DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2016-9299; Directorate Identifier 2016-NM-119-AD;
Amendment 39-18851; AD 2017-08-02]
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: We are adopting a new airworthiness directive (AD) for
certain
Bombardier, Inc., Model DHC-8-102, -103, and -106 airplanes; and Model
DHC-8-200 and DHC-8-300 series airplanes. This AD was prompted by
reports of incorrect installation of the auto-ignition system due to
crossed wires at one of the splices in the auto-relight system. This AD
requires inspecting the auto-ignition system for correct wiring, and
doing corrective actions if necessary. We are issuing this AD to
address the unsafe condition on these products.
DATES: This AD is effective May 17, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of May 17,
2017.
ADDRESSES: For service information identified in this final rule,
contact Bombardier, Inc., Q-Series Technical Help Desk, 123 Garratt
Boulevard, Toronto, Ontario M3K 1Y5, Canada; telephone 416-375-4000;
fax 416-375-4539; email thd.qseries@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-2016-9299.
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-2016-
9299; 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: Norman Perenson, Aerospace Engineer,
Propulsion and Services Branch, ANE-173, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7337; 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 DHC-8-102, -103, and -106 airplanes; and Model DHC-8-200 and DHC-
8-300 series airplanes. The NPRM published in the Federal Register on
October 26, 2016 (81 FR 74360) (``the NPRM''). The NPRM was prompted by
reports of incorrect installation of the auto-ignition system due to
crossed wires at one of the splices in the auto-relight system. The
NPRM proposed to require inspecting the auto-ignition system for
correct wiring, and doing corrective actions if necessary. We are
issuing this AD to detect and correct incorrect wiring of the auto-
ignition system, which could result in inability to restart the engine
in flight and consequent reduced controllability of the airplane.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2013-36, dated November 19, 2013 (referred to after this as the
Mandatory Continuing Airworthiness Information, or ``the MCAI''), to
correct an unsafe condition for certain Bombardier, Inc., Model DHC-8-
102, -103, and -106 airplanes; and Model DHC-8-200 and DHC-8-300 series
airplanes. The MCAI states:
There have been reports of incorrect installation of the auto-
ignition system introduced by MS [ModSum] 8Q100813 of SB [Service
Bulletin] 8-74-02, where wires crossed at one of the splices in the
auto-relight system. The incorrect wire installation may result in
the inability to achieve an in-flight engine relight when the
ignition switch is selected in the AUTO position.
Bombardier has issued SB 8-74-05 to introduce an inspection to
check for correct wiring connection and rectification as required.
This [Canadian] AD mandates incorporation of Bombardier SB 8-74-05.
Corrective actions include reconnecting any incorrect wiring of the
auto-ignition system and performing a functional test. 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-2016-9299.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comment received. The Air Line Pilots
Association, International (ALPA) 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
We reviewed Bombardier Service Bulletin 8-74-05, Revision B, dated
April 14, 2014. This service information describes procedures for
inspecting the auto-ignition system for correct wiring, and doing
corrective actions that include rewiring if needed, followed by a
functional test of the auto-ignition system. 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 88 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
|
Inspection |
1 work-hour x $85 per hour =
$85 |
$0
|
$85
|
$7,480
|
In addition, we estimate that any
necessary corrective actions will
take about 2 work-hours, for a cost of $170 per product. We have no way
of determining the number of aircraft that might need these actions.
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):
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