[Federal Register Volume 75, Number 216 (Tuesday, November 9, 2010)]
[Rules and Regulations]
[Pages 68695-68698]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2010-28162]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-1106; Directorate Identifier 2010-NM-237-AD;
Amendment 39-16508; AD 2010-23-19]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10
(Regional Jet Series 700, 701, & 702), Model CL-600-2D15 (Regional Jet
Series 705), and Model CL-600-2D24 (Regional Jet Series 900) Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule; request for comments.
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SUMMARY: We are adopting a new airworthiness directive (AD) for the
products listed above. This AD results from mandatory continuing
airworthiness information (MCAI) originated by an aviation authority of
another country to identify and correct an unsafe condition on an
aviation product. The MCAI describes the unsafe condition as:
Two cases of main landing gear (MLG) failure to fully extend
have been reported. An MLG failing to extend may result in an unsafe
asymmetric landing configuration.
Preliminary investigation has shown that interference between
the MLG door and the MLG fairing seal prevented the MLG door from
opening.
* * * * *
The unsafe condition is possible loss of controllability of the
airplane during landing. This AD requires actions that are intended to
address the unsafe condition described in the MCAI.
DATES: This AD becomes effective November 24, 2010.
The Director of the Federal Register approved the incorporation by
reference of a certain publication listed in the AD as of November 24,
2010.
We must receive comments on this AD by December 27, 2010.
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 W12-140, 1200 New
Jersey Avenue, SE., Washington, DC, between 9 a.m. and 5 p.m., Monday
through Friday, except Federal holidays.
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 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: Fabio Buttitta, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office (ACO), 1600 Stewart Avenue, Suite 410, Westbury,
New York 11590; telephone (516) 228-7303; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
Transport Canada Civil Aviation, which is the aviation authority
for Canada, has issued Canadian Airworthiness Directive CF-2010-36,
dated October 18, 2010 (referred to after this as ``the MCAI''), to
correct an unsafe condition for the specified products. The MCAI
states:
Two cases of main landing gear (MLG) failure to fully extend
have been reported. An MLG failing to extend may result in an unsafe
asymmetric landing configuration.
Preliminary investigation has shown that interference between
the MLG door and the MLG fairing seal prevented the MLG door from
opening.
This [Canadian airworthiness] directive mandates [repetitive
detailed] inspection[s for damage] and rectification, as required,
of the MLG fairing and seal, MLG door, and adjacent structures.
The unsafe condition is possible loss of controllability of the
airplane during landing. Damage includes the following:
Wear lines, cracks, fraying, tears, and evidence of
chafing of the rubber seal of the MLG fairing;
Missing and broken rollers, loose and missing fasteners,
and damaged and missing stops of the MLG inboard doors;
[[Page 68696]]
and damage along the edge of the MLG inboard door adjacent to the MLG
fairing;
Missing forward and aft stops, loose and missing fasteners
of the MLG fairing; and damage along the edge of the MLG fairing
adjacent to the MLG door; and
Missing stops, loose and missing fasteners, and missing
wedges of the stops and wedge on the forward and aft spars.
Rectification (i.e., corrective actions) includes replacing the rubber
seal or removing the MLG inboard door, and contacting Bombardier for
repair instructions and doing the repair. You may obtain further
information by examining the MCAI in the AD docket.
Relevant Service Information
Bombardier has issued Alert Service Bulletin A670BA-32-030,
Revision A, including Appendix A, dated October 22, 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 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 issuing this AD because we
evaluated all pertinent information and determined the unsafe condition
exists and is likely to exist or develop on other products of the same
type design.
Differences Between the 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 required 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 AD.
FAA's Determination of the Effective Date
An unsafe condition exists that requires the immediate adoption of
this AD. The FAA has found that the risk to the flying public justifies
waiving notice and comment prior to adoption of this rule because the
main landing gear may fail to extend, which could result in an
asymmetric landing configuration. Therefore, we determined that notice
and opportunity for public comment before issuing this AD are
impracticable and that good cause exists for making this amendment
effective in fewer than 30 days.
Comments Invited
This AD is a final rule that involves requirements affecting flight
safety, and we did not precede it by notice and opportunity for public
comment. We invite you to send any written relevant data, views, or
arguments about this AD. Send your comments to an address listed under
the ADDRESSES section. Include ``Docket No. FAA-2010-1106; Directorate
Identifier 2010-NM-237-AD'' at the beginning of your comments. We
specifically invite comments on the overall regulatory, economic,
environmental, and energy aspects of this AD. We will consider all
comments received by the closing date and may amend this AD because of
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 AD.
Authority for This Rulemaking
Title 49 of the United States Code specifies the FAA's authority to
issue rules on aviation safety. Subtitle I, section 106, describes the
authority of the FAA Administrator. ``Subtitle VII: Aviation
Programs,'' describes in more detail the scope of the Agency's
authority.
We are issuing this rulemaking under the authority described in
``Subtitle VII, Part A, Subpart III, Section 44701: General
requirements.'' Under that section, Congress charges the FAA with
promoting safe flight of civil aircraft in air commerce by prescribing
regulations for practices, methods, and procedures the Administrator
finds necessary for safety in air commerce. This regulation is within
the scope of that authority because it addresses an unsafe condition
that is likely to exist or develop on products identified in this
rulemaking action.
Regulatory Findings
We determined that this AD will not have federalism implications
under Executive Order 13132. This AD will not have a substantial direct
effect on the States, on the relationship between the national
government and the States, or on the distribution of power and
responsibilities among the various levels of government.
For the reasons discussed above, I certify this AD:
1. Is not a ``significant regulatory action'' under Executive Order
12866;
2. Is not a ``significant rule'' under the DOT Regulatory Policies
and Procedures (44 FR 11034, February 26, 1979); and
3. Will not have a significant economic impact, positive or
negative, on a substantial number of small entities under the criteria
of the Regulatory Flexibility Act.
We prepared a regulatory evaluation of the estimated costs to
comply with this AD and placed it in the AD docket.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
0
Accordingly, under the authority delegated to me by the Administrator,
the FAA amends 14 CFR part 39 as follows:
PART 39--AIRWORTHINESS DIRECTIVES
0
1. The authority citation for part 39 continues to read as follows:
Authority: 49 U.S.C. 106(g), 40113, 44701.
Sec. 39.13 [Amended]
0
2. The FAA amends Sec. 39.13 by adding the following new AD:
2010-23-19 Bombardier, Inc.: Amendment 39-16508. Docket No. FAA-
2010-1106; Directorate Identifier 2010-NM-237-AD.
Effective Date
(a) This airworthiness directive (AD) becomes effective November
24, 2010.
Affected ADs
(b) None.
Applicability
(c) This AD applies to the Bombardier, Inc. airplanes identified
in paragraphs (c)(1) and (c)(2) of this AD, certificated in any
category.
(1) Model CL-600-2C10 (Regional Jet Series 700, 701, & 702)
airplanes, having serial numbers (S/Ns) 10003 and subsequent.
(2) Model CL-600-2D15 (Regional Jet Series 705) and CL-600-2D24
(Regional Jet Series 900) airplanes, having S/Ns 15001 and
subsequent.
Subject
(d) Air Transport Association (ATA) of America Code 32: Landing
gear.
Reason
(e) The mandatory continued airworthiness information (MCAI)
states:
[[Page 68697]]
Two cases of main landing gear (MLG) failure to fully extend
have been reported. An MLG failing to extend may result in an unsafe
asymmetric landing configuration.
Preliminary investigation has shown that interference between
the MLG door and the MLG fairing seal prevented the MLG door from
opening.
* * * * *
The unsafe condition is possible loss of controllability of the
airplane during landing.
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.
Repetitive Inspections and Corrective Actions
(g) For airplanes having S/Ns 10003 to 10313 inclusive, 15001 to
15238 inclusive, and 15240 to 15255 inclusive: Within 50 flight
cycles after the effective date of this AD, do the inspections
specified in paragraphs (g)(1), (g)(2), (g)(3), and (g)(4) of this
AD, in accordance with ``PART A--Inspection of the MLG Inboard
Doors, MLG Fairing and Adjacent Structure'' of the Accomplishment
Instructions of Bombardier Alert Service Bulletin A670BA-32-030,
Revision A, dated October 22, 2010. Repeat the inspections
thereafter at intervals not to exceed 600 flight hours.
(1) Do a detailed inspection for damage (including wear lines,
cracks, fraying, tears, and evidence of chafing) of the rubber seal
of the MLG fairing.
(2) Do a detailed inspection for damage (including missing and
broken rollers, loose and missing fasteners, damaged and missing
stops) of the MLG inboard doors, and damage along the edge of the
MLG inboard door adjacent to the MLG fairing.
(3) Do a detailed inspection of the MLG fairing for damage
(including missing forward and aft stops, loose and missing
fasteners), and damage along the edge of the MLG fairing adjacent to
the MLG door.
(4) Do a detailed inspection for damage (including missing
stops, loose and missing fasteners, and missing wedges) of the stops
and wedge on the forward and aft spars.
(h) For airplanes not identified in paragraph (g) of this AD:
Within 600 flight hours after the effective date of this AD, do the
inspections specified in paragraphs (h)(1), (h)(2), (h)(3), and
(h)(4) of this AD, in accordance with ``PART A--Inspection of the
MLG Inboard Doors, MLG Fairing and Adjacent Structure'' of the
Accomplishment Instructions of Bombardier Alert Service Bulletin
A670BA-32-030, Revision A, dated October 22, 2010. Repeat the
inspections thereafter at intervals not to exceed 600 flight hours.
(1) Do a detailed inspection for damage (including wear lines,
cracks, fraying, tears, and evidence of chafing) of the rubber seal
of the MLG fairing.
(2) Do a detailed inspection for damage (including missing and
broken rollers, loose and missing fasteners, damaged and missing
stops) of the MLG inboard doors, and damage along the edge of the
MLG inboard door adjacent to the MLG fairing.
(3) Do a detailed inspection of the MLG fairing for damage
(including missing forward and aft stops, loose and missing
fasteners), and damage along the edge of the MLG fairing adjacent to
the MLG door.
(4) Do a detailed inspection for damage (including missing
stops, loose and missing fasteners, and missing wedges) of the stops
and wedge on the forward and aft spars.
(i) If damage to only the rubber seal on the MLG fairing is
found during any inspection required by paragraph (g) or (h) of this
AD: Before further flight, do either action in paragraph (i)(1) or
(i)(2) of this AD.
(1) Replace the rubber seal on the MLG fairing with a new rubber
seal, in accordance with ``PART B--Replacement of the Forward Rubber
Seal on the MLG Fairing'' of the Accomplishment Instructions of
Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated
October 22, 2010.
(2) Remove the MLG inboard door, in accordance with ``PART C--
Removal of MLG Inboard Door'' of the Accomplishment Instructions of
Bombardier Alert Service Bulletin A670BA-32-030, Revision A, dated
October 22, 2010. For airplanes on which the MLG inboard door is re-
installed, do the installation of the MLG inboard door in accordance
with ``PART D--Installation of MLG Inboard Door'' of the
Accomplishment Instructions of Bombardier Alert Service Bulletin
A670BA-32-030, Revision A, dated October 22, 2010.
(j) If damage other than the damage identified in paragraph (i)
of this AD is found during any inspection required by paragraph (g)
or (h) of this AD: Before further flight, contact the Bombardier
Regional Aircraft Customer Response Center for repair instructions
and do the repair.
(k) Submit a report of the positive findings of the initial
inspection required by paragraph (g) or (h), as applicable, of this
AD to Bombardier, at the applicable time specified in paragraph
(k)(1) or (k)(2) of this AD. The report must include the information
specified in Appendix A of Bombardier Alert Service Bulletin A670BA-
32-030, Revision A, dated October 22, 2010.
(1) If the inspection was done on or after the effective date of
this AD: Submit the report within 30 days after the inspection.
(2) If the inspection was done before the effective date of this
AD: Submit the report within 30 days after the effective date of
this AD.
Credit for Actions Accomplished in Accordance With Previous Service
Information
(l) Actions accomplished before the effective date of this AD
according to Bombardier Alert Service Bulletin A670BA-32-030, dated
October 18, 2010, are considered acceptable for compliance with the
corresponding action specified in this AD.
FAA AD Differences
Note 1: This AD differs from the MCAI and/or service
information as follows: No differences.
Other FAA AD Provisions
(m) The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, New
York 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
(n) Refer to MCAI Canadian Airworthiness Directive CF-2010-36,
dated October 18, 2010; and Bombardier Alert Service Bulletin
A670BA-32-030, Revision A, dated October 22, 2010; for related
information.
Material Incorporated by Reference
(o) You must use Bombardier Alert Service Bulletin A670BA-32-
030, Revision A, including Appendix A, dated October 22, 2010, to do
the actions required by this AD, unless the AD specifies otherwise.
(1) The Director of the Federal Register approved the
incorporation by reference of this service information under 5
U.S.C. 552(a) and 1 CFR part 51.
(2) For service information identified in this AD, contact
Bombardier, Inc., 400 C[ocirc]te-Vertu Road West, Dorval,
Qu[eacute]bec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-
7401; e-mail [email protected]; Internet http://www.bombardier.com.
(3) You may review copies of the service information at the FAA,
Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton,
Washington. For information on the availability of this material at
the FAA, call 425-227-1221.
(4) You may also review copies of the service information that
is incorporated by reference at the National Archives and Records
Administration (NARA). For information on the availability of this
material at NARA, call 202-741-6030, or go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
[[Page 68698]]
Issued in Renton, Washington, on November 1, 2010.
Jeffrey E. Duven,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2010-28162 Filed 11-8-10; 8:45 am]
BILLING CODE 4910-13-P