[Federal Register Volume 76, Number 63 (Friday, April 1, 2011)]
[Rules and Regulations]
[Pages 18024-18029]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-6630]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0436; Directorate Identifier 2009-NM-230-AD;
Amendment 39-16643; AD 2011-07-06]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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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:
* * * There have recently been several in-service occurrences that
have highlighted the inability of the existing [wing anti-ice]
system to detect a low-heat condition in the wing leading edge at
all times, with the potential consequence of unannunciated
asymmetric ice build-up on the wing. * * *
[[Page 18025]]
Such a condition, in combination with maneuvers close to stick
shaker activation, could possibly result in reduced controllability
of the aircraft.
* * * * *
We are issuing this AD to require actions to correct the unsafe
condition on these products.
DATES: This AD becomes effective May 6, 2011.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of May 6, 2011.
ADDRESSES: You may examine the AD docket on the Internet at http://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: Wing Chan, Aerospace Engineer,
Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228-7311; 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 May 10, 2010 (75 FR
25788). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
At present, the Wing Anti-Ice System (WAIS) sufficient heat
switches/sensors on CL-600-2B19 aircraft are located at the inboard
end of each wing and require a simultaneous low-pressure signal to
generate a L or R WING A/ICE amber caution. However, there have
recently been several in-service occurrences that have highlighted
the inability of the existing system to detect a low-heat condition
in the wing leading edge at all times, with the potential
consequence of unannunciated asymmetric ice build-up on the wing.
These have included partial failure of several piccolo ducts [ref:
Airworthiness Directive (AD) CF-2008-30] and partial (not fully
closed or open) failure of a modulating and shut-off valve, the
latter resulting in unannunciated asymmetric ice build-up on the
wing leading edge. Such a condition, in combination with maneuvers
close to stick shaker activation, could possibly result in reduced
controllability of the aircraft.
This directive mandates:
(a) Revision of the Airplane Flight Manual (AFM) to notify the
flight crew that, following installation and activation of the low-
heat detection switches, certain WAIS mode selection changes may
result in a two-minute inhibition of the wing anti-ice message, if
posted;
(b) Revision of the approved maintenance schedule to include one
revised and three new functional checks that are required following
activation of the low-heat detection switches;
(c) Replacement of the Data Concentrator Units (DCUs) with DCUs
incorporating a software update that caters for the new outboard
low-heat detection switches and generates the appropriate anti-ice
message for the flight crew when a low-heat condition is detected;
Note: Although not related to this directive, the software
update also corrects the sampling rate of two previously non-
compliant Flight Data Recorder (FDR) parameters, normal acceleration
and pitch attitude.
(d) Installation of the low-heat detection switches in the wing
outboard leading edges, the wing A/ICE box assembly and associated
wires; and
(e) Activation of the low-heat detection switches.
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 considered the comments received.
Support for the NPRM
Air Line Pilots Association, International (ALPA) stated that it
agrees that all reasonable steps should be taken to avoid reduced
controllability while operating in icing conditions. ALPA stated that
it supports the NPRM, but also encouraged the FAA to implement it as
soon as possible to enable full compliance before winter.
Requests To Revise Costs of Compliance
Limited Brands and Air Wisconsin requested that we revise the costs
of compliance. Limited Brands disagreed with the estimate of 21 work-
hours and the cost of $1,785 per product to comply with the proposed
AD. Limited Brands stated that the modification of the data
concentrator unit (DCU), as required by paragraph (g)(3) of the NPRM,
costs $1,200, the installation required by paragraph (g)(4) of the NPRM
costs $3,300, and additional labor costs are $25,000, which brings the
actual cost to $30,000 per airplane. Air Wisconsin stated it calculated
that the costs are $600 for each of the two upgrades, $2,570 for other
required parts, and 70 work-hours--for a total of $9,720 per airplane.
We agree to revise the Costs of Compliance section of this AD. We
have based our cost estimate on the service information and information
from the manufacturer, and have calculated the costs for complying with
the AD as follows: 2 work-hours for revising the Limitations section of
the AFM and the ALI; 3 work-hours for replacing the DCU; 72 work-hours
for installing the switches, assemblies, and wires; and 4 work-hours
for activating the switches. We also calculated $4,500 for parts. We
revised the Costs of Compliance section of this AD accordingly.
Request To Clarify the Modification to the Wing Leading Edges
Air Wisconsin requested clarification regarding the modification of
the wing leading edges. Air Wisconsin noted that the effectivity is
against the airplane models but Bombardier Service Bulletin 601R-30-
031, Revision D, dated February 3, 2010, specifies modifying the
leading edges, which was not addressed in the NPRM. Air Wisconsin noted
that, if a non-modified spare leading edge is installed, there could be
cause for confusion.
We agree to provide clarification. The actions required by
paragraph (g)(4) of this AD include modifying the leading edges.
Request To Revise the Compliance Time for Requirements of Paragraph
(g)(2) of the NPRM for Task C30-10-141-01
Mesa Airlines requested that we clarify the requirements of
paragraph (g)(2) of the NPRM for Task C30-10-141-01. Mesa Airlines
stated that on page 2A-11 of Appendix A of Part 2 of the Bombardier CL-
600-2B19 Maintenance Requirement Manual (MRM), Task C30-10-141-10
provides the functional check of the wing anti-ice standby overheat
switches and overheat/sufficient heat sensors and associated circuitry
with an interval of 6,000 flight hours. Mesa Airlines stated that page
1-2-35 of Section 2 of Part 1 of the Bombardier CL-600-2B19 Maintenance
Review Board (MRB) Report, Task 30-12-12-01, ``Functional check of the
wing anti-ice overheat sensors (duplicate Certification Maintenance
Requirements (CMR) C30-10-141-01),'' provides a compliance time of
4,000 flight hours. Mesa Airlines also stated that page 1-1-6 of
Section 1 of Part 1 of the Bombardier CL-600-2B19 MRM states the
following in Note 15: ``This task has a duplicate CMR requirement.
Refer to Maintenance Requirements Manual, CSP-A-053, Part 2, Appendix
A, for identification of specific requirements regarding handling of
CMRs. Where the CMR interval for an MRB report task is more
restrictive, the CMR interval takes precedence. When the interval for
an MRB report task is more restrictive, the
[[Page 18026]]
MRB report task interval will take precedence.''
Mesa Airlines asked that we clarify the NPRM as to which interval
needs to be tracked--6,000 flight hours or 4,000 flight hours.
We agree to clarify. The intent of the AD is to introduce the CMR
tasks that are associated with the new switches. CMR Task C30-10-141-01
was inadvertently mandated in Canadian AD CF-2009-37 and was carried
over into the NPRM. The MRB group is currently looking into harmonizing
these task intervals. Therefore, we have removed CMR Task C30-10-141-01
from Table 1 of this final rule.
Request To Clarify Required Service Information
Air Wisconsin requested that we clarify the name of the service
information in paragraph (g)(2) of the NPRM. Air Wisconsin stated that
paragraph (g)(2) of the NPRM refers to ``Airworthiness Limitations
Instructions.'' Air Wisconsin asked if it should instead be
``Bombardier CL-600-2B19 Maintenance Requirements Manual (MRM),
Appendix A, Certification Maintenance Requirements (CMR).''
We agree with the commenter's suggested service information
citation. We have changed paragraph (g)(2) of this final rule
accordingly.
Request To Revise Compliance Time in Table 1 of the NPRM
Air Wisconsin requested that we revise the compliance time in Table
1 of the NPRM. Air Wisconsin stated that under the column heading
``Initial Compliance Time (whichever occurs later)'' for Tasks C30-10-
141-03, C30-10-141-05, and C30-10-141-07 in Table 1, the compliance
time under that column heading should read ``Before the accumulation of
6,000 flight hours, or if previously accomplished, within 6,000 flight
hours since last accomplishment, whichever comes first.'' The commenter
did not provide a reason for these suggestions.
We agree with the commenter's suggested change. The intent of Table
1 is to establish the initial compliance times for accomplishment of
the specified tasks because only repetitive intervals are specified in
Bombardier TR 2A-46, dated July 24, 2009. However, we acknowledge that
some operators might have previously accomplished the initial tasks and
could be doing those tasks repetitively. The commenter's suggested
language would provide credit for earlier accomplishment of the tasks
for those operators. We have revised Table 1 to include the language
suggested by the commenter.
Request To Remove Note 3 of the NPRM
Air Wisconsin requested to remove Note 3 from the NPRM. Air
Wisconsin stated that the inspection requirements in Bombardier
Temporary Revision (TR) 2A-46, dated July 24, 2009, are already
contained in the general revision of the MRM, specifically, Revision 9,
dated December 10, 2009. Air Wisconsin stated that this updated general
revision makes Note 3 irrelevant and, therefore, the note should be
removed.
We disagree. The note is necessary to keep operators in compliance
when the TR is incorporated into general revisions. Operators that have
a revision of the MRM that contains the information in Bombardier TR
2A-46 are in compliance. We have not changed the final rule in regard
to this issue.
Request To Remove Note 4 of the NPRM
Air Wisconsin requested we remove Note 4 from the NPRM. Air
Wisconsin stated this note is not pertinent to the content of the NPRM
because Task 30-11-41-820-801 is not part of Bombardier Service
Bulletin 601R-30-031, Revision D, dated February 3, 2010, and should be
removed.
We disagree. Task 30-11-41-820-801 is pertinent to this AD because
it is part of the Bombardier CRJ Series Regional Jet Aircraft
Maintenance Manual, and it provides guidance to correct alignment of
the piccolo ducts since a small number of cases have been reported in
which they were found to have been installed in the opposing wing,
resulting in the incorrect orientation of the bleed holes. One of the
requirements of this AD is to install the low-heat direction switches
in the wing outboard leading edges. This task requires particular
attention to the correct alignment of the piccolo ducts after the
installation of the low-heat detection switches. We have not changed
the final rule in regard to this issue.
Request To Revise Compliance Time for Requirements of Paragraph (g)(5)
of the NPRM
Air Wisconsin, Mesaba Airlines, and Mesa Airlines requested that we
revise the compliance time for activating the outboard low-heat
detection switches, as proposed by paragraph (g)(5) of the NPRM. Air
Wisconsin requested that incorporating the procedures specified in Part
F of the Accomplishment Instructions of Bombardier Service Bulletin
601R-30-031, Revision D, dated February 3, 2010, should be performed at
the next heavy maintenance visit, provided that parts (kits) are
available. Air Wisconsin stated that it has scheduled these tasks to be
completed by the end of December 2011. Mesaba Airlines requested that
the compliance time in paragraph (g) of the NPRM be revised from 11
months to 5,000 flight hours after the effective date of this AD.
Mesaba Airlines stated that the 11-month compliance time for the
modification will result in extended downtime and cause interruptions.
Mesa Airlines stated that it agrees with Mesaba Airlines' request to
change the compliance time from months to hours.
We disagree. In developing the compliance time for this AD action,
we considered not only the safety implications of the identified unsafe
condition, but the average utilization rate of the affected fleet, the
practical aspects of an orderly modification of the fleet during
regular maintenance periods, the availability of required parts, and
the time necessary for the rulemaking process. The proposed compliance
time, which is based on the effective date of the final rule, was
determined to be appropriate. However, under the provisions of
paragraph (h) of the final rule, we will consider requests for approval
of an extension of the compliance time if sufficient data are submitted
to substantiate that the change would provide an acceptable level of
safety. We have not changed the final rule in regard to this issue.
Clarification of Changes to This AD
We have revised paragraph (e) of this AD by removing some text and
retaining only the text that applies to the Reason section of this AD.
In addition, we have removed paragraph (h)(3) of the NPRM because
this AD does not contain a reporting requirement.
Conclusion
We reviewed the available data, including the comments received,
and determined that air safety and the public interest require adopting
the AD with the changes described previously. We determined that these
changes will not increase the economic burden on any operator or
increase the scope of the AD.
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
[[Page 18027]]
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 affects 599 products of U.S. registry. We
also estimate that it takes about 81 work-hours per product to comply
with the basic requirements of this AD. The average labor rate is $85
per work-hour. Parts cost $4,500 per product. Based on these figures,
we estimate the cost of this AD to the U.S. operators to be $6,819,615,
or $11,385 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 http://www.regulations.gov; or in person at the Docket Operations office
between 9 a.m. and 5 p.m., Monday through Friday, except Federal
holidays. The AD docket contains the NPRM, the regulatory evaluation,
any comments received, and other information. The street address for
the Docket Operations office (telephone (800) 647-5527) is in the
ADDRESSES section. Comments will be available in the AD docket shortly
after receipt.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
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:
2011-07-06 Bombardier, Inc.: Amendment 39-16643. Docket No. FAA-
2010-0436; Directorate Identifier 2009-NM-230-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective May 6,
2011.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2B19
(Regional Jet Series 100 & 440) airplanes, certificated in any
category, serial numbers 7003 through 8101 inclusive.
Note 1: This AD requires revisions to certain operator
maintenance documents to include new inspections. Compliance with
these inspections is required by 14 CFR 91.403(c). For airplanes
that have been previously modified, altered, or repaired in the
areas addressed by these inspections, the operator may not be able
to accomplish the inspections described in the revisions. In this
situation, to comply with 14 CFR 91.403(c), the operator must
request approval for an alternative method of compliance according
to paragraph (h)(1) of this AD. The request should include a
description of changes to the required inspections that will ensure
the continued operational safety of the airplane.
Subject
(d) Air Transport Association (ATA) of America Code 30 and 31:
Ice and rain protection, and instruments, respectively.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
* * * There have recently been several in-service occurrences that
have highlighted the inability of the existing [wing anti-ice]
system to detect a low-heat condition in the wing leading edge at
all times, with the potential consequence of unannunciated
asymmetric ice build-up on the wing. * * * Such a condition, in
combination with maneuvers close to stick shaker activation, could
possibly result in reduced controllability of the aircraft.
* * * * *
Compliance
(f) You are responsible for having the actions required by this
AD performed within the compliance times specified, unless the
actions have already been done.
Actions
(g) Do the following actions.
(1) Within 30 days after the effective date of this AD, revise
the Limitations and Normal Procedures sections of the Canadair
Regional Jet Airplane Flight Manual (AFM), CSP A-012, to include the
information in Canadair (Bombardier) Temporary Revision (TR) RJ/164-
2, dated May 14, 2009. This TR introduces procedures for operation
in icing conditions. Operate the airplane according to the
limitations and procedures in this TR.
Note 2: This may be done by inserting a copy of Canadair
(Bombardier) TR RJ/164-2, dated May 14, 2009, into the AFM. When
this TR has been included in general revisions of the AFM, the
general revisions may be inserted in the AFM, provided the relevant
information in the general revision is identical to that in Canadair
(Bombardier) TR RJ/164-2, dated May 14, 2009.
(2) Within 30 days after the effective date of this AD, revise
the maintenance program by incorporating the inspection requirements
for Tasks C30-10-141-03, C30-10-141-05, and C30-10-141-07, contained
in Bombardier TR 2A-46, dated July 24, 2009, into Appendix A,
``Certification Maintenance Requirements,'' of Part 2 of the
Bombardier CL-600-2B19 Maintenance Requirements Manual (MRM). The
initial compliance times for the tasks identified in Bombardier TR
2A-46, dated July 24, 2009, are specified in Table 1 of this AD.
Note 3: The actions required by paragraph (g)(2) of this AD may
be done by inserting a copy of Bombardier TR 2A-46, dated July 24,
2009, into the Bombardier CL-600-2B19 MRM. When this TR has been
included in general revisions of the MRM, the general revisions may
be inserted into the MRM, provided the relevant information in the
general revision is identical to that in Bombardier TR 2A-46, dated
July 24, 2009.
[[Page 18028]]
Table 1--Initial Compliance Times for Tasks in Bombardier TR 2A-46
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Task Applicability Initial compliance time (whichever occurs later)
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C30-10-141-03................. Airplanes on which Before the accumulation Within 5 flight hours or
Modification Summary of 6,000 total flight 30 days after the
TC601R17494 or actions hours; or if effective date of this
specified in Bombardier accomplished previously, AD, whichever occurs
Service Bulletin 601R-30- within 6,000 flight later.
031 have been done. hours since this task
was last accomplished.
C30-10-141-05................. Airplanes with outboard Before the accumulation Within 5 flight hours or
sufficient heat switches of 6,000 total flight 30 days after the
installed in accordance hours; or if effective date of this
with Modification Summary accomplished previously, AD, whichever occurs
TC601R17494 or actions within 6,000 flight later.
specified in Bombardier hours since this task
Service Bulletin 601R-30- was last accomplished.
031 have been done.
C30-10-141-07................. Airplanes with outboard Before the accumulation Within 5 flight hours or
sufficient heat switches of 6,000 total flight 30 days after the
installed in accordance hours; or if effective date of this
with Modification Summary accomplished previously, AD, whichever occurs
TC601R17494 or actions within 6,000 flight later.
specified in Bombardier hours since this task
Service Bulletin 601R-30- was last accomplished.
031 have been done.
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(3) For airplanes having S/Ns 7003 through 8095 inclusive:
Before or concurrently with accomplishing the actions required by
paragraph (g)(5) of this AD: Replace any data concentrator units
(DCUs) having part number (P/N) 622-9820-007, 622-9820-008, or 622-
9820-009 with modified DCUs having P/N 622-9820-010, and, if
applicable, modify the configuration strapping units (CSUs), in
accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 601R-31-034, Revision A, dated April 10, 2008.
(4) Before or concurrently with accomplishing the actions
required by paragraph (g)(5) of this AD: Install the outboard low-
heat detection switches, and wing A/ICE box assembly and its
associated wires, in accordance with the Accomplishment Instructions
of Parts A, C, D, and E of Bombardier Service Bulletin 601R-30-031,
Revision D, dated February 3, 2010.
Note 4: A small number of cases have been reported in which
piccolo ducts were found to have been installed in the opposite
wing, resulting in the incorrect orientation of the bleed holes.
During reinstallation of the piccolo ducts and leading edge
assemblies after installing the low-heat detection switches,
particular attention should be paid to the correct alignment of the
piccolo ducts. Guidance can be found in Task 30-11-41-820-801 of the
Canadair CRJ Series Regional Jet Aircraft Maintenance Manual.
(5) Within 11 months after the effective date of this AD:
Activate the outboard low-heat detection switches in accordance with
Part F of the Accomplishment Instructions of Bombardier Service
Bulletin 601R-30-031, Revision D, dated February 3, 2010.
(6) Actions accomplished in accordance with the service
information specified in Table 2 of this AD, before the effective
date of this AD, are acceptable for compliance with the
corresponding actions required by paragraphs (g)(4) and (g)(5) of
this AD.
Table 2--Acceptable Service Information
----------------------------------------------------------------------------------------------------------------
Bombardier Service Bulletin-- Revision-- Dated--
----------------------------------------------------------------------------------------------------------------
601R-30-031............................. Original................... May 15, 2009.
601R-30-031............................. A.......................... September 8, 2009.
601R-30-031............................. B.......................... October 28, 2009.
601R-30-031............................. C.......................... December 23, 2009.
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(7) Replacing DCUs P/N 622-9820-007, 622-9820-008, or 622-9820-
009 with modified DCUs having P/N 622-9820-010, and modifying CSUs,
are also acceptable for compliance with the requirements of
paragraph (g)(3) of this AD if done before the effective date of
this AD, in accordance with Accomplishment Instructions of
Bombardier Service Bulletin 601R-30-034, dated November 19, 2007.
FAA AD Differences
Note 5: This AD differs from the MCAI and/or service
information as follows: The MCAI specifies to include the revised
Task C30-10-141-01. This AD does not include Task 30-10-141-01. This
difference has been coordinated with TCCA.
Other FAA AD Provisions
(h) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office (ACO), ANE-170, FAA, has the
authority to approve AMOCs for this AD, if requested using the
procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19,
send your request to your principal inspector or local Flight
Standards District Office, as appropriate. If sending information
directly to the ACO, send it to ATTN: Program Manager, Continuing
Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite
410, Westbury, New York 11590; telephone 516-228-7300; fax 516-794-
5531. Before using any approved AMOC, notify your appropriate
principal inspector, or lacking a principal inspector, the manager
of the local flight standards district office/certificate holding
district office. The AMOC approval letter must specifically
reference this AD.
(2) Airworthy Product: For any requirement in this AD to obtain
corrective actions from a manufacturer or other source, use these
actions if they are FAA-approved. Corrective actions are considered
FAA-approved if they are approved by the State of Design Authority
(or their delegated agent). You are required to assure the product
is airworthy before it is returned to service.
Related Information
(i) Refer to MCAI Transport Canada Civil Aviation (TCCA)
Airworthiness Directive CF-2009-37, dated September 30, 2009; and
the service information specified in Table 3 of this AD; for related
information.
[[Page 18029]]
Table 3--Service Information
----------------------------------------------------------------------------------------------------------------
Service information Revision Date
----------------------------------------------------------------------------------------------------------------
Bombardier Service Bulletin 601R-30-031............ D........................ February 3, 2010.
Bombardier Service Bulletin 601R-31-034............ A........................ April 10, 2008.
Bombardier Temporary Revision 2A-46 to Appendix A-- Original................. July 24, 2009.
Certification Maintenance Requirements of Part 2
of the Bombardier CL[dash]600-2B19 Maintenance
Requirements Manual.
Canadair (Bombardier) Temporary Revision RJ/164-2 Original................. May 14, 2009.
to the Canadair Regional Jet Airplane Flight
Manual CSP A-012.
----------------------------------------------------------------------------------------------------------------
Material Incorporated by Reference
(j) You must use the service information contained in Table 4 of
this AD, as applicable, to do the actions required by this AD,
unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail [email protected]; Internet http://www.bombardier.com.
(3) You may review copies of the 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.
(4) You may also review copies of the service information that
is incorporated by reference 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: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Table 4--Material Incorporated by Reference
----------------------------------------------------------------------------------------------------------------
Service information Revision Date
----------------------------------------------------------------------------------------------------------------
Bombardier Service Bulletin 601R-30-031............ D........................ February 3, 2010.
Bombardier Service Bulletin 601R-31-034............ A........................ April 10, 2008.
Bombardier Temporary Revision 2A-46 to Appendix A-- Original................. July 24, 2009.
Certification Maintenance Requirements of Part 2
of the Bombardier CL-600-2B19 Maintenance
Requirements Manual.
Canadair (Bombardier) Temporary Revision RJ/164-2 Original................. May 14, 2009.
to the Canadair Regional Jet Airplane Flight
Manual CSP A-012.
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Issued in Renton, Washington, on March 14, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-6630 Filed 3-31-11; 8:45 am]
BILLING CODE 4910-13-P