[Federal Register Volume 83, Number 68 (Monday, April 9, 2018)]
[Rules and Regulations]
[Pages 15045-15048]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2018-06712]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0810; Product Identifier 2017-NM-045-AD; Amendment 
39-19240; AD 2018-07-09]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., 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-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 AD was prompted by a report of a smoke-in-cabin 
event due to a non-sustaining electrical fire. This AD requires 
installation of protective sleeves on the bonding jumper wires of 
affected galleys and lavatories. We are issuing this AD to address the 
unsafe condition on these products.

DATES: This AD is effective May 14, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of May 14, 
2018.

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; 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 referenced 
service information at the FAA, Transport

[[Page 15046]]

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-2017-0810.

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 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: 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:

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), 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 
NPRM published in the Federal Register on September 13, 2017 (82 FR 
42953) (``the NPRM''). The NPRM was prompted by a report of a smoke-in-
cabin event due to a non-sustaining electrical fire. The NPRM proposed 
to require installation of protective sleeves on the bonding jumper 
wires of affected galleys and lavatories. 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.
    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.

Comments

    We gave the public the opportunity to participate in developing 
this final rule. We considered the comment received. The Air Line 
Pilots Association, International supported the NPRM.

Conclusion

    We reviewed the relevant data, considered the comment received, 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 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 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 544 airplanes of U.S. registry.
    We estimate the following costs to comply with this 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

[[Page 15047]]

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 to 
the Director of the System Oversight Division.

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

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):

2018-07-09 Bombardier, Inc.: Amendment 39-19240; Docket No. FAA-
2017-0810; Product Identifier 2017-NM-045-AD.

(a) Effective Date

    This AD is effective May 14, 2018.

(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 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 certification 
office, 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.

(j) 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-25-101, Revision B, dated 
January 12, 2017.
    (ii) Reserved.
    (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.
    (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

[[Page 15048]]

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 March 20, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-06712 Filed 4-6-18; 8:45 am]
 BILLING CODE 4910-13-P


