Airworthiness Directives; Bombardier, Inc. (Type Certificate Previously Held by Bombardier Aerospace, Inc.; Canadair) Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 258-260 [E9-31290]
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258
Proposed Rules
Federal Register
Vol. 75, No. 2
Tuesday, January 5, 2010
This section of the FEDERAL REGISTER
contains notices to the public of the proposed
issuance of rules and regulations. The
purpose of these notices is to give interested
persons an opportunity to participate in the
rule making prior to the adoption of the final
rules.
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–1229; Directorate
Identifier 2009–NM–106–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. (Type Certificate Previously Held
by Bombardier Aerospace, Inc.;
Canadair) Model CL–600–2B19
(Regional Jet Series 100 & 440)
Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
srobinson on DSKHWCL6B1PROD with PROPOSALS
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:
A specific batch of nose landing gear (NLG)
and NLG door selector valves, part number
(P/N) 601R75146–1 (Kaiser Fluid
Technologies P/N 750006000), may have had
their end caps incorrectly lock-wired and/or
incorrectly torqued during assembly. This
condition can lead to the end cap backing off,
with consequent damage to a seal and
internal leakage within the valve.
Subsequently, if electrical power is
transferred or removed from the aircraft
before the NLG safety pin is installed, any
pressure, including residual pressure, in the
No. 3 hydraulic system can result in an
uncommanded NLG retraction and/or
uncommanded opening of the NLG doors.
There have been six cases reported on
CL600–2B19 aircraft, one of which resulted
in the collapse of the NLG at the departure
gate.
*
*
*
*
*
The proposed AD would require actions
that are intended to address the unsafe
condition described in the MCAI.
VerDate Nov<24>2008
16:40 Jan 04, 2010
Jkt 220001
DATES: We must receive comments on
this proposed AD by February 19, 2010.
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.
For service information identified in
this proposed AD, contact Bombardier,
ˆ
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.
You may review copies of the
referenced service information 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.
ADDRESSES:
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:
Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems
Branch, ANE–171, FAA, New York
Aircraft Certification Office, 1600
Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228–
7318; fax (516) 794–5531.
SUPPLEMENTARY INFORMATION:
PO 00000
Frm 00001
Fmt 4702
Sfmt 4702
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–2009–1229; Directorate Identifier
2009–NM–106–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 have lengthened the 30-day
comment period for proposed ADs that
address MCAI originated by aviation
authorities of other countries to provide
adequate time for interested parties to
submit comments. The comment period
for these proposed ADs is now typically
45 days, which is consistent with the
comment period for domestic transport
ADs.
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,
which is the aviation authority for
Canada, has issued Canadian
Airworthiness Directive CF–2009–19,
dated April 29, 2009 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
A specific batch of nose landing gear (NLG)
and NLG door selector valves, part number
(P/N) 601R75146–1 (Kaiser Fluid
Technologies P/N 750006000), may have had
their end caps incorrectly lock-wired and/or
incorrectly torqued during assembly. This
condition can lead to the end cap backing off,
with consequent damage to a seal and
internal leakage within the valve.
Subsequently, if electrical power is
transferred or removed from the aircraft
before the NLG safety pin is installed, any
pressure, including residual pressure, in the
No. 3 hydraulic system can result in an
uncommanded NLG retraction and/or
uncommanded opening of the NLG doors.
There have been six cases reported on
CL600–2B19 aircraft, one of which resulted
in the collapse of the NLG at the departure
gate.
This directive mandates [an inspection of
the NLG and NLG selector valves to
E:\FR\FM\05JAP1.SGM
05JAP1
Federal Register / Vol. 75, No. 2 / Tuesday, January 5, 2010 / Proposed Rules
determine the serial number and marking of
the part and] a check [to determine the torque
value and correct lockwire installation] of the
[affected] NLG and NLG door selector valves
installed on all aircraft in the Applicability
section * * *. Depending on the results,
replacement, rework and/or additional
identification of the valves may be required.
You may obtain further information
by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier has issued Service
Bulletin 601R–32–104, dated March 3,
2009. 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.
srobinson on DSKHWCL6B1PROD with PROPOSALS
Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 652 products of U.S.
registry. We also estimate that it would
take about 1 work-hour per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $80 per work-hour. Required
parts would cost about $40 per product.
Where the service information lists
required parts costs that are covered
VerDate Nov<24>2008
16:40 Jan 04, 2010
Jkt 220001
under warranty, we have assumed that
there will be no charge for these costs.
As we do not control warranty coverage
for affected parties, some parties may
incur costs higher than estimated here.
Based on these figures, we estimate the
cost of the proposed AD on U.S.
operators to be $78,240, or $120 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, Incorporated by reference, Safety.
PO 00000
Frm 00002
Fmt 4702
Sfmt 4702
259
The Proposed Amendment
Accordingly, under the authority
delegated to me by the Administrator,
the FAA proposes to amend 14 CFR part
39 as follows:
PART 39—AIRWORTHINESS
DIRECTIVES
1. The authority citation for part 39
continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
Bombardier, Inc. (Type Certificate
Previously Held by Bombardier
Aerospace, Inc.; Canadair): Docket No.
FAA–2009–1229; Directorate Identifier
2009–NM–106–AD.
Comments Due Date
(a) We must receive comments by February
19, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc.
(Type Certificate previously held by
Bombardier Aerospace, Inc.; Canadair) Model
CL–600–2B19 (Regional Jet Series 100 & 440)
airplanes, serial numbers 7003 and
subsequent; certificated in any category.
Subject
(d) Air Transport Association (ATA) of
America Code 32: Landing Gear.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
A specific batch of nose landing gear (NLG)
and NLG door selector valves, part number
(P/N) 601R75146–1 (Kaiser Fluid
Technologies P/N 750006000), may have had
their end caps incorrectly lock-wired and/or
incorrectly torqued during assembly. This
condition can lead to the end cap backing off,
with consequent damage to a seal and
internal leakage within the valve.
Subsequently, if electrical power is
transferred or removed from the aircraft
before the NLG safety pin is installed, any
pressure, including residual pressure, in the
No. 3 hydraulic system can result in an
uncommanded NLG retraction and/or
uncommanded opening of the NLG doors.
There have been six cases reported on
CL600–2B19 aircraft, one of which resulted
in the collapse of the NLG at the departure
gate.
This directive mandates [an inspection of
the NLG and NLG selector valves to
determine the serial number and marking of
the part and] a check [to determine the torque
value and correct lockwire installation] of the
[affected] NLG and NLG door selector valves
installed on all aircraft in the Applicability
section * * *. Depending on the results,
replacement, rework and/or additional
identification of the valves may be required.
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05JAP1
260
Federal Register / Vol. 75, No. 2 / Tuesday, January 5, 2010 / Proposed Rules
Actions and Compliance
(f) Unless already done, do the following
actions.
(1) Within 1,600 flight hours or 18 months
after the effective date of this AD, whichever
occurs first: Do an inspection to determine
the serial number and identification
markings on the selector valve of the NLG
and the door selector valve of the NLG, in
accordance with the Accomplishment
Instructions of Bombardier Service Bulletin
601R–32–104, dated March 3, 2009.
(2) For any airplane having both the
selector valve of the NLG and the door
selector valve of the NLG that have a serial
number outside the range 0001 through 2126
inclusive, suffix ‘‘T’’ identification, or
‘‘SB750006000–1’’ marking, no further action
is required for that valve.
(3) For any selector valve of the NLG or any
door selector valve of the NLG that does not
have any serial number or identification
marking specified in paragraph (f)(2) of this
AD: Before further flight, after doing the
inspection required by paragraph (f)(1) of this
AD, inspect to determine the torque value
and correct lockwire installation of the valve,
and modify (replace, rework, or re-identify)
the valve, as applicable, in accordance with
the Accomplishment Instructions of
Bombardier Service Bulletin 601R–32–104,
dated March 3, 2009.
FAA AD Differences
srobinson on DSKHWCL6B1PROD with PROPOSALS
Note 1: This AD differs from the MCAI
and/or service information as follows: No
differences.
16:40 Jan 04, 2010
Jkt 220001
Issued in Renton, Washington, on
December 23, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. E9–31290 Filed 1–4–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2009–1231; Directorate
Identifier 2009–NM–212–AD]
RIN 2120–AA64
Airworthiness Directives; Empresa
Brasileira de Aeronautica S.A.
(EMBRAER) Model ERJ 170 Airplanes;
and Model ERJ 190–100 STD, –100 LR,
–100 IGW, –200 STD, –200 LR, and
–200 IGW Airplanes
Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
AGENCY:
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), ANE–170, 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:
Program Manager, Continuing Operational
Safety, FAA, New York ACO, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7300; fax (516)
794–5531. Before using any approved AMOC
on any airplane to which the AMOC applies,
notify your principal maintenance inspector
(PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal
inspector, your local Flight Standards District
Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any
requirement in this AD to obtain corrective
actions from a manufacturer or other source,
use these actions if they are FAA-approved.
Corrective actions are considered 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
(44 U.S.C. 3501 et seq.), the Office of
Management and Budget (OMB) has
approved the information collection
requirements and has assigned OMB Control
Number 2120–0056.
VerDate Nov<24>2008
Related Information
(h) Refer to MCAI Canadian Airworthiness
Directive CF–2009–19, dated April 29, 2009;
and Bombardier Service Bulletin 601R–32–
104, dated March 3, 2009; for related
information.
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: It has been found the
possibility of missing points of sealant
application on the vapor barrier
assembly in the wing stub rear box. In
the event of fuel tank leak in this region
associated with an unsealed vapor
barrier assembly, migration of
flammable vapors and fluids to middle
electronic bay may occur, which then
could lead to an uncontained fire event
if the flammable vapors finds an
ignition source. 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 February 19, 2010.
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.
PO 00000
Frm 00003
Fmt 4702
Sfmt 4702
• Mail: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue, SE.,
Washington, DC 20590.
• Hand Delivery: U.S. Department of
Transportation, Docket Operations, M–
30, West Building Ground Floor, Room
W12–140, 1200 New Jersey Avenue, SE.,
Washington, DC, between 9 a.m. and
5 p.m., Monday through Friday, except
Federal holidays.
For service information identified in
this proposed AD, contact Empresa
Brasileira de Aeronautica S.A.
(EMBRAER), Technical Publications
Section (PC 060), Av. Brigadeiro Faria
˜
Lima, 2170—Putim—12227–901 Sao
Jose dos Campos—SP—BRASIL;
telephone: +55 12 3927–5852 or +55 12
3309–0732; fax: +55 12 3927–7546;
e-mail: distrib@embraer.com.br;
Internet: https://www.flyembraer.com.
You may review copies of the
referenced service information 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.
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:
Kenny Kaulia, Aerospace Engineer,
International Branch, ANM–116,
Transport Airplane Directorate, FAA,
1601 Lind Avenue, SW., Renton,
Washington 98057–3356; telephone
(425) 227–2848; 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–2009–1231; Directorate Identifier
2009–NM–212–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
E:\FR\FM\05JAP1.SGM
05JAP1
Agencies
[Federal Register Volume 75, Number 2 (Tuesday, January 5, 2010)]
[Proposed Rules]
[Pages 258-260]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: E9-31290]
========================================================================
Proposed Rules
Federal Register
________________________________________________________________________
This section of the FEDERAL REGISTER contains notices to the public of
the proposed issuance of rules and regulations. The purpose of these
notices is to give interested persons an opportunity to participate in
the rule making prior to the adoption of the final rules.
========================================================================
Federal Register / Vol. 75, No. 2 / Tuesday, January 5, 2010 /
Proposed Rules
[[Page 258]]
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2009-1229; Directorate Identifier 2009-NM-106-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. (Type Certificate
Previously Held by Bombardier Aerospace, Inc.; Canadair) Model CL-600-
2B19 (Regional Jet Series 100 & 440) 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:
A specific batch of nose landing gear (NLG) and NLG door
selector valves, part number (P/N) 601R75146-1 (Kaiser Fluid
Technologies P/N 750006000), may have had their end caps incorrectly
lock-wired and/or incorrectly torqued during assembly. This
condition can lead to the end cap backing off, with consequent
damage to a seal and internal leakage within the valve.
Subsequently, if electrical power is transferred or removed from the
aircraft before the NLG safety pin is installed, any pressure,
including residual pressure, in the No. 3 hydraulic system can
result in an uncommanded NLG retraction and/or uncommanded opening
of the NLG doors. There have been six cases reported on CL600-2B19
aircraft, one of which resulted in the collapse of the NLG at the
departure gate.
* * * * *
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 February 19,
2010.
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.
For service information identified in this proposed 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. You
may review copies of the referenced service information 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.
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: Cesar Gomez, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7318; 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-2009-1229;
Directorate Identifier 2009-NM-106-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 have lengthened the 30-day comment period for proposed ADs that
address MCAI originated by aviation authorities of other countries to
provide adequate time for interested parties to submit comments. The
comment period for these proposed ADs is now typically 45 days, which
is consistent with the comment period for domestic transport ADs.
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, which is the aviation authority
for Canada, has issued Canadian Airworthiness Directive CF-2009-19,
dated April 29, 2009 (referred to after this as ``the MCAI''), to
correct an unsafe condition for the specified products. The MCAI
states:
A specific batch of nose landing gear (NLG) and NLG door
selector valves, part number (P/N) 601R75146-1 (Kaiser Fluid
Technologies P/N 750006000), may have had their end caps incorrectly
lock-wired and/or incorrectly torqued during assembly. This
condition can lead to the end cap backing off, with consequent
damage to a seal and internal leakage within the valve.
Subsequently, if electrical power is transferred or removed from the
aircraft before the NLG safety pin is installed, any pressure,
including residual pressure, in the No. 3 hydraulic system can
result in an uncommanded NLG retraction and/or uncommanded opening
of the NLG doors. There have been six cases reported on CL600-2B19
aircraft, one of which resulted in the collapse of the NLG at the
departure gate.
This directive mandates [an inspection of the NLG and NLG
selector valves to
[[Page 259]]
determine the serial number and marking of the part and] a check [to
determine the torque value and correct lockwire installation] of the
[affected] NLG and NLG door selector valves installed on all
aircraft in the Applicability section * * *. Depending on the
results, replacement, rework and/or additional identification of the
valves may be required.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier has issued Service Bulletin 601R-32-104, dated March 3,
2009. 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 652 products of U.S. registry. We also estimate that
it would take about 1 work-hour per product to comply with the basic
requirements of this proposed AD. The average labor rate is $80 per
work-hour. Required parts would cost about $40 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 costs.
As we do not control warranty coverage for affected parties, some
parties may incur costs higher than estimated here. Based on these
figures, we estimate the cost of the proposed AD on U.S. operators to
be $78,240, or $120 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, Incorporated by
reference, Safety.
The Proposed Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
2. The FAA amends Sec. 39.13 by adding the following new AD:
Bombardier, Inc. (Type Certificate Previously Held by Bombardier
Aerospace, Inc.; Canadair): Docket No. FAA-2009-1229; Directorate
Identifier 2009-NM-106-AD.
Comments Due Date
(a) We must receive comments by February 19, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. (Type Certificate
previously held by Bombardier Aerospace, Inc.; Canadair) Model CL-
600-2B19 (Regional Jet Series 100 & 440) airplanes, serial numbers
7003 and subsequent; certificated in any category.
Subject
(d) Air Transport Association (ATA) of America Code 32: Landing
Gear.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
A specific batch of nose landing gear (NLG) and NLG door
selector valves, part number (P/N) 601R75146-1 (Kaiser Fluid
Technologies P/N 750006000), may have had their end caps incorrectly
lock-wired and/or incorrectly torqued during assembly. This
condition can lead to the end cap backing off, with consequent
damage to a seal and internal leakage within the valve.
Subsequently, if electrical power is transferred or removed from the
aircraft before the NLG safety pin is installed, any pressure,
including residual pressure, in the No. 3 hydraulic system can
result in an uncommanded NLG retraction and/or uncommanded opening
of the NLG doors. There have been six cases reported on CL600-2B19
aircraft, one of which resulted in the collapse of the NLG at the
departure gate.
This directive mandates [an inspection of the NLG and NLG
selector valves to determine the serial number and marking of the
part and] a check [to determine the torque value and correct
lockwire installation] of the [affected] NLG and NLG door selector
valves installed on all aircraft in the Applicability section * * *.
Depending on the results, replacement, rework and/or additional
identification of the valves may be required.
[[Page 260]]
Actions and Compliance
(f) Unless already done, do the following actions.
(1) Within 1,600 flight hours or 18 months after the effective
date of this AD, whichever occurs first: Do an inspection to
determine the serial number and identification markings on the
selector valve of the NLG and the door selector valve of the NLG, in
accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 601R-32-104, dated March 3, 2009.
(2) For any airplane having both the selector valve of the NLG
and the door selector valve of the NLG that have a serial number
outside the range 0001 through 2126 inclusive, suffix ``T''
identification, or ``SB750006000-1'' marking, no further action is
required for that valve.
(3) For any selector valve of the NLG or any door selector valve
of the NLG that does not have any serial number or identification
marking specified in paragraph (f)(2) of this AD: Before further
flight, after doing the inspection required by paragraph (f)(1) of
this AD, inspect to determine the torque value and correct lockwire
installation of the valve, and modify (replace, rework, or re-
identify) the valve, as applicable, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 601R-32-
104, dated March 3, 2009.
FAA AD Differences
Note 1: 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), ANE-170, 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: Program
Manager, Continuing Operational Safety, FAA, New York ACO, 1600
Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516)
228-7300; fax (516) 794-5531. Before using any approved AMOC on any
airplane to which the AMOC applies, notify your principal
maintenance inspector (PMI) or principal avionics inspector (PAI),
as appropriate, or lacking a principal inspector, your local Flight
Standards District Office. The AMOC approval letter must
specifically reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
(3) Reporting Requirements: For any reporting requirement in
this AD, under the provisions of the Paperwork Reduction Act (44
U.S.C. 3501 et seq.), 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-2009-19,
dated April 29, 2009; and Bombardier Service Bulletin 601R-32-104,
dated March 3, 2009; for related information.
Issued in Renton, Washington, on December 23, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. E9-31290 Filed 1-4-10; 8:45 am]
BILLING CODE 4910-13-P