[Federal Register Volume 77, Number 147 (Tuesday, July 31, 2012)]
[Proposed Rules]
[Pages 45288-45290]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-18585]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0725; Directorate Identifier 2011-NM-207-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc.
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
certain Bombardier, Inc. Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-
601), CL-600-2B16 (CL-601-3A, CL-601-3R, & CL-604 Variants) airplanes.
This proposed AD was prompted by reports of cracking found on the upper
and lower web of the engine support beam. This proposed AD would
require revising the maintenance program. We are proposing this AD to
detect and correct fatigue cracking of the engine support beam, which
could result in failure of the engine support beam and affect the
structural integrity of the airplane.
DATES: We must receive comments on this proposed AD by September 14,
2012.
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.
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; email
thd.crj@aero.bombardier.com; 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 (telephone (800) 647-5527) is
in the ADDRESSES section. Comments will be available in the AD docket
shortly after receipt.
FOR FURTHER INFORMATION CONTACT: Stephen Kowalski, Aerospace Engineer,
Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New
York 11590; telephone (516) 228-7327; 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-2012-0725;
Directorate Identifier 2011-NM-207-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 aviation
authority for Canada, has issued Canadian Airworthiness Directive CF-
2011-33, dated August 16, 2011 (referred to after this as ``the
MCAI''), to correct an unsafe condition for the specified products. The
MCAI states:
Cracks on the upper and lower web of the Engine Support Beam
(ESB) have been discovered on two (2) Challenger aeroplanes in
service. Failure of the ESB could adversely affect the structural
integrity of the aeroplane.
A Temporary Revision (TR) has been made to the Time Limits/
Maintenance Checks (TLMC) manual to introduce a new Airworthiness
Limitations (AWL) task to ensure that fatigue cracking of the ESB is
detected and corrected.
This [TCCA] directive mandates the incorporation of the new AWL
task.
You may obtain further information by examining the MCAI in the AD
docket.
Relevant Service Information
Bombardier, Inc. has issued the following temporary revisions. The
actions described in this service information are intended to correct
the unsafe condition identified in the MCAI.
Task 53-10-00-198, Torque Box specified in Canadair
Challenger Temporary Revision (TR) 5-151, dated May 31, 2011, to the
Canadair Challenger Time Limits/Maintenance Checks Manual, PSP 605 (for
Model CL-600-1A11 (CL-600) airplanes).
Task 53-10-00-198, Engine Support Beam specified in
Canadair Challenger TR 5-250, dated May 31, 2011, to the Canadair
Challenger Time Limits/Maintenance Checks Manual, PSP 601-5 (for Model
CL-600-2A12 (CL-601) airplanes).
Task 53-10-00-198, Engine Support Beam specified in
Canadair Challenger TR 5-261, dated May 31, 2011, to the Canadair
Challenger Time Limits/Maintenance Checks Manual, PSP 601A-5 (for Model
CL-600-2B16 (CL-601-3A and CL-601-3R Variants) airplanes).
Task 53-30-00-155, Detailed Inspection of the Engine
Support Beam specified in Bombardier Challenger 604 TR 5-2-47, dated
May 31, 2011, to the Bombardier Challenger 604 Time Limits/Maintenance
Checks Manual (for Model CL-600-2B16 (CL-604 Variants) airplanes).
Task 53-30-00-155, Detailed Inspection of the Engine
Support Beam
[[Page 45289]]
specified in Bombardier Challenger 605 TR 5-2-9, dated May 31, 2011, to
the Bombardier Challenger 605 Time Limits/Maintenance Checks Manual
(for Model CL-600-2B16 (CL-604 Variants) airplanes).
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.
Costs of Compliance
Based on the service information, we estimate that this proposed AD
would affect about 111 products of U.S. registry. We also estimate that
it would take about 1 work-hour 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 $9,435, or $85 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);
3. Will not affect intrastate aviation in Alaska; and
4. 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-2012-0725; Directorate Identifier
2011-NM-207-AD.
(a) Comments Due Date
We must receive comments by September 14, 2012.
(b) Affected ADs
None.
(c) Applicability
(1) This AD applies to the airplane models specified in
paragraphs (c)(1)(i), (c)(1)(ii), (c)(1)(iii), and (c)(1)(iv) of
this AD, certificated in any category.
(i) Bombardier, Inc. Model CL-600-1A11 (CL-600), serial numbers
1004 through 1085 inclusive.
(ii) Bombardier, Inc. Model CL-600-2A12 (CL-601), serial numbers
3001 through 3066 inclusive.
(iii) Bombardier, Inc. Model CL-600-2B16 (CL-601-3A and CL-601-
3R Variants), serial numbers 5001 through 5194 inclusive.
(iv) Bombardier, Inc. Model CL-600-2B16 (CL-604 Variants),
serial numbers 5301 through 5665 inclusive, and 5701 and subsequent.
(2) 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 (j) of this AD. The request should include a
description of changes to the required inspections that will ensure
the continued damage tolerance of the affected structure. The FAA
has provided guidance for this determination in FAA Advisory
Circular (AC) 25.1529-1A, dated November 20, 2007 (http://rgl/
Regulatory--and--Guidance--Library/rgAdvisoryCircular.nsf/0/
E4111B5537E0B345862573B0006FA23B?OpenDocument).
(d) Subject
Air Transport Association (ATA) of America Code 05, Periodic
Inspections.
(e) Reason
This AD was prompted by reports of cracking found on the upper
and lower web of the engine support beam. We are issuing this AD to
detect and correct fatigue cracking of the engine support beam,
which could result in failure of the engine support beam and affect
the structural integrity of the airplane.
(f) Compliance
You are responsible for having the actions required by this AD
performed within the compliance times specified, unless the actions
have already been done.
(g) Time Limits/Maintenance Checks (TLMC) Manual Revision
Within 60 days after the effective date of this AD, revise the
maintenance program to incorporate the applicable information
specified in paragraphs (g)(1) through (g)(4) of this AD.
(1) For Model CL-600-1A11 (CL-600) airplanes: Task 53-10-00-198,
Torque Box, specified in Canadair Challenger TR 5-151, dated May 31,
2011, to the TLMC Manual, PSP 605.
(2) For Model CL-600-2A12 (CL-601 Variant) airplanes: Task 53-
10-00-198, Engine Support Beam, specified in Canadair Challenger TR
5-250, dated May 31, 2011, to the TLMC Manual, PSP 601-5.
(3) For Model CL-600-2B16 (CL-601-3A and CL-601-3B Variant)
airplanes: Task 53-10-00-198, Engine Support Beam, specified in
Canadair Challenger TR 5-261, dated May 31, 2011, to the TLMC
Manual, PSP 601A-5.
(4) For Model CL-600-2B16 (CL-604 Variant) airplanes: Task 53-
30-00-155, Detailed Inspection of the Engine Support Beam, specified
in Bombardier Challenger 604 TR 5-2-47, dated May 31, 2011, to the
Bombardier Challenger 604 TLMC Manual; or Task 53-30-00-155,
Detailed Inspection of the Engine Support Beam, specified in
Bombardier Challenger 605 TR 5-2-9, dated
[[Page 45290]]
May 31, 2011, to the Bombardier Challenger 605 TLMC Manual.
Note 1 to paragraph (g) of this AD: The maintenance program
revision required by paragraph (g) of this AD may be done by
inserting a copy of Bombardier Temporary Revision (TR) 5-151, TR 5-
250, TR 5-261, and TR 5-2-47 or TR 5-2-9, all dated May 31, 2011,
into the applicable TLMC manual. When the TR has been included in
general revisions of the TLMC manual, the general revisions may be
inserted in the TLMC manual, provided the relevant information in
the general revision is identical to that in the applicable TR
specified in paragraphs (g)(1) through (g)(4) of this AD.
(h) Initial Compliance Times for Inspections
The initial compliance time for the inspections specified in the
temporary revisions specified in paragraphs (g)(1) through (g)(4) of
this AD, is before the accumulation of 7,800 total flight cycles, or
within 12 months after the effective date of this AD, whichever
occurs later.
(i) No Alternative Actions or Intervals
After accomplishing the revision required by paragraph (g) of
this AD, no alternative actions (e.g., inspections) or intervals may
be used unless the actions or intervals are approved as an
alternative method of compliance (AMOC) in accordance with the
procedures specified in paragraph (j) of this AD.
(j) Other FAA AD Provisions
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 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.
(k) Related Information
(1) Refer to MCAI Canadian Airworthiness Directive CF-2011-33,
dated August 16, 2011, and the temporary revisions specified in
paragraphs (g)(1) through (g)(4) of this AD, for related
information.
(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; email thd.crj@aero.bombardier.com; 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, WA. For information on the availability of this
material at the FAA, call 425-227-1221.
Issued in Renton, Washington, on July 20, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-18585 Filed 7-30-12; 8:45 am]
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