[Federal Register Volume 70, Number 88 (Monday, May 9, 2005)]
[Proposed Rules]
[Pages 24331-24335]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-9186]



[[Page 24331]]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-21139; Directorate Identifier 2003-NM-196-AD]
RIN 2120-AA64


Airworthiness Directives; Bombardier Model CL600-1A11 (CL-600), 
Model CL-600-2A12 (CL-601), and Model CL-600-2B16 (CL-601-3A, CL-601-
3R, and CL-604) Series Airplanes

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: The FAA proposes to adopt a new airworthiness directive (AD) 
for certain Bombardier Model CL600-1A11 (CL-600), Model CL-600-2A12 
(CL-601), and Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) 
series airplanes. This proposed AD would require operators to assign 
serial numbers or part numbers to certain landing gear parts; and to 
establish the number of landings on the parts, if necessary. This 
proposed AD also would require operators to revise the Airworthiness 
Limitations section of the Instructions for Continued Airworthiness to 
reflect the new life limits of the landing gear parts. This proposed AD 
is prompted by reports that landing gear parts that have safe-life 
limits but do not have serial numbers or part numbers can be removed 
from one landing gear and re-installed on another, making tracking 
difficult. We are proposing this AD to prevent life-limited landing 
gear parts from being used beyond their safe-life limits, which could 
lead to collapse of the landing gear.

DATES: We must receive comments on this proposed AD by June 8, 2005.

ADDRESSES: Use one of the following addresses to submit comments on 
this proposed AD.
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility, U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401, 
Washington, DC 20590.
     By fax: (202) 493-2251.
     Hand Delivery: room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street SW., 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., Canadair, Aerospace Group, P.O. Box 6087, Station 
Centre-ville, Montreal, Quebec H3C 3G9, Canada.
    You can examine the contents of this AD docket on the Internet at 
http://dms.dot.gov, or in person at the Docket Management Facility, 
U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, 
on the plaza level of the Nassif Building, Washington, DC. This docket 
number is FAA-2005-21139; the directorate identifier for this docket is 
2003-NM-196-AD.

FOR FURTHER INFORMATION CONTACT: Serge Napoleon, Aerospace Engineer, 
Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft 
Certification Office, 1600 Stewart Avenue, suite 410, Westbury, New 
York 11590; telephone (516) 228-7312; fax (516) 794-5531.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any written relevant data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed under ADDRESSES. Include ``Docket No. FAA-2005-21139; 
Directorate Identifier 2003-NM-196-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of the proposed AD. We will 
consider all comments submitted by the closing date and may amend the 
proposed AD in light of those comments.
    We will post all comments we receive, without change, to http://dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this proposed AD. Using the search function of our 
docket Web site, anyone can find and read the comments in any of our 
dockets, including the name of the individual who sent the comment (or 
signed the comment on behalf of an association, business, labor union, 
etc.). You may review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78), or you 
may visit http://dms.dot.gov.

Examining the Docket

    You can examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office 
between 9:00 a.m. and 5:00 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level of the Nassif Building at the DOT 
street address stated in the ADDRESSES section. Comments will be 
available in the AD docket shortly after the DMS receives them.

Discussion

    Transport Canada Civil Aviation (TCCA), which is the airworthiness 
authority for Canada, notified us that an unsafe condition may exist on 
certain Bombardier Model CL600-1A11 (CL-600), Model CL-600-2A12 (CL-
601), and Model CL-600-2B16 (CL-601-3A, CL-601-3R, and CL604) series 
airplanes. TCCA advises that certain main landing gear (MLG) and nose 
landing gear (NLG) parts that are listed as safe-life items with 
structural life limits in the Airworthiness Limitations Section of the 
Instructions for Continued Airworthiness, could be removed from a 
landing gear and re-installed on another landing gear. These parts may 
not have part numbers or serial numbers, making tracking difficult. 
This condition, if not corrected, could result in life-limited landing 
gear parts being used beyond their safe-life limits, which could lead 
to collapse of the landing gear.

Relevant Service Information

    Bombardier has issued the service bulletins listed in the following 
table. These service bulletins describe procedures for assigning part 
numbers or serial numbers to certain MLG and NLG life-limited parts.

                                          Bombardier Service Bulletins
----------------------------------------------------------------------------------------------------------------
    Bombardier service bulletin             Revision                  Date                      Model
----------------------------------------------------------------------------------------------------------------
600-0710...........................  01....................  December 15, 2003.....  CL600-1A11 (CL-600) series
                                                                                      airplanes.
601-0546...........................  01....................  December 15, 2003.....  CL-600-2A12 (CL-601) and CL-
                                                                                      600-2B16 (CL-601-3A, and
                                                                                      CL-601-3R) series
                                                                                      airplanes.

[[Page 24332]]

 
604-32-014.........................  Original..............  May 31, 2002..........  CL-600-2B16 (CL-604) series
                                                                                      airplanes.
----------------------------------------------------------------------------------------------------------------

    Bombardier has also issued the following Canadair temporary 
revisions (TR) to the applicable Airworthiness Limitations Section for 
the Instructions for Continued Airworthiness of the applicable Canadair 
Time-Limits/Maintenance Check Manual. These TRs incorporate new life 
limits for the landing gear parts described in the Bombardier service 
bulletins.

                                          Canadair Temporary Revisions
----------------------------------------------------------------------------------------------------------------
                                        Applicable Canadair time-
          Temporary revision             limits/maintenance check      Manual                  Model
                                                  manual               section
----------------------------------------------------------------------------------------------------------------
5-116, dated April 11, 2002...........  PSP 605..................         5-10-10  CL600-1A11 (CL-600) series
                                                                                    airplanes.
5-190, dated April 11, 2002...........  PSP 601-5................         5-10-10  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
5-191, dated April 11, 2002...........  PSP 601-5................         5-10-11  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
5-192, dated April 11, 2002...........  PSP 601-5................         5-10-12  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
5-2-6, dated April 11, 2002...........  CL-604...................         5-10-10  CL-600-2B16, (CL-604) series
                                                                                    airplanes.
5-204, dated April 11, 2002...........  PSP 601A-5...............         5-10-10  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
5-205, dated April 11, 2002...........  PSP 601A-5...............         5-10-11  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
5-206, dated April 11, 2002...........  PSP 601A-5...............         5-10-12  CL-600-2A12 (CL-601) and
                                                                                    Model CL-600-2B16, (CL-601-
                                                                                    3A and CL-601-3R) series
                                                                                    airplanes.
----------------------------------------------------------------------------------------------------------------

    We have determined that accomplishment of the actions specified in 
the service information will adequately address the unsafe condition. 
TCCA mandated the service information and issued Canadian airworthiness 
directives CF-2003-18R1, dated January 17, 2005; CF-2003-20, dated July 
24, 2003; and CF-2003-21R1, dated January 21, 2005; to ensure the 
continued airworthiness of these airplanes in Canada.
    The Bombardier service bulletins refer to the following Messier-
Dowty service bulletins as additional sources of service information 
for adding part numbers or serial numbers by vibro-peening the numbers 
on MLG and NLG components that do not have them. The Messier-Dowty 
service bulletins also give instructions for ensuring that the new 
serial numbers are listed in the aircraft log as life-limited parts, 
and for determining the number of landings for parts without a part 
number or serial number on which the time since new and cycles since 
new have not been tracked.

                                         Messier-Dowty Service Bulletins
----------------------------------------------------------------------------------------------------------------
                                                                                               Corresponding
   Messier-Dowty service bulletin               Model                  Landing gear         Bombardier service
                                                                         component              bulletin(s)
----------------------------------------------------------------------------------------------------------------
M-DT SB104467009/010-32-1, dated     CL600-1A11 (CL-600), CL-600- MLG side strut          600-0710 and 601-0546.
 March 19, 2001.                      2A12 (CL-601) and CL-600-    retraction actuator
                                      2B16 (CL-601-3A and CL-601-  eye bolt.
                                      3R) series airplanes.
M-DT SB19090-32-4, dated March 19,   CL-600-2B16 (CL-604) series  MLG shock strut.......  604-32-014.
 2001.                                airplanes.
M-DT SB20020-32-5, dated July 12,    CL-600-2B16 (CL-604) series  NLG shock strut.......  604-32-014.
 2001.                                airplanes.
M-DT SB200814001-32-3, dated March   CL600-1A11 (CL-600), CL-600- NLG drag brace hinge    600-0710 and 601-0546.
 19, 2001.                            2A12 (CL-601), and CL-600-   pin.
                                      2B16 (CL-601-3A and CL-601-
                                      3R) series airplanes.
M-DT SB200922001/2-32-6, dated       CL600-1A11 (CL-600) series   MLG shock strut.......  600-0710.
 March 19, 2001.                      airplanes.
M-DT SB200924003/004-32-16, dated    CL600-1A11(CL-600) series    NLG shock strut.......  600-0710.
 July 12, 2001.                       airplanes.
M-DT SB6100-32-10, dated March 19,   CL-600-2A12 (CL-601) and CL- MLG side strut          600-0710 and 601-0546.
 2001.                                600-2B16 (CL-601-3A and CL-  retraction actuator.
                                      601-3R) series airplanes.
M-DT SB6500-32-1, dated March 19,    CL600-1A11 (CL-600), CL-600- MLG side strut          600-0710 and 601-0546.
 2001.                                2A12 (CL-601), and CL-600-   retraction actuator.
                                      2B16 (CL-601-3A and CL-601-
                                      3R) series airplanes.
M-DT SB7200-32-6, dated March 19,    CL600-1A11 (CL-600), CL-600- NLG drag brace hinge    600-0710 and 601-0546.
 2001.                                2A12 (CL-601), and CL-600-   pin.
                                      2B16 (CL-601-3A and CL-601-
                                      3R) series airplanes.

[[Page 24333]]

 
M-DT SB7300-32-16, dated July 12,    CL-600-2A12 (CL-601) and CL- NLG shock strut.......  601-0546.
 2001.                                600-2B16 (CL-601-3A and CL-
                                      601-3R) series airplanes.
----------------------------------------------------------------------------------------------------------------

FAA's Determination and Requirements of the Proposed AD

    These airplane models are manufactured in Canada and are type-
certificated for operation in the United States under the provisions of 
Sec.  21.29 of the Federal Aviation Regulations (14 CFR 21.29) and the 
applicable bilateral airworthiness agreement. Pursuant to this 
bilateral airworthiness agreement, TCCA has kept the FAA informed of 
the situation described above. We have examined TCCA's findings, 
evaluated all pertinent information, and determined that AD action is 
necessary for products of this type design that are certificated for 
operation in the United States. Therefore, we are proposing this AD, 
which would require operators to assign serial numbers or part numbers 
to certain landing gear parts; and to establish the number of landings 
on the parts, if necessary. This proposed AD also would require 
operators to revise the Airworthiness Limitations section of the 
Instructions for Continued Airworthiness to reflect the new life limits 
of the landing gear parts. The proposed AD would require you to use the 
service information described previously to perform these actions, 
except as discussed under ``Difference Between the Proposed AD and the 
Bombardier Service Bulletins.''

Difference Between the Proposed AD and the Bombardier Service Bulletins

    The Bombardier service bulletins request that operators submit 
incorporation notices to Bombardier after each new part/serial number 
and landings assigned to these parts are added. This proposed AD does 
not include this action.

Clarification of Compliance Time

    Canadian airworthiness directive CF-2003-18R1, dated January 17, 
2005, does not list specific compliance times in paragraph D for 
recording the number of landings. For those airplanes affected by 
Canadian airworthiness directive CF-2003-18R1, this proposed AD would 
require compliance at the applicable compliance time listed in 
paragraphs A and B of that airworthiness directive.

Costs of Compliance

    The following table provides the estimated costs for U.S. operators 
to assign serial numbers or part numbers to certain landing gear parts 
to comply with this proposed AD.

                                                                     Estimated Costs
--------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                               Number of U.S.-
                      Model                         Work    Average labor                 Parts                   Cost per        registered     Fleet
                                                   hours    rate per hour                                         airplane        airplanes       cost
--------------------------------------------------------------------------------------------------------------------------------------------------------
CL600-1A11 (CL-600).............................       13             $65  None..............................            $845              54    $45,630
CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A and        9              65  None..............................             585             128     74,880
 CL-601-3R).
CL-600-2B16 (CL604).............................        5              65  None..............................             325             119     38,675
--------------------------------------------------------------------------------------------------------------------------------------------------------

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 have 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 that the 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 under the criteria 
of the Regulatory Flexibility Act.
    We prepared a regulatory evaluation of the estimated costs to 
comply with this proposed AD. See the ADDRESSES section for a location 
to examine the regulatory evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, 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:

[[Page 24334]]

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 
airworthiness directive (AD):

Bombardier, Inc. (Formerly Canadair): Docket No. FAA-2005-21139; 
Directorate Identifier 2003-NM-196-AD.

Comments Due Date

    (a) The Federal Aviation Administration must receive comments on 
this AD action by June 8, 2005.

Affected ADs

    (b) None.

Applicability

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

                         Table 1.--Applicability
------------------------------------------------------------------------
                                           As identified in Bombardier
           Bombardier model--                   service bulletin--
------------------------------------------------------------------------
CL600-1A11 (CL-600) series airplanes...  600-0710, Revision 01, dated
                                          December 15, 2003.
CL-600-2A12 (CL-601) and CL-600-2B16     601-0546, Revision 01, dated
 (CL-601-3A, and CL-601-3R) series        December 15, 2003.
 airplanes.
CL-600-2B16 (CL-604) series airplanes..  604-32-014, dated May 31, 2002.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD was prompted by reports that landing gear parts that 
have safe-life limits but do not have serial numbers or part numbers 
can be removed from one landing gear and re-installed on another, 
making tracking difficult. We are issuing this AD to prevent life-
limited landing gear parts from being used beyond their safe-life 
limits, which could lead to collapse of the landing gear.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Add Serial Numbers or Part Numbers

    (f) At the applicable compliance time specified in paragraph 
(f)(1), (f)(2), or (f)(3) of this AD: Add serial numbers and part 
numbers, as applicable, to the parts identified in the service 
bulletins. Do all actions in accordance with the applicable service 
bulletin.
    (1) For parts identified in the Bombardier Service Bulletin 600-
0710, Revision 01, dated December 15, 2003; and Bombardier Service 
Bulletin 601-0546, Revision 01, dated December 15, 2003; as having a 
compliance time of ``five years for the parts listed in Part A'': 
Within 60 months after the effective date of this AD.
    (2) For parts identified in Bombardier Service Bulletin 600-
0710, Revision 01, dated December 15, 2003; and Bombardier Service 
Bulletin 601-0546, Revision 01, dated December 15, 2003; as having a 
compliance time of ``ten years for the parts listed in Part B'': 
Within 120 months after the effective date of this AD.
    (3) For parts identified in the Bombardier Service Bulletin 604-
32-014, dated May 31, 2002, as having a compliance time of ``no 
later than a calendar time of 8 years'': Within 96 months after the 
effective date of this AD.

    Note 1: The Bombardier service bulletins refer to the Messier-
Dowty service bulletins in Table 2 of this AD as additional sources 
of service information for adding part numbers or serial numbers by 
vibro-peening the numbers on MLG and NLG components that do not have 
them; and for determining the number of landings for parts without a 
part number or serial number on which the time since new (TSN) and 
cycles since new (CSN) have not been tracked.


                                    Table 2.--Messier-Dowty Service Bulletins
----------------------------------------------------------------------------------------------------------------
                                                                                               Corresponding
   Messier-Dowty service bulletin               Model                  Landing gear         Bombardier service
                                                                         component              bulletin(s)
----------------------------------------------------------------------------------------------------------------
M-DT SB104467009/010-32-1, dated     CL600-1A11 (CL-600), CL-600- MLG side strut          600-0710 and 601-0546.
 March 19, 2001.                      2A12 (CL-601) and CL-600-    retraction actuator
                                      2B16 (CL-601-3A and CL-601-  eye bolt.
                                      3R) series airplanes.
M-DT SB19090-32-4, dated March 19,   CL-600-2B16 (CL-604) series  MLG shock strut.......  604-32-014.
 2001.                                airplanes.
M-DT SB20020-32-5, dated July 12,    CL-600-2B16 (CL-604) series  NLG shock strut.......  604-32-014.
 2001.                                airplanes.
M-DT SB200814001-32-3, dated March   CL600-1A11 (CL-600), CL-600- NLG drag brace hinge    600-0710 and 601-0546.
 19, 2001.                            2A12 (CL-601) and CL-600-    pin.
                                      2B16 (CL-601-3A and CL-601-
                                      3R) series airplanes.
M-DT SB200922001/2-32-6, dated       CL600-1A11 (CL-600) series   MLG shock strut.......  600-0710.
 March 19, 2001.                      airplanes.
M-DT SB200924003/004-32-16, dated    CL600-1A11 (CL-600) series   NLG shock strut.......  600-0710.
 July 12, 2001.                       airplanes.
M-DT SB6100-32-10, dated March 19,   CL-600-2A12 (CL-601) and CL- MLG shock strut pin...  601-0546.
 2001.                                600-2B16 (CL-601-3A and CL-
                                      601-3R) series airplanes.
M-DT SB6500-32-1, dated March 19,    CL600-1A11 (CL-600), CL-600- MLG side strut          600-0710 and 601-0546.
 2001.                                2A12 retraction (CL-601)     retraction actuator.
                                      and CL-600-2B16 (CL-601-3A
                                      and CL-601-3R) series
                                      airplanes.
M-DT SB7200-32-6, dated March 19,    CL600-1A11 (CL-600), CL-600- NLG drag brace hinge    600-0710 and 601-0546.
 2001.                                2A12 (CL-601) and CL-600-    pin.
                                      2B16 (CL-601-3A and CL-601-
                                      3R) series airplanes.
M-DT SB7300-32-16, dated July 19,    CL-600-2A12 (CL-601) and CL- NLG shock strut.......  601-0546.
 2001.                                600-2B16 (CL-601-3A and CL-
                                      601-3R) series airplanes.
----------------------------------------------------------------------------------------------------------------


[[Page 24335]]

Establish the Number of Landings

    (g) At the applicable time specified in paragraph (f) of this 
AD: If a component does not have a S/N and the CSN or TSN were not 
tracked, use the formula in the applicable Messier-Dowty service 
bulletin in Table 2 of this AD to establish the number of landings 
(TSN or CSN), and record the newly calculated TSN or CSN in the 
aircraft log books.

Revise the Airworthiness Limitations Section (ALS)

    (h) Within 30 days after the effective date of this AD, revise 
the ALS of the applicable Instructions for Continued Airworthiness 
to reflect the new life limits of the landing gear parts by 
inserting copies of the Canadair temporary revisions (TR) in Table 3 
of this AD into the ALS of the applicable Canadair Time-Limits/
Maintenance Check Manual. When the contents of the TRs are included 
in the general revisions of the ALS, these TRs may be removed 
provided the relevant information in the ALS is identical to that in 
the TRs.

                                     Table 3.--Canadair Temporary Revisions
----------------------------------------------------------------------------------------------------------------
                                        Applicable Canadair time-
          Temporary revision             limits/maintenance check      Manual                  Model
                                                  manual               section
----------------------------------------------------------------------------------------------------------------
5-116, dated April 11, 2002...........  PSP 605..................         5-10-10  CL600-1A11 (CL-600) series
                                                                                    airplanes
5-190, dated April 11, 2002...........  PSP 601-5................         5-10-10  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
5-191, dated April 11, 2002...........  PSP 601-5................         5-10-11  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
5-192, dated April 11, 2002...........  PSP 601-5................         5-10-12  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
5-2-6, dated April 11, 2002...........  CL-604...................         5-10-10  CL-600-2B16 (CL-604) series
                                                                                    airplanes
5-204, dated April 11, 2002...........  PSP 601A-5...............         5-10-10  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
5-205, dated April 11, 2002...........  PSP 601A-5...............         5-10-11  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
5-206, dated April 11, 2002...........  PSP 601A-5...............         5-10-12  CL-600-2A12 (CL-601) and CL-
                                                                                    600-2B16 (CL-601-3A and CL-
                                                                                    601-3R) series airplanes
----------------------------------------------------------------------------------------------------------------

Parts Installation

    (i) As of the effective date of this AD, no person may install 
on any airplane a landing gear part, unless it has had the 
applicable part number (P/N) or serial number (S/N) added in 
accordance with paragraph (f) of this AD; and had the number of 
landings established in accordance with paragraph (g) of this AD.

No Reporting Required

    (j) Although the service bulletins identified in paragraph (f) 
of this AD request that operators submit incorporation notices to 
Bombardier after each new P/N or S/N and landings assigned to these 
parts is added, this AD does not include that action.

Actions Done in Accordance With Previous Issues of Service Bulletins

    (k) Actions done before the effective date of this AD in 
accordance with Bombardier Service Bulletin 601-0546, dated May 31, 
2002; and Bombardier Service Bulletin 600-0710, dated May 31, 2002; 
are acceptable for compliance with the corresponding action 
specified in this AD.

Alternative Methods of Compliance (AMOCs)

    (l) The Manager, New York Aircraft Certification Office, FAA, 
has the authority to approve AMOCs for this AD, if requested using 
the procedures found in 14 CFR 39.19.

Related Information

    (m) Canadian airworthiness directives CF-2003-18R1, dated 
January 17, 2005; CF-2003-20, dated July 24, 2003; and CF-2003-21R1, 
dated January 21, 2005; also address the subject of this AD.

    Issued in Renton, Washington, on April 29, 2005.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-9186 Filed 5-6-05; 8:45 am]
BILLING CODE 4910-13-P