Airworthiness Directives; Bombardier, Inc. Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants) Airplanes, 59067-59069 [2011-24432]
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Federal Register / Vol. 76, No. 185 / Friday, September 23, 2011 / Proposed Rules
Regulatory Review Plan Under
Executive Order 13579
FHFA’s current review of OFHEO,
FHFB, and certain HUD regulations is
similar to the review it will conduct of
existing regulations under Executive
Order 13579. The regulatory review
plan is set forth below. FHFA will
conduct the review of its existing
regulations under Executive Order
13579 at least every five years. In light
of the recent establishment of FHFA and
ongoing regulatory activities mandated
by HERA and the Dodd-Frank Act, the
first review will begin no later than
August 2013, five years after the
establishment of FHFA. FHFA
regulations published in Chapter XII of
Title 12 of the Code of Federal
Regulations and are also posted on the
FHFA Internet Web site at https://
www.fhfa.gov.
After considering all comments
received, FHFA will publish a notice of
the final regulatory review plan in the
Federal Register and post it on the
FHFA Web site, https://www.fhfa.gov.
The interim regulatory review plan
follows.
erowe on DSK2VPTVN1PROD with PROPOSALS-1
Plan for Review of Existing Regulations
Under Executive Order 13579
a. Scope and timing of regulatory
reviews. At least every five years, FHFA
will conduct a review of the regulations
it has issued and that are in effect. The
first regulatory review will begin no
later than August 2013.
b. Factors considered in the regulatory
reviews. The regulatory reviews will
take into consideration the following
factors, as applicable:
(1) Legal or regulatory developments,
including new laws, executive orders or
judicial decisions that have been
adopted since the promulgation of a
regulation that make such regulation
inefficient, obsolete, contrary to
controlling legal precedent, or unduly
burdensome;
(2) Application by Fannie Mae,
Freddie Mac, or a Federal Home Loan
Bank (regulated entity) or the Office of
Finance of the Federal Home Loan Bank
System for revision of a regulation
because of reasonably discernible
regulatory burden or inefficiency;
(3) Marketplace developments,
technological evolution and related
changes that may have rendered an
existing regulation, in whole or in part,
inefficient, outmoded, or outdated;
(4) Such other occurrences or
developments as determined by FHFA
to be relevant to a review for
inefficiency or unwarranted regulatory
burden;
VerDate Mar<15>2010
14:41 Sep 22, 2011
Jkt 223001
(5) Whether the provisions of the
regulation are written in plain language
or otherwise need clarification;
(6) Compelling evidence that a
consolidation of two or more
regulations, elimination of a duplicative
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regulatory requirements would facilitate
compliance by or supervision of a
regulated entity or the Office of Finance;
(7) A demonstration of a better
alternative method to effect a regulatory
purpose or requirement supported by
compelling evidence of significantly
less intrusive means or of a substantially
more efficient method of accomplishing
the same supervisory purpose; and
(8) Such other factors as determined
by FHFA to be relevant to determining
and evaluating the need for and
effectiveness of a particular regulation.
c. Regulatory review process.—(1) The
regulatory reviews will be conducted by
the FHFA Office of General Counsel,
under the direction of the General
Counsel, and will include internal
consultation with other FHFA offices
and staff, guidance provided by the
FHFA Director, as well as consideration
of public comments.
(2) A review and report of findings
and recommendations will be provided
to the FHFA Director on a timely basis.
The report of findings and
recommendations will be privileged and
confidential.
(3) After receiving the report of
findings and recommendations, the
FHFA Director will determine what
steps may be necessary to relieve any
unnecessary burden, including
amendment to or repeal of existing
regulations or issuance of less formal
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d. No right of action. The regulatory
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rulemaking proceedings under the
Administrative Procedure Act and
create no right of action against FHFA.
Moreover, the determination of FHFA to
conduct or not to conduct a review of
a regulation and any determination,
finding, or recommendation resulting
from any review are not final agency
actions and, as such, are not subject to
judicial review.
Dated: September 16, 2011.
Edward J. DeMarco,
Acting Director, Federal Housing Finance
Agency.
[FR Doc. 2011–24405 Filed 9–22–11; 8:45 am]
BILLING CODE 8070–01–P
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59067
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA–2011–0992; Directorate
Identifier 2011–NM–126–AD]
RIN 2120–AA64
Airworthiness Directives; Bombardier,
Inc. Model CL–600–2B16 (CL–601–3A,
CL–601–3R, and CL–604 Variants)
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:
Three (3) events have occurred where the
Air-Driven Generator (ADG) failed to provide
power on CL–600–2B19 (CRJ) aeroplanes
during their regularly scheduled operational/
functional checks. An investigation revealed
that in all cases, the silver-plated copper
wires within the ADG power feeder cables
were damaged due to galvanic corrosion. It
was subsequently determined that the silverplating is inadequate for this application.
In the event of damage to the power feeder
cable wires, the ADG may not be able to
provide emergency electrical power to the
aeroplane.
Although there have been no reported
failures to date on any CL–600–2B16 (604
Variant) aeroplanes, a sampling program
carried out on these aeroplanes showed signs
of microscopic galvanic corrosion on the
ADG power feeder cable wires.
*
*
*
*
*
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 November 7, 2011.
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,
E:\FR\FM\23SEP1.SGM
23SEP1
59068
Federal Register / Vol. 76, No. 185 / Friday, September 23, 2011 / Proposed Rules
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 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.
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:
Discussion
The Transport Canada Civil Aviation
(TCCA), which is the aviation authority
for Canada, has issued Canadian
Airworthiness Directive CF–2011–08,
dated April 28, 2011 (referred to after
this as ‘‘the MCAI’’), to correct an unsafe
condition for the specified products.
The MCAI states:
Three (3) events have occurred where the
Air-Driven Generator (ADG) failed to provide
power on CL–600–2B19 (CRJ) aeroplanes
during their regularly scheduled operational/
functional checks. An investigation revealed
that in all cases, the silver-plated copper
wires within the ADG power feeder cables
were damaged due to galvanic corrosion. It
was subsequently determined that the silverplating is inadequate for this application.
In the event of damage to the power feeder
cable wires, the ADG may not be able to
provide emergency electrical power to the
aeroplane.
Although there have been no reported
failures to date on any CL–600–2B16 (604
Variant) aeroplanes, a sampling program
carried out on these aeroplanes showed signs
of microscopic galvanic corrosion on the
ADG power feeder cable wires.
This directive is issued to correct this
potentially unsafe condition by mandating
the replacement of all ADG power feeder
cables * * * with an ADG power feeder
cable that contains tin-plated copper wires.
You may obtain further information
by examining the MCAI in the AD
docket.
Assata Dessaline, Aerospace Engineer,
Avionics and Flight Test Branch, ANE–
172, FAA, New York Aircraft
Certification Office, 1600 Stewart
Avenue, Suite 410, Westbury, New York
11590; telephone (516) 228–7301; fax
(516) 794–5531.
Relevant Service Information
SUPPLEMENTARY INFORMATION:
FAA’s Determination and Requirements
of This Proposed AD
erowe on DSK2VPTVN1PROD with PROPOSALS-1
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–2011–0992; Directorate Identifier
2011–NM–126–AD’’ at the beginning of
your comments. We specifically invite
comments on the overall regulatory,
economic, environmental, and energy
aspects of this proposed AD. We will
consider all comments received by the
closing date and may amend this
proposed AD based on those comments.
We will post all comments we
receive, without change, to https://
www.regulations.gov, including any
personal information you provide. We
will also post a report summarizing each
substantive verbal contact we receive
about this proposed AD.
VerDate Mar<15>2010
14:41 Sep 22, 2011
Jkt 223001
Bombardier has issued Service
Bulletin 604–24–024, dated January 31,
2011. The actions described in this
service information are intended to
correct the unsafe condition identified
in the MCAI.
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
PO 00000
Frm 00003
Fmt 4702
Sfmt 4702
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 72 products of U.S. registry.
We also estimate that it would take
about 24 work-hours per product to
comply with the basic requirements of
this proposed AD. The average labor
rate is $85 per work-hour. Required
parts would cost about $1,897 per
product. Where the service information
lists required parts costs that are
covered under warranty, we have
assumed that there will be no charge for
these parts. As we do not control
warranty coverage for affected parties,
some parties may incur costs higher
than estimated here. Based on these
figures, we estimate the cost of the
proposed AD on U.S. operators to be
$283,464, or $3,937 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
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Federal Register / Vol. 76, No. 185 / Friday, September 23, 2011 / Proposed Rules
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:
[Amended]
2. The FAA amends § 39.13 by adding
the following new AD:
Bombardier, Inc.: Docket No. FAA–2011–
0992; Directorate Identifier 2011–NM–
126–AD.
Comments Due Date
(a) We must receive comments by
November 7, 2011.
erowe on DSK2VPTVN1PROD with PROPOSALS-1
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc.
Model CL–600–2B16 (CL–601–3A, CL–601–
3R, & CL–604 Variants) airplanes, certificated
in any category, serial numbers 5301, 5302,
5305 through 5318 inclusive, 5320 through
5328 inclusive, 5331 through 5349 inclusive,
5351 through 5367 inclusive, 5369 through
5408 inclusive, 5410, 5412 through 5426
inclusive, 5428 through 5438 inclusive, 5440
through 5489 inclusive, 5491 through 5498
inclusive, 5500 through 5517 inclusive, 5519
through 5522 inclusive, and 5524 through
5665 inclusive.
Subject
(d) Air Transport Association (ATA) of
America Code 24: Electrical power.
Reason
(e) The mandatory continuing
airworthiness information (MCAI) states:
VerDate Mar<15>2010
14:41 Sep 22, 2011
Jkt 223001
*
*
*
*
*
Actions
(g) Within 72 months after the effective
date of this AD, replace the ADG power
feeder cable, in accordance with the
Accomplishment Instructions of Bombardier
Service Bulletin 604–24–024, dated January
31, 2011.
Note 1: 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. 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.
Frm 00004
Issued in Renton, Washington on
September 16, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate,
Aircraft Certification Service.
[FR Doc. 2011–24432 Filed 9–22–11; 8:45 am]
BILLING CODE 4910–13–P
DEPARTMENT OF HOUSING AND
URBAN DEVELOPMENT
[Docket No. FR–5532–P–01]
(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.
PO 00000
Related Information
(i) Refer to MCAI Transport Canada Civil
Aviation (TCCA) Airworthiness Directive
CF–2011–08, dated April 28, 2011; and
Bombardier Service Bulletin 604–24–024,
dated January 31, 2011; for related
information.
24 CFR Part 985
Compliance
FAA AD Differences
Authority: 49 U.S.C. 106(g), 40113, 44701.
§ 39.13
Three (3) events have occurred where the
Air-Driven Generator (ADG) failed to provide
power on CL–600–2B19 (CRJ) aeroplanes
during their regularly scheduled operational/
functional checks. An investigation revealed
that in all cases, the silver-plated copper
wires within the ADG power feeder cables
were damaged due to galvanic corrosion. It
was subsequently determined that the silverplating is inadequate for this application.
In the event of damage to the power feeder
cable wires, the ADG may not be able to
provide emergency electrical power to the
aeroplane.
Although there have been no reported
failures to date on any CL–600–2B16 (604
Variant) aeroplanes, a sampling program
carried out on these aeroplanes showed signs
of microscopic galvanic corrosion on the
ADG power feeder cable wires.
59069
Fmt 4702
Sfmt 4702
RIN 2577–AC76
Revision to the Section 8 Management
Assessment Program Lease-Up
Indicator
AGENCY: Office of the Assistant
Secretary for Public and Indian
Housing, HUD.
ACTION: Proposed rule.
SUMMARY: This proposed rule would
amend HUD’s regulations for the
Section 8 Management Assessment
program (SEMAP) to revise the process
by which HUD measures and verifies
performance under the SEMAP lease-up
indicator. Specifically, HUD proposes to
amend the existing regulation to reflect
that assessment of a public housing
agency’s (PHA) leasing indicator will be
based on a calendar year cycle, rather
than a fiscal year cycle, which would
increase administrative efficiencies for
PHAs. This proposed rule would also
clarify that units assisted under the
voucher homeownership option or
occupied under a project-based housing
assistance (HAP) contract are included
in the assessment of PHA units leased.
DATES: Comment Due Date: October 24,
2011.
ADDRESSES: Interested persons are
invited to submit comments regarding
this proposed rule to the Regulations
Division, Office of General Counsel,
Department of Housing and Urban
Development, 451 7th Street, SW.,
Room 10276, Washington, DC 20410–
0500. Communications should refer to
the above docket number and title.
There are two methods for submitting
public comments. All submissions must
refer to the above docket number and
title.
1. Submission of Comments by Mail.
Comments may be submitted by mail to
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Agencies
[Federal Register Volume 76, Number 185 (Friday, September 23, 2011)]
[Proposed Rules]
[Pages 59067-59069]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-24432]
=======================================================================
-----------------------------------------------------------------------
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-0992; Directorate Identifier 2011-NM-126-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2B16 (CL-
601-3A, CL-601-3R, and CL-604 Variants) 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:
Three (3) events have occurred where the Air-Driven Generator
(ADG) failed to provide power on CL-600-2B19 (CRJ) aeroplanes during
their regularly scheduled operational/functional checks. An
investigation revealed that in all cases, the silver-plated copper
wires within the ADG power feeder cables were damaged due to
galvanic corrosion. It was subsequently determined that the silver-
plating is inadequate for this application.
In the event of damage to the power feeder cable wires, the ADG
may not be able to provide emergency electrical power to the
aeroplane.
Although there have been no reported failures to date on any CL-
600-2B16 (604 Variant) aeroplanes, a sampling program carried out on
these aeroplanes showed signs of microscopic galvanic corrosion on
the ADG power feeder cable wires.
* * * * *
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 November 7,
2011.
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,
[[Page 59068]]
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
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: Assata Dessaline, Aerospace Engineer,
Avionics and Flight Test Branch, ANE-172, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7301; 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-2011-0992;
Directorate Identifier 2011-NM-126-AD'' at the beginning of your
comments. We specifically invite comments on the overall regulatory,
economic, environmental, and energy aspects of this proposed AD. We
will consider all comments received by the closing date and may amend
this proposed AD based on those comments.
We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We
will also post a report summarizing each substantive verbal contact we
receive about this proposed AD.
Discussion
The Transport Canada Civil Aviation (TCCA), which is the aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2011-08, dated April 28, 2011 (referred to after this as ``the MCAI''),
to correct an unsafe condition for the specified products. The MCAI
states:
Three (3) events have occurred where the Air-Driven Generator
(ADG) failed to provide power on CL-600-2B19 (CRJ) aeroplanes during
their regularly scheduled operational/functional checks. An
investigation revealed that in all cases, the silver-plated copper
wires within the ADG power feeder cables were damaged due to
galvanic corrosion. It was subsequently determined that the silver-
plating is inadequate for this application.
In the event of damage to the power feeder cable wires, the ADG
may not be able to provide emergency electrical power to the
aeroplane.
Although there have been no reported failures to date on any CL-
600-2B16 (604 Variant) aeroplanes, a sampling program carried out on
these aeroplanes showed signs of microscopic galvanic corrosion on
the ADG power feeder cable wires.
This directive is issued to correct this potentially unsafe
condition by mandating the replacement of all ADG power feeder
cables * * * with an ADG power feeder cable that contains tin-plated
copper wires.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier has issued Service Bulletin 604-24-024, dated January
31, 2011. 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 72 products of U.S. registry. We also estimate that
it would take about 24 work-hours per product to comply with the basic
requirements of this proposed AD. The average labor rate is $85 per
work-hour. Required parts would cost about $1,897 per product. Where
the service information lists required parts costs that are covered
under warranty, we have assumed that there will be no charge for these
parts. As we do not control warranty coverage for affected parties,
some parties may incur costs higher than estimated here. Based on these
figures, we estimate the cost of the proposed AD on U.S. operators to
be $283,464, or $3,937 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
[[Page 59069]]
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-2011-0992; Directorate Identifier
2011-NM-126-AD.
Comments Due Date
(a) We must receive comments by November 7, 2011.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-
601-3A, CL-601-3R, & CL-604 Variants) airplanes, certificated in any
category, serial numbers 5301, 5302, 5305 through 5318 inclusive,
5320 through 5328 inclusive, 5331 through 5349 inclusive, 5351
through 5367 inclusive, 5369 through 5408 inclusive, 5410, 5412
through 5426 inclusive, 5428 through 5438 inclusive, 5440 through
5489 inclusive, 5491 through 5498 inclusive, 5500 through 5517
inclusive, 5519 through 5522 inclusive, and 5524 through 5665
inclusive.
Subject
(d) Air Transport Association (ATA) of America Code 24:
Electrical power.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
Three (3) events have occurred where the Air-Driven Generator
(ADG) failed to provide power on CL-600-2B19 (CRJ) aeroplanes during
their regularly scheduled operational/functional checks. An
investigation revealed that in all cases, the silver-plated copper
wires within the ADG power feeder cables were damaged due to
galvanic corrosion. It was subsequently determined that the silver-
plating is inadequate for this application.
In the event of damage to the power feeder cable wires, the ADG
may not be able to provide emergency electrical power to the
aeroplane.
Although there have been no reported failures to date on any CL-
600-2B16 (604 Variant) aeroplanes, a sampling program carried out on
these aeroplanes showed signs of microscopic galvanic corrosion on
the ADG power feeder cable wires.
* * * * *
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) Within 72 months after the effective date of this AD,
replace the ADG power feeder cable, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 604-24-
024, dated January 31, 2011.
FAA AD Differences
Note 1: 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. 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-2011-08, dated April 28, 2011; and
Bombardier Service Bulletin 604-24-024, dated January 31, 2011; for
related information.
Issued in Renton, Washington on September 16, 2011.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-24432 Filed 9-22-11; 8:45 am]
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