FR Doc 05-9186

[Federal Register: May 9, 2005 (Volume 70, Number 88)]
[Proposed Rules]
[Page 24331-24335]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr09my05-17]

[[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

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