Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 9661-9663 [E8-3070]
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Federal Register / Vol. 73, No. 36 / Friday, February 22, 2008 / Rules and Regulations
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.
Related Information
(h) Refer to MCAI EASA Airworthiness
Directive 2007–0170, dated June 15, 2007;
and Saab Service Bulletin 340–28–024,
Revision 01, dated May 21, 2007; for related
information.
Material Incorporated by Reference
(i) You must use Saab Service Bulletin
340–28–024, Revision 01, dated May 21,
2007, 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 Saab Aircraft AB, SAAB
Aircraft Product Support, S–581.88,
¨
Linkoping, Sweden.
(3) You may review copies at the FAA,
Transport Airplane Directorate, 1601 Lind
Avenue SW., Renton, Washington; or 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/ibrlocations.html.
Issued in Renton, Washington, on February
11, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E8–3068 Filed 2–21–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2007–0335; Directorate
Identifier 2007–NM–292–AD; Amendment
39–15380; AD 2008–04–08]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2B19 (Regional Jet
Series 100 & 440) Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
rmajette on PROD1PC64 with RULES
AGENCY:
We are adopting a new
airworthiness directive (AD) for the
products listed above. This AD results
SUMMARY:
VerDate Aug<31>2005
14:24 Feb 21, 2008
Jkt 214001
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–600–2B19
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 is required.
The assessment and lightning tests showed
that certain fuel tube self-bonded couplings
do not provide sufficient lightning current
capability. The assessment also showed that
single failure of the integral bonding wire of
the self-bonded couplings or excessive axial
clearance at the reducer ferrules of certain
self-bonded couplings could affect electrical
bonding between fuel tubes.
Insufficient electrical bonding between fuel
tubes or insufficient current capability of fuel
tube couplings, if not corrected, could result
in arcing and potential ignition source inside
the fuel tank during lightning strikes and
consequent fuel tank explosion. * * *
We are issuing this AD to require
actions to correct the unsafe condition
on these products.
DATES: This AD becomes effective
March 28, 2008.
The Director of the Federal Register
approved the incorporation by reference
of a certain publication listed in this AD
as of March 28, 2008.
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 December 17, 2007 (72 FR
71273). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
PO 00000
Frm 00007
Fmt 4700
Sfmt 4700
9661
Bombardier Aerospace has completed a
system safety review of the CL–600–2B19
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 is required.
The assessment and lightning tests showed
that certain fuel tube self-bonded couplings
do not provide sufficient lightning current
capability. The assessment also showed that
single failure of the integral bonding wire of
the self-bonded couplings or excessive axial
clearance at the reducer ferrules of certain
self-bonded couplings could affect electrical
bonding between fuel tubes.
Insufficient electrical bonding between fuel
tubes or insufficient current capability of fuel
tube couplings, if not corrected, could result
in arcing and potential ignition source inside
the fuel tank during lightning strikes and
consequent fuel tank explosion. To correct
the unsafe condition, this directive mandates
the replacement of certain fuel tube
couplings with redesigned couplings.
For certain couplings, the replacement
includes a detailed inspection for wear
of the sleeve and coupling and
applicable corrective actions (including
installing new O-rings and sleeves). 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
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 692 products of U.S. registry. We
E:\FR\FM\22FER1.SGM
22FER1
9662
Federal Register / Vol. 73, No. 36 / Friday, February 22, 2008 / Rules and Regulations
also estimate that it will take about 21
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 $2,417
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
$2,835,124, or $4,097 per product.
Examining the AD Docket
Authority for This Rulemaking
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
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.
rmajette on PROD1PC64 with RULES
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.
VerDate Aug<31>2005
14:24 Feb 21, 2008
Jkt 214001
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
Adoption of the Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as
follows:
I
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
I
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
I
2008–04–08 Bombardier, Inc. (Formerly
Canadair): Amendment 39–15380.
Docket No. FAA–2007–0335; Directorate
Identifier 2007–NM–292–AD.
Effective Date
(a) This airworthiness directive (AD)
becomes effective March 28, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model
CL–600–2B19 (Regional Jet Series 100 & 440)
airplanes, certificated in any category, serial
numbers 7003 through 7067, and 7069
through 7981.
Subject
(d) Air Transport Association (ATA) of
America Code 28: Fuel.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
Bombardier Aerospace has completed a
system safety review of the CL–600–2B19
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 is required.
PO 00000
Frm 00008
Fmt 4700
Sfmt 4700
The assessment and lightning tests showed
that certain fuel tube self-bonded couplings
do not provide sufficient lightning current
capability. The assessment also showed that
single failure of the integral bonding wire of
the self-bonded couplings or excessive axial
clearance at the reducer ferrules of certain
self-bonded couplings could affect electrical
bonding between fuel tubes.
Insufficient electrical bonding between fuel
tubes or insufficient current capability of fuel
tube couplings, if not corrected, could result
in arcing and potential ignition source inside
the fuel tank during lightning strikes and
consequent fuel tank explosion. To correct
the unsafe condition, this directive mandates
the replacement of certain fuel tube
couplings with redesigned couplings.
For certain couplings, the replacement
includes a detailed inspection for wear of the
sleeve and coupling and applicable
corrective actions (including installing new
O-rings and sleeves).
Actions and Compliance
(f) Within 5000 flight hours after the
effective date of this AD, unless already
done, replace fuel tube couplings inside the
wing and center fuel tanks with redesigned
couplings, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 601R–28–054, Revision A,
dated August 7, 2006. Do all applicable
inspections and corrective actions before
further flight.
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, 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 Aircraft Certification Office, 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.
E:\FR\FM\22FER1.SGM
22FER1
Federal Register / Vol. 73, No. 36 / Friday, February 22, 2008 / Rules and Regulations
Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2007–23, dated October 18,
2007, and Bombardier Service Bulletin 601R–
28–054, Revision A, dated August 7, 2006,
for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service
Bulletin 601R–28–054, Revision A, dated
August 7, 2006, 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., Canadair,
Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9,
Canada.
(3) You may review copies at the FAA,
Transport Airplane Directorate, 1601 Lind
Avenue, SW., Renton, Washington; or 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/ibrlocations.html.
Issued in Renton, Washington, on February
13, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane
Directorate, Aircraft Certification Service.
[FR Doc. E8–3070 Filed 2–21–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
RIN 2120–AA64
Airworthiness Directives; ATR Model
ATR42 and ATR72 Airplanes
Federal Aviation
Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
rmajette on PROD1PC64 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:
[T]he FAA has published a set of new rules
related to the fuel tank safety, including the
Special Federal Aviation Regulation 88
(SFAR 88).
14:24 Feb 21, 2008
Jkt 214001
*
*
*
*
*
* * * ATR carried out a safety review on
the fuel tank systems and zones adjacent to
the fuel tanks on all ATR models * * *.
*
*
*
*
*
The unsafe condition is the potential
of ignition sources inside fuel tanks,
which, in combination with flammable
fuel vapors, could result in fuel tank
explosions and consequent loss of the
airplane. We are issuing this AD to
require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective
March 28, 2008.
The Director of the Federal Register
approved the incorporation by reference
of certain publications listed in this AD
as of March 28, 2008.
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: Tom
Rodriguez, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–1137; fax (425) 227–1149.
SUPPLEMENTARY INFORMATION:
Discussion
[Docket No. FAA–2007–0334; Directorate
Identifier 2007–NM–206–AD; Amendment
39–15385; AD 2008–04–13]
VerDate Aug<31>2005
The JAA (Joint Aviation Authority) has
issued an Interim Policy JAA INT/POL 25/12,
to recommend the application of a similar
requirement to the National Aviation
Authorities (NAA) [of Europe].
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 December 17, 2007 (72 FR
71286). That NPRM proposed to correct
an unsafe condition for the specified
products. The MCAI states:
[T]he FAA has published a set of new rules
related to the fuel tank safety, including the
Special Federal Aviation Regulation 88
(SFAR 88).
The JAA (Joint Aviation Authority) has
issued an Interim Policy JAA INT/POL 25/12,
to recommend the application of a similar
requirement to the National Aviation
Authorities (NAA) [of Europe].
This recommendation was followed by
French DGAC, which rendered the
compliance to JAA INT/POL 25/12
mandatory for all ATR Aircraft.
Under this regulation, all holders of type
certificates are required to conduct a design
review of their fuel tank systems against
explosion risk. It also requires the
development and implementation of
PO 00000
Frm 00009
Fmt 4700
Sfmt 4700
9663
maintenance and inspection instructions to
maintain the safety of the fuel tank system.
To answer JAA INT/POL 25/12, and in
accordance with SFAR 88 requirements and
guideline, ATR carried out a safety review on
the fuel tank systems and zones adjacent to
the fuel tanks on all ATR models using
relevant safety assessment methods of JAR
25.1309.
As a result of this safety review, ATR
developed for ATR 42 the modification
05355 (SB (service bulletin) ATR 42–28–
0039), and for ATR 72 the modification
05356 (SB ATR 72–28–1019). Those
modifications consist in the installation of
fuses adapters on wiring entering the fuel
tanks and current limitation devices. For
ATR 72 aircraft, the modification also
requires replacement of the high level
sensors with new sensors having shorter
harness.
The modification also includes related
investigative and corrective actions,
which include inspecting the electrical
harness for correct installation and
adjusting the harness as necessary, and,
for Model ATR 42 airplanes, inspecting
the bonding strap for correct installation
and adjusting the bonding strap. The
unsafe condition is the potential of
ignition sources inside fuel tanks,
which, in combination with flammable
fuel vapors, could result in fuel tank
explosions and consequent loss of the
airplane. 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
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.
E:\FR\FM\22FER1.SGM
22FER1
]]>Agencies
[Federal Register Volume 73, Number 36 (Friday, February 22, 2008)]
[Rules and Regulations]
[Pages 9661-9663]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-3070]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2007-0335; Directorate Identifier 2007-NM-292-AD;
Amendment 39-15380; AD 2008-04-08]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) 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-600-2B19 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 is required.
The assessment and lightning tests showed that certain fuel tube
self-bonded couplings do not provide sufficient lightning current
capability. The assessment also showed that single failure of the
integral bonding wire of the self-bonded couplings or excessive
axial clearance at the reducer ferrules of certain self-bonded
couplings could affect electrical bonding between fuel tubes.
Insufficient electrical bonding between fuel tubes or
insufficient current capability of fuel tube couplings, if not
corrected, could result in arcing and potential ignition source
inside the fuel tank during lightning strikes and consequent fuel
tank explosion. * * *
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective March 28, 2008.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in this AD as of March 28,
2008.
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 December 17, 2007
(72 FR 71273). 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-600-2B19 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 is required.
The assessment and lightning tests showed that certain fuel tube
self-bonded couplings do not provide sufficient lightning current
capability. The assessment also showed that single failure of the
integral bonding wire of the self-bonded couplings or excessive
axial clearance at the reducer ferrules of certain self-bonded
couplings could affect electrical bonding between fuel tubes.
Insufficient electrical bonding between fuel tubes or
insufficient current capability of fuel tube couplings, if not
corrected, could result in arcing and potential ignition source
inside the fuel tank during lightning strikes and consequent fuel
tank explosion. To correct the unsafe condition, this directive
mandates the replacement of certain fuel tube couplings with
redesigned couplings.
For certain couplings, the replacement includes a detailed inspection
for wear of the sleeve and coupling and applicable corrective actions
(including installing new O-rings and sleeves). 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 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 692 products of U.S.
registry. We
[[Page 9662]]
also estimate that it will take about 21 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 $2,417 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 $2,835,124, or $4,097 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:
2008-04-08 Bombardier, Inc. (Formerly Canadair): Amendment 39-15380.
Docket No. FAA-2007-0335; Directorate Identifier 2007-NM-292-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective March
28, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2B19 (Regional
Jet Series 100 & 440) airplanes, certificated in any category,
serial numbers 7003 through 7067, and 7069 through 7981.
Subject
(d) Air Transport Association (ATA) of America Code 28: Fuel.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Bombardier Aerospace has completed a system safety review of the
CL-600-2B19 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 is required.
The assessment and lightning tests showed that certain fuel tube
self-bonded couplings do not provide sufficient lightning current
capability. The assessment also showed that single failure of the
integral bonding wire of the self-bonded couplings or excessive
axial clearance at the reducer ferrules of certain self-bonded
couplings could affect electrical bonding between fuel tubes.
Insufficient electrical bonding between fuel tubes or
insufficient current capability of fuel tube couplings, if not
corrected, could result in arcing and potential ignition source
inside the fuel tank during lightning strikes and consequent fuel
tank explosion. To correct the unsafe condition, this directive
mandates the replacement of certain fuel tube couplings with
redesigned couplings.
For certain couplings, the replacement includes a detailed
inspection for wear of the sleeve and coupling and applicable
corrective actions (including installing new O-rings and sleeves).
Actions and Compliance
(f) Within 5000 flight hours after the effective date of this
AD, unless already done, replace fuel tube couplings inside the wing
and center fuel tanks with redesigned couplings, in accordance with
the Accomplishment Instructions of Bombardier Service Bulletin 601R-
28-054, Revision A, dated August 7, 2006. Do all applicable
inspections and corrective actions before further flight.
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, 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
Aircraft Certification Office, 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.
[[Page 9663]]
Related Information
(h) Refer to MCAI Canadian Airworthiness Directive CF-2007-23,
dated October 18, 2007, and Bombardier Service Bulletin 601R-28-054,
Revision A, dated August 7, 2006, for related information.
Material Incorporated by Reference
(i) You must use Bombardier Service Bulletin 601R-28-054,
Revision A, dated August 7, 2006, 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., Canadair, Aerospace Group, P.O. Box 6087, Station
Centre-ville, Montreal, Quebec H3C 3G9, Canada.
(3) You may review copies at the FAA, Transport Airplane
Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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.
Issued in Renton, Washington, on February 13, 2008.
Stephen P. Boyd,
Assistant Manager, Transport Airplane Directorate, Aircraft
Certification Service.
[FR Doc. E8-3070 Filed 2-21-08; 8:45 am]
BILLING CODE 4910-13-P
