AD 2010-14-05 Airworthiness Directives; Bombardier, Inc. Model CL-600-1A11 (CL-600), CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604 Variants (Including CL-605 Marketing Variant)) Airplanes

This AD applies to the Bombardier, Inc. airplanes, certificated in any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD. (1) Bombardier, Inc. Model CL-600-1A11 (CL-600) airplanes, serial numbers 1004 through 1085 inclusive; (2) Bombardier, Inc. CL-600-2A12 (CL-601) airplanes, serial numbers 3001 through 3066 inclusive; and (3) Bombardier, Inc. CL-600-2B16 (CL-601-3A, CL-601-3R, and CL-604) airplanes, serial numbers 5001 through 5194 inclusive, 5301 through 5665 inclusive, and 5701 and subsequent. Note 1: Some Model CL-600-2B16 (CL-604) airplanes might be referred to by the marketing designation CL-605 in the applicable service bulletins listed in Table 1 of this AD.

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) Do the following actions as applicable. (1) Within 50 flight hours after the effective date of this AD, inspect to determine the part numbers of the system accumulators numbers 1, 2, and 3 and brake accumulators numbers 2 and 3 that are installed on the airplane. A review of airplane maintenance records is acceptable in lieu of this inspection if the part number of the accumulator can be conclusively determined from that review. If all of the installed accumulators have P/N 2770571-102, 2770571-103, 2770571-104, or 2770571-105, no further action is required by this AD. (2) At the applicable time in paragraph (g)(2)(i), (g)(2)(ii), or (g)(2)(iii) of this AD, replace the accumulator with a new, overhauled, or refurbished accumulator with the same part number, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD. Table 1—Service Bulletins Airplane model— Bombardier service bulletin— Revision— Dated— CL-600-1A11 (CL-600) 600-0742 02 May 10, 2010. CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R variant) 601-0597 02 May 10, 2010. CL-600-2B16 (CL-604 variant) 604-29-008 02 May 10, 2010. CL-600-2B16 (CL-605) 605-29-001 02 May 10, 2010. (i) For each accumulator having P/Ns 08-60163-001 (601R75138-1), 08-60163-002 (601R75138-1), 08-60164-001 (601R75138-3), and 08-60164-002 (601R75138-3), as applicable, that has accumulated more than 3,650 total flight cycles as of the effective date of this AD: Replace the accumulator within 100 flight cycles after the effective date of this AD. (ii) For each accumulator having P/N 08-60163-001 (601R75138-1), 08-60163-002 (601R75138-1), 08-60164-001 (601R75138-3), and 08-60164-002 (601R75138-3), as applicable, that has accumulated 3,650 total flight cycles or fewer as of the effective date of this AD: Replace the accumulator before the accumulation of 3,750 total flight cycles on the accumulator. (iii) For each accumulator having P/N 08-60163-001 (601R75138-1), 08-60163-002 (601R75138-1), 08-60164-001 (601R75138-3), and 08-60164-002 (601R75138-3), as applicable, for which it is not possible to determine the number of flight cycles accumulated: Replace the accumulator within 100 flight cycles after the effective date of this AD. (3) Thereafter, before the accumulation of 3,750 total flight cycles on any accumulator having P/Ns 08-60163-001 (601R75138-1), 08-60163-002 (601R75138-1), 08-60164-001 (601R75138-3), and 08-60164-002 (601R75138-3), as applicable, replace the accumulator with a new, overhauled, or refurbished accumulator having the same part number, in accordance with the Accomplishment Instructions of the applicable service bulletin listed in Table 1 of this AD. Note 2: The part numbers in parentheses in paragraphs (g)(2)(i), (g)(2)(ii), (g)(2)(iii), and (g)(3) of this AD, are equivalent specification part numbers, as specified in the applicable service bulletin listed in Table 1 of this AD. (4) Replacement of an accumulator with a new accumulator having the same part number is also acceptable for compliance with the requirements of paragraph (g)(2) of this AD, if done before the effective date of this AD in accordance with the applicable service bulletin listed in Table 2 of this AD. Table 2—Previous Service Bulletins Airplane model— Bombardier service bulletin— Revision— Dated— CL-600-1A11 (CL-600) 600-0742 Original November 10, 2008. CL-600-1A11 (CL-600) 600-0742 01 July 6, 2009. CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R variant) 601-0597 Original November 10, 2008. CL-600-2A12 (CL-601), CL-600-2B16 (CL-601-3A, CL-601-3R variant) 601-0597 01 July 6, 2009. CL-600-2B16 (CL-604 variant) 604-29-008 Original November 10, 2008. CL-600-2B16 (CL-604 variant) 604-29-008 01 July 6, 2009. CL-600-2B16 (CL-605) 605-29-001 Original November 10, 2008. CL-600-2B16 (CL-605) 605-29-001 01 July 6, 2009. FAA AD Differences Note 3: This AD differs from the MCAI and/or service information as follows: (1) The MCAI specifies that certain airplanes do not need to be inspected for the part number; however, this AD requires that inspections be done on all airplanes to determine the part number. (2) The MCAI specifies to record the number of flight cycles accumulated on each affected part. This AD does not require that operators record the number of flight cycles. Other FAA AD Provisions (h) 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 assure 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 (i) Refer to MCAI Canadian Airworthiness Directive CF-2009-39, dated October 27, 2009, and the service bulletins listed in Table 1 of this AD, for related information. Material Incorporated by Reference (j) You must use the service information contained in Table 3 of this AD, as applicable, 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. Table 3—Material Incorporated by Reference Bombardier service bulletin— Revision— Dated— 600-0742 02 May 10, 2010. 601-0597 02 May 10, 2010. 604-29-008 02 May 10, 2010. 605-29-001 02 May 10, 2010. Issued in Renton, Washington, on June 17, 2010. Robert D. Breneman, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-15845 Filed 6-30-10; 8:45 am] BILLING CODE 4910-13-P