AD 2011-22-06 Airworthiness Directives; Bombardier, Inc. Model CL-215-1A10, CL-215-6B11 (CL-215T Variant), and CL-215-6B11 (CL-415 Variant) Airplanes

Models named: CL-215-1A10. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Bombardier, Inc., airplanes, certificated in any category, identified in paragraphs (c)(1), (c)(2), and (c)(3) of this AD. (1) Model CL-215-1A10 airplanes, serial numbers 1051 through 1125 inclusive; (2) Model CL-215-6B11 (CL-215T Variant) airplanes, serial numbers 1056 through 1125 inclusive; and (3) Model CL-215-6B11 (CL-415 Variant) airplanes, serial numbers 2001 through 2990 inclusive.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Eddy Current Inspections (g) Within 50 flight hours after the effective date of this AD: Perform an in situ eddy current inspection for cracks on the forward lug of the MLG upper member, part numbers 160-714-3 (left hand) and 160-714-4 (right hand), in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). (1) If any crack is found: Before further flight, replace the forward lug of the MLG upper member with a new forward lug, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). Thereafter, repeat the in situ eddy current inspection at intervals not to exceed 165 land landings. (2) If no crack is found: Repeat the in situ eddy current inspection at intervals not to exceed 165 land landings, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). Fluorescent Penetrant Inspection (h) Within two months after the effective date of this AD: Perform a one-time fluorescent penetrant inspection for cracks on the forward lug of the MLG upper member, part numbers 160-714-3 (left hand) and 160-714-4 (right hand), in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). If any crack is found, before further flight, replace the forward lug of the MLG upper member with a new forward lug, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011 (for Model CL-215-1A10 airplanes, and Model CL-215-6B11 (CL-215T Variant) airplanes); or Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011 (for Model CL-215-6B11 (CL-415 Variant) airplanes). FAA AD Differences Note 1: This AD differs from the MCAI and/or service information as follows: If any cracking is found during any in situ eddy current inspection specified in paragraph (g) of this AD, and the forward lug of the MLG upper member is replaced, this AD requires repetitive in situ eddy current inspections, thereafter, at intervals not to exceed 165 land landings. Canadian Airworthiness Directive CF-2011-35, dated August 29, 2011, does not include this requirement. 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. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the New York ACO, send it 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, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding 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. (j) Special Flight Permits: Special flight permits, as described in Section 21.197 and Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 and 21.199), are not allowed. Related Information (k) Refer to MCAI Canadian Airworthiness Directive CF-2011-35, dated August 29 2011; Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011; Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011; Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011; and Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011; for related information. Material Incorporated by Reference (l) You must use Bombardier Alert Service Bulletin 215-A548, dated July 15, 2011; Bombardier Alert Service Bulletin 215-A4451, dated July 15, 2011; Bombardier Alert Service Bulletin 215-A547, dated July 8, 2011; and Bombardier Alert Service Bulletin 215-A4450, dated July 8, 2011; 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. Issued in Renton, Washington, on October 13, 2011. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2011-27599 Filed 10-26-11; 8:45 am] BILLING CODE 4910-13-P