
[Federal Register: February 23, 2009 (Volume 74, Number 34)]
[Proposed Rules]               
[Page 8039-8043]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr23fe09-11]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2009-0044; Directorate Identifier 2008-NM-132-AD]
RIN 2120-AA64

 
Airworthiness Directives; Bombardier Model CL-600-1A11 (CL-600), 
CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) 
Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to adopt a new airworthiness directive (AD) for the 
products listed above. This proposed 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 have been several Stick Pusher Capstan Shaft failures 
causing the dormant loss or severe degradation of the stick pusher 
function. * * *

Dormant loss or severe degradation of the stick pusher function could 
result in reduced controllability of the airplane. The proposed AD 
would require actions that are intended to address the unsafe condition 
described in the MCAI.

DATES: We must receive comments on this proposed AD by March 25, 2009.

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 W12-40, 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; e-mail 
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 or 425-227-1152.

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: Bruce Valentine, Aerospace Engineer, 
Systems and Flight Test Branch, ANE-172, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New 
York 11590; telephone (516) 228-7328; 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-2009-0044; 
Directorate Identifier 2008-NM-132-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-
2008-12, dated February 8, 2008 (referred to after this as ``the 
MCAI''), to correct an unsafe condition for the specified products. The 
MCAI states:

    There have been several Stick Pusher Capstan Shaft failures 
causing the dormant loss or severe degradation of the stick pusher 
function. This directive is issued to revise the first flight of the 
day check [in the Airplane Flight Manual] of the stall protection 
system to detect a degradation of the stick pusher function. It also 
introduces a new periodic maintenance task [in the Airworthiness 
Limitations Section of the Instructions for Continuing 
Airworthiness] to check the structural integrity of the stick pusher 
capstan shaft.

Dormant loss or severe degradation of the stick pusher function could 
result in reduced controllability of the airplane. You may obtain 
further information by examining the MCAI in the AD docket.

Relevant Service Information

    Bombardier has issued the temporary revisions listed in the tables 
titled ``Temporary Revisions to the Airplane Flight Manual'' and 
``Temporary Revisions to the Airworthiness Limitations Section.'' The 
actions described in this service information are intended to correct 
the unsafe condition identified in the MCAI.

[[Page 8040]]



                                Temporary Revisions to the Airplane Flight Manual
----------------------------------------------------------------------------------------------------------------
                                     Use Canadair
      For Bombardier model--           temporary                 Dated--                To the Normal Procedures
                                      revision--                                              section of--
----------------------------------------------------------------------------------------------------------------
CL-600-1A11 (CL-600) airplanes....          600/23  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-1A11 AFM.
CL-600-1A11 (CL-600) airplanes....        600-1/18  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-1A11 AFM (Winglets).
CL-600-2A12 (CL-601) airplanes....          601/15  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12 AFM, PSP 601-1B-
                                                                                        1.
CL-600-2A12 (CL-601) airplanes....          601/16  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12 AFM, PSP 601-1A-
                                                                                        1.
CL-600-2A12 (CL-601) airplanes....          601/20  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12 AFM, PSP 601-
                                                                                        1B.
CL-600-2A12 (CL-601) airplanes....          601/28  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12 AFM.
CL-600-2B16 (CL-601-3A, and CL-601-         601/27  January 30, 2007.................  Canadair Challenger CL-
 3R) airplanes.                                                                         600-2B16 AFM, PSP 601A-
                                                                                        1.
CL-600-2B16 (CL-601-3A, and CL-601-         601/28  January 30, 2007.................  Canadair Challenger CL-
 3R) airplanes.                                                                         600-2B16 AFM, PSP 601A-1-
                                                                                        1.
CL-600-2B16 (CL-604) airplanes....          604/22  January 30, 2007.................  Canadair Challenger CL-
                                                                                        604 AFM, PSP 604-1.
----------------------------------------------------------------------------------------------------------------


                          Temporary Revisions to the Airworthiness Limitations Section
----------------------------------------------------------------------------------------------------------------
                                     Use Canadair
      For Bombardier model--           temporary                 Dated--                  To the Airworthiness
                                      revision--                                       Limitations  section of--
----------------------------------------------------------------------------------------------------------------
CL-600-1A11 (CL-600) airplanes....           5-138  June 26, 2007....................  Canadair Challenger Time
                                                                                        Limits/Maintenance
                                                                                        Checks (TLMC), PSP 605,
                                                                                        Chapter 5, Section 5-10-
                                                                                        30.
CL-600-2A12 (CL-601) airplanes....           5-226  June 26, 2007....................  Canadair Challenger TLMC,
                                                                                        PSP 601-5, Chapter 5,
                                                                                        Section 5-10-30.
CL-600-2B16 (CL-601-3A, and CL-601-          5-239  June 26, 2007....................  Canadair Challenger TLMC,
 3R) airplanes.                                                                         PSP 601A-5, Chapter 5,
                                                                                        Section 5-10-30.
CL-600-2B16 (CL-604) airplanes....          5-2-32  May 31, 2007.....................  Canadair Challenger CL-
                                                                                        604 TLMC, Chapter 5,
                                                                                        Section 5-10-40.
----------------------------------------------------------------------------------------------------------------

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.

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

Costs of Compliance

    Based on the service information, we estimate that this proposed AD 
would affect 707 products of U.S. registry. We also estimate that it 
would take 1 work-hour per product to comply with the basic 
requirements of this proposed AD. The average labor rate is $80 per 
work-hour. Based on these figures, we estimate the cost of the proposed 
AD on U.S. operators to be $56,560, or $80 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); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities

[[Page 8041]]

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. (Formerly Canadair): Docket No. FAA-2009-0044; 
Directorate Identifier 2008-NM-132-AD.

Comments Due Date

    (a) We must receive comments by March 25, 2009.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to the airplanes listed in Table 1 of this 
AD, certificated in any category.

                         Table 1--Applicability
------------------------------------------------------------------------
           Bombardier model--                     Serial Nos.--
------------------------------------------------------------------------
CL-600-1A11 (CL-600) airplanes.........  1004 through 1085 inclusive.
CL-600-2A12 (CL-601) airplanes.........  3001 through 3066 inclusive.
CL-600-2B16 (CL-601-3A, CL-601-3R)       5001 through 5194 inclusive.
 airplanes.
CL-600-2B16 (CL-604) airplanes.........  5301 through 5665 inclusive.
------------------------------------------------------------------------


    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 (g)(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 27: Flight 
Controls.

Reason

    (e) The mandatory continuing airworthiness information (MCAI) 
states:

    There have been several Stick Pusher Capstan Shaft failures 
causing the dormant loss or severe degradation of the stick pusher 
function. This directive is issued to revise the first flight of the 
day check [in the Airplane Flight Manual] of the stall protection 
system to detect a degradation of the stick pusher function. It also 
introduces a new periodic maintenance task [in the Airworthiness 
Limitations Section of the Instructions for Continuing 
Airworthiness] to check the structural integrity of the stick pusher 
capstan shaft.

Dormant loss or severe degradation of the stick pusher function 
could result in reduced controllability of the airplane.

Actions and Compliance

    (f) Unless already done, do the following actions.
    (1) Within 30 days after the effective date of this AD: Revise 
the Normal Procedures section of the applicable airplane flight 
manual (AFM) by inserting a copy of the applicable TR listed in 
Table 2 of this AD. Thereafter, operate the airplanes per the 
procedures specified in the applicable TR, except as provided by 
paragraph (g)(1) of this AD. If the operator has an AFM that is not 
listed in Table 2 of this AD, within 30 days after the effective 
date of this AD, revise the AFM using a method approved by the FAA 
or Transport Canada Civil Aviation (TCCA) (or its delegated agent).

                                     Table 2--Temporary Revisions to the AFM
----------------------------------------------------------------------------------------------------------------
                                     Use Canadair
      For Bombardier model--           temporary                 Dated--                To the Normal Procedures
                                      revision--                                              section of--
----------------------------------------------------------------------------------------------------------------
CL-600-1A11 (CL-600) airplanes....          600/23  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-1A11
                                                                                       AFM.
CL-600-1A11 (CL-600) airplanes....        600-1/18  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-1A11
                                                                                       AFM (Winglets).
CL-600-2A12 (CL-601) airplanes....          601/15  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12
                                                                                       AFM, PSP 601-1B-1.
CL-600-2A12 (CL-601) airplanes....          601/16  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12
                                                                                       AFM, PSP 601-1A-1.
CL-600-2A12 (CL-601) airplanes....          601/20  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12
                                                                                       AFM, PSP 601-1B.
CL-600-2A12 (CL-601) airplanes....          601/28  January 30, 2007.................  Canadair Challenger CL-
                                                                                        600-2A12
                                                                                       AFM.
CL-600-2B16 (CL-601-3A, and CL-601-         601/27  January 30, 2007.................  Canadair Challenger CL-
 3R) airplanes.                                                                         600-2B16
                                                                                       AFM, PSP 601A-1.
CL-600-2B16 (CL-601-3A, and CL-601-         601/28  January 30, 2007.................  Canadair Challenger CL-
 3R) airplanes.                                                                         600-2B16
                                                                                       AFM, PSP 601A-1-1.
CL-600-2B16 (CL-604) airplanes....          604/22  January 30, 2007.................  Canadair Challenger CL-
                                                                                        604
                                                                                       AFM, PSP 604-1.
----------------------------------------------------------------------------------------------------------------


[[Page 8042]]

    (2) When information identical to that in a TR specified in 
paragraph (f)(1) of this AD has been included in the general 
revisions of the applicable AFM, the general revisions may be 
inserted into the AFM, and the TR may be removed from that AFM.
    (3) Within 30 days after the effective date of this AD: Revise 
the Airworthiness Limitations section of the Instructions for 
Continued Airworthiness by incorporating the applicable task in the 
TR listed in Table 3 of this AD. For all tasks identified in the 
TRs, the initial compliance time starts from the later of the times 
specified in paragraph (f)(3)(i) and (f)(3)(ii) of this AD. 
Thereafter, except as provided by paragraph (g)(1) of this AD, no 
alternative maintenance task intervals may be used.
    (i) Within the compliance time specified in the ``Check 
Interval'' or ``Task Interval,'' as applicable, after the effective 
date of this AD.
    (ii) Within the compliance time specified in the ``Check 
Interval'' or ``Task Interval,'' as applicable, after the date of 
issuance of the original Canadian airworthiness certificate or the 
date of issuance of the original Canadian export certificate of 
airworthiness.

                      Table 3--Temporary Revisions to the Airworthiness Limitations Section
----------------------------------------------------------------------------------------------------------------
                                     Use Canadair
      For Bombardier model--           temporary                 Dated--                  To the Airworthiness
                                      revision--                                       Limitations  section of--
----------------------------------------------------------------------------------------------------------------
CL-600-1A11 (CL-600) airplanes....           5-138  June 26, 2007....................  Canadair Challenger Time
                                                                                        Limits/Maintenance
                                                                                        Checks (TLMC), PSP 605,
                                                                                        Chapter 5, Section 5-10-
                                                                                        30.
CL-600-2A12 (CL-601) airplanes....           5-226  June 26, 2007....................  Canadair Challenger TLMC,
                                                                                        PSP 601-5, Chapter 5,
                                                                                        Section 5-10-30.
CL-600-2B16 (CL-601-3A, and CL-601-          5-239  June 26, 2007....................  Canadair Challenger TLMC,
 3R) airplanes.                                                                         PSP 601A-5, Chapter 5,
                                                                                        Section 5-10-30.
CL-600-2B16 (CL-604) airplanes....          5-2-32  May 31, 2007.....................  Canadair Challenger CL-
                                                                                        604 TLMC, Chapter 5,
                                                                                        Section 5-10-40.
----------------------------------------------------------------------------------------------------------------

    (4) When the information in applicable TR listed in Table 3 of 
this AD has been included in the general revisions of the applicable 
chapter of the Airworthiness Limitations section, the TR may be 
removed from the Airworthiness Limitations section of the 
Instruction for Continued Airworthiness.

FAA AD Differences

    Note 2: This AD differs from the MCAI and/or service information 
as follows: No differences.

Other FAA AD Provisions

    (g) The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, New 
York Aircraft Certification Office (ACO), FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. Send information to ATTN: Bruce Valentine, 
Aerospace Engineer, Systems and Flight Test Branch, ANE-172, FAA, 
New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 
410, Westbury, New York 11590; telephone (516) 228-7328; fax (516) 
794-5531. Before using any approved AMOC on any airplane to which 
the AMOC applies, notify your appropriate principal inspector (PI) 
in the FAA Flight Standards District Office (FSDO), or lacking a PI, 
your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, under the provisions of the Paperwork Reduction Act, the 
Office of Management and Budget (OMB) has approved the information 
collection requirements and has assigned OMB Control Number 2120-
0056.
    (4) Special Flight Permits: Special flight permits, as described 
in Section 21.197 and Section 21.199 of the Federal Aviation 
Regulations (14 CFR 21.197 and 21.199), are not allowed.

Related Information

    (h) Refer to MCAI Canadian Airworthiness Directive CF-2008-12, 
dated February 8, 2008, and the service information listed in Table 
4 of this AD, for related information.

                                        Table 4--All Service Information
----------------------------------------------------------------------------------------------------------------
              Canadair TR--                         Dated--                             To the--
----------------------------------------------------------------------------------------------------------------
5-138...................................  June 26, 2007..............  Canadair Challenger TLMC, PSP 605,
                                                                        Chapter 5, Section 5-10-30.
600/23..................................  January 30, 2007...........  Canadair Challenger CL-600-1A11 AFM.
600-1/18................................  January 30, 2007...........  Canadair Challenger CL-600-1A11 AFM
                                                                        (Winglets).
5-226...................................  June 26, 2007..............  Canadair Challenger TLMC, PSP 601-5,
                                                                        Chapter 5, Section 5-10-30.
601/15..................................  January 30, 2007...........  Canadair Challenger CL-600-2A12 AFM, PSP
                                                                        601-1B-1.
601/16..................................  January 30, 2007...........  Canadair Challenger CL-600-2A12 AFM, PSP
                                                                        601-1A-1.
601/20..................................  January 30, 2007...........  Canadair Challenger CL-600-2A12 AFM, PSP
                                                                        601-1B.
601/28..................................  January 30, 2007...........  Canadair Challenger CL-600-2A12 AFM.
5-239...................................  June 26, 2007..............  Canadair Challenger TLMC, PSP 601A-5,
                                                                        Chapter 5, Section 5-10-30.
601/27..................................  January 30, 2007...........  Canadair Challenger CL-600-2B16 AFM, PSP
                                                                        601A-1.
601/28..................................  January 30, 2007...........  Canadair Challenger CL-600-2B16 AFM, PSP
                                                                        601A-1-1.
5-2-32..................................  May 31, 2007...............  Canadair Challenger CL-604 TLMC, Chapter
                                                                        5, Section 5-10-40.
604/22..................................  January 30, 2007...........  Canadair Challenger CL-604 AFM, PSP 604-
                                                                        1.
----------------------------------------------------------------------------------------------------------------



[[Page 8043]]

    Issued in Renton, Washington, on January 15, 2009.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. E9-3778 Filed 2-20-09; 8:45 am]

BILLING CODE 4910-13-P
