[Federal Register Volume 76, Number 207 (Wednesday, October 26, 2011)]
[Proposed Rules]
[Pages 66203-66205]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2011-27653]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2011-1095; Directorate Identifier 2010-NM-241-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).
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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:
During pre-delivery inspections and test flights, several short
circuit events were reported, one of which resulted in smoke in the
cockpit. There were no in-service incidents.
Investigations have identified three conditions affecting the wiring
of Circuit Breaker Panels * * * and Junction Boxes * * *, which
would lead to short circuiting:
* * * * *
If not corrected, these conditions could result in arcing, damage to
adjacent structure, smoke in the cockpit, or loss of system
redundancies.
* * * * *
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 December 12,
2011.
ADDRESSES: You may send comments by any of the following methods:
Federal eRulemaking Portal: Go to http://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; phone: 514-855-5000; fax: 514-855-7401; e-mail:
[email protected]; Internet: http://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 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 this proposed AD, the regulatory
evaluation, any comments received, and other information. The street
address for the Docket Operations office (phone: 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, New York Aircraft
Certification Office (ACO), FAA, 1600 Stewart Ave. Suite 410, Westbury,
NY 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-2011-1095;
Directorate Identifier 2010-NM-241-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 http://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 airworthiness
authority for Canada, has issued Canadian Airworthiness Directive CF-
2010-25, dated August 3, 2010 (referred to after this as ``the MCAI''),
to correct
[[Page 66204]]
an unsafe condition for the specified products. The MCAI states:
During pre-delivery inspections and test flights, several short
circuit events were reported, one of which resulted in smoke in the
cockpit. There were no in-service incidents.
Investigations have identified three conditions affecting the
wiring of Circuit Breaker Panels 1, 2, 3 and 4 (CBP-1, CBP-2, CBP-3,
and CBP-4) and Junction Boxes 17 and 18 (JB17 and JB18), which would
lead to short circuiting:
1. In CBP-1, there may be low clearance between specific bus
bars and the circuit breaker panel structure.
2. Some nickel-plated terminal lugs, size number 22-20 with a
green insulating sleeve, may not have been manufactured to
applicable standards. These terminal lugs may have been installed in
CBP-1, CBP-2, CBP-3, CBP-4, JB17 and JB18. This manufacturing defect
affects the mechanical hold of the wire in the crimped lug barrel.
3. In JB17, JB18 and the above-mentioned CBPs, foreign object
debris (FOD) may be found.
If not corrected, these conditions could result in arcing,
damage to adjacent structure, smoke in the cockpit, or loss of
system redundancies.
This TCCA directive is issued to mandate the replacement or
relocation of the specific CBP-1 bus bars, the [detailed]
inspection, and rework if necessary, of any loose or improperly
crimped lugs in CBP-1, CBP-2, CBP-3, CBP-4, JB17 and JB18, and to
ensure there is no FOD in the affected areas [via a general visual
inspection for FOD, and removal if necessary].
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier has issued Service Bulletin 605-24-002, dated December
07, 2009, and Service Bulletin 605-24-004, dated January 18, 2010. 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 69 products of U.S. registry. We also estimate that
it would take about 6 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 $347 per product. Where the
service information lists required parts costs that are covered under
warranty, we have assumed that there will be no charge for these costs.
As we do not control warranty coverage for affected parties, some
parties may incur costs higher than estimated here. Based on these
figures, we estimate the cost of the proposed AD on U.S. operators to
be $59,133, or $857 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-2011-1095; Directorate Identifier
2010-NM-241-AD.
Comments Due Date
(a) We must receive comments by December 12, 2011.
Affected ADs
(b) None.
Applicability
(c) This AD applies to Bombardier, Inc. Model CL-600-2B16 (CL-
601-3A, CL-601-3R, and CL-604 Variants) airplanes, certificated in
any category, serial numbers 5701 through 5752 inclusive, 5754
through 5775 inclusive, 5777, 5779 through 5781 inclusive, 5783
through 5790 inclusive, 5792, 5794 through 5796 inclusive, 5798,
5801, and 5804.
[[Page 66205]]
Subject
(d) Air Transport Association (ATA) of America Code 24:
Electrical Power.
Reason
(e) The mandatory continuing airworthiness information (MCAI)
states:
During pre-delivery inspections and test flights, several short
circuit events were reported, one of which resulted in smoke in the
cockpit. There were no in-service incidents.
Investigations have identified three conditions affecting the wiring
of Circuit Breaker Panels * * * and Junction Boxes * * *, which
would lead to short circuiting:
If not corrected, these conditions could result in arcing, damage to
adjacent structure, smoke in the cockpit, or loss of system
redundancies.
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.
Inspections, Bus Bar Actions, and Corrective Actions
(g) For airplanes having serial numbers 5701 through 5752, 5754
through 5775, 5777, 5780 through 5781, 5783 through 5790, 5792, 5794
through 5796, 5798, 5801, and 5804: Within 800 flight hours after
the effective date of this AD, do the actions in paragraph (g)(1),
(g)(2), and (g)(3) of this AD, in accordance with the Accomplishment
Instructions of the Bombardier Service Bulletin 605-24-004, dated
January 18, 2010.
(1) Do a detailed inspection in CBP-1 for loose lugs and for
crimped lugs that have any of the conditions specified in step
2.B.(9)(d) of Bombardier Service Bulletin 605-24-004, dated January
18, 2010. Before further flight, replace all loose lugs and all
crimped lugs in CBP-1 that have any of the conditions specified in
step 2.B.(9)(d) of Bombardier Service Bulletin 605-24-004, dated
January 18, 2010.
(2) Relocate or replace the CBP-1 bus bars as applicable.
(3) Do a general visual inspection for foreign object damage
(FOD). If any FOD is found: Before further flight, remove the FOD.
(h) For airplanes having serial numbers 5701 through 5752, 5754
through 5756, 5758 through 5775, 5779, 5781, 5788, 5789, 5792, 5795,
5798, 5801, and 5804: Within 800 flight hours after the effective
date of this AD, do the actions in paragraph (h)(1) and (h)(2) of
this AD, in accordance with the Accomplishment Instructions of the
Bombardier Service Bulletin 605-24-002, dated December 7, 2009.
(1) Do a detailed inspection for loose lugs and for crimped lugs
that have any of the conditions specified in step 2.B.(2)(d) of
Bombardier Service Bulletin 605-24-002, dated December 7, 2009, in
CBP-2, CBP-3, CBP-4, JB17, and JB18. Before further flight, replace
all loose lugs and all crimped lugs that have any of the conditions
specified in step 2.B.(2)(d) of Bombardier Service Bulletin 605-24-
002, dated December 7, 2009, in CBP-2, CBP-3, CBP-4, JB17, and JB18.
(2) Do a general visual inspection for FOD. If any FOD is found:
Before further flight, remove the FOD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service
information as follows: The Accomplishment Instructions of
Bombardier Service Bulletin 605-24-002, dated December 7, 2009, does
not specify corrective action for the general visual inspection for
FOD. This AD requires removing any FOD discovered during the general
visual inspection.
Other FAA AD Provisions
(i) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York Aircraft Certification Office, 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 manager of 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
(j) Refer to MCAI Canadian Airworthiness Directive CF-2010-25,
dated August 3, 2010; and Bombardier Service Bulletin 605-24-002,
dated December 07, 2009; and Bombardier Service Bulletin 605-24-004,
dated January 18, 2010; for related information.
Issued in Renton, Washington, on October 17, 2011.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2011-27653 Filed 10-25-11; 8:45 am]
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