AD 2010-18-11 Airworthiness Directives; Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); Model CL-600-2D15 (Regional Jet Series 705); and Model CL-600-2D24 (Regional Jet Series 900) Airplanes

This AD applies to Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702); Model CL-600-2D15 (Regional Jet Series 705); and Model CL-600-2D24 (Regional Jet Series 900) airplanes; certificated in any category; having horizontal stabilizer trim actuators (HSTAs) with part number (P/N) 8489-7 or 8489-7R.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Actions (g) Within 500 flight cycles after the effective date of this AD: Inspect HSTAs having P/Ns 8489-7 and 8489-7R to determine if the serial numbers (S/Ns) identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010, are installed. A review of airplane maintenance records is acceptable in lieu of this inspection if the serial number of the HSTA can be conclusively determined from that review. (1) For any HSTA with a serial number that is not identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010: No further action is required by paragraph (g) of this AD. (2) For any HSTA with a serial number that is identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010: Replace the HSTA with a serviceable HSTA, in accordance with the Accomplishment Instructions of Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010, at the applicable time specified by paragraph (g)(2)(i), (g)(2)(ii), (g)(2)(iii), or (g)(2)(iv) of this AD. Note 1: Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010, references Sagem SA Service Bulletin 8489-27-006, dated December 8, 2009, as an additional source of guidance for modifying the HSTA. Sagem SA Service Bulletin 8489-27-006, dated December 8, 2009, references Ratier-Figeac Service Bulletin RF-DSC-075-07, Version 03, dated November 10, 2009, as an additional source of guidance for modifying the HSTA. The suffix “A” after the serial number indicates serviceable HSTAs that have been modified. (i) For any HSTA that has accumulated less than or equal to 8,000 flight cycles as of the effective date of this AD: Before the HSTA accumulates 10,000 flight cycles. (ii) For any HSTA that has accumulated more than 8,000 flight cycles but less than or equal to 10,000 flight cycles as of the effective date of this AD: Before the HSTA accumulates an additional 2,000 flight cycles, but no later than 11,000 flight cycles on the HSTA. (iii) For any HSTA that has accumulated more than 10,000 flight cycles but less than or equal to 12,000 flight cycles as of the effective date of this AD: Before the HSTA accumulates an additional 1,000 flight cycles, but no later than 12,500 flight cycles on the HSTA. (iv) For any HSTAs that has accumulated more than 12,000 flight cycles as of the effective date of this AD: Before the HSTA accumulates an additional 500 flight cycles. (h) As of the effective date of this AD, no person may install an HSTA, having P/N 8489-7 or 8489-7R, with a serial number identified in paragraph 1.A., “Effectivity,” of Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010, on any airplane. FAA AD Differences Note 2: This AD differs from the MCAI and/or service information as follows: Canadian Airworthiness Directive CF-2010-20, dated July 19, 2010, refers to an incorrect date of April 28, 2010, for Bombardier Service Bulletin 670BA-27-057. The correct date for Bombardier Service Bulletin 670BA-27-057 is June 14, 2010. Other FAA AD Provisions (i) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office (ACO), ANE-170, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to Attn: Program Manager, Continuing Operational Safety, FAA, New York ACO, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone 516-228-7300; fax 516-794-5531. Before using any approved AMOC on any airplane to which the AMOC applies, notify your principal maintenance inspector (PMI) or principal avionics inspector (PAI), as appropriate, or lacking a principal inspector, your local Flight Standards District Office. The AMOC approval letter must specifically reference this AD. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to ensure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act (44 U.S.C. 3501 et seq. ), the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056. Related Information (j) Refer to MCAI Canadian Airworthiness Directive CF-2010-20, dated July 19, 2010; and Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010; for related information. Material Incorporated by Reference (k) You must use Bombardier Service Bulletin 670BA-27-057, dated June 14, 2010, to do the actions required by this AD, unless the AD specifies otherwise. (1) The Director of the Federal Register approved the incorporation by reference of this service information under 5 U.S.C. 552(a) and 1 CFR part 51. (2) For service information identified in this AD, contact Bombardier, Inc., 400 Côte-Vertu Road West, Dorval, Québec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855-7401; e-mail thd.crj@aero.bombardier.com; Internet http://www.bombardier.com. (3) You may review copies of the service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington. For information on the availability of this material at the FAA, call 425-227-1221. (4) You may also review copies of the service information that is incorporated by reference 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. . Issued in Renton, Washington, on August 20, 2010. Jeffrey E. Duven, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-21563 Filed 9-1-10; 8:45 am] BILLING CODE 4910-13-P