AD 2012-04-02

This airworthiness directive (AD) becomes effective April 4, 2012.

None.

This AD applies to all Bombardier, Inc. Model CL-600-2C10 (Regional Jet Series 700, 701, & 702) airplanes; Model CL-600-2D15 (Regional Jet Series 705) airplanes; and Model CL-600-2D24 (Regional Jet Series 900) airplanes; certificated in any category.

Air Transport Association (ATA) of America Code 27: Flight controls.

This AD was prompted by reports of aileron control stiffness. We are issuing this AD to prevent aileron control stiffness during flight, which could result in reduced controllability of the airplane.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done.

Within 30 days after the effective date of this AD: Revise the maintenance program to incorporate Task 271000-218, Discard of the Outboard Wing Aileron Pulleys, as specified in Bombardier Temporary Revision (TR) 1-41, dated October 22, 2010, to Section 2—Systems/Powerplant Program of Part 1 of the Bombardier CL-600-2C10, CL-600-2D15, CL-600-2D24, CL-600-2E25 Maintenance Requirements Manual (MRM). For this task, the initial compliance time starts at the applicable time specified in paragraphs (g)(1), (g)(2), (g)(3), or (g)(4) of this AD. Thereafter, operate the airplane according to the procedures and compliance times in Bombardier TR 1-41, dated October 22, 2010.

(1) For airplanes with 10,000 or less total flight hours as of the effective date of this AD: Prior to the outboard wing aileron pulley accumulating 12,000 total flight hours.

(2) For airplanes with more than 10,000 total flight hours but with 16,000 total flight hours or less as of the effective date of this AD: Prior to the outboard wing aileron pulley accumulating 17,300 total flight hours, or within 2,000 flight hours after the effective date of this AD, whichever is earlier.

(3) For airplanes with more than 16,000 total flight hours but with 20,000 total flight hours or less as of the effective date of this AD: Prior to the outboard wing aileron pulley accumulating 20,800 total flight hours, or within 1,300 flight hours after the effective date of this AD, whichever is earlier.

(4) For airplanes with more than 20,000 total flight hours as of the effective date of this AD: Within 800 flight hours after the effective date of this AD.

Note 1 to paragraph (g) of this AD:

The actions required by paragraph (g) of this AD may be done by inserting a copy of Bombardier TR 1-41, dated October 22, 2010, into Section 2—Systems/Powerplant Program of Part 1 of the Bombardier CL-600-2C10, CL-600-2D15, CL-600-2D24, CL-600-2E25 MRM. When this TR has been included in the general revisions of the MRM, the general revisions may be inserted in the MRM, and the TR may be removed from the MRM, provided that the relevant information in the general revision is identical to that in Bombardier TR 1-41, dated October 22, 2010.

After accomplishing the revision required by paragraph (g) of this AD, no alternative actions (e.g., inspections) or intervals may be used unless the actions or intervals are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (i)(1) of this AD.

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 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.

Refer to MCAI Transport Canada Civil Aviation Airworthiness Directive CF-2011-07, dated April 26, 2011; and Bombardier TR 1-41, dated October 22, 2010, to Section 2—Systems/Powerplant Program of Part 1 of the Bombardier CL-600-2C10, CL-600-2D15, CL-600-2D24, CL-600-2E25 MRM; for related information.

(1) You must use the following service information to do the actions required by this AD, unless the AD specifies otherwise. The Director of the Federal Register approved the incorporation by reference (IBR) of the following service information under 5 U.S.C. 552(a) and 1 CFR part 51:

(i) Bombardier Temporary Revision 1-41, dated October 22, 2010, to Section 2—Systems/Powerplant Program of Part 1 of the Bombardier CL-600-2C10, CL-600-2D15, CL-600-2D24, CL-600-2E25 Maintenance Requirements Manual, approved for IBR April 4, 2012.

(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; email 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 an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.