Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702) Airplanes and Model CL-600-2D24 (Regional Jet Series 900) Airplanes, 75312-75314 [E8-29077]
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Federal Register / Vol. 73, No. 239 / Thursday, December 11, 2008 / Rules and Regulations
Material Incorporated by Reference
(2) For service information identified in
this AD, contact Airbus SAS—Airworthiness
Office—EAL, 1 Rond Point Maurice Bellonte,
31707 Blagnac Cedex, France; fax +33 5 61
93 45 80, e-mail airworthiness.A330A340@airbus.com; Internet https://
www.airbus.com.
(3) You may review copies of the service
information that is incorporated by reference
at the FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton,
(i) You must use the service information
specified in Table 4 of this AD to do the
actions required by this AD, unless the AD
specifies otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(4) You may also review copies of the
service information 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: https://www.archives.gov/federal-register/
cfr/ibr-locations.html.
TABLE 4—MATERIAL INCORPORATED BY REFERENCE
Airbus Mandatory Service Bulletin
Revision level
A330–28–3082, including Appendix 1 ................................................................................................
A330–28–3092, excluding Appendix 01 .............................................................................................
A330–28–3101 ....................................................................................................................................
A330–55–3016 ....................................................................................................................................
A340–28–4073 ....................................................................................................................................
A340–28–4078 ....................................................................................................................................
A340–28–4097, including Appendix 01 ..............................................................................................
A340–28–4107, excluding Appendix 01 .............................................................................................
A340–28–4118 ....................................................................................................................................
A340–55–4017 ....................................................................................................................................
14 CFR Part 39
CL–600–2D24 aircraft fuel system against
new fuel tank safety standards. * * *
The assessment showed that due to the
close proximity of intrinsically safe fuel
system wiring with other wiring, a single
failure from wire chafing at various locations
of the fuselage could result in an ignition
source inside the fuel tank. In addition,
chafing of the temperature sensor wiring
against the high power wiring in the avionics
compartment could lead to overheating of the
temperature sensor and hot surface ignition.
The presence of an ignition source inside the
fuel tank could result in a fuel tank
explosion.
[Docket No. FAA–2008–1007; Directorate
Identifier 2008–NM–135–AD; Amendment
39–15761; AD 2008–25–03]
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
Issued in Renton, Washington, on
November 26, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–29076 Filed 12–10–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2C10 (Regional Jet
Series 700, 701 & 702) Airplanes and
Model CL–600–2D24 (Regional Jet
Series 900) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
jlentini on PROD1PC65 with RULES
AGENCY:
SUMMARY: We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
from mandatory continuing
airworthiness information (MCAI)
originated by an aviation authority of
another country to identify and correct
an unsafe condition on an aviation
product. The MCAI describes the unsafe
condition as:
Bombardier Aerospace has completed a
system safety review of the CL–600–2C10/
VerDate Aug<31>2005
16:21 Dec 10, 2008
Jkt 217001
DATES: This AD becomes effective
January 15, 2009.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of January 15, 2009.
You may examine the AD
docket on the Internet at https://
www.regulations.gov or in person at the
U.S. Department of Transportation,
Docket Operations, M–30, West
Building Ground Floor, Room W12–140,
1200 New Jersey Avenue, SE.,
Washington, DC.
ADDRESSES:
FOR FURTHER INFORMATION CONTACT:
Rocco Viselli, Aerospace Engineer,
Airframe and Propulsion Branch, ANE–
171, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7331; fax
(516) 794–5531.
SUPPLEMENTARY INFORMATION:
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
05
01
01
02
02
01
03
01
02
02
Date
May 27, 2008.
December 14, 2005.
October 11, 2006.
March 16, 2007.
March 8, 2007.
January 25, 2007.
July 3, 2007.
December 14, 2005.
July 10, 2007.
March 16, 2007.
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would
apply to the specified products. That
NPRM was published in the Federal
Register on September 23, 2008 (73 FR
54749). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
Bombardier Aerospace has completed a
system safety review of the CL–600–2C10/
CL–600–2D24 aircraft fuel system against
new fuel tank safety standards, introduced in
Chapter 525 of the Airworthiness Manual
through Notice of Proposed Amendment
(NPA) 2002–043. The identified noncompliances were assessed using Transport
Canada Policy Letter No. 525–001 to
determine if mandatory corrective action was
required.
The assessment showed that due to the
close proximity of intrinsically safe fuel
system wiring with other wiring, a single
failure from wire chafing at various locations
of the fuselage could result in an ignition
source inside the fuel tank. In addition,
chafing of the temperature sensor wiring
against the high power wiring in the avionics
compartment could lead to overheating of the
temperature sensor and hot surface ignition.
The presence of an ignition source inside the
fuel tank could result in a fuel tank
explosion.
To correct the unsafe condition, this
directive mandates the installation of conduit
and the addition of spacers to protect fuel
tank wiring.
You may obtain further information by
examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to
participate in developing this AD. We
received no comments on the NPRM or
E:\FR\FM\11DER1.SGM
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Federal Register / Vol. 73, No. 239 / Thursday, December 11, 2008 / Rules and Regulations
on the determination of the cost to the
public.
Conclusion
We reviewed the available data and
determined that air safety and the
public interest require adopting the AD
as proposed.
Differences Between This AD and the
MCAI or Service Information
We have reviewed the MCAI and
related service information and, in
general, agree with their substance. But
we might have found it necessary to use
different words from those in the MCAI
to ensure the AD is clear for U.S.
operators and is enforceable. In making
these changes, we do not intend to differ
substantively from the information
provided in the MCAI and related
service information.
We might also have required different
actions in this AD from those in the
MCAI in order to follow our FAA
policies. Any such differences are
highlighted in a Note within the AD.
jlentini on PROD1PC65 with RULES
Costs of Compliance
We estimate that this AD will affect
about 159 products of U.S. registry. We
also estimate that it will take about 38
work-hours per product to comply with
the basic requirements of this AD. The
average labor rate is $80 per work-hour.
Required parts will cost about $2,914
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 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
this AD to the U.S. operators to be
$946,686, or $5,954 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
VerDate Aug<31>2005
16:21 Dec 10, 2008
Jkt 217001
that is likely to exist or develop on
products identified in this rulemaking
action.
Effective Date
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 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); and
3. Will not have a significant
economic impact, positive or negative,
on a substantial number of small entities
under the criteria of the Regulatory
Flexibility Act.
We prepared a regulatory evaluation
of the estimated costs to comply with
this AD and placed it in the AD docket.
75313
Affected ADs
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 the NPRM, 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.
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.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
■
2008–25–03 Bombardier, Inc. (Formerly
Canadair): Amendment 39–15761.
Docket No. FAA–2008–1007; Directorate
Identifier 2008–NM–135–AD.
PO 00000
Frm 00009
Fmt 4700
Sfmt 4700
(a) This airworthiness directive (AD)
becomes effective January 15, 2009.
(b) None.
Applicability
(c) This AD applies to the airplanes
identified in paragraphs (c)(1) and (c)(2) of
this AD, certificated in any category.
(1) Bombardier Model CL–600–2C10
(Regional Jet Series 700, 701, & 702)
airplanes, serial numbers 10003 through
10169 inclusive.
(2) Bombardier Model CL–600–2D24
(Regional Jet Series 900) airplanes, serial
numbers 15001 through 15030 inclusive.
Subject
(d) Air Transport Association (ATA) of
America Code 24: Electrical Power.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Bombardier Aerospace has completed a
system safety review of the CL–600–2C10/
CL–600–2D24 aircraft fuel system against
new fuel tank safety standards, introduced in
Chapter 525 of the Airworthiness Manual
through Notice of Proposed Amendment
(NPA) 2002–043. The identified noncompliances were assessed using Transport
Canada Policy Letter No. 525–001 to
determine if mandatory corrective action was
required.
The assessment showed that due to the
close proximity of intrinsically safe fuel
system wiring with other wiring, a single
failure from wire chafing at various locations
of the fuselage could result in an ignition
source inside the fuel tank. In addition,
chafing of the temperature sensor wiring
against the high power wiring in the avionics
compartment could lead to overheating of the
temperature sensor and hot surface ignition.
The presence of an ignition source inside the
fuel tank could result in a fuel tank
explosion.
To correct the unsafe condition, this
directive mandates the installation of conduit
and the addition of spacers to protect fuel
tank wiring.
Actions and Compliance
(f) Unless already done, do the following
actions.
(1) Within 4,500 flight hours after the
effective date of this AD, modify the fuel
system wiring along the fuselage and in the
avionics compartment by installing
protective conduit and spacers, in
accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
670BA–24–011, Revision C, dated November
28, 2005.
(2) Actions done before the effective date
of this AD in accordance with Bombardier
Service Bulletin 670BA–24–011, dated
September 7, 2004; Revision A, dated
December 14, 2004; or Revision B, dated
February 28, 2005; are acceptable for
compliance with the corresponding
requirements of this AD.
E:\FR\FM\11DER1.SGM
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75314
Federal Register / Vol. 73, No. 239 / Thursday, December 11, 2008 / Rules and Regulations
FAA AD Differences
Note: This AD differs from the MCAI and/
or service information as follows: No
differences.
Other FAA AD Provisions
(g) The following provisions also apply to
this AD:
(1) Alternative Methods of Compliance
(AMOCs): The Manager, New York Aircraft
Certification Office (ACO), FAA, has the
authority to approve AMOCs for this AD, if
requested using the procedures found in 14
CFR 39.19. Send information to ATTN: Rocco
Viselli, Aerospace Engineer, Airframe and
Propulsion Branch, ANE–171, FAA, New
York ACO, 1600 Stewart Avenue, Suite 410,
Westbury, New York 11590; telephone (516)
228–7331; fax (516) 794–5531. Before using
any approved AMOC on any airplane to
which the AMOC applies, notify your
appropriate principal inspector (PI) in the
FAA Flight Standards District Office (FSDO),
or lacking a PI, your local FSDO.
(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 FAAapproved 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.
(3) Reporting Requirements: For any
reporting requirement in this AD, under the
provisions of the Paperwork Reduction Act,
the Office of Management and Budget (OMB)
has approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
jlentini on PROD1PC65 with RULES
Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2008–25, dated July 3, 2008;
and Bombardier Service Bulletin 670BA–24–
011, Revision C, dated November 28, 2005;
for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service
Bulletin 670BA–24–011, Revision C, dated
November 28, 2005, to do the actions
required by this AD, unless the AD specifies
otherwise.
(1) The Director of the Federal Register
approved the incorporation by reference of
this service information under 5 U.S.C.
552(a) and 1 CFR part 51.
(2) For service information identified in
ˆ
this AD, contact Bombardier, Inc., 400 Cote´
Vertu Road West, Dorval, Quebec H4S 1Y9,
Canada; telephone 514–855–5000; fax 514–
855–7401; e-mail
thd.crj@aero.bombardier.com; Internet https://
www.bombardier.com.
(3) You may review copies of the service
information that is incorporated by reference
at the FAA, Transport Airplane Directorate,
1601 Lind Avenue, SW., Renton,
Washington. For information on the
availability of this material at the FAA, call
425–227–1221 or 425–227–1152.
(4) You may also review copies of the
service information at the National Archives
and Records Administration (NARA). For
information on the availability of this
VerDate Aug<31>2005
16:21 Dec 10, 2008
Jkt 217001
material at NARA, call 202–741–6030, or go
to: https://www.archives.gov/federal_register/
code_of_federal_regulations/
ibr_locations.html.
Issued in Renton, Washington, on
November 26, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–29077 Filed 12–10–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–0175; Directorate
Identifier 2007–NM–184–AD; Amendment
39–15766; AD 2008–25–08]
RIN 2120–AA64
Airworthiness Directives; Boeing
Model 757 Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Final rule.
SUMMARY: We are adopting a new
airworthiness directive (AD) for certain
Boeing Model 757 airplanes. This AD
requires changing the wiring of the fuel
boost pump and doing other specified
actions. This AD results from reports of
short circuits in an electrical connector
at the wing-to-body electrical
disconnect panel. We are issuing this
AD to prevent a short circuit of the
electrical connector for the fuel boost
pump, which could cause the
instruments for fuel, flap, slat, and
aileron systems to malfunction and
create a potential ignition source inside
the fuel tanks. A potential ignition
source inside the fuel tank in
combination with flammable fuel vapors
could result in a fuel tank explosion and
consequent loss of the airplane.
DATES: This AD is effective January 15,
2009.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of January 15, 2009.
ADDRESSES: For service information
identified in this AD, contact Boeing
Commercial Airplanes, Attention: Data
& Services Management, P.O. Box 3707,
MC 2H–65, Seattle, Washington 98124–
2207; telephone 206–544–5000,
extension 1, fax 206–766–5680; e-mail
me.boecom@boeing.com; Internet
https://www.myboeingfleet.com.
Examining the AD Docket
You may examine the AD docket on
the Internet at https://
PO 00000
Frm 00010
Fmt 4700
Sfmt 4700
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 AD, the regulatory
evaluation, any comments received, and
other information. The address for the
Docket Office (telephone 800–647–5527)
is the Document 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:
Philip Sheridan, Aerospace Engineer,
Systems and Equipment Branch, ANM–
130S, FAA, Seattle Aircraft Certification
Office, 1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 917–6441; fax (425) 917–6590.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed
rulemaking (NPRM) to amend 14 CFR
part 39 to include an airworthiness
directive (AD) that would apply to
certain Boeing Model 757 airplanes.
That NPRM was published in the
Federal Register on November 9, 2007
(72 FR 63512). That NPRM proposed to
require changing the wiring of the fuel
boost pump and doing other specified
actions.
Comments
We gave the public the opportunity to
participate in developing this AD. We
considered the comments received.
Request To Incorporate Revised Service
Information
Boeing asks that we refer to Boeing
Special Attention Service Bulletins 757–
28–0095 and 757–28–0096, both
Revision 1, both dated June 4, 2008, in
the final rule. Boeing Special Attention
Service Bulletins 757–28–0095 and
757–28–0096, both dated June 18, 2007,
were referred to in the NPRM as the
appropriate sources of service
information for accomplishing the
actions specified.
We have reviewed Revision 1 of these
referenced service bulletins and we
agree with the commenter since no
additional work is necessary on
airplanes changed in accordance with
the original issue of the referenced
service information. Revision 1 of these
service bulletins clarifies certain
procedures and certain routing and
splice locations. We have added
Revision 1 of these service bulletins to
the applicability specified in paragraphs
(c)(1) and (c)(2) of this AD, and to
paragraph (f) of this AD, as the
appropriate sources of service
E:\FR\FM\11DER1.SGM
11DER1
]]>Agencies
[Federal Register Volume 73, Number 239 (Thursday, December 11, 2008)]
[Rules and Regulations]
[Pages 75312-75314]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-29077]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-1007; Directorate Identifier 2008-NM-135-AD;
Amendment 39-15761; AD 2008-25-03]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional
Jet Series 700, 701 & 702) Airplanes and Model CL-600-2D24 (Regional
Jet Series 900) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
-----------------------------------------------------------------------
SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
Bombardier Aerospace has completed a system safety review of the
CL-600-2C10/CL-600-2D24 aircraft fuel system against new fuel tank
safety standards. * * *
The assessment showed that due to the close proximity of
intrinsically safe fuel system wiring with other wiring, a single
failure from wire chafing at various locations of the fuselage could
result in an ignition source inside the fuel tank. In addition,
chafing of the temperature sensor wiring against the high power
wiring in the avionics compartment could lead to overheating of the
temperature sensor and hot surface ignition. The presence of an
ignition source inside the fuel tank could result in a fuel tank
explosion.
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective January 15, 2009.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of January 15,
2009.
ADDRESSES: You may examine the AD docket on the Internet at https://
www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Rocco Viselli, Aerospace Engineer,
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7331; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on September 23, 2008
(73 FR 54749). That NPRM proposed to correct an unsafe condition for
the specified products. The MCAI states:
Bombardier Aerospace has completed a system safety review of the
CL-600-2C10/CL-600-2D24 aircraft fuel system against new fuel tank
safety standards, introduced in Chapter 525 of the Airworthiness
Manual through Notice of Proposed Amendment (NPA) 2002-043. The
identified non-compliances were assessed using Transport Canada
Policy Letter No. 525-001 to determine if mandatory corrective
action was required.
The assessment showed that due to the close proximity of
intrinsically safe fuel system wiring with other wiring, a single
failure from wire chafing at various locations of the fuselage could
result in an ignition source inside the fuel tank. In addition,
chafing of the temperature sensor wiring against the high power
wiring in the avionics compartment could lead to overheating of the
temperature sensor and hot surface ignition. The presence of an
ignition source inside the fuel tank could result in a fuel tank
explosion.
To correct the unsafe condition, this directive mandates the
installation of conduit and the addition of spacers to protect fuel
tank wiring.
You may obtain further information by examining the MCAI in the AD
docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We received no comments on the NPRM or
[[Page 75313]]
on the determination of the cost to the public.
Conclusion
We reviewed the available data and determined that air safety and
the public interest require adopting the AD as proposed.
Differences Between This AD and the MCAI or Service Information
We have reviewed the MCAI and related service information and, in
general, agree with their substance. But we might have found it
necessary to use different words from those in the MCAI to ensure the
AD is clear for U.S. operators and is enforceable. In making these
changes, we do not intend to differ substantively from the information
provided in the MCAI and related service information.
We might also have required different actions in this AD from those
in the MCAI in order to follow our FAA policies. Any such differences
are highlighted in a Note within the AD.
Costs of Compliance
We estimate that this AD will affect about 159 products of U.S.
registry. We also estimate that it will take about 38 work-hours per
product to comply with the basic requirements of this AD. The average
labor rate is $80 per work-hour. Required parts will cost about $2,914
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 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 this AD to the
U.S. operators to be $946,686, or $5,954 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 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 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); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
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 the NPRM, 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
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 AD:
2008-25-03 Bombardier, Inc. (Formerly Canadair): Amendment 39-15761.
Docket No. FAA-2008-1007; Directorate Identifier 2008-NM-135-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective January
15, 2009.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the airplanes identified in paragraphs
(c)(1) and (c)(2) of this AD, certificated in any category.
(1) Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701,
& 702) airplanes, serial numbers 10003 through 10169 inclusive.
(2) Bombardier Model CL-600-2D24 (Regional Jet Series 900)
airplanes, serial numbers 15001 through 15030 inclusive.
Subject
(d) Air Transport Association (ATA) of America Code 24:
Electrical Power.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Bombardier Aerospace has completed a system safety review of the
CL-600-2C10/CL-600-2D24 aircraft fuel system against new fuel tank
safety standards, introduced in Chapter 525 of the Airworthiness
Manual through Notice of Proposed Amendment (NPA) 2002-043. The
identified non-compliances were assessed using Transport Canada
Policy Letter No. 525-001 to determine if mandatory corrective
action was required.
The assessment showed that due to the close proximity of
intrinsically safe fuel system wiring with other wiring, a single
failure from wire chafing at various locations of the fuselage could
result in an ignition source inside the fuel tank. In addition,
chafing of the temperature sensor wiring against the high power
wiring in the avionics compartment could lead to overheating of the
temperature sensor and hot surface ignition. The presence of an
ignition source inside the fuel tank could result in a fuel tank
explosion.
To correct the unsafe condition, this directive mandates the
installation of conduit and the addition of spacers to protect fuel
tank wiring.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 4,500 flight hours after the effective date of this
AD, modify the fuel system wiring along the fuselage and in the
avionics compartment by installing protective conduit and spacers,
in accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 670BA-24-011, Revision C, dated November 28, 2005.
(2) Actions done before the effective date of this AD in
accordance with Bombardier Service Bulletin 670BA-24-011, dated
September 7, 2004; Revision A, dated December 14, 2004; or Revision
B, dated February 28, 2005; are acceptable for compliance with the
corresponding requirements of this AD.
[[Page 75314]]
FAA AD Differences
Note: This AD differs from the MCAI and/or service information
as follows: No differences.
Other FAA AD Provisions
(g) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), FAA, has the authority to
approve AMOCs for this AD, if requested using the procedures found
in 14 CFR 39.19. Send information to ATTN: Rocco Viselli, Aerospace
Engineer, Airframe and Propulsion Branch, ANE-171, FAA, New York
ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590;
telephone (516) 228-7331; fax (516) 794-5531. Before using any
approved AMOC on any airplane to which the AMOC applies, notify your
appropriate principal inspector (PI) in the FAA Flight Standards
District Office (FSDO), or lacking a PI, your local FSDO.
(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.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act, the
Office of Management and Budget (OMB) has approved the information
collection requirements and has assigned OMB Control Number 2120-
0056.
Related Information
(h) Refer to MCAI Canadian Airworthiness Directive CF-2008-25,
dated July 3, 2008; and Bombardier Service Bulletin 670BA-24-011,
Revision C, dated November 28, 2005; for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service Bulletin 670BA-24-011,
Revision C, dated November 28, 2005, to do the actions required by
this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail thd.crj@aero.bombardier.com; Internet https://
www.bombardier.com.
(3) You may review copies of the service information that is
incorporated by reference at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington. For
information on the availability of this material at the FAA, call
425-227-1221 or 425-227-1152.
(4) You may also review copies of the service information 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: https://www.archives.gov/federal_register/code_of_federal_
regulations/ibr_locations.html.
Issued in Renton, Washington, on November 26, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-29077 Filed 12-10-08; 8:45 am]
BILLING CODE 4910-13-P
