[Federal Register Volume 82, Number 176 (Wednesday, September 13, 2017)]
[Proposed Rules]
[Pages 42953-42955]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-19304]


 ========================================================================
 Proposed Rules
                                                 Federal Register
 ________________________________________________________________________
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 This section of the FEDERAL REGISTER contains notices to the public of 
 the proposed issuance of rules and regulations. The purpose of these 
 notices is to give interested persons an opportunity to participate in 
 the rule making prior to the adoption of the final rules.
 
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 

  Federal Register / Vol. 82, No. 176 / Wednesday, September 13, 2017 / 
Proposed Rules  

[[Page 42953]]



DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0810; Product Identifier 2017-NM-045-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 700, 
701, & 702), Model CL-600-2D15 (Regional Jet Series 705), Model CL-600-
2D24 (Regional Jet Series 900), and Model CL-600-2E25 (Regional Jet 
Series 1000) airplanes. This proposed AD was prompted by a report of a 
smoke-in-cabin event due to a non-sustaining electrical fire. This 
proposed AD would require installation of protective sleeves on the 
bonding jumper wires of affected galleys and lavatories. We are 
proposing this AD to address the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by October 30, 
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; Widebody Customer Response Center North America toll-
free telephone: 1-866-538-1247 or direct-dial telephone: 1-514-855-
2999; fax: 514-855-7401; email: [email protected]; Internet: 
http://www.bombardier.com. You may view this 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.

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-
0810; 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 NPRM, 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: Assata Dessaline, Aerospace Engineer, 
Avionics and Administrative Services Section, FAA, New York ACO Branch, 
1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone: 516-228-
7301; 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-2017-0810; 
Product Identifier 2017-NM-045-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM 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 NPRM.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2016-20R1, dated 
February 3, 2017 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Bombardier, Inc., Model CL-600-2C10 (Regional Jet 
Series 700, 701, & 702), Model CL-600-2D15 (Regional Jet Series 705), 
Model CL-600-2D24 (Regional Jet Series 900), and Model CL-600-2E25 
(Regional Jet Series 1000) airplanes. The MCAI states:

    A CRJ900 aeroplane reported a smoke in cabin event due to a non-
sustaining electrical fire. The source of smoke was traced to a 
burnt heated water supply line behind the #2 Galley. The surrounding 
insulation was also found burnt.
    The root cause of this electrical fire was an electrical short 
between an un-insulated bonding jumper and a terminal block carrying 
115 volts AC. The circuit resistance was high enough and the circuit 
breakers that protect the wiring did not trip open.
    Electrical short of a bonding jumper may result in in-flight 
smoke or fire events as well as failure of avionics equipment due to 
possible water spray or leakage from a damaged water supply line. 
The likelihood of this happening is increased by the removal and 
installation of the galley or lavatory during maintenance, allowing 
the bonding jumper to become wedged under the terminal block.
* * * * *
    Revision 1 of this [Canadian] AD is issued to mandate [the 
installation of protective sleeves on the galley and lavatory 
bonding jumper wires in accordance with] Bombardier Service Bulletin 
(SB) 670BA-25-101 Revision B dated 12 January 2017. * * *

    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-
0810.

Related Service Information Under 1 CFR Part 51

    Bombardier, Inc., has issued Bombardier Service Bulletin 670BA-25-
101, Revision B, dated January 12, 2017. The service information 
describes procedures for installation of protective sleeves on the 
bonding jumper wires of affected galleys and lavatories. This service 
information is reasonably available because the interested parties

[[Page 42954]]

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 these 
same type designs.

Costs of Compliance

    We estimate that this proposed AD affects 544 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
----------------------------------------------------------------------------------------------------------------
Install protective sleeves........  10 work-hours x $85    Negligible...........            $850        $462,400
                                     per hour = $850.
----------------------------------------------------------------------------------------------------------------

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 proposed 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 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-2017-0810; Product Identifier 2017-
NM-045-AD.

(a) Comments Due Date

    We must receive comments by October 30, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to the airplanes identified in paragraphs 
(c)(1), (c)(2), and (c)(3) of this AD, certificated in any category, 
all certificated models.
    (1) Bombardier, Inc., Model CL-600-2C10 (Regional Jet Series 
700, 701, & 702) airplanes, serial numbers 10001 through 10344 
inclusive.
    (2) Bombardier, Inc., Model CL-600-2D15 (Regional Jet Series 
705) and Model CL-600-2D24 (Regional Jet Series 900) airplanes, 
serial numbers 15001 through 15382 inclusive.
    (3) Bombardier, Inc., Model CL-600-2E25 (Regional Jet Series 
1000) airplanes, serial numbers 19001 through 19044 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.

(e) Reason

    This AD was prompted by a report of a smoke-in-cabin event due 
to a non-sustaining electrical fire. We are issuing this AD to 
prevent an electrical short of a bonding jumper wire that may result 
in in-flight smoke or fire events as well as failure of avionics 
equipment due to possible water spray or leakage from a damaged 
water supply line.

(f) Compliance

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

(g) Protective Sleeve Installation

    (1) For airplanes on which the actions specified in Bombardier 
Service Bulletin 670BA-25-101, dated December 17, 2015; or 
Bombardier Service Bulletin 670BA-25-101, Revision A, dated October 
31, 2016, have not been done, as of the effective date of this AD: 
Within 6,600 flight hours or 36 months after the effective date of 
this AD, whichever occurs first, install protective sleeves on the 
bonding jumper wires of affected galleys and lavatories, in 
accordance with Part A through Part E, as applicable, of the 
Accomplishment Instructions of Bombardier Service Bulletin 670BA-25-
101, Revision B, dated January 12, 2017.
    (2) For airplanes on which the actions specified in Bombardier 
Service Bulletin 670BA-25-101, dated December 17, 2015; or 
Bombardier Service Bulletin 670BA-25-101, Revision A, dated October 
31, 2016, have been done, as of the effective date of this AD: 
Within 6,600 flight hours or 36 months after

[[Page 42955]]

the effective date of this AD, whichever occurs first, inspect, and 
if required, install protective sleeves on the bonding jumper wires 
of affected galleys and lavatories, in accordance with Part F of the 
Accomplishment Instructions of Bombardier Service Bulletin 670BA-25-
101, Revision B, dated January 12, 2017.

(h) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York 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 ACO, send it 
to ATTN: Program Manager, Continuing Operational Safety, FAA, New 
York ACO Branch, 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 
Branch, 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.

(i) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2016-20R1, dated February 3, 2017, 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-2017-0810.
    (2) For more information about this AD, contact Assata 
Dessaline, Aerospace Engineer, Avionics and Administrative Services 
Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, 
Westbury, NY 11590; telephone: 516-228-7301; 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; Widebody Customer Response Center 
North America toll-free telephone: 1-866-538-1247 or direct-dial 
telephone: 1-514-855-2999; fax: 514-855-7401; email: 
[email protected]; Internet: http://www.bombardier.com. You 
may view this 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.

    Issued in Renton, Washington, on August 31, 2017.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-19304 Filed 9-12-17; 8:45 am]
 BILLING CODE 4910-13-P