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[Federal Register Volume 77, Number 239 (Wednesday, December 12, 2012)]
[Rules and Regulations]
[Pages 73902-73906]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2012-29708]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2012-0496; Directorate Identifier 2011-NM-263-AD; 
Amendment 39-17283; AD 2012-25-02]
RIN 2120-AA64

Airworthiness Directives; Bombardier, Inc. Airplanes

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

ACTION: Final rule.

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[[Page 73903]]

SUMMARY: We are superseding an existing airworthiness directive (AD) 
for certain Bombardier, Inc. Model CL-600-2B19 (Regional Jet Series 100 
& 440) airplanes. That AD currently requires revising the airworthiness 
limitations section (AWL) of the Instructions for Continued 
Airworthiness (ICA) of the Canadair Regional Jet Maintenance 
Requirements Manual (MRM) by incorporating new procedures for 
repetitive detailed and special detailed inspections for cracking of 
the aft pressure bulkhead. This new AD requires revising the 
maintenance program to incorporate a revised task specified in a 
certain temporary revision, which requires an improved non-destructive 
inspection procedure; and adds airplanes to the applicability. This AD 
was prompted by multiple reports of cracks on the forward face of the 
rear pressure bulkhead (RPB) web. We are issuing this AD to detect and 
correct cracking in the RPB, which could result in reduced structural 
integrity and rapid decompression of the airplane.

DATES: This AD becomes effective January 16, 2013.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of January 16, 
2013.
    The Director of the Federal Register approved the incorporation by 
reference of a certain other publication listed in this AD as of 
November 29, 2005 (70 FR 69073, November 14, 2005).

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: Jeffrey Zimmer, 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) 228-7306; 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 June 1, 2012 (77 FR 
32439), and proposed to supersede AD 2005-23-01, Amendment 39-14359 (70 
FR 69073, November 14, 2005). That NPRM proposed to correct an unsafe 
condition for the specified products. Transport Canada Civil Aviation 
(TCCA) Mandatory Continuing Airworthiness Information (MCAI) states:

    Cracks on the forward face of the Rear Pressure Bulkhead (RPB) 
web have been discovered on three CL-600-2B19 aeroplanes in-service. 
This indicates that the existing inspection requirements of 
Airworthiness Limitation (AWL) task 53-61-153 mandated by [TCCA] AD 
CF-2005-13R1 are not adequate. Failure of the RPB could result in 
rapid decompression of the aeroplane.
    A Temporary Revision (TR) has been made to Part 2 of the 
Maintenance Requirements Manual (MRM) to revise the existing AWL 
task by introducing an improved Non-Destructive Inspection (NDI) 
procedure to ensure that fatigue cracking of the RPB is detected and 
corrected.
    This [TCCA] directive mandates the incorporation of a new NDI 
procedure for AWL task number 53-61-153.

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 have considered the comments received.

Request To Remove Certain Paragraphs of the NPRM (77 FR 32439, June 1, 
2012)

    Air Wisconsin requested that we remove paragraphs (g) and (h) from 
the NPRM (77 FR 32439, June 1, 2012) because paragraph (i) of the NPRM 
supersedes those paragraphs. Air Wisconsin stated several examples of 
how paragraphs (g) and (h) are superseded by paragraph (i) of the NPRM.
    We disagree with the commenter's request to remove paragraphs (g) 
and (h) from this final rule. We find it necessary to restate those 
paragraphs in this final rule to ensure the existing inspections are 
done until the required maintenance program revision specified in 
paragraph (i) of this AD is accomplished. In addition, if an airplane 
is imported into the United States, it is necessary to accomplish the 
requirements of paragraph (g) of this AD before the airplane may be 
operated in this country.
    However, we find that clarification of paragraph (i) of this AD is 
necessary. Once the maintenance program revision is accomplished, the 
restated requirements of paragraph (g) of this AD are terminated. 
Therefore, we have revised the last sentence of paragraph (i) of this 
AD to specify that doing the revision required by paragraph (i) of this 
AD terminates the requirements of paragraph (g) of this AD.
    In addition, we have retained paragraph (h) in this final rule 
because it is necessary to allow Canadair Regional Jet Temporary 
Revision TR 2B-2109, dated October 13, 2005, to be removed from the 
maintenance requirements manual once a general revision is done. 
Further, we have determined that it is necessary to add a paragraph 
similar to paragraph (h) of this AD to allow removal of the temporary 
revision specified in paragraph (i) of this AD. Accordingly, we have 
revised this final rule to add new paragraph (k) to this AD to specify 
that information. Subsequent paragraphs have been reidentified.

Request To Revise Serial Numbers

    Air Wisconsin requested that we correct the serial numbers in 
paragraph (c) or (g) of the NPRM (77 FR 32439, June 1, 2012) for 
consistency.
    We disagree with the request. The serial numbers specified in 
paragraph (g) of this AD are only those that were part of the 
applicability of AD 2005-23-01, Amendment 39-14359 (70 FR 69073, 
November 14, 2005). Paragraph (c) of this AD lists all serial numbers 
that are affected by this new AD.

Requests To Clarify Compliance Time

    In regard to paragraph (i)(2) of the NPRM (77 FR 32439, June 1, 
2012), Air Wisconsin requested we clarify that, if the last inspection 
performed met the requirements of AWL 53-61-153 specified in Bombardier 
TR 2B-2187, dated June 22, 2011, to Appendix B--Airworthiness 
Limitations, of Part 2 of the Bombardier CL-600-2B19 MRM, the next 
inspection cycle as specified in that TR is acceptable provided that 
interval is not greater than that specified in Bombardier TR 2B-2187, 
dated June 22, 2011.
    In addition, Comair requested that we provide credit for paragraph 
(i) of the NPRM (77 FR 32439, June 1, 2012) for operators that 
performed previous inspections using the special detailed inspection 
option specified in AWL 53-61-153 of the Canadair Regional Jet TR 2B-
2109, dated October 13, 2005, to Appendix B, ``Airworthiness 
Limitations,'' of Part 2 of the Canadair Regional Jet MRM. Comair 
stated that it requested this credit so that operators would not be 
subject to the initial compliance time specified in paragraph (i)(1) or 
(i)(2) of the NPRM (77 FR 32439, June 1, 2012).
    We agree to clarify the inspection compliance time. We agree that, 
if the last special detailed inspection (not the detailed visual 
inspection) performed met the requirements of AWL 53-61-153 specified 
in Bombardier TR 2B-2187, dated June 22, 2011; or Canadair Regional Jet 
TR 2B-2109, dated October

[[Page 73904]]

13, 2005; to Appendix B--Airworthiness Limitations, of Part 2 of the 
Bombardier CL-600-2B19 MRM; the next inspection should be at the next 
compliance time specified in AWL 53-61-153 of Bombardier TR 2B-2187, 
dated June 22, 2011 (i.e., within 4,360 landings since the last 
inspection). We have changed paragraph (i) of this AD to state that for 
airplanes that have already complied with AWL 53-61-153 of Bombardier 
TR 2B-2187, dated June 22, 2011, or the special detailed inspection 
option specified in Canadair Regional Jet TR 2B-2109, dated October 13, 
2005, the initial compliance time for AWL 53-61-153 is within 4,360 
flight cycles after accomplishing the most recent special detailed 
inspection, or within 1,500 flight cycles after accomplishing the most 
recent detailed inspection as specified in AWL 53-61-153 of Canadair 
Regional Jet TR 2B-2109, dated October 13, 2005, whichever occurs 
later.

Request To Approve Previous Alternative Methods of Compliance (AMOC)

    Air Wisconsin requested that a statement be added to paragraph (k) 
of the NPRM (77 FR 32439, June 1, 2012) approving use of existing AMOCs 
that were approved previously in accordance with AD 2005-23-01, 
Amendment 39-14359 (70 FR 69073, November 14, 2005).
    We agree to allow existing AMOCs approved in accordance with AD 
2005-23-01, Amendment 39-14359 (70 FR 69073, November 14, 2005), as 
AMOCs for the corresponding requirements of paragraphs (g) and (h) of 
this AD only. We have revised paragraph (l)(1) of this AD (referred to 
as paragraph (k)(1) of the NPRM (77 FR 32439, June 1, 2012)) 
accordingly.

Request To Remove Reference to a Certain TR

    Air Wisconsin requested that we remove the reference to Canadair 
Regional Jet TR 2B-2109, dated October 13, 2005, to Appendix B--
Airworthiness Limitations, of Part 2 of the Bombardier CL-600-2B19 MRM 
from paragraph (j) of the NPRM (77 FR 32439, June 1, 2012). Air 
Wisconsin noted that Canadair Regional Jet TR 2B-2109, dated October 
13, 2005, conflicts with Bombardier TR 2B-2187, dated June 22, 2011, 
and stated that Bombardier TR 2B-2187, dated June 22, 2011, 
specifically removed the ``visual inspection'' option that was in 
Canadair Regional Jet TR 2B-2109, dated October 13, 2005.
    We agree with the request for the reasons stated by the commenter. 
We have removed the reference to Canadair Regional Jet TR 2B-2109, 
dated October 13, 2005, to Appendix B--Airworthiness Limitations, of 
Part 2 of the Bombardier CL-600-2B19 MRM, from paragraph (j) of this 
AD. Paragraph (i) of this AD requires that the maintenance program be 
revised to incorporate Bombardier TR 2B-2187, dated June 22, 2011. 
Paragraph (i) of this AD also specifies that once the revision is done, 
the requirements of paragraph (g) of this AD are terminated (paragraph 
(g) of the AD incorporated Bombardier TR 2B-2109, dated October 13, 
2005).

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 and minor editorial 
changes. We have determined that these changes:
     Are consistent with the intent that was proposed in the 
NPRM (77 FR 32439, June 1, 2012) for correcting the unsafe condition; 
and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM (77 FR 32439, June 1, 2012).

Costs of Compliance

    We estimate that this AD will affect about 586 products of U.S. 
registry.
    The actions that are required by AD 2005-23-01, Amendment 39-14359 
(70 FR 69073, November 14, 2005), and retained in this AD take about 2 
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 $170 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-hour. Based on these figures, we estimate the cost 
of this AD to the U.S. operators to be $49,810, 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 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 32439, June 1, 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:

[[Page 73905]]

    Authority:  49 U.S.C. 106(g), 40113, 44701.

Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing airworthiness directive (AD) 
2005-23-01, Amendment 39-14359 (70 FR 69073, November 14, 2005), and 
adding the following new AD:

2012-25-02 Bombardier, Inc.: Amendment 39-17283. Docket No. FAA-
2012-0496; Directorate Identifier 2011-NM-263-AD.

(a) Effective Date

    This airworthiness directive (AD) becomes effective January 16, 
2013.

(b) Affected ADs

    This AD supersedes AD 2005-23-01, Amendment 39-14359 (70 FR 
69073, November 14, 2005).

(c) Applicability

    (1) This AD applies to Bombardier, Inc. Model CL-600-2B19 
(Regional Jet Series 100 & 440) airplanes, certificated in any 
category, serial numbers 7003 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 (l)(1) 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.faa.gov/Regulatory--and--Guidance--Library/
rgAdvisoryCircular.nsf/list/AC%2025.1529-1A/$FILE/AC%2025.1529-
1A.pdf).

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Reason

    This AD was prompted by multiple reports of cracks on the 
forward face of the rear pressure bulkhead (RPB) web. We are issuing 
this AD to detect and correct cracking in the RPB, which could 
result in reduced structural integrity and rapid decompression 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) Retained Revision to the Airworthiness Limitations (AWL) Section

    This paragraph restates the requirements of paragraph (f) of AD 
2005-23-01, Amendment 39-14359 (70 FR 69073, November 14, 2005). For 
airplanes having serial numbers 7003 through 8025 inclusive, 8030, 
and 8034: Within 30 days after November 29, 2005 (the effective date 
of AD 2005-23-01), revise the AWL section of the Instructions for 
Continued Airworthiness of the Canadair Regional Jet Maintenance 
Requirements Manual (MRM), Part 2, Appendix B, ``Airworthiness 
Limitations,'' by incorporating the information specified in AWL 53-
61-153 of the Canadair Regional Jet Temporary Revision (TR) 2B-2109, 
dated October 13, 2005, into the AWL section. Perform the applicable 
detailed and special detailed inspections for cracking of the aft 
pressure bulkhead, as specified in that TR, at the applicable 
compliance time specified in table 1 to paragraph (g) of this AD. 
Repeat the detailed inspection thereafter at intervals not to exceed 
1,085 flight cycles, and repeat the special detailed inspection 
thereafter at intervals not to exceed 4,360 flight cycles, in 
accordance with the procedures specified in AWL 53-61-153, as 
introduced by Canadair Regional Jet TR 2B-2109, dated October 13, 
2005, to Appendix B, ``Airworthiness Limitations, of Part 2 of the 
Canadair Regional Jet MRM. Accomplishing the revision required by 
paragraph (i) of this AD terminates the requirements of this 
paragraph.

    Table 1 to Paragraph (g) of This AD--Compliance Times for Initial
                               Inspections
------------------------------------------------------------------------
 As of November 29, 2005 (the effective
  date of AD 2005-23-01, Amendment 39-
    14359 (70 FR 69073, November 14,       Inspect before the airplane
   2005)): If the total flight cycles             accumulates--
   accumulated on the airplane are--
------------------------------------------------------------------------
8,000 or fewer.........................  12,000 total flight cycles.
More than 8,000 but fewer than 12,000..  15,000 total flight cycles or
                                          within 4,000 flight cycles
                                          after November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01, Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)),
                                          whichever is first.
12,000 or more but fewer than 15,000...  17,000 total flight cycles or
                                          within 3,000 flight cycles
                                          after November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01 Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)),
                                          whichever is first.
15,000 or more but fewer than 17,000...  18,500 total flight cycles or
                                          within 2,000 flight cycles
                                          after November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01 Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)),
                                          whichever is first.
17,000 or more but fewer than 18,500...  19,500 total flight cycles or
                                          within 1,500 flight cycles
                                          after November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01, Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)),
                                          whichever is first.
18,500 or more but fewer than 19,500...  20,000 total flight cycles or
                                          within 1,000 flight cycles
                                          after November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01, Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)),
                                          whichever is first.
19,500 or more.........................  500 flight cycles after
                                          November 29, 2005 (the
                                          effective date of AD 2005-23-
                                          01, Amendment 39-14359 (70 FR
                                          69073, November 14, 2005)).
------------------------------------------------------------------------

(h) Retained General Revision of the MRM

    This paragraph restates the requirements of paragraph (g) of AD 
2005-23-01, Amendment 39-14359 (70 FR 69073, November 14, 2005). For 
airplanes having serial numbers 7003 through 8025 inclusive, 8030, 
and 8034: When the information in AWL 53-61-153 of the Canadair 
Regional Jet TR 2B-2109, dated October 13, 2005, to Appendix B, 
``Airworthiness Limitations,'' of Part 2 of the Canadair Regional 
Jet MRM, is included in the general revisions of the MRM, the 
general revisions may be inserted into the AWL section of the 
Instructions for Continued Airworthiness, and this information may 
be removed from the MRM.

(i) New Requirement of This AD: Maintenance Program Revision

    Within 60 days after the effective date of this AD: Revise the 
maintenance program by incorporating the revised inspection 
requirements specified in AWL 53-61-153 of Bombardier TR 2B-2187, 
dated June 22, 2011, to Appendix B--Airworthiness Limitations, of 
Part 2 of the Bombardier CL-600-2B19 MRM. The initial compliance 
times for the task are at the applicable time specified in paragraph 
(i)(1) or (i)(2) of this AD. Doing the revision required by 
paragraph (i) of this AD terminates the requirements of paragraph 
(g) of this AD.

[[Page 73906]]

    (1) For airplanes on which the special detailed inspection 
specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22, 
2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005; 
has not been done as of the effective date of this AD: The initial 
compliance time for AWL 53-61-153 is at the applicable time 
specified in paragraph (i)(1)(i) or (i)(1)(ii) of this AD.
    (i) For airplanes that have accumulated 10,500 total flight 
cycles or less as of the effective date of this AD: Before the 
accumulation of 12,000 total flight cycles.
    (ii) For airplanes that have accumulated more than 10,500 total 
flight cycles as of the effective date of this AD: Within 1,500 
flight cycles after the effective date of this AD.
    (2) For airplanes on which the special detailed inspection 
specified in AWL 53-61-153 of Bombardier TR 2B-2187, dated June 22, 
2011; or Canadair Regional Jet TR 2B-2109, dated October 13, 2005; 
has been done as of the effective date of this AD: The initial 
compliance time for AWL 53-61-153 is within 4,360 flight cycles 
after accomplishing the most recent special detailed inspection, or 
within 1,500 flight cycles after accomplishing the most recent 
detailed inspection as specified in AWL 53-61-153 of Canadair 
Regional Jet TR 2B-2109, dated October 13, 2005, whichever occurs 
later.

(j) No Alternative Actions or Intervals

    After accomplishing the revisions required by paragraph (i) of 
this AD, no alternative actions (e.g., inspections) or intervals may 
be used other than those specified in Bombardier TR 2B-2187, dated 
June 22, 2011, to Appendix B--Airworthiness Limitations, of Part 2 
of the Bombardier CL-600-2B19 MRM, unless the actions and intervals 
are approved as an AMOC in accordance with the procedures specified 
in paragraph (l)(1) of this AD.

(k) New Action of This AD: General Revision of the MRM

    The maintenance program revision required by paragraph (i) of 
this AD may be done by inserting a copy of Bombardier TR 2B-2187, 
dated June 22, 2011, into Appendix B--Airworthiness Limitations, of 
Part 2 of the Bombardier CL-600-2B19 MRM. When this TR has been 
included in general revisions of the MRM, the general revisions may 
be inserted in the MRM, provided the relevant information in the 
general revision is identical to that in this TR.

(l) 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. AMOCs approved previously in 
accordance with AD 2005-23-01, Amendment 39-14359 (70 FR 69073, 
November 14, 2005), are approved as AMOCs with the corresponding 
requirements of paragraphs (g) and (h) of this AD only.
    (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.

(m) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (3) The following service information was approved for IBR on 
January 16, 2013.
    (i) Bombardier TR 2B-2187, dated June 22, 2011, to Appendix B--
Airworthiness Limitations, of Part 2 of the Bombardier CL-600-2B19 
MRM.
    (ii) Reserved.
    (4) The following service information was approved for IBR on 
November 29, 2005 (70 FR 69073, November 14, 2005).
    (i) Canadair Regional Jet Temporary Revision 2B-2109, dated 
October 13, 2005, to the Canadair Regional Jet Maintenance 
Requirements Manual, Part 2, Appendix B, ``Airworthiness 
Limitations.''
    (ii) Reserved.
    (5) 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.
    (6) 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.
    (7) You may view this 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/cfr/ibr-locations.html.

    Issued in Renton, Washington, on November 30, 2012.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2012-29708 Filed 12-11-12; 8:45 am]
BILLING CODE 4910-13-P
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