AD 2005-04-07 Airworthiness Directives; Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) Airplanes and Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) Series Airplanes

This AD applies to all Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes and Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), and CL-600-2B16 (CL-601-3A, CL-601-3R, & CL-604) series airplanes; certificated in any category.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Revision to Airplane Flight Manual (AFM) (f) Within 5 days after the effective date of this AD, revise the applicable Bombardier AFMs, Chapter 2 Limitations—Operating Limitations section, by inserting a copy of the new cold weather operations limitation specified in the Canadair (Bombardier) temporary revisions (TRs) listed in Table 1 of this AD. Thereafter, operate the airplanes per the limitation specified in the applicable TR, except as provided by paragraph (g) of this AD. Table 1.—TRs Bombardier model TR AFM CL-600-1A11 (CL-600) series airplanes 600/21, February 4, 2005 PSP 600 (US) CL-600-1A11 (CL-600) series airplanes 600-1/16, February 4, 2005 PSP 600-1 (US) CL-600-2A12 (CL-601) series airplanes 601/13, February 4, 2005 PSP 601-1B-1 CL-6002A12 (CL-601) series airplanes 601/14, February 4, 2005 PSP 601-1A-1 CL-600-2A12 (CL-601) series airplanes 601/18, February 4, 2005 PSP 601-1B CL-600-2A12 (CL-601) series airplanes 601/26, February 4, 2005 PSP 601-1A CL-600-2B16 (CL-601-3A and CL-601-3R) series airplanes 601/24, February 4, 2005 PSP 601A-1 CL-600-2B16 (CL-601-3A and CL-601-3R) series airplanes 601/25, February 4, 2005 PSP 601A-1-1 CL-600-2B16 (CL-604) series airplanes 604/17, February 4, 2005 PSP 604-1 CL-600-2B19 (Regional Jet Series 100 & 440) RJ/149-1, February 1, 2005 CSP A-012 Note 1: When information identical to that in a TR specified in paragraph (f) 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. Alternative Methods of Compliance (AMOCs) (g) The Manager, New York Aircraft Certification Office, FAA, has the authority to approve AMOCs for this AD, if requested in accordance with the procedures found in 14 CFR 39.19. Related Information (h) Canadian airworthiness directives CF-2005-01, dated February 2, 2005, and CF-2005-03, dated February 8, 2005, also address the subject of this AD. Material Incorporated by Reference (i) You must use the Canadair (Bombardier) temporary revisions to the applicable Bombardier airplane flight manuals specified in Table 2 of this AD to perform the actions that are required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approves the incorporation by reference of this document in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. For copies of the temporary revisions, contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada. You can review copies at the Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street SW., room PL-401, Nassif Building, Washington, DC; or at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html. Table 2.—Material Incorporated by Reference Temporary revision Airplane flight manual RJ/149-1, February 1, 2005 CL-600-2B19 (Regional Jet Series 100 & 440), CSP A-012 600/21, February 4, 2005 CL-600-1A11 (CL-600), PSP 600 (US) 600-1/16, February 4, 2005 CL-600-1A11 (CL-600), PSP 600-1 (US) 601/13, February 4, 2005 CL-600-2A12 (CL-601), PSP 601-1B-1 601/14, February 4, 2005 CL-600-2A12 (CL-601), PSP 601-1A-1 601/18, February 4, 2005 CL-600-2A12 (CL-601), PSP 601-1B 601/24, February 4, 2005 CL-600-2B16 (CL-601-3A and CL-601-3R), PSP 601A-1 601/25, February 4, 2005 CL-600-2B16 (CL-601-3A and CL-601-3R), PSP 601A-1-1 601/26, February 4, 2005 CL-600-2A12 (CL-601), PSP 601-1A 604/17, February 4, 2005 CL-600-2B16 (CL-604), PSP 604-1 Issued in Renton, Washington, on February 10, 2005. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-2964 Filed 2-16-05; 8:45 am] BILLING CODE 4910-13-P

This AD was prompted by a report that even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces can cause an adverse change in the stall speeds, stall characteristics, and the protection provided by the stall protection system. The FAA is issuing this AD to prevent possible loss of control on take-off resulting from even small amounts of frost, ice, snow, or slush on the wing leading edges or forward upper wing surfaces.