AD 2017-14-02
final rule
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bombardier Inc. | DHC-8-401 | Airworthiness Directives; Bombardier, Inc., Airplanes |
| aircraft | Bombardier Inc. | DHC-8-402 | Airworthiness Directives; Bombardier, Inc., Airplanes |
Unsafe Condition
An obstruction caused by the non-flying pilot's shoe placed between the rudder pedal and the newly installed wiring shroud could prevent rudder pedal movement, potentially resulting in loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect to determine if wiring shrouds are present. Modify the wiring shrouds if necessary to eliminate potential for obstruction.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bombardier, Inc., Model DHC-8-401 and DHC-8-402 airplanes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-401 and DHC-8-402 airplanes. This AD was prompted by a report that a pilot was unable to move the rudder pedal due to an obstruction. This AD requires an inspection to determine if wiring shrouds are present, and modifying the wiring shrouds if necessary. We are issuing this AD to address the unsafe condition on these products.
Applicability Source Text
Show captured applicability text from the source AD
(c) Applicability
This AD applies to Bombardier, Inc., Model DHC-8-401 and DHC-8-
402 airplanes, certificated in any category, as identified in
Bombardier Service Bulletin 84-25-169, Revision B, dated February
17, 2017.
Document Text
Show stored source text (verify against official source)
[Federal Register Volume 82, Number 128 (Thursday, July 6, 2017)]
[Rules and Regulations]
[Pages 31250-31252]
From the Federal Register Online via the Government Publishing Office [<a href="http://www.gpo.gov">www.gpo.gov</a>]
[FR Doc No: 2017-13950]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2017-0125; Directorate Identifier 2016-NM-193-AD;
Amendment 39-18946; AD 2017-14-02]
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 DHC-8-401 and DHC-8-402 airplanes. This AD was
prompted by a report that a pilot was unable to move the rudder pedal
due to an obstruction. This AD requires an inspection to determine if
wiring shrouds are present, and modifying the wiring shrouds if
necessary. We are issuing this AD to address the unsafe condition on
these products.
DATES: This AD is effective August 10, 2017.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of August 10,
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 <a href="/cdn-cgi/l/email-protection#33475b571d424056415a5640735256415c1d515c5e515241575a56411d505c5e"><span class="__cf_email__" data-cfemail="97e3fff3b9e6e4f2e5fef2e4d7f6f2e5f8b9f5f8faf5f6e5f3fef2e5b9f4f8fa">[email protected]</span></a>; Internet
<a href="http://www.bombardier.com">http://www.bombardier.com</a>. 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 <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating
Docket No. FAA-2017-0125.
Examining the AD Docket
You may examine the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2017-
0125; 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: Cesar 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:
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-8-401 and DHC-8-402 airplanes. The NPRM published in the
Federal Register on March 2, 2017 (82 FR 12301). The NPRM was prompted
by a report that a pilot was unable to move the rudder pedal due to an
obstruction. The NPRM proposed to require an inspection to determine if
wiring shrouds are present, and modifying the wiring shrouds if
necessary. We are issuing this AD to prevent an obstruction that could
prevent rudder pedal movement during critical phases of flight or
ground operations, potentially resulting in loss of control of the
airplane.
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian AD CF-2016-27, dated
September 14, 2016 (referred to after this as the Mandatory Continuing
Airworthiness Information, or ``the MCAI''), to correct an unsafe
condition for certain Bombardier, Inc., Model DHC-8-401 and DHC-8-402
airplanes. The MCAI states:
An operator reported that the flying pilot was unable to move
the rudder pedal due to an obstruction caused by the non-flying
pilot's foot. The shoe belonging to the non-flying pilot was placed
between the rudder pedal and the newly installed wiring shroud and
prevented rudder pedal movement. The wiring shroud was installed to
support the wire harnesses installed below the cockpit instrument
panel.
If not corrected, this condition could prevent rudder movement
during critical phases of flight or ground operation, and result in
loss of control of the aeroplane.
This [Canadian] AD was issued to re-work the wiring shrouds to
eliminate potential for obstruction.
You may examine the MCAI in the AD docket on the Internet at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket No. FAA-2017-
0125.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the NPRM and
the FAA's response to each comment.
Support for the NPRM
The Air Line Pilots Association, International, stated that it
supports the NPRM.
Request To Refer to Updated Service Information and Provide Credit
Horizon Air requested that we revise the proposed AD to refer to
the newest version of the service information, Bombardier Service
Bulletin 84-25-169, Revision B, dated February 17, 2017. Horizon Air
also asked that we provide credit for previous actions done using
Bombardier Service Bulletin 84-25-169, Revision A, dated April 25,
2016.
We agree with the commenter's requests. We have determined that the
new service information does not require any additional actions for
airplanes modified using Revision A. We have revised this AD to refer
to Bombardier Service Bulletin 84-25-169, Revision B, dated February
17, 2017. We have also added paragraph (h) to this AD to provide credit
for previous actions and redesignated subsequent paragraphs
accordingly.
[[Page 31251]]
Request To Reference Only the Actions Required for Compliance
Horizon Air requested that we revise the requirements of the
proposed AD to mandate only the actions in paragraph 3.B.,
``Procedure'' of the Accomplishment Instructions of Bombardier Service
Bulletin 84-25-169, Revision B, dated February 17, 2017, rather than
the entire Accomplishment Instructions. Horizon Air explained that
requiring the job set-up and close-out sections of the service
information restricts an operator's ability to perform other
maintenance at the same time as incorporating the service information.
We agree with the commenter's request because it provides operators
additional flexibility, while still ensuring the unsafe condition is
corrected. We have revised paragraph (g) of this AD accordingly.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
this AD with the changes described previously and minor editorial
changes. We have determined that these minor changes:
<bullet> Are consistent with the intent that was proposed in the
NPRM for correcting the unsafe condition; and
<bullet> Do not add any additional burden upon the public than was
already proposed in the NPRM.
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of this AD.
Related Service Information Under 1 CFR Part 51
We reviewed Bombardier Service Bulletin 84-25-169, Revision B,
dated February 17, 2017. This service information describes procedures
for an inspection to verify if wiring shrouds are installed, and
modification of any existing wiring shrouds. 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 82 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
----------------------------------------------------------------------------------------------------------------
Inspection......................... 1 work-hour x $85 per hour $0 $85 $6,970
= $85.
----------------------------------------------------------------------------------------------------------------
We estimate the following costs to do any necessary modifications
that would be required based on the results of the inspection. We have
no way of determining the number of aircraft that might need these
modifications:
On-Condition Costs
----------------------------------------------------------------------------------------------------------------
Cost per
Action Labor cost Parts cost product
----------------------------------------------------------------------------------------------------------------
Modification of wiring shrouds............. 7 work-hours x $85 per hour = $595. $71 $666
----------------------------------------------------------------------------------------------------------------
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
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):
2017-14-02 Bombardier, Inc.: Amendment 39-18946; Docket No. FAA-
2017-0125; Directorate Identifier 2016-NM-193-AD.
(a) Effective Date
This AD is effective August 10, 2017.
(b) Affected ADs
None.
[[Page 31252]]
(c) Applicability
This AD applies to Bombardier, Inc., Model DHC-8-401 and DHC-8-
402 airplanes, certificated in any category, as identified in
Bombardier Service Bulletin 84-25-169, Revision B, dated February
17, 2017.
(d) Subject
Air Transport Association (ATA) of America Code 25, Equipment/
furnishings.
(e) Reason
This AD was prompted by a report that a pilot was unable to move
the rudder pedal due to an obstruction caused by the non-flying
pilot's foot. We are issuing this AD to prevent an obstruction that
could prevent rudder pedal movement during critical phases of flight
or ground operations, potentially resulting in loss of control of
the airplane.
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Modification of Wiring Shrouds
Within 6 months after the effective date of this AD, do a one-
time inspection to determine if wiring shrouds are installed, in
accordance with paragraph 3.B., ``Procedure,'' of the Accomplishment
Instructions of Bombardier Service Bulletin 84-25-169, Revision B,
dated February 17, 2017.
(1) If the airplane does not have wiring shrouds installed, no
further action is required by this AD.
(2) If the airplane has wiring shrouds installed, before further
flight, modify the wiring shrouds in accordance with paragraph 3.B.,
``Procedure,'' of the Accomplishment Instructions of Bombardier
Service Bulletin 84-25-169, Revision B, dated February 17, 2017.
Note 1 to paragraph (g) of this AD: Installation of wiring
shrouds was provided in Bombardier Modification Summary Package
(ModSum) IS4Q2500035-1, Revision A, dated July 26, 2011; Revision B,
dated October 10, 2013; Revision C, dated March 26, 2014; or
Revision D, dated February 26, 2016; or ModSum IS4Q2500035-2,
Revision A, dated July 26, 2011; Revision B, dated October 10, 2013;
Revision C, dated March 26, 2014; or Revision D, dated February 26,
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 84-25-169,
Revision A, dated April 25, 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 manager of 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 AD CF-2016-27, dated September 14, 2016, for related
information. This MCAI may be found in the AD docket on the Internet
at <a href="http://www.regulations.gov">http://www.regulations.gov</a> by searching for and locating Docket
No. FAA-2017-0125.
(2) For more information about this AD, contact Cesar 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) 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 84-25-169, Revision B, dated
February 17, 2017.
(ii) Reserved.
(3) For service information identified in this AD, 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 <a href="/cdn-cgi/l/email-protection#d3a7bbb7fda2a0b6a1bab6a093b2b6a1bcfdb1bcbeb1b2a1b7bab6a1fdb0bcbe"><span class="__cf_email__" data-cfemail="e6928e82c8979583948f8395a687839489c884898b848794828f8394c885898b">[email protected]</span></a>; Internet
<a href="http://www.bombardier.com">http://www.bombardier.com</a>.
(4) 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.
(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: <a href="http://www.archives.gov/federal-register/cfr/ibr-locations.html">http://www.archives.gov/federal-register/cfr/ibr-locations.html</a>.
Issued in Renton, Washington, on June 23, 2017.
Chris Spangenberg,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2017-13950 Filed 7-5-17; 8:45 am]
BILLING CODE 4910-13-P
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2019-15-09 Recurring
final ruleAirworthiness Directives; Bombardier, Inc., Airplanes
Unsafe Condition: cracking of the outboard spoiler actuator mounting brackets, which could cause inoperability or jam of a single spoiler panel and possible jam of the aileron circuit.
2018-22-03
final ruleAirworthiness Directives; Bombardier, Inc., Airplanes
Unsafe Condition: Cracked and corroded barrel nuts, part number DSC228-12, at the mid-spar location of the horizontal-stabilizer-to-vertical-stabilizer attachment joint due to inadequate cadmium plating, which could...
2018-20-18
final ruleAirworthiness Directives; Bombardier, Inc., Airplanes
Unsafe Condition: Faulty switches in the power lever module could result in uncommanded deployment of the ground spoilers and a possible runway excursion.
2018-17-17
final ruleAirworthiness Directives; Bombardier, Inc., Airplanes
Unsafe Condition: Loose windshield heater terminal lugs could create sparks that lead to burning of the lugs and, due to the excessive heat, cracking of the windshields. If not corrected, such a condition could caus...