[Federal Register: April 7, 2005 (Volume 70, Number 66)]
[Proposed Rules]
[Page 17620-17621]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr07ap05-19]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2004-19563; Directorate Identifier 2003-NM-10-AD]
RIN 2120-AA64
Airworthiness Directives; Bombardier Model CL-600-2B16 (CL-604)
Series Airplanes
AGENCY: Federal Aviation Administration (FAA), Department of
Transportation (DOT).
ACTION: Proposed rule; withdrawal.
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SUMMARY: The FAA withdraws a notice of proposed rulemaking (NPRM) that
proposed a new airworthiness directive (AD) for certain Bombardier
Model CL-600-2B16 (CL-604) series airplanes. The proposed AD would have
required replacing the side-brace fitting shafts of the main landing
gear (MLG) with new, improved side-brace fitting shafts; inspecting for
corrosion of the MLG side-brace fitting shafts; and replacing the nut,
washer, and cotter pin of the MLG side-brace fitting shafts with new
parts; as applicable. Since the proposed AD was issued, we have
received new data that the actions that would have been required by the
proposed AD have already been accomplished on all of the affected
airplanes. Accordingly, the proposed AD is withdrawn.
[[Page 17621]]
ADDRESSES: 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-2004-19563; the directorate identifier for
this docket is 2003-NM-10-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:
Discussion
We proposed to amend part 39 of the Federal Aviation Regulations
(14 CFR part 39) with a notice of proposed rulemaking (NPRM) for a new
AD for certain Bombardier Model CL-600-2B16 (CL-604) series airplanes.
That NPRM was published in the Federal Register on November 9, 2004 (69
FR 64869). The NPRM would have required replacing the side-brace
fitting shafts of the main landing gear (MLG) with new, improved side-
brace fitting shafts; inspecting for corrosion of the MLG side-brace
fitting shafts; and replacing the nut, washer, and cotter pin of the
MLG side-brace fitting shafts with new parts; as applicable. The NPRM
was prompted by the discovery of fractures of the MLG side-brace
fitting shafts caused by corrosion on the forward side of the side-
brace fitting shafts. The proposed actions were intended to prevent
fracture of the MLG side-brace fitting shafts, which could result in
collapse of the MLG.
Actions Since NPRM Was Issued
Since we issued the NPRM, the airplane manufacturer has informed us
that all airplanes identified in the applicability section of the NPRM
have already accomplished the actions specified in Bombardier Alert
Service Bulletin A604-32-018, Revision 01, dated February 22, 2002,
which would have been required by the proposed AD. Transport Canada
Civil Aviation (TCCA), which is the airworthiness authority for Canada,
has also confirmed that the proposed requirements have already been
accomplished on all affected airplanes.
FAA's Conclusions
Upon further consideration, we have determined that it is
unnecessary to issue the proposed AD. Accordingly, the NPRM is
withdrawn.
Withdrawal of the NPRM does not preclude the FAA from issuing
another related action or commit the FAA to any course of action in the
future.
Regulatory Impact
Since this action only withdraws an NPRM, it is neither a proposed
nor a final rule and therefore is not covered under Executive Order
12866, the Regulatory Flexibility Act, or DOT Regulatory Policies and
Procedures (44 FR 11034, February 26, 1979).
List of Subjects in 14 CFR Part 39
Air transportation, Aircraft, Aviation safety, Safety.
The Withdrawal
Accordingly, we withdraw the NPRM, Docket No. FAA-2004-19563,
Directorate Identifier 2003-NM-10-AD, which was published in the
Federal Register on November 9, 2004 (69 FR 64869).
Issued in Renton, Washington, on March 31, 2005.
Kalene C. Yanamura,
Acting Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 05-6916 Filed 4-6-05; 8:45 am]
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