Document ID: FAA-2010-1039-0006
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100&440) Airplanes
Posted Date: 2011-02-24T05:00Z

[Federal Register Volume 76, Number 37 (Thursday, February 24, 2011)]
[Rules and Regulations]
[Pages 10216-10220]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-4012]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2010-1039; Directorate Identifier 2010-NM-002-AD; 
Amendment 39-16612; AD 2011-05-03]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc. Model CL-600-2B19 
(Regional Jet Series 100 & 440) Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: We are superseding an existing airworthiness directive (AD) 
that applies to 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:

    There has been numerous reported failures of the Regional Jet 
engine TCGB [throttle control gearbox] P/Ns: 2100140-003, 2100140-
005 & 2100140-007. Some of these failures have resulted in in-flight 
engine shutdowns. Post incident investigations revealed that 
excessive wear within the

[[Page 10217]]

engine TCGB could alter the rigging position or cause the throttle 
to jam. With the rigging position altered, movement of the throttle 
lever towards the idle position can result in throttle moving too 
close to the fuel shut-off position, which potentially, can cause 
the engine to flame out.

* * * * *
We are issuing this AD to require actions to correct the unsafe 
condition on these products.

DATES: This AD becomes effective March 31, 2011.
    The Director of the Federal Register approved the incorporation by 
reference of certain publications listed in this AD as of March 31, 
2011.

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: Rocco Viselli, Senior Aviation Safety 
Engineer, Avionic & Flight Test Branch, ANE-172, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7331; fax (516) 794-5531; e-mail 
Rocco.Viselli@faa.gov.

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 October 21, 2010 (75 
FR 64960), and proposed to supersede AD 2005-06-04, Amendment 39-14012 
(70 FR 12963, March 17, 2005). That NPRM proposed to correct an unsafe 
condition for the specified products.
    Since we issued AD 2005-06-04, the inspection for the throttle 
control gearbox (TCGB) required by that AD has been transcribed in a 
new certification maintenance requirement (CMR) task. This AD mandates 
the incorporation of new CMR Task C76-11-127-01 into the Bombardier CL-
600-2B19 Maintenance Requirements Manual (MRM) as introduced by 
Bombardier Temporary Revision 2A-47. Transport Canada Civil Aviation 
(TCCA), which is the aviation authority for Canada, has issued Canadian 
Airworthiness Directive CF-2004-01R2, dated September 29, 2009 
(referred to after this as ``the MCAI''), to correct an unsafe 
condition for the specified products. The MCAI states:

    There has been numerous reported failures of the Regional Jet 
engine TCGB [throttle control gearbox] P/Ns: 2100140-003, 2100140-
005 & 2100140-007. Some of these failures have resulted in in-flight 
engine shutdowns. Post incident investigations revealed that 
excessive wear within the engine TCGB could alter the rigging 
position or cause the throttle to jam. With the rigging position 
altered, movement of the throttle lever towards the idle position 
can result in throttle moving too close to the fuel shut-off 
position, which potentially, can cause the engine to flame out.
    Bombardier issued Service Bulletin (SB) 601R-76-019 dated 21 
August 2003, to introduce an inspection of, and if required, 
replacement of the throttle control gearbox with a serviceable unit. 
AD CF-2004-01 was originally issued to mandate the subject 
inspection requirement as per SB 601R-76-019 and subsequent 
revisions.
    The subject TCGB inspection requirements mandated as per the 
earlier versions of this [Canadian] AD, are now transcribed in a new 
Certification Maintenance Requirement (CMR) task. This revision is 
issued to mandate the incorporation of the new CMR task [Task C76-
11-127-01] into the CL-600-2B19 Maintenance Requirements Manual 
(MRM), as introduced by the MRM Temporary Revision (TR) 2A-47.

You may obtain further information by examining the MCAI in the AD 
docket.

Relevant Service Information

    The NPRM referred to Bombardier Service Bulletin 601R-76-019, 
Revision C, dated July 5, 2007, as the appropriate source of service 
information for accomplishing certain proposed actions. Bombardier Inc. 
has issued Service Bulletin 601R-76-019, Revision D, dated September 
23, 2010. This service bulletin does not add any work for the affected 
airplanes. We have revised this final rule to refer to Bombardier 
Service Bulletin 601R-76-019, Revision D, dated September 23, 2010, as 
the appropriate source of service information for accomplishing the 
applicable actions.
    We have added new paragraph (m) to this final rule to give credit 
to operators for accomplishing the applicable actions before the 
effective date of this AD in accordance with Bombardier Service 
Bulletin 601R-76-019, Revision C, dated July 5, 2007. We have re-
identified subsequent paragraphs accordingly.
    The NPRM also referred to Bombardier Temporary Revision 2A-47, 
dated May 27, 2009, to Appendix A--Certification Maintenance 
Requirements, of Part 2 of the Bombardier CL-600-2B19 Maintenance 
Requirements Manual for incorporating new CMR Task C76-11-127-01 into 
the maintenance program. Bombardier Inc. has issued Temporary Revision 
2A-53, dated December 15, 2010, to Appendix A--Certification 
Maintenance Requirements, of Part 2 of the Bombardier CL-600-2B19 
Maintenance Requirements Manual. Bombardier Temporary Revision 2A-53, 
dated December 15, 2010, was issued to revise the task description of 
CMR Task C76-11-127-01. We have revised this final rule to allow 
operators to use either Bombardier Temporary Revision 2A-47, dated May 
27, 2009; or Bombardier Temporary Revision 2A-53, dated December 15, 
2010; for revising the maintenance program to include CMR Task C76-11-
127-01.
    The actions described in this service information are intended to 
correct the unsafe condition identified in the MCAI.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Conclusion

    We reviewed the available data and determined that air safety and 
the public interest require adopting the AD with the changes described 
previously. We determined that these changes will not increase the 
economic burden on any operator or increase the scope of the AD.

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 required different actions in this AD from those 
in the MCAI in order to follow our FAA policies. Any such differences 
are highlighted in a Note within the AD.

Costs of Compliance

    We estimate that this AD will affect about 638 products of U.S. 
registry.
    The actions that are required by AD 2005-06-04 and retained in this 
AD take about 7 work-hours per product, at an average labor rate of $85 
per work-hour. Based on these figures, the estimated cost of the 
currently required actions is $595 per product.
    We estimate that it will take about 1 work-hour per product to 
comply with the new basic requirements of this AD. The average labor 
rate is $85 per work-

[[Page 10218]]

hour. Based on these figures, we estimate the cost of this AD to the 
U.S. operators to be $54,230, 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 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.

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, 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 removing Amendment 39-14012 (70 FR 
12963, March 17, 2005) and adding the following new AD:

2011-05-03 Bombardier, Inc.: Amendment 39-16612. Docket No. FAA-
2010-1039; Directorate Identifier 2010-NM-002-AD.

Effective Date

    (a) This airworthiness directive (AD) becomes effective March 
31, 2011.

Affected ADs

    (b) The AD supersedes AD 2005-06-04, Amendment 39-14012.

Applicability

    (c) This AD applies to Bombardier, Inc. Model CL-600-2B19 
(Regional Jet Series 100 & 440) airplanes, certificated in any 
category, having an engine throttle control gearbox (TCGB) with part 
number 2100140-003, 2100140-005, or 2100140-007 installed.

    Note 1:  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 (n)(1) of this AD. The request should include a 
description of changes to the required inspections that will ensure 
the continued operational safety of the airplane.

Subject

    (d) Air Transport Association (ATA) of America Code 76: Engine 
Controls.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:
    There has been numerous reported failures of the Regional Jet 
engine TCGB P/Ns: 2100140-003, 2100140-005 & 2100140-007. Some of 
these failures have resulted in in-flight engine shutdowns. Post 
incident investigations revealed that excessive wear within the 
engine TCGB could alter the rigging position or cause the throttle 
to jam. With the rigging position altered, movement of the throttle 
lever towards the idle position can result in throttle moving too 
close to the fuel shut-off position, which potentially, can cause 
the engine to flame out.
    Bombardier issued Service Bulletin (SB) 601R-76-019 dated 21 
August 2003, to introduce an inspection of, and if required, 
replacement of the throttle control gearbox with a serviceable unit. 
AD CF-2004-01 was originally issued to mandate the subject 
inspection requirement as per SB 601R-76-019 and subsequent 
revisions.
    The subject TCGB inspection requirements mandated as per the 
earlier versions of this [Canadian] AD, are now transcribed in a new 
Certification Maintenance Requirement (CMR) task. This revision is 
issued to mandate the incorporation of the new CMR task [Task C76-
11-127-01] into the CL-600-2B19 Maintenance Requirements Manual 
(MRM), as introduced by the MRM Temporary Revision (TR) 2A-47.

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.

Restatement of Requirements of AD 2005-06-04, With New Service 
Information

Inspection

    (g) For airplanes having serial numbers (S/Ns) 7003 through 7067 
inclusive, and 7069 and subsequent: At the applicable time specified 
in paragraph (g)(1) or (g)(2) of this AD, do a detailed inspection 
for wear of the left and right engine throttle control gearboxes 
having part number (P/N) 2100140-005 or 2100140-007 by doing all the 
actions per Part A, paragraphs A., B., and C.(1) through C.(4), of 
the Accomplishment Instructions of Bombardier Service Bulletin 601R-
76-019, dated August 21, 2003; Revision `A,' dated February 19, 
2004; Revision B, dated February 16, 2005; Revision C, dated July 5, 
2007; or Revision D, dated September 23, 2010. If the wear value is 
the same as that specified in Part A, paragraph B.(8), of the 
Accomplishment Instructions of Bombardier Service Bulletin 601R-76-
019, dated August 21, 2003; Revision `A,' dated February 19, 2004; 
Revision B, dated February 16, 2005; Revision C, dated July 5, 2007; 
or Revision D, dated September 23, 2010; repeat the inspection 
thereafter at intervals not to exceed 1,000 flight hours. As of the 
effective date of this AD, only Bombardier Service Bulletin 601R-76-
019, Revision D, dated September 23, 2010, may be used. Doing the 
inspection required by paragraph (k) of this AD terminates the 
requirement in this paragraph.
    (1) For airplanes having S/Ns 7003 through 7067 inclusive and 
7069 through 7999 inclusive: Within 1,000 flight hours or 90 days 
after March 25, 2004 (the effective date of AD 2004-05-12), 
whichever is later.
    (2) For airplanes having S/Ns 8000 and subsequent: Within 1,000 
flight hours or 90

[[Page 10219]]

days after April 1, 2005 (the effective date of AD 2005-06-04), 
whichever is later.

    Note 2: For the purposes of this AD, a detailed inspection is: 
``An intensive visual examination of a specific structural area, 
system, installation, or assembly to detect damage, failure, or 
irregularity. Available lighting is normally supplemented with a 
direct source of good lighting at an intensity deemed appropriate by 
the inspector. Inspection aids such as mirror, magnifying lenses, 
etc., may be used. Surface cleaning and elaborate access procedures 
may be required.''

Corrective Action

    (h) If the wear value found during any inspection required by 
paragraph (g) of this AD is not the same as that specified in Part 
A, paragraph B.(8), of the Accomplishment Instructions of Bombardier 
Service Bulletin 601R-76-019, dated August 21, 2003; Revision `A,' 
dated February 19, 2004; Revision B, dated February 16, 2005; 
Revision C, dated July 5, 2007; or Revision D, dated September 23, 
2010: Do the applicable actions required by paragraph (h)(1), 
(h)(2), or (h)(3) of this AD, at the time specified, per the 
Accomplishment Instructions of Bombardier Service Bulletin 601R-76-
019, dated August 21, 2003; Revision `A,' dated February 19, 2004; 
Revision B, dated February 16, 2005; Revision C, dated July 5, 2007; 
or Revision D, dated September 23, 2010. Repeat the inspection 
required by paragraph (g) of this AD thereafter at intervals not to 
exceed 1,000 flight hours. As of the effective date of this AD, only 
Bombardier Service Bulletin 601R-76-019, Revision D, dated September 
23, 2010, may be used. Doing the inspection required by paragraph 
(k) of this AD terminates the inspection requirements of this 
paragraph.
    (1) If the wear value on one or both of the gearboxes is the 
same as that specified in Part A, paragraph B.(5), of the 
Accomplishment Instructions of Bombardier Service Bulletin 601R-76-
019, dated August 21, 2003; Revision `A,' dated February 19, 2004; 
Revision B, dated February 16, 2005; Revision C, dated July 5, 2007; 
or Revision D, dated September 23, 2010: Before further flight, 
replace the affected gearbox with a new or serviceable gearbox, by 
doing all the actions per Part B, paragraphs D. through F.(7), of 
the Accomplishment Instructions of Bombardier Service Bulletin 601R-
76-019, dated August 21, 2003; Revision `A,' dated February 19, 
2004; Revision B, dated February 16, 2005; Revision C, dated July 5, 
2007; or Revision D, dated September 23, 2010. As of the effective 
date of this AD, only Bombardier Service Bulletin 601R-76-019, 
Revision D, dated September 23, 2010, may be used.
    (2) If the wear value on both the left and right gearboxes is 
the same as that specified in Part A, paragraph B.(6), of Bombardier 
Service Bulletin 601R-76-019, dated August 21, 2003; Revision `A,' 
dated February 19, 2004; Revision B, dated February 16, 2005; 
Revision C, dated July 5, 2007; or Revision D, dated September 23, 
2010: Before further flight, replace the gearbox having the higher 
wear value with a new or serviceable gearbox, by doing all the 
actions per Part B, paragraphs D. through F.(7), of the 
Accomplishment Instructions of Bombardier Service Bulletin 601R-76-
019, dated August 21, 2003; Revision `A,' dated February 19, 2004; 
Revision B, dated February 16, 2005; Revision C, dated July 5, 2007; 
or Revision D, dated September 23, 2010. Within 1,000 flight hours 
after doing the replacement, replace the other gearbox. As of the 
effective date of this AD, only Bombardier Service Bulletin 601R-76-
019, Revision D, dated September 23, 2010, may be used.
    (3) If the wear value on only one gearbox is the same as that 
specified in Part A, paragraph B.(7), and the wear value on the 
other gearbox is the same as that specified in Part A, paragraph 
B.(8), of the Accomplishment Instructions of Bombardier Service 
Bulletin 601R-76-019, dated August 21, 2003; Revision `A,' dated 
February 19, 2004; Revision B, dated February 16, 2005; Revision C, 
dated July 5, 2007; or Revision D, dated September 23, 2010: Within 
1,000 flight hours after the inspection, replace the gearbox with 
the wear value that is the same as that specified in Part A, 
paragraph B.(7), with a new or serviceable gearbox. Do the 
replacement by doing all the actions per Part B, paragraphs D. 
through F.(7), of the Accomplishment Instructions of Bombardier 
Service Bulletin 601R-76-019, dated August 21, 2003; Revision `A,' 
dated February 19, 2004; Revision B, dated February 16, 2005; 
Revision C, dated July 5, 2007; or Revision D, dated September 23, 
2010. As of the effective date of this AD, only Bombardier Service 
Bulletin 601R-76-019, Revision D, dated September 23, 2010, may be 
used.

Additional Guidance

    Note 3:  Bombardier Service Bulletin 601R-76-019, dated August 
21, 2003; Revision `A,' dated February 19, 2004; Revision B, dated 
February 16, 2005; Revision C, dated July 5, 2007; and Revision D, 
dated September 23, 2010; reference Trans Digm, Inc., AeroControlex 
Group Service Bulletin 2100140-007-76-04, dated July 22, 2003, as an 
additional source of guidance for accomplishment of the inspections 
and replacement.

Reporting Requirement

    (i) At the applicable time specified in paragraph (i)(1) or 
(i)(2) of this AD, submit a report of gearbox wear to Bombardier 
Aerospace, In-Service Engineering (Engine Group); fax (514) 855-
7708. The report must include the airplane serial number, the number 
of flight hours on the airplane, and the number of flight hours on 
each gearbox (if different than the number of flight hours on the 
airplane).
    (1) For Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 
440) airplanes, serial numbers 7003 through 7067 inclusive, and 7069 
through 7999 inclusive: Submit a report within 10 days after doing 
the inspection required by paragraph (g) of this AD, or within 10 
days after March 25, 2004, whichever is later.
    (2) For Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 
440) airplanes, serial numbers 8000 and subsequent: Submit a report 
within 10 days after doing the inspection required by paragraph (g) 
of this AD, or within 10 days after April 1, 2005 (the effective 
date of AD 2005-06-04), whichever is later.

New Requirements of This AD

Actions

    (j) For all airplanes: Within 30 days after the effective date 
of this AD, revise the maintenance program to include new CMR Task 
C76-11-127-01 specified in Bombardier Temporary Revision 2A-47, 
dated May 27, 2009; or Bombardier Temporary Revision 2A-53, dated 
December 15, 2010; to Appendix A--Certification Maintenance 
Requirements, of Part 2 of the Bombardier CL-600-2B19 Maintenance 
Requirements Manual.

    Note 4:  The actions required by paragraph (j) of this AD may be 
done by inserting a copy of Bombardier Temporary Revision 2A-47, 
dated May 27, 2009; or Bombardier Temporary Revision 2A-53, dated 
December 15, 2010; into the AWL section of Appendix A--Certification 
Maintenance Requirements, of Part 2 of the Bombardier CL-600-2B19 
Maintenance Requirements Manual. When this temporary revision has 
been included in the limitation section of the general revisions of 
the document, the general revisions may be inserted in the document, 
provided the relevant information (CMR Task C76-11-127-01) in the 
general revision is identical to that in Bombardier Temporary 
Revision 2A-47, dated May 27, 2009; or Bombardier Temporary Revision 
2A-53, dated December 15, 2010.

    (k) For CMR Task C76-11-127-01 identified in Bombardier 
Temporary Revision 2A-47, dated May 27, 2009; or Bombardier 
Temporary Revision 2A-53, dated December 15, 2010; do the initial 
inspection within 1,000 flight hours after the effective date of 
this AD. Doing the initial inspection required by this paragraph 
terminates the requirements of paragraph (g) of this AD and the 
inspection requirements of paragraph (h) of this AD.
    (l) Thereafter, except as provided by paragraph (n) of this AD, 
no alternative intervals may be approved for CMR Task C76-11-127-01 
identified in Bombardier Temporary Revision 2A-47, dated May 27, 
2009; or Bombardier Temporary Revision 2A-53, dated December 15, 
2010; which require a special detailed inspection of the throttle 
control gearbox for gear and rack teeth wear.
    (m) Accomplishment of the actions specified in paragraphs (g) 
and (h) of this AD before the effective date of this AD according to 
Bombardier Service Bulletin 601R-76-019, Revision C, dated July 5, 
2007, is acceptable for compliance with the corresponding 
requirements of this AD.

FAA AD Differences

    Note 5:  This AD differs from the MCAI and/or service 
information as follows: No differences.

Other FAA AD Provisions

    (n) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft

[[Page 10220]]

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.
    (3) Reporting Requirements: A federal agency may not conduct or 
sponsor, and a person is not required to respond to, nor shall a 
person be subject to a penalty for failure to comply with a 
collection of information subject to the requirements of the 
Paperwork Reduction Act unless that collection of information 
displays a current valid OMB Control Number. The OMB Control Number 
for this information collection is 2120-0056. Public reporting for 
this collection of information is estimated to be approximately 5 
minutes per response, including the time for reviewing instructions, 
completing and reviewing the collection of information. All 
responses to this collection of information are mandatory. Comments 
concerning the accuracy of this burden and suggestions for reducing 
the burden should be directed to the FAA at: 800 Independence Ave., 
SW., Washington, DC 20591, Attn: Information Collection Clearance 
Officer, AES-200.

Related Information

    (o) Refer to MCAI Canadian Airworthiness Directive CF-2004-01R2, 
dated September 29, 2009; Bombardier Service Bulletin 601R-76-019, 
Revision D, dated September 23, 2010; and Bombardier Temporary 
Revision 2A-47, dated May 27, 2009, or Bombardier Temporary Revision 
2A-53, dated December 15, 2010, to Appendix A--Certification 
Maintenance Requirements, of Part 2 of the Bombardier CL-600-2B19 
Maintenance Requirements Manual; for related information.

Material Incorporated by Reference

    (p) You must use Bombardier Service Bulletin 601R-76-019, 
Revision D, dated September 23, 2010; and Bombardier Temporary 
Revision 2A-47, dated May 27, 2009, or Bombardier Temporary Revision 
2A-53, dated December 15, 2010, to Appendix A--Certification 
Maintenance Requirements, of Part 2 of the Bombardier CL-600-2B19 
Maintenance Requirements Manual; as applicable; 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 thd.crj@aero.bombardier.com; 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.

    Issued in Renton, Washington, on February 14, 2011.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2011-4012 Filed 2-23-11; 8:45 am]
BILLING CODE 4910-13-P