AD 2008-06-02

(a) This airworthiness directive (AD) becomes effective April 16, 2008.

(b) None.

(c) This AD applies to all Bombardier Model CL-600-2B19 (Regional Jet Series 100 & 440) airplanes, certificated in any category, all serial numbers.

Note 1:

This AD requires revisions to certain operator maintenance documents to include new inspections. Compliance with these inspections is required by 14 CFR 91.403(c). For airplanes that have been previously modified, altered, or repaired in the areas addressed by these inspections, the operator may not be able to accomplish the inspections described in the revisions. In this situation, to comply with 14 CFR 91.403(c), the operator must request approval for an alternative method of compliance according to paragraph (g)(1) of this AD. The request should include a description of changes to the required inspections that will ensure the continued operational safety of the airplane.

(d) Air Transport Association (ATA) of America Code 28: Fuel.

(e) The mandatory continuing airworthiness information (MCAI) states:

Bombardier Aerospace has completed a system safety review of the aircraft fuel system against fuel tank standards introduced in Chapter 525 of the Airworthiness Manual through Notice of Proposed Amendment (NPA) 2002-043. The identified non-compliances were then assessed using Transport Canada Policy Letter No. 525-001, to determine if mandatory corrective action is required.

The assessment showed that supplemental maintenance tasks [for certain bonding jumpers, wiring harnesses, and hydraulic systems, among other items] are required to prevent potential ignition sources inside the fuel system, which could result in a fuel tank explosion. Revision has been made to Canadair Regional Jet Model CL-600-2B19 Maintenance Requirements Manual, CSP A-053, Part 2, Appendix D, “Fuel System Limitations” to introduce the required maintenance tasks.

The corrective action is revising the Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank systems.

(f) Unless already done, do the following actions.

(1) Within 60 days after the effective date of this AD, or on or before December 16, 2008, whichever occurs first, revise the Airworthiness Limitations Section (ALS) of the Instructions for Continued Airworthiness to incorporate the inspection and maintenance requirements, as applicable, in Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007 (“the MRM”), task numbers 28-11-00-601, 28-11-00-602, 28-11-00-603, 28-11-00-604, 29-33-01-601, and 29-33-01-602. For those task numbers, the initial compliance times start from the later of the times specified in paragraphs (f)(1)(i) and (f)(1)(ii) of this AD, and the repetitive inspections must be accomplished thereafter at the interval specified in the MRM, except as provided by paragraphs (f)(2), (f)(3), (f)(4), (f)(5) and (g)(1) of this AD. Accomplishing the revision in accordance with a later revision of the MRM is an acceptable method of compliance if the revision is approved by the Manager, New York Aircraft Certification Office (ACO), FAA, or Transport Canada Civil Aviation (TCCA) (or its delegated agent).

(i) The effective date of this AD.

(ii) The date of issuance of the original Canadian standard airworthiness certificate or the date of issuance of the original Canadian export certificate of airworthiness.

(2) For airplanes having more than 15,000 flight hours as of the effective date of this AD, the initial compliance time for Tasks 28-11-00-601, 28-11-00-602, 28-11-00-603, and 28-11-00-604 is within 5,000 flight hours after the effective date of this AD. Thereafter, these tasks must be accomplished within the repetitive interval specified in Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007.

(3) For Task 29-33-01-601, the initial compliance time is within 5,000 flight hours after the effective date of this AD. Thereafter, task 29-33-01-601 must be accomplished within the repetitive interval specified in Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007.

(4) For airplanes having more than 27,500 flight hours as of the effective date of this AD, the initial compliance time for Task 29-33-01-602 is within 2,500 flight hours after the effective date of this AD. Thereafter, this task must be accomplished within the repetitive interval specified in Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007.

(5) After accomplishing the actions specified in paragraphs (f)(1), (f)(2), (f)(3), and (f)(4) of this AD, no alternative inspections or inspection intervals may be used unless the inspection or interval is part of a later revision of Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007, that is approved by the Manager, New York ACO, FAA, or TCCA (or its delegated agent); or the limit or interval is approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (g)(1) of this AD.

Note 2:

This AD differs from the MCAI and/or service information as follows: No differences.

(g) The following provisions also apply to this AD:

(1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office (ACO), 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: Rocco Viselli, Aerospace Engineer, Airframe and Propulsion Branch, ANE-171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228-7331; fax (516) 794-5531. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO.

(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, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056.

(h) Refer to MCAI Canadian Airworthiness Directive CF-2007-29, dated November 22, 2007, and Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP A-053, Revision 7, dated May 10, 2007.

(i) You must use Appendix D, “Fuel System Limitations,” of Part 2, “Airworthiness Requirements,” of Bombardier CL-600-2B19 Maintenance Requirements Manual CSP-053, Revision 7, dated May 10, 2007, 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., Canadair, Aerospace Group, P.O. Box 6087, Station Centre-ville, Montreal, Quebec H3C 3G9, Canada.

(3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Avenue, SW., Renton, Washington; or 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/cfr/ibr-locations.html.