[Federal Register Volume 77, Number 182 (Wednesday, September 19, 2012)]
[Rules and Regulations]
[Pages 57998-58001]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2012-22042]
[[Page 57998]]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2012-0142; Directorate Identifier 2010-NM-275-AD;
Amendment 39-17188; AD 2012-18-11]
RIN 2120-AA64
Airworthiness Directives; Bombardier, Inc. Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, &
702), CL-600-2D15 (Regional Jet Series 705), and CL-600-2D24 (Regional
Jet Series 900) airplanes. This AD was prompted by reports of failures
of a hydraulic accumulator's screw-cap/end cap while on the ground that
resulted in loss of use of that hydraulic system, and in high-energy
impact damage to adjacent systems and structures. This AD requires an
inspection for part numbers; repetitive inspections for any cracking of
certain hydraulic system accumulators, and replacement, if necessary;
and revising the maintenance program to include a life limit for
certain hydraulic system accumulators. We are issuing this AD to
prevent loss of use of a hydraulic system, which could result in
reduced controllability of the airplane.
DATES: This AD becomes effective October 24, 2012.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in this AD as of October 24,
2012.
ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov or in person at the U.S. Department of
Transportation, Docket Operations, M-30, West Building Ground Floor,
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC.
FOR FURTHER INFORMATION CONTACT: Cesar Gomez, 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) 228-7318; fax (516) 794-5531.
SUPPLEMENTARY INFORMATION:
Discussion
We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR
part 39 to include an AD that would apply to the specified products.
That NPRM was published in the Federal Register on March 20, 2012 (77
FR 16193). That NPRM proposed to correct an unsafe condition for the
specified products. The MCAI states:
Seven cases of on-ground hydraulic accumulator screw cap/end cap
failure have been experienced on CL-600-2B19 aeroplanes resulting in
loss of the associated hydraulic system and high-energy impact
damage to adjacent systems and structure. The lowest number of
flight cycles accumulated at the time of failure, to date, has been
6,991 flight cycles.
Although there have been no failures to date on any CL-600-2C10,
CL-600-2D15 or CL-600-2D24 aeroplanes, similar accumulators to those
installed on the CL-600-2B19, are installed. The part numbers (P/Ns)
of the accumulators installed on CL-600-2C10, CL-600-2D15 and CL-
600-2D24 aeroplanes are 900096-1 (Hydraulic System No. 1 and
Hydraulic System No. 2 accumulators), 900097-1 (Hydraulic System No.
3 accumulator) and 08-60204-001 (Inboard Brake and Outboard Brake
accumulators).
A detailed analysis of the calculated line of trajectory of a
failed screw cap/end cap for each of the accumulators has been
conducted, resulting in the identification of several areas where
systems and/or structural components could potentially be damaged.
Although all of the failures to date have occurred on the ground, an
in-flight failure affecting such components could potentially have
an adverse effect on the controllability of the aeroplane.
This [Canadian] directive gives instructions to conduct [an
inspection to determine if certain hydraulic accumulators are
installed and, if necessary,] repetitive ultrasonic inspections [for
cracking] of the Hydraulic System No. 1, Hydraulic System No. 2,
Hydraulic System No. 3, Inboard Brake and Outboard Brake
accumulators, P/Ns 900096-1, 900097-1, and 08-60204-001, that are
not identified by the letter ``M'' or ``T'' after the S/N [serial
number] on the identification plate.
* * * * *
Required actions include revising the maintenance program to include a
life limit for certain accumulators, and for airplanes on which
cracking is found during an ultrasonic inspection, replacing the
accumulator with a new accumulator containing the letter ``M'' or
``T'', as applicable, after the serial number on the identification
plate or with a new accumulator with a different part number, and
eventual replacement of certain accumulators with new accumulators. You
may obtain further information by examining the MCAI in the AD docket.
Comments
We gave the public the opportunity to participate in developing
this AD. We considered the comments received.
Request To Reference Most Recent Service Information
Comair Inc. (Comair) requested that we reference the most recent
service information. Comair also stated that the revised service
information has no effect on airplanes on which inspections,
replacements, or maintenance program revisions were accomplished using
the previous issues that were identified in the NPRM (77 FR 16193,
March 20, 2012).
We agree to reference the most recent service information of
certain service bulletins as identified below.
Bombardier Alert Service Bulletin A670BA-29-011, Revision
B, dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010 (for hydraulic system No. 1, and hydraulic system No. 2
accumulators).
Bombardier Alert Service Bulletin A670BA-29-012, Revision
B, dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010 (for hydraulic system No. 3 accumulators).
Bombardier Alert Service Bulletin A670BA-32-021, Revision
D, dated December 22, 2010, including Appendix A, Revision A, dated
October 18, 2007 (for inboard and outboard brake accumulators).
Bombardier Service Bulletin 670BA-29-013, Revision B,
dated December 22, 2010, including Appendix A, dated January 29, 2010
(for hydraulic system No. 1, and hydraulic system No. 2 accumulators).
Bombardier Service Bulletin 670BA-32-026, Revision B,
dated December 22, 2010, including Appendix A, dated January 29, 2010
(for inboard and outboard brake accumulators).
Bombardier Service Bulletin 670BA-32-028, Revision A,
dated February 3, 2011 (for inboard brake and outboard brake
accumulators).
This revised service information does not add more work to the
actions described in the NPRM (77 FR 16193, March 20, 2012). We have
revised paragraphs (i), (p), (q), and (t) of this AD accordingly.
Request To Include an Alternative Method of Compliance (AMOC) for a
Different Part Number (P/N)
Tactair Fluid Controls (Tactair) requested that we include a
hydraulic accumulator having P/N 11093-4 as an AMOC for replacing
hydraulic accumulators having P/N 08-60204-001. Tactair noted that more
than half
[[Page 57999]]
of the airplanes in the Model CL-600-2B19 fleet have been retrofitted
to P/N 11093-4. Tactair also indicated that allowing use of P/N 11093-4
would be more economical for operators.
We disagree with the commenter's request. Part number 11093-4 has
not yet been certified for use on Model CL-600-2C10 (Regional Jet
Series 700, 701, & 702), CL-600-2D15 (Regional Jet Series 705), or CL-
600-2D24 (Regional Jet Series 900) airplanes. Approval of AMOCs
provides alternative methods of compliance to the methods required to
be used in the associated AD. An AMOC is issued only after an AD has
been issued and only after data are provided to show that the proposed
solution is complete and addresses the unsafe condition. Once we issue
this AD, any person may request approval of an AMOC under the
provisions of paragraph (s)(1) of this AD. We have not changed this AD
in this regard.
Updated Credit Language
We have revised the heading and wording for paragraph (q) of this
AD to provide appropriate credit for previous accomplishment of certain
actions. This change does not affect the intent of that paragraph.
Conclusion
We reviewed the available data, including the comments received,
and determined that air safety and the public interest require adopting
the AD with the changes described previously.
Costs of Compliance
We estimate that this AD will affect 389 products of U.S. registry.
We also estimate that it will take up to 21 work-hours per product to
comply with the basic requirements of this AD. The average labor rate
is $85 per work-hour. Required parts will cost about $8,988 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 this AD to the
U.S. operators to be up to $4,190,697, or $10,773 per product, per
inspection cycle.
In addition, we estimate that any necessary follow-on actions would
take up to 7 work-hours and require parts costing $8,988, for a cost of
$9,583 per product. We have no way of determining the number of
products that may need these actions.
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 that 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);
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 AD and placed it in the AD docket.
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 the NPRM (77 FR 16193, March 20,
2012), 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.
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Incorporation by
reference, Safety.
Adoption of the Amendment
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:
2012-18-11 Bombardier, Inc.: Amendment 39-17188. Docket No. FAA-
2012-0142; Directorate Identifier 2010-NM-275-AD.
(a) Effective Date
This airworthiness directive (AD) becomes effective October 24,
2012.
(b) Affected ADs
None.
(c) Applicability
This AD applies to the airplanes identified in paragraphs (c)(1)
and (c)(2) of this AD, certificated in any category.
(1) Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700,
701, & 702) airplanes, with serial number (S/N) 10003 through 10314
inclusive.
(2) Bombardier, Inc. Model CL-600-2D15 (Regional Jet Series 705)
and CL-600-2D24 (Regional Jet Series 900) airplanes, with S/N 15001
through 15259 inclusive.
(d) Subject
Air Transport Association (ATA) of America Code 29: Hydraulic
Power, and 32: Landing Gear.
(e) Reason
This AD was prompted by reports of failures of a hydraulic
accumulator's screw-cap/end cap while on the ground that resulted in
loss of use of that hydraulic system, and in high-energy impact
damage to adjacent systems and structures. We are issuing this AD to
prevent loss of use of a hydraulic system, which could result in
reduced controllability 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) Inspection for Part Numbers (P/Ns)
At the applicable time specified in paragraphs (g)(1), (g)(2),
and (g)(3) of this AD, inspect the hydraulic accumulators in
hydraulic systems No. 1, No. 2, and No. 3, and the inboard and
outboard brake systems, to determine the part number of the
[[Page 58000]]
accumulator. A review of airplane maintenance records is acceptable
in lieu of this inspection if the part number of the accumulator can
be conclusively determined from that review.
(1) For an accumulator with more than 4,500 total flight cycles
as of the effective date of this AD, inspect that accumulator within
500 flight cycles after the effective date of this AD.
(2) For an accumulator with 4,500 or less total flight cycles as
of the effective date of this AD, inspect that accumulator before it
has accumulated 5,000 total flight cycles.
(3) If it is not possible to determine the total flight cycles
accumulated on an accumulator, inspect that accumulator within 500
flight cycles after the effective date of this AD.
(h) Inspection for Letter Designation After the Serial Number
If, during an inspection required by paragraph (g) of this AD,
an accumulator having P/N 900096-1 (for hydraulic systems No. 1 and
No. 2 accumulators), 900097-1 (for hydraulic system No. 3
accumulator), or 08-60204-001 (for inboard and outboard brake
accumulators) is found, at the applicable time specified in
paragraphs (g)(1), (g)(2), and (g)(3) of this AD, do an inspection
of the identification plate on the hydraulic accumulator to
determine if an ``M'' (for hydraulic system accumulators) or a ``T''
(for brake system accumulators) follows the serial number on the
identification plate. A review of airplane maintenance records is
acceptable in lieu of this inspection if the part number and the
letter of the accumulator can be conclusively determined from that
review.
Note 1 to paragraphs (h), (i), (k), (l)(2), and (m) of this AD:
The letter ``M'' after the serial number on the identification plate
is applicable to accumulators, P/Ns 900096-1 and 900097-1, on
hydraulic systems No. 1, No. 2, and No. 3. The letter ``T'' after
the serial number on the identification plate is applicable to
accumulators, P/N 08-60204-001, on the brake system.
(i) Initial Ultrasonic Inspections of Hydraulic System No. 1, Hydraulic
System No. 2, Hydraulic System No. 3, Inboard Brake, and Outboard Brake
Accumulators
If, during any inspection required by paragraph (h) of this AD,
any accumulator without the letter ``M'' (for hydraulic system
accumulators) or a ``T'' (for brake system accumulators) after the
serial number is found, at the applicable time specified in
paragraph (g)(1), (g)(2), or (g)(3) of this AD: Do an ultrasonic
inspection of the inner shoulders of the accumulator screw-cap for
cracking, in accordance with Part B of the Accomplishment
Instructions of the applicable Bombardier service bulletin
identified in paragraphs (i)(1), (i)(2), and (i)(3) of this AD, and
at the internal threads of the screw-caps, in accordance with the
Accomplishment Instructions of the applicable Bombardier service
bulletin identified in paragraphs (i)(4), (i)(5), and (i)(6) of this
AD.
(1) For hydraulic system No. 1, and hydraulic system No. 2
accumulators: Bombardier Alert Service Bulletin A670BA-29-011,
Revision B, dated December 22, 2010, including Appendix A, Revision
A, dated July 27, 2010.
(2) For hydraulic system No. 3 accumulators: Bombardier Alert
Service Bulletin A670BA-29-012, Revision B, dated December 22, 2010,
including Appendix A, Revision A, dated July 27, 2010.
(3) For inboard brake and outboard brake accumulators:
Bombardier Alert Service Bulletin A670BA-32-021, Revision D, dated
December 22, 2010, including Appendix A, Revision A, dated October
18, 2007.
(4) For hydraulic system No. 1 accumulators: Bombardier Service
Bulletin 670BA-29-013, Revision B, dated December 22, 2010,
including Appendix A, dated January 29, 2010.
(5) For hydraulic system No. 2 accumulators: Bombardier Service
Bulletin 670BA-29-013, Revision B, dated December 22, 2010,
including Appendix A, dated January 29, 2010.
(6) For inboard brake and outboard brake accumulators:
Bombardier Service Bulletin 670BA-32-026, Revision B, dated December
22, 2010, including Appendix A, dated January 29, 2010.
(j) No Cracking Found During Accomplishment of the Actions Required by
Paragraph (i) of This AD
If no cracking is found during the inspections required by
paragraph (i) of this AD, do the actions required by paragraph (l)
of this AD.
(k) Cracking Found During Accomplishment of the Actions Required by
Paragraph (i) of This AD
If any cracking is found during the inspections required by
paragraph (i) of this AD, before further flight, replace the
accumulator with a new accumulator containing the letter ``M'' or
``T'', as applicable, after the serial number on the identification
plate, in accordance with the Accomplishment Instructions of the
applicable service bulletin identified in paragraphs (i)(1) through
(i)(6) of this AD, or replace the accumulator with a new accumulator
as specified in paragraphs (k)(1) through (k)(3) of this AD, as
applicable.
(1) For any cracked hydraulic system No. 1 or No. 2 accumulator,
replace the cracked accumulator with a new accumulator, P/N 900121-
1, in accordance with the Accomplishment Instructions of Bombardier
Service Bulletin 670BA-29-014, dated December 22, 2010.
(2) For any cracked hydraulic system No. 3 accumulator, replace
the cracked accumulator with a new accumulator, P/N 900122-1, in
accordance with paragraph (o) of this AD.
(3) For any cracked inboard brake or outboard brake accumulator,
replace the cracked accumulator with a new accumulator, P/N
90006691, in accordance with paragraph (p) of this AD.
(l) Repetitive Ultrasonic Inspections of Hydraulic System No. 1,
Hydraulic System No. 2, Hydraulic System No. 3, Inboard Brake, and
Outboard Brake Accumulators
For each accumulator on which no cracking was found during any
inspection required by paragraph (i) of this AD, within 500 flight
cycles after the previous ultrasonic inspection, inspect the
accumulator in accordance with paragraph (i) of this AD.
(1) If no cracking is found, do the actions required by
paragraph (l) of this AD and repeat thereafter at intervals not to
exceed 500 flight cycles.
(2) If any cracking is found, before further flight, replace the
accumulator with a new accumulator containing the letter ``M'' or
``T,'' as applicable, after the serial number on the identification
plate, in accordance with the Accomplishment Instructions of the
applicable service bulletin identified in paragraphs (i)(1) through
(i)(6) of this AD, or replace the accumulator with a new accumulator
as specified in paragraphs (k)(1), (k)(2), and (k)(3) of this AD, as
applicable.
(m) Replacement of Hydraulic System No. 1 and No. 2 Accumulators
For airplanes on which a hydraulic system No. 1 or No. 2
accumulator having P/N 900096-1 without the letter ``M'' after the
serial number is installed: At the applicable time specified in
paragraphs (m)(1) and (m)(2) of this AD, replace the accumulator
with a new accumulator having P/N 900096-1 with the letter ``M''
after the serial number; or having P/N 900121-1, in accordance with
the Accomplishment Instructions of Bombardier Service Bulletin
670BA-29-014, dated December 22, 2010.
(1) For an accumulator with more than 19,500 total flight cycles
as of the effective date of this AD, replace that accumulator within
500 flight cycles after accomplishing the most recent inspection
required by paragraph (i) or (l) of this AD.
(2) For an accumulator with 19,500 or less total flight cycles
as of the effective date of this AD, replace that accumulator before
it has accumulated 20,000 total flight cycles.
(3) If it is not possible to determine the total flight cycles
accumulated on an accumulator, replace that accumulator within 500
flight cycles after accomplishing the most recent ultrasonic
inspection required by paragraph (i) or (l) of this AD.
(n) Hydraulic System Safe Life Limit Introduction
Within 60 days after the effective date of this AD, revise the
maintenance program to include a safe life limit for the hydraulic
system No. 1 and No. 2 accumulators, P/N 900096-1, by incorporating
Tasks 29-11-11-000-801 and 29-11-11-400-801 of Section 1.3--Safe
Life Components, of Part 2, Airworthiness Limitations, Revision 11,
dated October 20, 2010, of the Bombardier CL-600-2C10, CL-600-2D15,
CL-600-2D24, CL-600-2E25 Maintenance Requirements Manual, CSP B-053.
(o) Replacement of Hydraulic System No. 3 Accumulator
Within 4,000 flight cycles or 24 months after the effective date
of this AD, whichever occurs first, replace any hydraulic system No.
3 accumulator having P/N 900097-1 with a new accumulator having P/N
900122-1, in accordance with the Accomplishment Instructions of
Bombardier Service Bulletin 670BA-29-015, dated December 22, 2010.
[[Page 58001]]
(p) Replacement of Inboard or Outboard Brake System Accumulators
Within 4,000 flight cycles or 24 months after the effective date
of this AD, whichever occurs first, replace any inboard or outboard
brake system accumulator having P/N 08-60204-001 with a new
accumulator having P/N 90006691, in accordance with the
Accomplishment Instructions of Bombardier Service Bulletin 670BA-32-
028, Revision A, dated February 3, 2011.
(q) Credit for Previous Actions
(1) This paragraph provides credit for the actions required by
paragraph (i) of this AD, if those actions were performed before the
effective date of this AD using Part B of the Accomplishment
Instructions of the Bombardier service bulletin identified in
paragraph (q)(1)(i), (q)(1)(ii), (q)(1)(iii), (q)(1)(iv), (q)(1)(v),
(q)(1)(vi), (q)(1)(vii), or (q)(1)(viii) of this AD.
(i) Bombardier Alert Service Bulletin A670BA-29-011, dated
October 18, 2007.
(ii) Bombardier Alert Service Bulletin A670BA-29-011, Revision
A, dated July 27, 2010.
(iii) Bombardier Alert Service Bulletin A670BA-29-012, dated
March 13, 2008.
(iv) Bombardier Alert Service Bulletin A670BA-29-012, Revision
A, dated July 27, 2010.
(v) Bombardier Alert Service Bulletin A670BA-32-021, dated
November 21, 2006.
(vi) Bombardier Alert Service Bulletin A670BA-32-021, Revision
A, dated March 7, 2007.
(vii) Bombardier Alert Service Bulletin A670BA-32-021, Revision
B, dated October 18, 2007.
(viii) Bombardier Service Bulletin A670BA-32-021, Revision C,
dated July 27, 2010.
(2) This paragraph provides credit for the actions required by
paragraphs (i) and (p) of this AD, if those actions were performed
before the effective date of this AD using the Accomplishment
Instructions of the Bombardier service bulletin identified in
paragraph (q)(2)(i), (q)(2)(ii), (q)(2)(iii), (q)(2)(iv), or
(q)(2)(v) of this AD.
(i) Bombardier Service Bulletin 670BA-29-013, dated January 29,
2010.
(ii) Bombardier Service Bulletin 670BA-29-013, Revision A, dated
July 27, 2010.
(iii) Bombardier Service Bulletin 670BA-32-026, dated January
29, 2010.
(iv) Bombardier Service Bulletin 670BA-32-026, Revision A, dated
July 27, 2010.
(v) Bombardier Service Bulletin 670BA-32-028, dated December 22,
2010.
(r) Terminating Actions
Accomplishing the actions required by paragraphs (m), (n), (o),
and (p) of this AD terminates the requirements of this AD for the
accumulator at that location only.
(s) 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 (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 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.
(t) Related Information
Refer to Mandatory Continuing Airworthiness Information (MCAI)
Canadian Airworthiness Directive CF-2010-35R1, dated June 28, 2011,
and the service information identified in paragraphs (t)(1) through
(t)(9) of this AD, for related information.
(1) Bombardier Alert Service Bulletin A670BA-29-011, Revision B,
dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010.
(2) Bombardier Alert Service Bulletin A670BA-29-012, Revision B,
dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010.
(3) Bombardier Alert Service Bulletin A670BA-32-021, Revision D,
dated December 22, 2010, including Appendix A, Revision A, dated
October 18, 2007.
(4) Bombardier Service Bulletin 670BA-29-013, Revision B, dated
December 22, 2010, including Appendix A, dated January 29, 2010.
(5) Bombardier Service Bulletin 670BA-32-026, Revision B, dated
December 22, 2010, including Appendix A, dated January 29, 2010.
(6) Bombardier Service Bulletin 670BA-29-014, dated December 22,
2010.
(7) Bombardier Service Bulletin 670BA-29-015, dated December 22,
2010.
(8) Bombardier Service Bulletin 670BA-32-028, Revision A, dated
February 3, 2011.
(9) Tasks 29-11-11-000-801 and 29-11-11-400-801 of Section 1.3--
Safe Life Components, of Part 2, Airworthiness Limitations, Revision
11, dated October 20, 2010, of the Bombardier CL-600-2C10, CL-600-
2D15, CL-600-2D24, CL-600-2E25 Maintenance Requirements Manual, CSP
B-053.
(u) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the following service
information under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use the following service information to do the
actions required by this AD, unless the AD specifies otherwise.
(i) Bombardier Alert Service Bulletin A670BA-29-011, Revision B,
dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010.
(ii) Bombardier Alert Service Bulletin A670BA-29-012, Revision
B, dated December 22, 2010, including Appendix A, Revision A, dated
July 27, 2010.
(iii) Bombardier Alert Service Bulletin A670BA-32-021, Revision
D, dated December 22, 2010, including Appendix A, Revision A, dated
October 18, 2007.
(iv) Bombardier Service Bulletin 670BA-29-013, Revision B, dated
December 22, 2010, including Appendix A, dated January 29, 2010.
(v) Bombardier Service Bulletin 670BA-32-026, Revision B, dated
December 22, 2010, including Appendix A, dated January 29, 2010.
(vi) Bombardier Service Bulletin 670BA-29-014, dated December
22, 2010.
(vii) Bombardier Service Bulletin 670BA-29-015, dated December
22, 2010.
(viii) Bombardier Service Bulletin 670BA-32-028, Revision A,
dated February 3, 2011.
(ix) Tasks 29-11-11-000-801 and 29-11-11-400-801 of Section
1.3--Safe Life Components, of Part 2, Airworthiness Limitations,
Revision 11, dated October 20, 2010, of the Bombardier CL-600-2C10,
CL-600-2D15, CL-600-2D24, CL-600-2E25 Maintenance Requirements
Manual, CSP B-053.
(3) 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 [email protected]; Internet http://www.bombardier.com.
(4) You may review copies of the 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.
(5) 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 an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.
Issued in Renton, Washington, on August 31, 2012.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2012-22042 Filed 9-18-12; 8:45 am]
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