82 FR 45703 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 189 (October 2, 2017)

Page Range		45703-45705
FR Document		2017-20824
We are adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model DHC-8-400 series airplanes. This AD was prompted by the failure of the fire control amplifier (FCA), which was likely caused by an electrical short in a discharged squib for a fire extinguishing bottle. This AD requires replacing certain circuit breakers. We are issuing this AD to address the unsafe condition on these products.
Federal Register, Volume 82 Issue 189 (Monday, October 2, 2017)
[Federal Register Volume 82, Number 189 (Monday, October 2, 2017)]
[Rules and Regulations]
[Pages 45703-45705]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-20824]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0518; Product Identifier 2016-NM-167-AD; Amendment 
39-19064; AD 2017-20-07]
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-8-400 series airplanes. This AD was 
prompted by the failure of the fire control amplifier (FCA), which was 
likely caused by an electrical short in a discharged squib for a fire 
extinguishing bottle. This AD requires replacing certain circuit 
breakers. We are issuing this AD to address the unsafe condition on 
these products.

DATES: This AD is effective November 6, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of November 6, 
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 [email protected]; Internet 
http://www.bombardier.com. You may view this referenced 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. It is also available on the Internet at 
http://www.regulations.gov by searching for and locating Docket No. 
FAA-2017-0518.

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-
0518; 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 DHC-8-400 series airplanes. The NPRM published in the Federal 
Register on June 2, 2017 (82 FR 25554) (``the NPRM''). The NPRM was 
prompted by the failure of the FCA, which was likely

[[Page 45704]]

caused by an electrical short in a discharged squib for a fire 
extinguishing bottle. The NPRM proposed to require replacing certain 
circuit breakers. We are issuing this AD to prevent failure of the FCA 
and subsequent discharge of fire extinguishing bottles and false fire 
indications, leaving the flight crew with reduced firefighting 
capability in the event of a fire.
    Transport Canada Civil Aviation (TCCA), which is the aviation 
authority for Canada, has issued Canadian Airworthiness Directive CF-
2016-25, dated August 22, 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-8-400 series 
airplanes. The MCAI states:

    An operator reported having a false SMOKE warning light for the 
Aft Baggage compartment, which caused the pilots to discharge the 
Aft Baggage compartment fire extinguishing bottles per Aircraft 
Flight Manual procedures. Subsequently, there were continuous engine 
and Auxiliary Power Unit (APU) fire warning lights, and the fire 
extinguishing bottles for both engines (forward and aft) and the APU 
were automatically discharged. Post event investigation of the Fire 
Control Amplifier (FCA) revealed a burnt 2600-P2 connector. The FCA 
was also found to have sustained significant thermal damage. In a 
separate event involving a different operator, several fire 
extinguishing bottles discharged after an electrical short was 
introduced into the FCA by a shorted squib tester (external ground 
support equipment) during maintenance.
    The FCA manufacturer has identified the most likely failure 
condition to be an electrical short at the discharged squib. The 
squib's burst disk may have caused a short circuit of the 
bridgewires, which caused the FCA's internal power wires to 
experience thermal damage, consequently powering other squibs and 
fire alarm lines and resulting in the uncommanded discharge of the 
fire extinguishing bottles and false fire indications.
    Bombardier (BA) has issued service bulletin (SB) 84-26-16 to 
change two 7.5 amp circuit breakers to lower current rating 1 amp 
circuit breakers to prevent damage to squib discharge circuits and 
the inadvertent discharge of fire extinguishing bottles.
    This [Canadian] AD mandates the incorporation of [Bombardier] SB 
84-26-16 to prevent the inadvertent discharge of fire extinguishing 
bottles [leaving the flight crew with reduced firefighting 
capability in the event of a fire].

    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-
0518.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Conclusion

    We reviewed the relevant data 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 84-26-16, Revision A, 
dated February 12, 2016. This service information describes procedures 
for locating and replacing certain 7.5-amp circuit breakers with 1-amp 
circuit breakers. 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 53 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
----------------------------------------------------------------------------------------------------------------
Replacement of circuit breakers.......  3 work-hours x $85 per                $0            $255         $13,515
                                         hour = $255.
----------------------------------------------------------------------------------------------------------------

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 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.

[[Page 45705]]

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):

2017-20-07 Bombardier, Inc.: Amendment 39-19064; Docket No. FAA-
2017-0518; Product Identifier 2016-NM-167-AD.

(a) Effective Date

    This AD is effective November 6, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bombardier, Inc., Model DHC-8-400, -401, and 
-402 airplanes, certificated in any category, serial numbers 4001, 
and 4003 through 4504 inclusive.

(d) Subject

    Air Transport Association (ATA) of America Code 26, Fire 
protection.

(e) Reason

    This AD was prompted by the failure of the fire control 
amplifier (FCA), which was likely caused by an electrical short in a 
discharged squib for a fire extinguishing bottle. We are issuing 
this AD to prevent failure of the FCA and subsequent discharge of 
fire extinguishing bottles and false fire indications, leaving the 
flight crew with reduced firefighting capability in the event of a 
fire.

(f) Compliance

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

(g) Replacement of Affected Circuit Breakers

    Within 6,000 flight hours or 3 years, whichever occurs first, 
after the effective date of this AD: Replace the 7.5-amp circuit 
breakers specified in Bombardier Service Bulletin 84-26-16, Revision 
A, dated February 12, 2016, with 1-amp circuit breakers having part 
number MS3320-1, in accordance with the Accomplishment Instructions 
of Bombardier Service Bulletin 84-26-16, Revision A, dated February 
12, 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 84-26-16, dated 
August 14, 2015.

(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 Airworthiness Directive CF-2016-25, dated August 22, 
2016, 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-2017-0518.
    (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) 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 84-26-16, Revision A, dated 
February 12, 2016.
    (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 [email protected]; Internet 
http://www.bombardier.com.
    (4) 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.
    (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 Renton, Washington, on September 20, 2017.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2017-20824 Filed 9-29-17; 8:45 am]
BILLING CODE 4910-13-P
Federal Register / Vol. 82, No. 189 / Monday, October 2, 2017 / Rules and Regulations 45703

TABLE 1 TO PARAGRAPH (g) OF THIS Renton, WA 98057–3356; telephone 425– discharged squib for a fire extinguishing
227–1137; fax 425–227–1149. bottle. This AD requires replacing
AD—APPLICABLE SECTIONS OF
(3) Service information identified in this
DASSAULT SERVICE BULLETIN 7X– certain circuit breakers. We are issuing
AD that is not incorporated by reference is
056, REVISION 1, DATED JULY 20, this AD to address the unsafe condition
available at the addresses specified in
on these products.
2016 paragraphs (k)(3) and (k)(4) of this AD.
DATES: This AD is effective November 6,
(k) Material Incorporated by Reference 2017.
Dassault Service
Bulletin 7X–056 Excluded (1) The Director of the Federal Register The Director of the Federal Register
section approved the incorporation by reference approved the incorporation by reference
(IBR) of the service information listed in this of a certain publication listed in this AD
7X–056–1 .............. Post-mod M876. paragraph under 5 U.S.C. 552(a) and 1 CFR as of November 6, 2017.
7X–056–2 .............. Post-mod M897. part 51.
7X–056–3 .............. Post-mod M900. (2) You must use this service information ADDRESSES: For service information
7X–056–4 .............. S/Ns 132 through 215 as applicable to do the actions required by identified in this final rule, contact
inclusive. this AD, unless this AD specifies otherwise. Bombardier, Inc., Q-Series Technical
7X–056–5 .............. Post-mod M954. (i) Dassault Service Bulletin 7X–056, Help Desk, 123 Garratt Boulevard,
7X–056–6 .............. Post-mod M980. Revision 1, dated July 20, 2016. Toronto, Ontario M3K 1Y5, Canada;
7X–056–7 .............. Post-mod M1021. (ii) Reserved. telephone 416–375–4000; fax 416–375–
7X–056–8 .............. None. (3) For service information identified in 4539; email thd.qseries@
this AD, contact Dassault Falcon Jet
aero.bombardier.com; Internet http://
(h) Credit for Previous Actions Corporation, Teterboro Airport, P.O. Box
2000, South Hackensack, NJ 07606; www.bombardier.com. You may view
This paragraph provides credit for actions telephone 201–440–6700; Internet http:// this referenced service information at
required by paragraph (g) of this AD, if those www.dassaultfalcon.com. the FAA, Transport Standards Branch,
actions were performed before the effective (4) You may view this service information 1601 Lind Avenue SW., Renton, WA.
date of this AD using Dassault Service at the FAA, Transport Standards Branch, For information on the availability of
Bulletin 7X–056, issued October 30, 2014. 1601 Lind Avenue SW., Renton, WA. For this material at the FAA, call 425–227–
(i) Other FAA AD Provisions information on the availability of this 1221. It is also available on the Internet
material at the FAA, call 425–227–1221. at http://www.regulations.gov by
The following provisions also apply to this (5) You may view this service information
AD: searching for and locating Docket No.
that is incorporated by reference at the
(1) Alternative Methods of Compliance National Archives and Records FAA–2017–0518.
(AMOCs): The Manager, International Administration (NARA). For information on
Section, Transport Standards Branch, FAA, Examining the AD Docket
the availability of this material at NARA, call
has the authority to approve AMOCs for this 202–741–6030, or go to: http:// You may examine the AD docket on
AD, if requested using the procedures found www.archives.gov/federal-register/cfr/ibr- the Internet at http://
in 14 CFR 39.19. In accordance with 14 CFR locations.html. www.regulations.gov by searching for
39.19, send your request to your principal and locating Docket No. FAA–2017–
inspector or local Flight Standards District Issued in Renton, Washington, on
September 18, 2017. 0518; or in person at the Docket
Office, as appropriate. If sending information
directly to the International Section, send it Dionne Palermo, Management Facility between 9 a.m.
to the attention of the person identified in Acting Director, System Oversight Division,
and 5 p.m., Monday through Friday,
paragraph (j)(2) of this AD. Information may Aircraft Certification Service. except Federal holidays. The AD docket
be emailed to: 9-ANM-116-AMOC- [FR Doc. 2017–20691 Filed 9–29–17; 8:45 am]
contains this AD, the regulatory
REQUESTS@faa.gov. Before using any evaluation, any comments received, and
BILLING CODE 4910–13–P
approved AMOC, notify your appropriate other information. The street address for
principal inspector, or lacking a principal the Docket Office (telephone 800–647–
inspector, the manager of the local flight 5527) is Docket Management Facility,
standards district office/certificate holding DEPARTMENT OF TRANSPORTATION
U.S. Department of Transportation,
district office.
Federal Aviation Administration Docket Operations, M–30, West
(2) Contacting the Manufacturer: For any
requirement in this AD to obtain corrective
Building Ground Floor, Room W12–140,
actions from a manufacturer, the action must 14 CFR Part 39 1200 New Jersey Avenue SE.,
be accomplished using a method approved Washington, DC 20590.
[Docket No. FAA–2017–0518; Product
by the Manager, International Section, Identifier 2016–NM–167–AD; Amendment FOR FURTHER INFORMATION CONTACT:
Transport Standards Branch, FAA; or the 39–19064; AD 2017–20–07] Assata Dessaline, Aerospace Engineer,
European Aviation Safety Agency (EASA); or Avionics and Administrative Services
Dassault Aviation’s EASA Design RIN 2120–AA64 Section, FAA, New York ACO Branch,
Organization Approval (DOA). If approved by 1600 Stewart Avenue, Suite 410,
the DOA, the approval must include the Airworthiness Directives; Bombardier,
DOA-authorized signature.
Westbury, NY 11590; telephone 516–
Inc., Airplanes
228–7301; fax 516–794–5531.
(j) Related Information AGENCY: Federal Aviation SUPPLEMENTARY INFORMATION:
(1) Refer to Mandatory Continuing Administration (FAA), Department of
Airworthiness Information (MCAI) EASA Transportation (DOT). Discussion
Airworthiness Directive 2016–0230, dated We issued a notice of proposed
ACTION: Final rule.
November 21, 2016, for related information. rulemaking (NPRM) to amend 14 CFR
jstallworth on DSKBBY8HB2PROD with RULES

This MCAI may be found in the AD docket SUMMARY: We are adopting a new part 39 by adding an AD that would
on the Internet at http://www.regulations.gov
by searching for and locating Docket No.
airworthiness directive (AD) for certain apply to certain Bombardier, Inc., Model
FAA–2017–0532. Bombardier, Inc., Model DHC–8–400 DHC–8–400 series airplanes. The NPRM
(2) For more information about this AD, series airplanes. This AD was prompted published in the Federal Register on
contact Tom Rodriguez, Aerospace Engineer, by the failure of the fire control June 2, 2017 (82 FR 25554) (‘‘the
International Section, Transport Standards amplifier (FCA), which was likely NPRM’’). The NPRM was prompted by
Branch, FAA, 1601 Lind Avenue SW., caused by an electrical short in a the failure of the FCA, which was likely

VerDate Sep<11>2014 15:21 Sep 29, 2017 Jkt 244001 PO 00000 Frm 00025 Fmt 4700 Sfmt 4700 E:\FR\FM\02OCR1.SGM 02OCR1
Federal Register / Vol. 82, No. 189 / Monday, October 2, 2017 / Rules and Regulations 45705

Adoption of the Amendment (i) Other FAA AD Provisions 1601 Lind Avenue SW., Renton, WA. For
The following provisions also apply to this information on the availability of this
Accordingly, under the authority material at the FAA, call 425–227–1221.
AD:
delegated to me by the Administrator, (5) You may view this service information
(1) Alternative Methods of Compliance
the FAA amends 14 CFR part 39 as (AMOCs): The Manager, New York ACO that is incorporated by reference at the
follows: Branch, FAA, has the authority to approve National Archives and Records
AMOCs for this AD, if requested using the Administration (NARA). For information on
PART 39—AIRWORTHINESS procedures found in 14 CFR 39.19. In the availability of this material at NARA, call
DIRECTIVES accordance with 14 CFR 39.19, send your 202–741–6030, or go to: http://
request to your principal inspector or local www.archives.gov/federal-register/cfr/ibr-
■ 1. The authority citation for part 39 Flight Standards District Office, as locations.html.
continues to read as follows: appropriate. If sending information directly Issued in Renton, Washington, on
to the manager of the certification office, September 20, 2017.
Authority: 49 U.S.C. 106(g), 40113, 44701.
send it to ATTN: Program Manager,
Dionne Palermo,
§ 39.13 [Amended] Continuing Operational Safety, FAA, New
York ACO Branch, 1600 Stewart Avenue, Acting Director, System Oversight Division,
■ 2. The FAA amends § 39.13 by adding Suite 410, Westbury, NY 11590; telephone Aircraft Certification Service.
the following new airworthiness 516–228–7300; fax 516–794–5531. Before [FR Doc. 2017–20824 Filed 9–29–17; 8:45 am]
directive (AD): using any approved AMOC, notify your BILLING CODE 4910–13–P
appropriate principal inspector, or lacking a
2017–20–07 Bombardier, Inc.: Amendment principal inspector, the manager of the local
39–19064; Docket No. FAA–2017–0518; flight standards district office/certificate
Product Identifier 2016–NM–167–AD. DEPARTMENT OF TRANSPORTATION
holding district office.
(a) Effective Date (2) Contacting the Manufacturer: For any Federal Aviation Administration
requirement in this AD to obtain corrective
This AD is effective November 6, 2017.
actions from a manufacturer, the action must
(b) Affected ADs be accomplished using a method approved 14 CFR Part 39
None. by the Manager, New York ACO Branch, [Docket No. FAA–2016–9522; Product
FAA; or Transport Canada Civil Aviation Identifier 2016–NM–144–AD; Amendment
(c) Applicability (TCCA); or Bombardier, Inc.’s TCCA Design 39–19065; AD 2017–20–08]
This AD applies to Bombardier, Inc., Approval Organization (DAO). If approved by
Model DHC–8–400, –401, and –402 the DAO, the approval must include the RIN 2120–AA64
airplanes, certificated in any category, serial DAO-authorized signature.
numbers 4001, and 4003 through 4504 Airworthiness Directives; Gulfstream
(j) Related Information
inclusive. Aerospace Corporation Airplanes
(1) Refer to Mandatory Continuing
(d) Subject Airworthiness Information (MCAI) Canadian AGENCY: Federal Aviation
Air Transport Association (ATA) of Airworthiness Directive CF–2016–25, dated Administration (FAA), DOT.
America Code 26, Fire protection. August 22, 2016, for related information. ACTION: Final rule.
This MCAI may be found in the AD docket
(e) Reason on the Internet at http://www.regulations.gov SUMMARY: We are superseding
This AD was prompted by the failure of the by searching for and locating Docket No. Airworthiness Directive (AD) 2009–17–
fire control amplifier (FCA), which was likely FAA–2017–0518. 01, which applied to certain Gulfstream
caused by an electrical short in a discharged (2) For more information about this AD,
Model G–IV, GIV–X, GV–SP airplanes
squib for a fire extinguishing bottle. We are contact Assata Dessaline, Aerospace
Engineer, Avionics and Administrative and Model GV airplanes. AD 2009–17–
issuing this AD to prevent failure of the FCA
Services Section, FAA, New York ACO 01 required an inspection for sealant
and subsequent discharge of fire
extinguishing bottles and false fire Branch, 1600 Stewart Avenue, Suite 410, applied to the exterior of the auxiliary
indications, leaving the flight crew with Westbury, NY 11590; telephone 516–228– power unit (APU) enclosure (firewall),
reduced firefighting capability in the event of 7301; fax 516–794–5531. and a revision of the airplane flight
a fire. (3) Service information identified in this manual (AFM), as applicable. This AD
AD that is not incorporated by reference is requires revising the AFM and revising
(f) Compliance available at the addresses specified in the applicability to include additional
Comply with this AD within the paragraphs (k)(3) and (k)(4) of this AD.
airplanes. This AD was prompted by a
compliance times specified, unless already (k) Material Incorporated by Reference report indicating that the type design
done.
(1) The Director of the Federal Register sealant applied to the APU enclosure
(g) Replacement of Affected Circuit Breakers approved the incorporation by reference failed certain tests. We are issuing this
Within 6,000 flight hours or 3 years, (IBR) of the service information listed in this AD to address the unsafe condition on
whichever occurs first, after the effective date paragraph under 5 U.S.C. 552(a) and 1 CFR these products.
of this AD: Replace the 7.5-amp circuit part 51. DATES: This AD is effective November 6,
breakers specified in Bombardier Service (2) You must use this service information
as applicable to do the actions required by
2017.
Bulletin 84–26–16, Revision A, dated
this AD, unless this AD specifies otherwise. The Director of the Federal Register
February 12, 2016, with 1-amp circuit
breakers having part number MS3320–1, in (i) Bombardier Service Bulletin 84–26–16, approved the incorporation by reference
accordance with the Accomplishment Revision A, dated February 12, 2016. of certain publications listed in this AD
Instructions of Bombardier Service Bulletin (ii) Reserved. as of November 6, 2017.
84–26–16, Revision A, dated February 12, (3) For service information identified in ADDRESSES: For service information
jstallworth on DSKBBY8HB2PROD with RULES

2016. this AD, contact Bombardier, Inc., Q-Series identified in this final rule, contact
Technical Help Desk, 123 Garratt Boulevard,
(h) Credit for Previous Actions Gulfstream Aerospace Corporation,
Toronto, Ontario M3K 1Y5, Canada;
This paragraph provides credit for actions telephone 416–375–4000; fax 416–375–4539; Technical Publications Dept., P.O. Box
required by paragraph (g) of this AD, if those email thd.qseries@aero.bombardier.com; 2206, Savannah, GA 31402–2206;
actions were performed before the effective Internet http://www.bombardier.com. telephone 800–810–4853; fax 912–965–
date of this AD using Bombardier Service (4) You may view this service information 3520; email pubs@gulfstream.com;
Bulletin 84–26–16, dated August 14, 2015. at the FAA, Transport Standards Branch, Internet http://www.gulfstream.com/

VerDate Sep<11>2014 15:21 Sep 29, 2017 Jkt 244001 PO 00000 Frm 00027 Fmt 4700 Sfmt 4700 E:\FR\FM\02OCR1.SGM 02OCR1
Document Created: 2017-09-30 04:41:20
Document Modified: 2017-09-30 04:41:20
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Rules and Regulations
Action		Final rule.
Dates		This AD is effective November 6, 2017.
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.
FR Citation		82 FR 45703
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
82 FR 45703 - Airworthiness Directives; Bombardier, Inc., Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 82, Issue 189 (October 2, 2017)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
