Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes, 25788-25791 [2010-10884]
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25788
Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
Issued in Renton, Washington, on April 30,
2010.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2010–10996 Filed 5–7–10; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2010–0436; Directorate
Identifier 2009–NM–230–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. 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:
* * * There have recently been several inservice 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.
mstockstill on DSKH9S0YB1PROD with PROPOSALS
*
*
*
*
*
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 June 24, 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
VerDate Mar<15>2010
16:19 May 07, 2010
Jkt 220001
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; email 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.
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,
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:
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–2010–0436; Directorate Identifier
2009–NM–230–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.
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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–2009–37,
dated September 30, 2009 (referred to
after this as ‘‘the MCAI’’), 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 inservice 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 twominute 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 noncompliant 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.
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Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
Relevant Service Information
Bombardier has issued the service
information in the following table.
TABLE—SERVICE INFORMATION
Service information
Revision
Bombardier Service Bulletin 601R–30–031 .............................................................................................
Bombardier Service Bulletin 601R–31–034 .............................................................................................
Bombardier Temporary Revision 2A–46 to Appendix A—Certification Maintenance Requirements of
Part 2 of the Bombardier Maintenance Requirements Manual.
Bombardier Temporary Revision RJ/164–2 to the Canadair Regional Jet Airplane Flight Manual, CSP
A–012.
D ...........................
A ............................
Original ..................
February 3, 2010.
April 10, 2008.
July 24, 2009.
Original ..................
May 14, 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.
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Costs of Compliance
Based on the service information, we
estimate that this proposed AD would
affect about 599 products of U.S.
registry. We also estimate that it would
take about 21 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Based on
these figures, we estimate the cost of the
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Date
proposed AD on U.S. operators to be
$1,069,215, or $1,785 per product.
this proposed AD and placed it in the
AD docket.
Authority for This Rulemaking
List of Subjects in 14 CFR Part 39
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.
Air transportation, Aircraft, Aviation
safety, Incorporation by reference,
Safety.
Regulatory Findings
Comments Due Date
(a) We must receive comments by June 24,
2010.
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
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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.: Docket No. FAA–2010–
0436; Directorate Identifier 2009–NM–
230–AD.
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.
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Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
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:
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 inservice 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 twominute 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 noncompliant 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.
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 the 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 Airworthiness
Limitations Instructions (ALI) of the
Instructions for Continued Airworthiness
(ICA) by incorporating the inspection
requirements 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.
TABLE 1—INITIAL COMPLIANCE TIMES FOR TASKS IN BOMBARDIER TR 2A–46
Task
Applicabilty
C30–10–141–01 .........
All airplanes .......................................................................
Before the accumulation of
6,000 total flight hours.
C30–10–141–03 .........
Airplanes on which Modification Summary TC601R17494
or actions specified in Bombardier Service Bulletin
601R–30–031 have been done.
Airplanes with outboard sufficient heat switches installed
in
accordance
with
Modification
Summary
TC601R17494 or actions specified in Bombardier
Service Bulletin 601R–30–031 have been done.
Airplanes with outboard sufficient heat switches installed
in
accordance
with
Modification
Summary
TC601R17494 or actions specified in Bombardier
Service Bulletin 601R–30–031 have been done.
Before the accumulation of
6,000 total flight hours.
C30–10–141–05 .........
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C30–10–141–07 .........
(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.
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Initial compliance time
(whichever occurs later)
Before the accumulation of
6,000 total flight hours.
Before the accumulation of
6,000 total flight hours.
(4) Before or concurrently with
accomplishing the actions required by
paragraph (g)(5) of this AD: Install the
outboard low-heat detection switches, wing
A/ICE box assembly and 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
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Within 5 flight hours after
the effective date of this
AD.
Within 5 flight hours after
the effective date of this
AD.
Within 5 flight hours after
the effective date of this
AD.
Within 5 flight hours after
the effective date of this
AD.
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 Bombardier Aircraft
Maintenance Manual.
(5) Within 11 months after the effective
date of this AD: Activate the outboard lowheat detection switches in accordance with
Part F of the Accomplishment Instructions of
Service Bulletin 601R–30–031, Revision D,
dated February 3, 2010.
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Federal Register / Vol. 75, No. 89 / Monday, May 10, 2010 / Proposed Rules
(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
601R-30–031
601R-30–031
601R-30–031
Original ..................
A ............................
B ............................
C ............................
May 15, 2009.
September 8, 2009.
October 28, 2009.
December 23, 2009.
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
.......................................................................................................................................
(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: No
differences.
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. 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
(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.
TABLE 3—SERVICE INFORMATION
Service information
Revision
Bombardier Service Bulletin 601R–30–031 ........................................................................................
Bombardier Service Bulletin 601R–31–034 ........................................................................................
Bombardier Temporary Revision 2A–46 to Appendix A—Certification Maintenance Requirements
of Part 2 of the Bombardier CL-600–2B19 Maintenance Requirements Manual.
Canadair (Bombardier) Temporary Revision RJ/164–2 to the Canadair Regional Jet Airplane
Flight Manual CSP A–012.
D ............................
A ............................
Original ..................
February 3, 2010.
April 10, 2008.
July 24, 2009.
Original ..................
May 14, 2009.
Issued in Renton, Washington, on April 28,
2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane
Directorate, Aircraft Certification Service.
DEPARTMENT OF TRANSPORTATION
[FR Doc. 2010–10884 Filed 5–7–10; 8:45 am]
[Docket No. FAA–2010–0438; Directorate
Identifier 2009–NM–265–AD]
BILLING CODE 4910–13–P
Federal Aviation Administration
14 CFR Part 39
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RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Model CL–600–2C10 (Regional Jet
Series 700, 701, & 702) Airplanes,
Model CL–600–2D15 (Regional Jet
Series 705) Airplanes, and Model CL–
600–2D24 (Regional Jet Series 900)
Airplanes
AGENCY: Federal Aviation
Administration (FAA), DOT.
ACTION: Notice of proposed rulemaking
(NPRM).
We propose to adopt a new
airworthiness directive (AD) for the
products listed above that would
SUMMARY:
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Date
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:
The heating capability of several [angle of
attack] AOA transducer heating elements
removed from in-service aircraft has been
found to be below the minimum requirement.
Also, it was discovered that a large number
of AOA transducers repaired in an approved
maintenance facility were not calibrated
accurately.
Inaccurate calibration of the AOA
transducer and/or degraded AOA transducer
heating elements can result in early or late
activation of the stall warning, stick shaker
and stick pusher by the Stall Protection
Computer (SPC).
Inaccurate calibration of the AOA
transducers and/or degraded AOA
transducer heating elements could
result in an ineffective response to an
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]]>Agencies
[Federal Register Volume 75, Number 89 (Monday, May 10, 2010)]
[Proposed Rules]
[Pages 25788-25791]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2010-10884]
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-0436; Directorate Identifier 2009-NM-230-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. 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:
* * * 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.
* * * * *
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 June 24, 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.
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,
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:
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-2010-0436;
Directorate Identifier 2009-NM-230-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 (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2009-37, dated September 30, 2009 (referred to after this as ``the
MCAI''), 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.
[[Page 25789]]
Relevant Service Information
Bombardier has issued the service information in the following
table.
Table--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 Original.......................... July 24, 2009.
Appendix A--Certification Maintenance
Requirements of Part 2 of the
Bombardier Maintenance Requirements
Manual.
Bombardier Temporary Revision RJ/164-2 Original.......................... May 14, 2009.
to the Canadair Regional Jet Airplane
Flight Manual, CSP A-012.
----------------------------------------------------------------------------------------------------------------
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 599 products of U.S. registry. We also estimate that
it would take about 21 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Based on these figures, we estimate the cost of the proposed
AD on U.S. operators to be $1,069,215, or $1,785 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, Incorporation 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.: Docket No. FAA-2010-0436; Directorate Identifier
2009-NM-230-AD.
Comments Due Date
(a) We must receive comments by June 24, 2010.
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.
[[Page 25790]]
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:
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.
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 the 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 Airworthiness Limitations Instructions (ALI) of the Instructions
for Continued Airworthiness (ICA) by incorporating the inspection
requirements 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.
Table 1--Initial Compliance Times for Tasks in Bombardier TR 2A-46
----------------------------------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------------------------------
Task Applicabilty Initial compliance time
(whichever occurs later)
----------------------------------------------------------------------------------------------------------------
C30-10-141-01..................... All airplanes............... Before the Within 5 flight hours
accumulation of 6,000 after the effective
total flight hours. date of this AD.
C30-10-141-03..................... Airplanes on which Before the Within 5 flight hours
Modification Summary accumulation of 6,000 after the effective
TC601R17494 or actions total flight hours. date of this AD.
specified in Bombardier
Service Bulletin 601R-30-
031 have been done.
C30-10-141-05..................... Airplanes with outboard Before the Within 5 flight hours
sufficient heat switches accumulation of 6,000 after the effective
installed in accordance total flight hours. date of this AD.
with Modification Summary
TC601R17494 or actions
specified in Bombardier
Service Bulletin 601R-30-
031 have been done.
C30-10-141-07..................... Airplanes with outboard Before the Within 5 flight hours
sufficient heat switches accumulation of 6,000 after the effective
installed in accordance total flight hours. date of this AD.
with Modification Summary
TC601R17494 or actions
specified in Bombardier
Service Bulletin 601R-30-
031 have been done.
----------------------------------------------------------------------------------------------------------------
(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, wing A/ICE box assembly and 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
Bombardier 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 Service Bulletin 601R-
30-031, Revision D, dated February 3, 2010.
[[Page 25791]]
(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[dash]30-031...................... Original.......................... May 15, 2009.
601R[dash]30-031...................... A................................. September 8, 2009.
601R[dash]30-031...................... B................................. October 28, 2009.
601R[dash]30-031...................... C................................. December 23, 2009.
----------------------------------------------------------------------------------------------------------------
(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: No differences.
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. 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
(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.
Table 3--Service Information
----------------------------------------------------------------------------------------------------------------
Service information Revision Date
----------------------------------------------------------------------------------------------------------------
Bombardier Service Bulletin 601R-30- D................................. February 3, 2010.
031.
Bombardier Service Bulletin 601R-31- A................................. April 10, 2008.
034.
Bombardier Temporary Revision 2A-46 to Original.......................... July 24, 2009.
Appendix A--Certification Maintenance
Requirements of Part 2 of the
Bombardier CL[dash]600-2B19
Maintenance Requirements Manual.
Canadair (Bombardier) Temporary Original.......................... May 14, 2009.
Revision RJ/164-2 to the Canadair
Regional Jet Airplane Flight Manual
CSP A-012.
----------------------------------------------------------------------------------------------------------------
Issued in Renton, Washington, on April 28, 2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-10884 Filed 5-7-10; 8:45 am]
BILLING CODE 4910-13-P
