[Federal Register Volume 84, Number 130 (Monday, July 8, 2019)]
[Rules and Regulations]
[Pages 32263-32266]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-14415]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0019; Product Identifier 2018-NM-130-AD; Amendment 
39-19657; AD 2019-12-02]
RIN 2120-AA64


Airworthiness Directives; Bombardier, Inc., Airplanes

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

ACTION: Final rule.

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SUMMARY: The FAA is adopting a new airworthiness directive (AD) for 
certain Bombardier, Inc., Model BD-700-1A10 and BD-700-1A11 airplanes. 
This AD was prompted by reports of low clearance between the variable 
frequency generator (VFG) power feeder cables and adjacent hydraulic 
lines and/or fuel lines in the aft equipment bay, which could cause 
chafing damage. This AD requires modifying the routing of the VFG power 
feeder cables and harnesses in the aft equipment bay. The FAA is 
issuing this AD to address the unsafe condition on these products.

DATES: This AD is effective August 12, 2019.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of August 12, 
2019.

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: [email protected]; internet: http://www.bombardier.com. 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. It is also available on the internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0019.

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-2019-
0019; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The address for Docket Operations is 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: Steven Dzierzynski, Aerospace 
Engineer, Avionics and Electrical Systems Services Section, FAA, New 
York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; 
telephone 516-228-7367; fax 516-794-5531; email [email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    The FAA 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 BD-700-1A10 and BD-700-1A11 airplanes. The NPRM published 
in the Federal Register on February 22, 2019 (84 FR 5609). The NPRM was 
prompted by reports of low clearance between the VFG power feeder 
cables and adjacent hydraulic lines and/or fuel lines in the aft 
equipment bay, which could cause chafing damage. The NPRM proposed to 
require modifying the routing of the VFG power feeder cables and 
harnesses in the aft equipment bay.
    The FAA is issuing this AD to address chafing damage in the aft 
equipment bay, which could result in a hydraulic/fuel leak and 
electrical arcing as an ignition source, and could cause an in-flight 
fire.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian AD CF-2018-22, dated August 
2, 2018 (referred to after this as the Mandatory Continuing 
Airworthiness Information, or ``the MCAI''), to correct an unsafe 
condition for certain Bombardier, Inc., Model BD-700-1A10 and BD-700-
1A11 airplanes. The MCAI states:

    Several aircraft have been discovered with low clearance between 
the Variable Frequency Generator (VFG) cables and hydraulic/fuel 
lines in the Aft Equipment Bay which may lead to chafing between the 
VFG cables and the hydraulic/fuel lines. Chafing may result in 
damage that could lead to a hydraulic/fuel leak and electrical 
arcing as an ignition source. This condition, if not corrected, 
could result in an in-flight fire.
    This [Canadian] AD mandates a modification to the routing of the 
VFG power feeder cables and harnesses, to ensure the required 
clearance between the VFG cables and hydraulic/fuel lines in the Aft 
Equipment Bay.
    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-2019-
0019.

Comments

    The FAA gave the public the opportunity to participate in 
developing this final rule. The following presents the comment received 
on the NPRM and the FAA's response.

Request To Refer to Revised Service Information

    Flexjet stated that the routing modification in the proposed AD 
refers to ``outdated Service Bulletins SB 700-24-089 R1, SB 700-24-6014 
R1, 700-1A11-24-028 R1 [and] 700-24-5014 R1.'' Flexjet added that on 
September 27, 2018, all service information referenced in the NPRM was 
updated to Revision 2. Flexjet noted that Revision 2 of the service 
information merely clarifies certain procedures.
    The FAA infers that the commenter is asking that this AD refer to 
the following Bombardier service information as the appropriate source 
for accomplishing the required actions:
     Service Bulletin 700-24-089, Revision 02, dated September 
27, 2018.
     Service Bulletin 700-24-6014, Revision 02, dated September 
27, 2018.
     Service Bulletin 700-1A11-24-028, Revision 02, dated 
September 27, 2018.
     Service Bulletin 700-24-5014, Revision 02, dated September 
27, 2018.
    The FAA agrees with the commenter's request. The FAA has included 
the Bombardier service information listed above as the appropriate 
source of service information for accomplishing the required actions. 
The FAA has determined that no additional work is required for 
airplanes that have accomplished the actions specified in Revision 01 
of the referenced service information. Revision 02 of the referenced 
service information clarifies the language in certain steps and adds 
notes to certain steps. The FAA has added Revision 01 of the referenced 
service information to paragraphs (h)(1) and (h)(2) of this AD to 
provide credit for actions done before the effective date of this AD.

[[Page 32264]]

Conclusion

    The FAA reviewed the relevant data, considered the comment 
received, and determined that air safety and the public interest 
require adopting this final rule with the changes described previously 
and minor editorial changes. The FAA has determined that these minor 
changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    The FAA also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this final 
rule.

Related Service Information Under 1 CFR Part 51

    Bombardier has issued the following service information for 
Bombardier, Inc. Model BD-700-1A10 airplanes.
     Service Bulletin 700-24-089, Revision 02, dated September 
27, 2018.
     Service Bulletin 700-24-6014, Revision 02, dated September 
27, 2018.
    Bombardier has issued the following service information for 
Bombardier, Inc. Model BD-700-1A11 airplanes.
     Service Bulletin 700-1A11-24-028, Revision 02, dated 
September 27, 2018.
     Service Bulletin 700-24-5014, Revision 02, dated September 
27, 2018.
    This service information describes procedures for modifying the 
routing of the VFG power feeder cables and harnesses in the aft 
equipment bay to ensure the required clearance between the cables and 
the hydraulic lines and/or fuel lines. These documents are distinct 
since they apply to different airplane models and configurations.
    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

    The FAA estimates that this AD affects 112 airplanes of U.S. 
registry. The FAA estimates the following costs to comply with this AD:

                                      Estimated Costs for Required Actions
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           Labor cost                    Parts cost              Cost per product       Cost on  U.S. operators
----------------------------------------------------------------------------------------------------------------
Up to 5 work[dash]hours x $85    Up to $606...............  Up to $1,031.............  Up to $115,472.
 per hour = Up to $425.
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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.
    The FAA is 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 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 and 
associated appliances to the Director of the System Oversight Division.

Regulatory Findings

    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) Will not affect intrastate aviation in Alaska, and
    (3) 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):

2019-12-02 Bombardier Inc.: Amendment 39-19657; Docket No. FAA-2019-
0019; Product Identifier 2018-NM-130-AD.

(a) Effective Date

    This AD is effective August 12, 2019.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model BD-700-1A10 and BD-
700-1A11 airplanes, certificated in any category, serial numbers 
9002 through 9831 inclusive, and 9998.

(d) Subject

    Air Transport Association (ATA) of America Code 24, Electrical 
Power.

(e) Reason

    This AD was prompted by reports of low clearance between the 
variable frequency generator (VFG) power feeder cables and adjacent 
hydraulic lines and/or fuel lines in the aft equipment bay, which 
could cause chafing damage. The FAA is issuing this AD to address 
this unsafe condition, which could result in a hydraulic/fuel leak 
and electrical arcing as an ignition source, and could cause an in-
flight fire.

(f) Compliance

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

(g) Routing Modification

    Within 24 months after the effective date of this AD: Modify the 
routing of the VFG

[[Page 32265]]

power feeder cables and harnesses in the aft equipment bay to ensure 
the required clearance between the cables and the hydraulic lines 
and/or fuel lines, in accordance with the Accomplishment 
Instructions of the applicable service information listed in figure 
1 to paragraph (g) of this AD.
[GRAPHIC] [TIFF OMITTED] TR08JY19.000

(h) Credit for Previous Actions

    (1) This paragraph provides credit for the modification required 
by paragraph (g) of this AD for airplanes on which the modification 
specified in Bombardier Service Bulletin 700-24-6014 was performed 
before the effective date of this AD using Bombardier Service 
Request for Product Support Action (SRPSA) 000236314.
    (2) This paragraph provides credit for the modification required 
by paragraph (g) of this AD, if the modification was performed 
before the effective date of this AD using the service information 
specified in paragraphs (h)(2)(i) through (h)(2)(iv) of this AD.
    (i) Bombardier Service Bulletin 700-24-089, dated April 25, 
2018, or Revision 01, dated August 21, 2018.
    (ii) Bombardier Service Bulletin 700-24-6014, dated April 25, 
2018, or Revision 01, dated August 21, 2018.
    (iii) Bombardier Service Bulletin 700-1A11-24-028, dated April 
25, 2018, or Revision 01, dated August 21, 2018.
    (iv) Bombardier Service Bulletin 700-24-5014, dated April 25, 
2018, or Revision 01, dated August 21, 2018.

(i) 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.

(j) Related Information

    (1) Refer to Mandatory Continuing Airworthiness Information 
(MCAI) Canadian AD CF-2018-22, dated August 2, 2018, 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-2019-0019.
    (2) For more information about this AD, contact Steven 
Dzierzynski, Aerospace Engineer, Avionics and Electrical Systems 
Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, 
Suite 410, Westbury, NY 11590; telephone 516-228-7367; fax 516-794-
5531; email [email protected].
    (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 700-1A11-24-028, Revision 02, 
dated September 27, 2018.
    (ii) Bombardier Service Bulletin 700-24-089, Revision 02, dated 
September 27, 2018.
    (iii) Bombardier Service Bulletin 700-24-5014, Revision 02, 
dated September 27, 2018.
    (iv) Bombardier Service Bulletin 700-24-6014, Revision 02, dated 
September 27, 2018.
    (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: [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.

[[Page 32266]]

    (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 Des Moines, Washington, on June 18, 2019.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2019-14415 Filed 7-5-19; 8:45 am]
 BILLING CODE 4910-13-P