May 8, 2013.

(h) CREDIT FOR PREVIOUS ACTIONS

    This paragraph provides credit for actions required  by  paragraph (g)
    of this AD,  if those actions were performed before the effective date
    of this AD using any  of  the  service information identified in para-
    graphs (h)(1), (h)(2), or (h)(3) of this AD.

(1) Bombardier Service Bulletin 215-4457,  Revision 2,  dated  October 24,
    2012.

(2) Bombardier Service Bulletin 215-4457, Revision 1, dated June 12, 2012.

(3) Bombardier Service Bulletin 215-4457, dated April 4, 2012.

(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 your request  to
    your principal inspector or local Flight Standards District Office, as
    appropriate. If  sending information  directly to  the manager  of the
    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.

(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,  New York ACO,
    ANE-170, FAA; or Transport Canada Civil Aviation (TCCA); or Viking Air
    Limited’s TCCA Design Approval Organization (DAO). If approved by  the
    DAO, the approval must include the DAO-authorized signature.

(j) RELATED INFORMATION

(1) Refer   to   Mandatory  Continuing  Airworthiness  Information  (MCAI)
    Canadian AD CF-2016-33,  dated October 12, 2016,  for related informa-
    tion. 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-
    2017-0333.

(2) For more information  about this AD,  contact  Cesar Gomez,  Aerospace
    Engineer,  Airframe and Mechanical Systems Branch,  ANE-171,  FAA, New
    York Aircraft Certification Office (ACO),  1600 Stewart Avenue,  Suite
    410, Westbury, NY 11590; telephone 516-228-7318; fax 516-794-5531.

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

(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 215-4457, Revision 3, dated May 8, 2013.

(ii) Reserved.

(3) For  service information identified  in  this  AD, contact Bombardier,
    Inc., 400 Côte-Vertu Road West, Dorval, Québec 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 July 19, 2017.  Victor Wicklund, Acting
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 Certifica-
tion Office (ACO), 1600 Stewart Ave., Suite 410, Westbury, NY 11590; tele-
phone 516-228-7318; fax 516-794-5531.
PREAMBLE 

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0333; Directorate Identifier 2017-NM-005-AD;
Amendment 39-18974; AD 2017-15-14]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc. (Type Certificate
Previously Held by Canadair Limited) Airplanes

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-215-6B11 (CL-415 Variant) airplanes. This AD
was prompted by a report indicating that an oxygen bottle was found
loose while the clamp strap was in the locked position. This AD
requires modification of the clamp strap and installation of additional
shims, as applicable, to the flight crew's oxygen bottles' retaining
structures. We are issuing this AD to address the unsafe condition on
these products.

DATES: This AD is effective September 5, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of September 5,
2017.

ADDRESSES: For service information identified in this final rule,
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. It is also available on the Internet at http://www.
regulations.gov by searching for and locating Docket No. FAA-2017-0333.

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-
0333; 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: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office (ACO), 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-215-6B11 (CL-415 Variant) airplanes. The NPRM published in the
Federal Register on May 9, 2017 (82 FR 21482).
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD CF-2016-33, dated October
12, 2016 (referred to after this as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for certain Bombardier, Inc., Model CL-215-6B11 (CL-415
Variant) airplanes. The MCAI states:

During the implementation of Service Bulletin (SB) 215-4051, the
oxygen bottle was found loose while the clamp strap was in the
locked position. This was determined to be caused by the quick
release latch assembly not achieving the proper clamping pressure.
The release of the oxygen bottle due to improper clamping
pressure may result in a loose mass cockpit hazard or an oxygen rich
environment leading to a possible fire hazard.
In order to mitigate the unsafe condition, SB 215-4457 was
issued to modify the clamp strap and install additional shims to add
strength to the attaching structure for all affected aeroplanes.

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-2017-0333.

Comments

We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM 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 for correcting 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


Bombardier, Inc., has issued Service Bulletin 215-4457, Revision 3,
dated May 8, 2013. The service information describes procedures for
installing shims, and, for certain airplanes, modifying the straps of
the latch assembly, on the flight crew's oxygen bottles' retaining
structure. 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 24 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
Modification and installation 16 work-hours x $85 per hour = $1,360 $2,250 $3,610 $86,640

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.

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):