AD 2005-24-12 Airworthiness Directives; Bombardier Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) Airplanes

Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes, serial numbers 10003 through 10116 inclusive, certificated in any category.

Required as indicated, unless accomplished previously. To prevent asymmetric reverse thrust and consequent loss of control of the airplane during reverse thrust operation, accomplish the following: Inspection (a) For airplanes with serial numbers 10005 through 10040 inclusive: Within 72 flight hours or 30 days from the effective date of the AD, whichever occurs first, perform a general visual inspection of the thrust reverser cascades for correct installation, per the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-78-001, Revision A, dated April 23, 2002. Note 1: For the purposes of this AD, a general visual inspection is defined as: “A visual examination of an interior or exterior area, installation, or assembly to detect obvious damage, failure, or irregularity. This level of inspection is made from within touching distance unless otherwise specified. A mirror may be necessary to enhance visual access to all exposed surfaces in the inspection area. This level of inspection is made under normally available lighting conditions such as daylight, hangar lighting, flashlight, or droplight and may require removal or opening of access panels or doors. Stands, ladders, or platforms may be required to gain proximity to the area being checked.” Repetitive Inspections for Certain Airplanes (b) For airplanes with serial numbers 10003 through 10116 inclusive: Each time the thrust reverser cascade is removed and reinstalled, perform the action specified in paragraph (a) of this AD. Corrective Action (c) If any thrust reverser cascade is found to be incorrectly installed during any inspection required by paragraph (a) or (b) of this AD, before further flight, remove and reinstall the cascade in the correct location, per the Accomplishment Instructions of Bombardier Alert Service Bulletin A670BA-78-001, Revision A, dated April 23, 2002. Terminating Action (d) Within 6,000 flight hours from the effective date of the AD, rework the thrust reverser cascades by accomplishing all the actions in the Accomplishment Instructions of Bombardier Service Bulletin 670BA-78-003, dated January 22, 2004. Accomplishment of the rework terminates the requirements of paragraphs (a) and (b) of this AD. Note 2: Bombardier Service Bulletin 670BA-78-003, references GE Aircraft Engines Service Bulletin 670GE-78-008, dated December 17, 2003, as an additional source of service information for the accomplishment of the rework. Parts Installation (e) Except as provided by paragraphs (b) and (c) of this AD, within 90 days after the effective date of this AD, no person may install on any airplane a thrust reverser cascade with powerplant system, serial numbers PS0003 through PS0116 inclusive, left- and right-hand, unless it has been reworked per Bombardier Service Bulletin 670BA-78-003, dated January 22, 2004. Previous Actions (f) Inspections accomplished before the effective date of this AD per Bombardier Alert Service Bulletin A670BA-78-001, dated April 19, 2002, are considered acceptable for compliance with paragraphs (a) and (b) of this AD. Alternative Methods of Compliance (AMOCs) (g)(1) In accordance with 14 CFR 39.19, the Manager, New York Aircraft Certification Office, FAA, is authorized to approve AMOCs for this AD. (2) Before using any AMOC approved in accordance with § 39.19 on any airplane to which the AMOC applies, notify the appropriate principal inspector in the FAA Flight Standards Certificate Holding District Office. Incorporation by Reference (h) Unless otherwise specified in this AD, the actions must be done in accordance with Bombardier Alert Service Bulletin A670BA-78-001, Revision A, dated April 23, 2002; and Bombardier Service Bulletin 670BA-78-003, dated January 22, 2004; as applicable. This incorporation by reference was approved by the Director of the Federal Register in accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get copies of this service information, contact Bombardier, Inc., Canadair, Aerospace Group, P.O. Box 6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada. To inspect copies of this service information, go to the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or to the FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, suite 410, Westbury, New York; or to the National Archives and Records Administration (NARA). For information on the availability of this material at the NARA, call (202) 741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html . Note 3: The subject of this AD is addressed in Canadian airworthiness directive CF-2002-30R1, dated June 22, 2004. Effective Date (i) This amendment becomes effective on January 9, 2006. Issued in Renton, Washington, on November 18, 2005. Kalene C. Yanamura, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 05-23511 Filed 12-2-05; 8:45 am] BILLING CODE 4910-13-P