Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional Jet Series 900) Airplanes, 50254-50256 [E8-19717]
Download as PDF
<![CDATA[
50254
Federal Register / Vol. 73, No. 166 / Tuesday, August 26, 2008 / Proposed Rules
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0911; Directorate
Identifier 2008–NM–115–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier
Model CL–600–2C10 (Regional Jet
Series 700, 701 & 702), CL–600–2D15
(Regional Jet Series 705), and CL–600–
2D24 (Regional Jet Series 900)
Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: We propose to adopt a new
airworthiness directive (AD) for the
products listed above. This proposed
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:
There have been several incidents of
shorting and sparks due to de-icing fluid
ingress into the cockpit of CL–600–2C10 and
CL–600–2D24 aircraft. De-icing fluid can
enter between the windshields and side
windows, leading to possible damage to the
electrical components and wires as it comes
into contact with cockpit floodlight electrical
connections.
De-icing fluid in contact with cockpit
floodlight electrical connections can
result in possible arcing and fire. The
proposed AD would require actions that
are intended to address the unsafe
condition described in the MCAI.
DATES: We must receive comments on
this proposed AD by September 25,
2008.
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
W12–40, 1200 New Jersey Avenue, SE.,
Washington, DC, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
sroberts on PROD1PC76 with PROPOSALS
ADDRESSES:
VerDate Aug<31>2005
18:09 Aug 25, 2008
Jkt 214001
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:
Wing Chan, Aerospace Engineer,
Systems and Flight Test Branch, ANE–
172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7311; 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–2008–0911; Directorate Identifier
2008–NM–115–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–2008–19,
dated May 8, 2008 (referred to after this
as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
There have been several incidents of
shorting and sparks due to de-icing fluid
ingress into the cockpit of CL–600–2C10 and
CL–600–2D24 aircraft. De-icing fluid can
enter between the windshields and side
windows, leading to possible damage to the
electrical components and wires as it comes
into contact with cockpit floodlight electrical
connections.
De-icing fluid in contact with cockpit
floodlight electrical connections can
PO 00000
Frm 00007
Fmt 4702
Sfmt 4702
result in possible arcing and fire. The
actions to address the unsafe condition
include performing a leak test, applying
sealant between the windshields and
side windows, and doing related
investigative and corrective actions. The
related investigative action is
performing a leak test after applying
sealant. The related corrective action is
contacting Bombardier for repair
instructions and doing the repair. You
may obtain further information by
examining the MCAI in the AD docket.
Relevant Service Information
Bombardier has issued Alert Service
Bulletin A670BA–56–002, Revision A,
dated February 26, 2008. 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.
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 proposed
different actions in this AD from those
in the MCAI in order to follow FAA
policies. Any such differences are
highlighted in a NOTE within the
proposed AD.
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 254 products of U.S.
registry. We also estimate that it would
take about 4 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $80 per work-hour. Based on
these figures, we estimate the cost of the
C:\FR\FM\26AUP1.SGM
26AUP1
Federal Register / Vol. 73, No. 166 / Tuesday, August 26, 2008 / Proposed Rules
proposed AD on U.S. operators to be
$81,280, or $320 per product.
PART 39—AIRWORTHINESS
DIRECTIVES
Authority for This Rulemaking
1. The authority citation for part 39
continues to read as follows:
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); 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 proposed AD and placed it in the
AD docket.
sroberts on PROD1PC76 with PROPOSALS
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation
safety, 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:
VerDate Aug<31>2005
18:09 Aug 25, 2008
Jkt 214001
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. (Formerly Canadair):
Docket No. FAA–2008–0911; Directorate
Identifier 2008–NM–115–AD.
Comments Due Date
(a) We must receive comments by
September 25, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model
CL–600–2C10 (Regional Jet Series 700, 701 &
702) airplanes, serial numbers 10003 through
10216 inclusive; and Model CL–600–2D15
(Regional Jet Series 705) and CL–600–2D24
(Regional Jet Series 900) airplanes, serial
numbers 15001 through 15040 inclusive;
certificated in any category.
Subject
(d) Air Transport Association (ATA) of
America Code 56: Windows.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
There have been several incidents of
shorting and sparks due to de-icing fluid
ingress into the cockpit of CL–600–2C10 and
CL–600–2D24 aircraft. De-icing fluid can
enter between the windshields and side
windows, leading to possible damage to the
electrical components and wires as it comes
into contact with cockpit floodlight electrical
connections.
De-icing fluid in contact with cockpit
floodlight electrical connections can result in
possible arcing and fire. The actions to
address the unsafe condition include
performing a leak test, applying sealant
between the windshields and side windows,
and doing related investigative and corrective
actions. The related investigative action is
performing a leak test after applying sealant.
The related corrective action is contacting
Bombardier for repair instructions and doing
the repair.
Actions and Compliance
(f) Unless already done, do the following
actions.
(1) Within 450 flight hours after the
effective date of this AD: Perform a leak test
in accordance with Part A of the
Accomplishment Instructions of Bombardier
Alert Service Bulletin A670BA–56–002,
Revision A, dated February 26, 2008.
(2) If leakage is detected in the leak test
performed in accordance with paragraph
(f)(1) of this AD: Prior to further flight, apply
sealant between the windshields and side
windows and do all applicable related
investigative and corrective actions in
PO 00000
Frm 00008
Fmt 4702
Sfmt 4702
50255
accordance with Part B of the
Accomplishment Instructions of Bombardier
Alert Service Bulletin A670BA–56–002,
Revision A, dated February 26, 2008. Do all
applicable related investigative and
corrective actions before further flight.
(3) If there is no leakage detected in the
leak test performed in accordance with
paragraph (f)(1) of this AD: Within 6 months
or 2,000 flight hours after the effective date
of this AD, whichever comes first, apply
sealant between the windshields and side
windows and do all applicable related
investigative and corrective actions before
further flight in accordance with Part B of the
Accomplishment Instructions of Bombardier
Alert Service Bulletin A670BA–56–002,
Revision A, dated February 26, 2008. Do all
applicable related investigative and
corrective actions before further flight.
(4) A leak test and application of sealant
are also acceptable for compliance with the
requirements of paragraphs (f)(1), (f)(2), and
(f)(3) of this AD if done before the effective
date of this AD in accordance with
Bombardier Alert Service Bulletin A670BA–
56–002, dated January 7, 2008.
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: Wing Chan,
Aerospace Engineer, Systems and Flight Test
Branch, ANE–172, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue,
Suite 410, Westbury, New York 11590;
telephone (516) 228–7311; 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–2008–19, dated May 8, 2008;
and Bombardier Alert Service Bulletin
A670BA–56–002, Revision A, dated February
26, 2008; for related information.
C:\FR\FM\26AUP1.SGM
26AUP1
50256
Federal Register / Vol. 73, No. 166 / Tuesday, August 26, 2008 / Proposed Rules
Issued in Renton, Washington, on August
18, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E8–19717 Filed 8–25–08; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2008–0910; Directorate
Identifier 2008–NM–033–AD]
RIN 2120–AA64
Airworthiness Directives; Airbus Model
A330–200, A330–300, A340–300, A340–
500, and A340–600 Series Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
SUMMARY: We propose to adopt a new
airworthiness directive (AD) for the
products listed above that would
supersede an existing AD. This
proposed 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:
An A330 operator reported a shroud box
bottom panel missing during a routine
inspection. The same panel detached from an
A330 aircraft during take-off, causing damage
to the surrounding structure and to the
Trimmable Horizontal Stabilizer (THS) tip
fairing.
The inspection indicated the blind rivets
used to attach the panel worked loose
causing fatigue damage with crack
propagation through the fastener line
resulting in panel detachment * * *.
* * * Three additional events of panel loss
have been experienced on in service aircraft
already inspected in accordance with the AD
requirements * * *.
The proposed AD would require actions
that are intended to address the unsafe
condition described in the MCAI.
DATES: We must receive comments on
this proposed AD by September 25,
2008.
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
sroberts on PROD1PC76 with PROPOSALS
ADDRESSES:
VerDate Aug<31>2005
18:09 Aug 25, 2008
Jkt 214001
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
W12–40, 1200 New Jersey Avenue, SE.,
Washington, DC, between 9 a.m. and 5
p.m., Monday through Friday, except
Federal holidays.
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:
Vladimir Ulyanov, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–1138; fax (425) 227–1149.
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–2008–0910; Directorate Identifier
2008–NM–033–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
On April 4, 2007, we issued AD 2007–
08–05, Amendment 39–15022 (72 FR
18563, April 13, 2007). That AD
required actions intended to address an
unsafe condition on the products listed
above.
Since we issued AD 2007–08–05, we
have received additional reports of loss
of the bottom panel of the shroud box
on in-service airplanes on which the
one-time detailed inspection required
PO 00000
Frm 00009
Fmt 4702
Sfmt 4702
by AD 2007–08–05 has been done.
Therefore, the requirements of AD
2007–08–05 do not adequately address
the identified unsafe condition of that
AD. The European Aviation Safety
Agency (EASA), which is the Technical
Agent for the Member States of the
European Community, has issued
Airworthiness Directive 2008–0002,
dated January 7, 2008 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
An A330 operator reported a shroud box
bottom panel missing during a routine
inspection. The same panel detached from an
A330 aircraft during take-off, causing damage
to the surrounding structure and to the
Trimmable Horizontal Stabilizer (THS) tip
fairing.
The inspection indicated the blind rivets
used to attach the panel worked loose
causing fatigue damage with crack
propagation through the fastener line
resulting in panel detachment.
To avoid potential injuries to persons on
ground, Airworthiness Directive (AD) 2006–
0107 [which corresponds with FAA AD
2007–08–05] mandated a one time detailed
visual inspection of the shroud box bottom
panel.
Further to issuance of AD 2006–0107, three
additional events of panel loss have been
experienced on in service aircraft already
inspected in accordance with the AD
requirements and no findings. Thus, it has
been decided to delete this one time detailed
visual inspection and to mandate a
modification which prevents such unsafe
condition. Therefore, the present AD
supersedes EASA AD 2006–0107 and
mandates the installation of a bolted shroud
box bottom panel instead of blind riveted
metallic design.
The modification includes doing all
applicable related investigative and
corrective actions. The related
investigative action is an inspection to
detect cracks of the shroud box hole.
The corrective action is repairing any
cracked shroud box hole. The
applicability of the MCAI has been
revised; certain airplanes have been
removed and others added. You may
obtain further information by examining
the MCAI in the AD docket.
Relevant Service Information
Airbus has issued the following
service bulletins:
• Airbus Service Bulletin A330–57–
3100, dated October 1, 2007;
• Airbus Service Bulletin A340–57–
4109, dated October 1, 2007; and
• Airbus Service Bulletin A340–57–
5018, dated October 1, 2007.
The actions described in this service
information are intended to correct the
unsafe condition identified in the
MCAI.
C:\FR\FM\26AUP1.SGM
26AUP1
]]>Agencies
[Federal Register Volume 73, Number 166 (Tuesday, August 26, 2008)]
[Proposed Rules]
[Pages 50254-50256]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E8-19717]
[[Page 50254]]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2008-0911; Directorate Identifier 2008-NM-115-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional
Jet Series 700, 701 & 702), CL-600-2D15 (Regional Jet Series 705), and
CL-600-2D24 (Regional Jet Series 900) Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking (NPRM).
-----------------------------------------------------------------------
SUMMARY: We propose to adopt a new airworthiness directive (AD) for the
products listed above. This proposed 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:
There have been several incidents of shorting and sparks due to
de-icing fluid ingress into the cockpit of CL-600-2C10 and CL-600-
2D24 aircraft. De-icing fluid can enter between the windshields and
side windows, leading to possible damage to the electrical
components and wires as it comes into contact with cockpit
floodlight electrical connections.
De-icing fluid in contact with cockpit floodlight electrical
connections can result in possible arcing and fire. The proposed AD
would require actions that are intended to address the unsafe condition
described in the MCAI.
DATES: We must receive comments on this proposed AD by September 25,
2008.
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 W12-40, 1200 New
Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
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: Wing Chan, Aerospace Engineer, Systems
and Flight Test Branch, ANE-172, FAA, New York Aircraft Certification
Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590;
telephone (516) 228-7311; 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-2008-0911;
Directorate Identifier 2008-NM-115-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-
2008-19, dated May 8, 2008 (referred to after this as ``the MCAI''), to
correct an unsafe condition for the specified products. The MCAI
states:
There have been several incidents of shorting and sparks due to
de-icing fluid ingress into the cockpit of CL-600-2C10 and CL-600-
2D24 aircraft. De-icing fluid can enter between the windshields and
side windows, leading to possible damage to the electrical
components and wires as it comes into contact with cockpit
floodlight electrical connections.
De-icing fluid in contact with cockpit floodlight electrical
connections can result in possible arcing and fire. The actions to
address the unsafe condition include performing a leak test, applying
sealant between the windshields and side windows, and doing related
investigative and corrective actions. The related investigative action
is performing a leak test after applying sealant. The related
corrective action is contacting Bombardier for repair instructions and
doing the repair. You may obtain further information by examining the
MCAI in the AD docket.
Relevant Service Information
Bombardier has issued Alert Service Bulletin A670BA-56-002,
Revision A, dated February 26, 2008. 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.
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 proposed different actions in this AD from those
in the MCAI in order to follow FAA policies. Any such differences are
highlighted in a NOTE within the proposed AD.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 254 products of U.S. registry. We also estimate that
it would take about 4 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $80 per
work-hour. Based on these figures, we estimate the cost of the
[[Page 50255]]
proposed AD on U.S. operators to be $81,280, or $320 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); 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 proposed AD and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, 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. (Formerly Canadair): Docket No. FAA-2008-0911;
Directorate Identifier 2008-NM-115-AD.
Comments Due Date
(a) We must receive comments by September 25, 2008.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier Model CL-600-2C10 (Regional
Jet Series 700, 701 & 702) airplanes, serial numbers 10003 through
10216 inclusive; and Model CL-600-2D15 (Regional Jet Series 705) and
CL-600-2D24 (Regional Jet Series 900) airplanes, serial numbers
15001 through 15040 inclusive; certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 56: Windows.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
There have been several incidents of shorting and sparks due to
de-icing fluid ingress into the cockpit of CL-600-2C10 and CL-600-
2D24 aircraft. De-icing fluid can enter between the windshields and
side windows, leading to possible damage to the electrical
components and wires as it comes into contact with cockpit
floodlight electrical connections.
De-icing fluid in contact with cockpit floodlight electrical
connections can result in possible arcing and fire. The actions to
address the unsafe condition include performing a leak test,
applying sealant between the windshields and side windows, and doing
related investigative and corrective actions. The related
investigative action is performing a leak test after applying
sealant. The related corrective action is contacting Bombardier for
repair instructions and doing the repair.
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 450 flight hours after the effective date of this AD:
Perform a leak test in accordance with Part A of the Accomplishment
Instructions of Bombardier Alert Service Bulletin A670BA-56-002,
Revision A, dated February 26, 2008.
(2) If leakage is detected in the leak test performed in
accordance with paragraph (f)(1) of this AD: Prior to further
flight, apply sealant between the windshields and side windows and
do all applicable related investigative and corrective actions in
accordance with Part B of the Accomplishment Instructions of
Bombardier Alert Service Bulletin A670BA-56-002, Revision A, dated
February 26, 2008. Do all applicable related investigative and
corrective actions before further flight.
(3) If there is no leakage detected in the leak test performed
in accordance with paragraph (f)(1) of this AD: Within 6 months or
2,000 flight hours after the effective date of this AD, whichever
comes first, apply sealant between the windshields and side windows
and do all applicable related investigative and corrective actions
before further flight in accordance with Part B of the
Accomplishment Instructions of Bombardier Alert Service Bulletin
A670BA-56-002, Revision A, dated February 26, 2008. Do all
applicable related investigative and corrective actions before
further flight.
(4) A leak test and application of sealant are also acceptable
for compliance with the requirements of paragraphs (f)(1), (f)(2),
and (f)(3) of this AD if done before the effective date of this AD
in accordance with Bombardier Alert Service Bulletin A670BA-56-002,
dated January 7, 2008.
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: Wing Chan, Aerospace
Engineer, Systems and Flight Test Branch, ANE-172, FAA, New York
Aircraft Certification Office, 1600 Stewart Avenue, Suite 410,
Westbury, New York 11590; telephone (516) 228-7311; 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-2008-19,
dated May 8, 2008; and Bombardier Alert Service Bulletin A670BA-56-
002, Revision A, dated February 26, 2008; for related information.
[[Page 50256]]
Issued in Renton, Washington, on August 18, 2008.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E8-19717 Filed 8-25-08; 8:45 am]
BILLING CODE 4910-13-P
