Airworthiness Directives; Bombardier, Inc. Airplanes, 60060-60062 [2012-24174]
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60060
Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–1003; Directorate
Identifier 2012–NM–064–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to adopt a new
airworthiness directive (AD) for certain
Bombardier, Inc. Model DHC–8–400
series airplanes. This proposed AD was
prompted by reports of engine fire/
overheat detector assemblies advance
pneumatic detectors (APDs) failing to
reset after activation due to permanent
deformation of the detector switch
diaphragm after being exposed to high
temperatures. This proposed AD would
require replacing all three APDs with
new detector assemblies. We are
proposing this AD to prevent a
continued engine fire indication in the
cockpit after the actual fire has been
extinguished, which is misleading and
may influence the pilot to conduct a
potentially hazardous ‘‘off-airport’’
landing.
DATES: We must receive comments on
this proposed AD by November 16,
2012.
ADDRESSES: You may send comments by
any of the following methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: (202) 493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC 20590.
• Hand Delivery: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this proposed 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
thd.qseries@aero.bombardier.com;
Internet https://www.bombardier.com.
You may review copies of the
referenced service information at the
wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
SUMMARY:
VerDate Mar<15>2010
14:57 Oct 01, 2012
Jkt 229001
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.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
www.regulations.gov; or in person at the
Docket Operations office between 9 a.m.
and 5 p.m., Monday through Friday,
except Federal holidays. The AD docket
contains this proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Operations
office (telephone (800) 647–5527) is in
the ADDRESSES section. Comments will
be available in the AD docket shortly
after receipt.
FOR FURTHER INFORMATION CONTACT:
Mazdak Hobbi, Aerospace Engineer,
Propulsion and Services Branch, ANE–
173, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, NY
11590; telephone 516–228–7330; fax
516–794–5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2012–1003; Directorate Identifier
2012–NM–064–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
Discussion
Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2012–07,
dated January 27, 2012 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
There have been engine fires on DHC–8
Series 400 aeroplanes, where the ‘‘ENGINE
FIRE, CHECK FIRE DETECT’’ warning and
‘‘FUEL OFF’’ handle lights failed to reset and
remained illuminated after the fire was
extinguished. An investigation has revealed
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that the existing engine fire/overheat detector
assemblies ‘‘Advance Pneumatic Detectors
(APD)’’ may fail to reset after activation due
to permanent deformation of the detector
switch diaphragm after being exposed to high
temperatures.
This abnormal condition of a continued
engine fire indication in the cockpit, after the
actual fire has been extinguished, is
misleading and may influence the pilot’s
decision to conduct a potentially hazardous
‘‘off-airport’’ landing, which is considered an
unsafe condition that warrants mitigating
action.
To mitigate this potentially hazardous
condition, Bombardier has issued multiple
service bulletins (SBs) [Bombardier Service
Bulletins 84–26–08, Revision A, dated May
12, 2011; 84–26–09, Revision A, dated May
12, 2011; and 84–26–12, Revision A, dated
December 13, 2011] to replace all three
affected APDs with new detector assemblies
that are not susceptible to the subject
diaphragm deformation when exposed to
excessive heat. * * *
You may obtain further information
by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier, Inc. has issued Service
Bulletins 84–26–08, Revision A, dated
May 12, 2011; 84–26–09, Revision A,
dated May 12, 2011; and 84–26–12,
Revision A, dated December 13, 2011.
The actions described in this service
information are intended to correct the
unsafe condition identified in the
MCAI.
FAA’s Determination and Requirements
of This Proposed AD
This product has been approved by
the aviation authority of another
country, and is approved for operation
in the United States. Pursuant to our
bilateral agreement with the State of
Design Authority, we have been notified
of the unsafe condition described in the
MCAI and service information
referenced above. We are proposing this
AD because we evaluated all pertinent
information and determined an unsafe
condition exists and is likely to exist or
develop on other products of the same
type design.
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 84 products of U.S. registry.
We also estimate that it would take
about 63 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Required
parts would cost about $5,700 per
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
E:\FR\FM\02OCP1.SGM
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Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
these parts. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
figures, we estimate the cost of the
proposed AD on U.S. operators to be
$928,620, or $11,055 per product.
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.
wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
Regulatory Findings
We determined that this proposed AD
would not have federalism implications
under Executive Order 13132. This
proposed AD would 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 this proposed regulation:
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.
We prepared a regulatory evaluation
of the estimated costs to comply with
this proposed AD and placed it in the
AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
VerDate Mar<15>2010
14:57 Oct 01, 2012
Jkt 229001
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
Bombardier, Inc.: Docket No. FAA–2012–
1003; Directorate Identifier 2012–NM–
064–AD.
(a) Comments Due Date
We must receive comments by November
16, 2012.
(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 through 4373 inclusive.
(d) Subject
Air Transport Association (ATA) of
America Code 26, Fire protection.
(e) Reason
This AD was prompted by reports of
engine fire/overheat detector assemblies
advance pneumatic detectors (APDs) failing
to reset after activation due to permanent
deformation of the detector switch
diaphragm after being exposed to high
temperatures. We are issuing this AD to
prevent a continued engine fire indication in
the cockpit after the actual fire has been
extinguished, which is misleading and may
influence the pilot to conduct a potentially
hazardous ‘‘off-airport’’ landing.
(f) Compliance
You are responsible for having the actions
required by this AD performed within the
compliance times specified, unless the
actions have already been done.
(g) Installation
Within 6,000 flight hours or 30 months
after the effective date of this AD, whichever
occurs first, replace the APDs as specified in
paragraphs (g)(1), (g)(2), and (g)(3) of this AD.
(1) For the nacelle of the engine primary
zone: Remove any APD having part number
(P/N) 10–1098 and install a new APD having
P/N 10–1098–01, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 84–26–08, Revision A, dated
May 12, 2011.
(2) For the nacelle of the landing gear
primary zone: Remove any APD having P/N
10–1097 or 10–1097–01 and install a new
APD having P/N 10–1097–02, in accordance
with the Accomplishment Instructions of
Bombardier Service Bulletin 84–26–09,
Revision A, dated May 12, 2011.
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60061
(3) For the propeller engine controller:
Remove any APD having P/N 10–1096, 10–
1096–01, or 10–1096–02 (serial number is all
numeric characters), and install a new APD
having P/N 10–1096–02 (serial number is
three alpha and four numeric characters), in
accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
84–26–12, Revision A, dated December 13,
2011.
(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 the service information
specified in paragraph (h)(1), (h)(2), or (h)(3)
of this AD.
(1) Bombardier Service Bulletin 84–26–08,
dated March 11, 2011.
(2) Bombardier Service Bulletin 84–26–09,
dated March 11, 2011.
(3) Bombardier Service Bulletin 84–26–12,
dated October 12, 2011.
(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 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. The AMOC
approval letter must specifically reference
this AD.
(2) Airworthy Product: For any requirement
in this AD to obtain corrective actions from
a manufacturer or other source, use these
actions if they are FAA-approved. Corrective
actions are considered FAA-approved if they
are approved by the State of Design Authority
(or their delegated agent). You are required
to assure the product is airworthy before it
is returned to service.
(j) Related Information
(1) Refer to MCAI Transport Canada Civil
Aviation Airworthiness Directive CF–2012–
07, dated January 27, 2012; and the service
bulletins identified in paragraphs (j)(1)(i),
(j)(1)(ii), and (j)(1)(iii) of this AD; for related
information.
(i) Bombardier Service Bulletin 84–26–08,
Revision A, dated May 12, 2011.
(ii) Bombardier Service Bulletin 84–26–09,
Revision A, dated May 12, 2011.
(iii) Bombardier Service Bulletin 84–26–12,
Revision A, dated December 13, 2011.
(2) 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;
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60062
Federal Register / Vol. 77, No. 191 / Tuesday, October 2, 2012 / Proposed Rules
email thd.qseries@aero.bombardier.com;
Internet https://www.bombardier.com. You
may review copies of the 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.
Issued in Renton, Washington, on
September 21, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2012–24174 Filed 10–1–12; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2012–1052; Directorate
Identifier 2012–CE–014–AD]
Examining the AD Docket
RIN 2120–AA64
Airworthiness Directives; Cessna
Aircraft Company Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
We propose to supersede an
existing airworthiness directive (AD)
that applies to certain Cessna Aircraft
Company (Cessna) Models 172R, 172S,
182S, 182T, T182T, 206H, and T206H
airplanes. The existing AD currently
requires an inspection of the engine oil
pressure switch and, if applicable,
replacement of the engine oil pressure
switch. Since we issued that AD, we
have received new reports of internal
failure of the engine oil pressure switch,
which could result in complete loss of
engine oil with consequent partial or
complete loss of engine power or fire.
This proposed AD would increase the
applicability of the AD and place a lifelimit of 3,000 hours time-in-service on
the engine oil pressure switch, requiring
replacement when the engine oil
pressure switch reaches its life limit. We
are proposing this AD to correct the
unsafe condition on these products.
DATES: We must receive comments on
this proposed AD by November 16,
2012.
ADDRESSES: You may send comments,
using the procedures found in 14 CFR
11.43 and 11.45, by any of the following
methods:
• Federal eRulemaking Portal: Go to
https://www.regulations.gov. Follow the
instructions for submitting comments.
• Fax: 202–493–2251.
• Mail: U.S. Department of
Transportation, Docket Operations, M–
wreier-aviles on DSK5TPTVN1PROD with PROPOSALS
SUMMARY:
VerDate Mar<15>2010
14:57 Oct 01, 2012
Jkt 229001
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue SE.,
Washington, DC 20590.
• Hand Delivery: Deliver to Mail
address above between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this proposed AD, contact Cessna
Aircraft Company, Product Support,
P.O. Box 7706, Wichita, Kansas 67277;
telephone: (316) 517–5800; fax (316)
942–9006; Internet: www.cessna.com/
customer-service/technicalpublications.html. You may review
copies of the referenced service
information at the FAA, Small Airplane
Directorate, 901 Locust, Kansas City,
Missouri 64106. For information on the
availability of this material at the FAA,
call (816) 329–4148.
You may examine the AD docket on
the Internet at https://www.regulations.
gov; 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 proposed AD, the
regulatory evaluation, any comments
received, and other information. The
street address for the Docket Office
(phone: 800–647–5527) is in the
ADDRESSES section. Comments will be
available in the AD docket shortly after
receipt.
FOR FURTHER INFORMATION CONTACT: Jeff
Janusz, Sr. Propulsion Engineer, Wichita
Aircraft Certification Office, FAA, 1801
Airport Road, Wichita, KS 67209;
phone: (316) 946–4148; fax: (316) 946–
4107; email: jeff.janusz@faa.gov.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written
relevant data, views, or arguments about
this proposed AD. Send your comments
to an address listed under the
ADDRESSES section. Include ‘‘Docket No.
FAA–2012–1052; Directorate Identifier
2012–CE–014–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD because of those
comments.
We will post all comments we
receive, without change, to https://www.
regulations.gov, including any personal
information you provide. We will also
post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
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Sfmt 4702
Discussion
On February 11, 2000, we issued AD
2000–04–01, amendment 39–11583 (65
FR 8649, February 22, 2000), for certain
Cessna Aircraft Company Models 172R,
172S, 182S, 206H, and T206H airplanes.
That AD requires inspection of the
engine oil pressure switch to determine
if the engine oil pressure switch is partnumber (P/N) 77041 or P/N 83278 and
replacement of any P/N 77041 engine
oil pressure switch with a P/N 83278
engine oil pressure switch. That AD
resulted from reports of failure of the
engine oil pressure switch diaphragm.
We issued that AD to prevent loss of
engine oil through the failure of the
engine oil pressure switch diaphragm,
which could result in partial or
complete loss of engine power.
Actions Since Existing AD Was Issued
Since we issued AD 2000–04–01,
amendment 39–11583 (65 FR 8649,
February 22, 2000), we have received
new reports of internal failure of the
engine oil pressure switch, which could
result in complete loss of engine oil
with consequent partial or complete loss
of engine power or fire.
Relevant Service Information
We reviewed Cessna Service Bulletin
07–79–01, dated January 29, 2007. The
service information describes
procedures for replacement of the
engine oil pressure switch.
FAA’s Determination
We are proposing this AD because we
evaluated all the relevant information
and determined the unsafe condition
described previously is likely to exist or
develop in other products of these same
type designs.
Proposed AD Requirements
This proposed AD would retain none
of the requirements of AD 2000–04–01,
amendment 39–11583 (65 FR 8649,
February 22, 2000). This proposed AD
would increase the applicability
statement of the existing AD and require
an inspection of the engine oil pressure
switch with replacement of the engine
oil pressure switch when it reaches its
life limit of 3,000 hours time-in-service.
We are proposing this AD to correct the
unsafe condition on these products.
Differences Between the Proposed AD
and the Service Information
Applicability in this proposed AD has
been expanded to include additional
airplane serial numbers.
Costs of Compliance
We estimate that this proposed AD
affects 6,155 airplanes of U.S. registry.
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]]>Agencies
[Federal Register Volume 77, Number 191 (Tuesday, October 2, 2012)]
[Proposed Rules]
[Pages 60060-60062]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-24174]
[[Page 60060]]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-1003; Directorate Identifier 2012-NM-064-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for
certain Bombardier, Inc. Model DHC-8-400 series airplanes. This
proposed AD was prompted by reports of engine fire/overheat detector
assemblies advance pneumatic detectors (APDs) failing to reset after
activation due to permanent deformation of the detector switch
diaphragm after being exposed to high temperatures. This proposed AD
would require replacing all three APDs with new detector assemblies. We
are proposing this AD to prevent a continued engine fire indication in
the cockpit after the actual fire has been extinguished, which is
misleading and may influence the pilot to conduct a potentially
hazardous ``off-airport'' landing.
DATES: We must receive comments on this proposed AD by November 16,
2012.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
Fax: (202) 493-2251.
Mail: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC 20590.
Hand Delivery: U.S. Department of Transportation, Docket
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New
Jersey Avenue SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
For service information identified in this proposed 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 thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. You may review copies of the 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.
Examining the AD Docket
You may examine the AD docket on the Internet at https://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains this proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket Operations office (telephone (800) 647-5527) is
in the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Mazdak Hobbi, Aerospace Engineer,
Propulsion and Services Branch, ANE-173, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, NY
11590; telephone 516-228-7330; fax 516-794-5531.
SUPPLEMENTARY INFORMATION:
Comments Invited
We invite you to send any written relevant data, views, or
arguments about this proposed AD. Send your comments to an address
listed under the ADDRESSES section. Include ``Docket No. FAA-2012-1003;
Directorate Identifier 2012-NM-064-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2012-07, dated January 27, 2012 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
There have been engine fires on DHC-8 Series 400 aeroplanes,
where the ``ENGINE FIRE, CHECK FIRE DETECT'' warning and ``FUEL
OFF'' handle lights failed to reset and remained illuminated after
the fire was extinguished. An investigation has revealed that the
existing engine fire/overheat detector assemblies ``Advance
Pneumatic Detectors (APD)'' may fail to reset after activation due
to permanent deformation of the detector switch diaphragm after
being exposed to high temperatures.
This abnormal condition of a continued engine fire indication in
the cockpit, after the actual fire has been extinguished, is
misleading and may influence the pilot's decision to conduct a
potentially hazardous ``off-airport'' landing, which is considered
an unsafe condition that warrants mitigating action.
To mitigate this potentially hazardous condition, Bombardier has
issued multiple service bulletins (SBs) [Bombardier Service
Bulletins 84-26-08, Revision A, dated May 12, 2011; 84-26-09,
Revision A, dated May 12, 2011; and 84-26-12, Revision A, dated
December 13, 2011] to replace all three affected APDs with new
detector assemblies that are not susceptible to the subject
diaphragm deformation when exposed to excessive heat. * * *
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier, Inc. has issued Service Bulletins 84-26-08, Revision A,
dated May 12, 2011; 84-26-09, Revision A, dated May 12, 2011; and 84-
26-12, Revision A, dated December 13, 2011. The actions described in
this service information are intended to correct the unsafe condition
identified in the MCAI.
FAA's Determination and Requirements of This Proposed AD
This product has been approved by the aviation authority of another
country, and is approved for operation in the United States. Pursuant
to our bilateral agreement with the State of Design Authority, we have
been notified of the unsafe condition described in the MCAI and service
information referenced above. We are proposing this AD because we
evaluated all pertinent information and determined an unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 84 products of U.S. registry. We also estimate that
it would take about 63 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Required parts would cost about $5,700 per product. Where
the service information lists required parts costs that are covered
under warranty, we have assumed that there will be no charge for
[[Page 60061]]
these parts. As we do not control warranty coverage for affected
parties, some parties may incur costs higher than estimated here. Based
on these figures, we estimate the cost of the proposed AD on U.S.
operators to be $928,620, or $11,055 per product.
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 proposed AD would not have federalism
implications under Executive Order 13132. This proposed AD would 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 this proposed
regulation:
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.
We prepared a regulatory evaluation of the estimated costs to
comply with this proposed AD and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 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 AD:
Bombardier, Inc.: Docket No. FAA-2012-1003; Directorate Identifier
2012-NM-064-AD.
(a) Comments Due Date
We must receive comments by November 16, 2012.
(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
through 4373 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 26, Fire
protection.
(e) Reason
This AD was prompted by reports of engine fire/overheat detector
assemblies advance pneumatic detectors (APDs) failing to reset after
activation due to permanent deformation of the detector switch
diaphragm after being exposed to high temperatures. We are issuing
this AD to prevent a continued engine fire indication in the cockpit
after the actual fire has been extinguished, which is misleading and
may influence the pilot to conduct a potentially hazardous ``off-
airport'' landing.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Installation
Within 6,000 flight hours or 30 months after the effective date
of this AD, whichever occurs first, replace the APDs as specified in
paragraphs (g)(1), (g)(2), and (g)(3) of this AD.
(1) For the nacelle of the engine primary zone: Remove any APD
having part number (P/N) 10-1098 and install a new APD having P/N
10-1098-01, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 84-26-08, Revision A, dated May 12,
2011.
(2) For the nacelle of the landing gear primary zone: Remove any
APD having P/N 10-1097 or 10-1097-01 and install a new APD having P/
N 10-1097-02, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 84-26-09, Revision A, dated May 12,
2011.
(3) For the propeller engine controller: Remove any APD having
P/N 10-1096, 10-1096-01, or 10-1096-02 (serial number is all numeric
characters), and install a new APD having P/N 10-1096-02 (serial
number is three alpha and four numeric characters), in accordance
with the Accomplishment Instructions of Bombardier Service Bulletin
84-26-12, Revision A, dated December 13, 2011.
(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 the service information specified in paragraph
(h)(1), (h)(2), or (h)(3) of this AD.
(1) Bombardier Service Bulletin 84-26-08, dated March 11, 2011.
(2) Bombardier Service Bulletin 84-26-09, dated March 11, 2011.
(3) Bombardier Service Bulletin 84-26-12, dated October 12,
2011.
(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 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. The AMOC approval letter must specifically reference this
AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(j) Related Information
(1) Refer to MCAI Transport Canada Civil Aviation Airworthiness
Directive CF-2012-07, dated January 27, 2012; and the service
bulletins identified in paragraphs (j)(1)(i), (j)(1)(ii), and
(j)(1)(iii) of this AD; for related information.
(i) Bombardier Service Bulletin 84-26-08, Revision A, dated May
12, 2011.
(ii) Bombardier Service Bulletin 84-26-09, Revision A, dated May
12, 2011.
(iii) Bombardier Service Bulletin 84-26-12, Revision A, dated
December 13, 2011.
(2) 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;
[[Page 60062]]
email thd.qseries@aero.bombardier.com; Internet https://www.bombardier.com. You may review copies of the 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.
Issued in Renton, Washington, on September 21, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-24174 Filed 10-1-12; 8:45 am]
BILLING CODE 4910-13-P
