
[Federal Register Volume 82, Number 97 (Monday, May 22, 2017)]
[Proposed Rules]
[Pages 23156-23158]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-10137]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0477; Directorate Identifier 2016-NM-112-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Bombardier, Inc., Model CL-600-2B16 (CL-601-3A, CL-601-3R, and 
CL-604 Variants) airplanes. This proposed AD was prompted by a report 
indicating that the lanyard length of the passenger drop down oxygen 
masks is too long. This proposed AD would require replacing the 
existing oxygen mask lanyards with lanyards of the correct length. We 
are proposing this AD to address the unsafe condition on these 
products.

DATES: We must receive comments on this proposed AD by July 6, 2017.

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 
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.

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-
0477; 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 proposed 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. 
Comments will be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Cesar A. 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:

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-2017-0477; 
Directorate Identifier 2016-NM-112-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

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-15, dated June 1, 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-600-2B16 (CL-
601-3A, CL-601-3R, and CL-604 Variants) airplanes. The MCAI states:

    Bombardier (BA) has determined that the lanyard length of the 
passenger drop down oxygen masks is too long and may cause the 
safety pin tethered to the opposite end of the lanyard to remain 
engaged in the oxygen flow mechanism when the mask is pulled to the 
passenger's face. In an emergency situation where oxygen is 
required, it is possible that certain passengers may not receive 
oxygen

[[Page 23157]]

supply due to the increased length of the lanyard.
    [Bombardier] has issued service bulletin (SB) 605-35-003 to 
replace the existing lanyards in the passenger oxygen box assemblies 
with lanyards of the correct length. Incorporation of this 
[Bombardier service bulletin] will restore the proper oxygen flow 
functionality to the passenger oxygen masks in the event of an 
emergency.
    This [Canadian] AD mandates the incorporation of [Bombardier 
service bulletin] 605-35-003.

    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-
0477.

Related Service Information Under 1 CFR Part 51

    Bombardier, Inc., issued Service Bulletin 605-35-003, Revision 02, 
dated April 18, 2016. This service information describes procedures for 
replacing the existing oxygen mask lanyards with lanyards of the 
correct length. 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 the same 
type design.

Costs of Compliance

    We estimate that this proposed AD affects 120 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
             Action                      Labor cost             Parts cost          product         operators
----------------------------------------------------------------------------------------------------------------
Replacement.....................  4 work-hours x $85 per    Not available.....            $340          $40,800
                                   hour = $340.
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this proposed 
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 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

0
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]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

    Bombardier, Inc.: Docket No. FAA-2017-0477; Directorate 
Identifier 2016-NM-112-AD.

(a) Comments Due Date

    We must receive comments by July 6, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model CL-600-2B16 (CL-601-
3A, CL-601-3R, and CL-604 Variants) airplanes, certificated in any 
category, serial numbers 5702 through 5705 inclusive, 5707, 5709, 
5710, 5712, 5714, 5715, 5718, 5719, 5722, 5723, 5725, 5727, 5728, 
5731 through 5733 inclusive, 5735, 5736, 5740, 5742, 5743, 5745, 
5746, 5748 through 5750 inclusive, 5752 through 5754 inclusive, 5756 
through 5758 inclusive, 5760 through 5762 inclusive, 5764 through 
5766 inclusive, 5768 through 5770 inclusive, 5772 through 5774 
inclusive, 5776 through 5780 inclusive, 5782 through 5787 inclusive, 
5790, 5791, 5793, 5794, 5796, 5797, 5799, 5800, 5802, 5803, 5805 
through 5814 inclusive, 5816, 5818 through 5820 inclusive, 5823 
through 5829 inclusive, 5831 through 5853 inclusive, 5856, 5857, 
5859 through 5863 inclusive, 5865 through 5874 inclusive, 5876 
through 5881 inclusive, 5883 through 5888 inclusive, 5890 through 
5894 inclusive, 5896 through 5898 inclusive, 5900 through 5906 
inclusive, 5908 through 5911 inclusive, 5913 through 5938 inclusive, 
5940 through 5947 inclusive, 5949 through 5980 inclusive, 5982 
through 5985 inclusive, 5987, and 5988.

(d) Subject

    Air Transport Association (ATA) of America Code 35, Oxygen.

(e) Reason

    This AD was prompted by a report indicating that the lanyard 
length of the passenger drop down oxygen masks is too long. The 
length of the oxygen mask lanyard might cause the safety pin 
tethered to the opposite end of the lanyard to remain

[[Page 23158]]

engaged in the oxygen flow mechanism when the mask is pulled to the 
passenger's face. We are issuing this AD to prevent improper oxygen 
flow functionality to the passenger oxygen masks in the event of an 
emergency.

(f) Compliance

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

(g) Replacement of Oxygen Mask Lanyards

    Within 2,400 flight hours or 60 months, whichever occurs first 
after the effective date of this AD, replace the existing lanyards 
in the passenger oxygen box assemblies with lanyards of the correct 
length, in accordance with the Accomplishment Instructions of 
Bombardier Service Bulletin 605-35-003, Revision 02, dated April 18, 
2016.

(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 Bombardier Service Bulletin 605-35-003, dated 
January 28, 2016; or Bombardier Service Bulletin 605-35-003, 
Revision 01, dated February 10, 2016.

(i) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft 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 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 
Bombardier, Inc.'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 Airworthiness Directive CF-2016-15, dated June 1, 
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-2017-0477.
    (2) For more information about this AD, contact Cesar A. Gomez, 
Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, 
FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, NY 
11590; telephone 516-228-7318; fax 516-794-5531.
    (3) 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 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.

    Issued in Renton, Washington, on May 12, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-10137 Filed 5-19-17; 8:45 am]
 BILLING CODE 4910-13-P


