2008-09-25 R1: Fuel

2008-09-25 R1 Bombardier, Inc. (Formerly de Havilland, Inc.): Amendment 39-16099. Docket No. FAA-2009-1072; Directorate Identifier 2009-NM-169-AD. Effective Date (a) This airworthiness directive (AD) becomes effective December 10, 2009. Affected ADs (b) This AD revises AD 2008-09-25, Amendment 39-15506. Applicability (c) This AD applies to all Bombardier Model DHC-8-102, DHC-8- 103, DHC-8-106, DHC-8-201, DHC-8-202, DHC-8-301, DHC-8-311, and DHC- 8-315 airplanes, certificated in any category, all serial numbers. Subject (d) Air Transport Association (ATA) of America Code 28: Fuel. Reason (e) The mandatory continuing airworthiness information (MCAI) states: Bombardier Aerospace has completed a system safety review of the aircraft fuel system against fuel tank safety 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 it is necessary to introduce Critical Design Configuration Control Limitations (CDCCL), in order to preserve critical fuel tank system ignition source prevention features during configuration changes such as modifications and repairs, or during maintenance actions. Failure to preserve critical fuel tank system ignition source prevention features could result in a fuel tank explosion. Revisions have been made to Part 2 "Airworthiness Limitations List'' of the Maintenance Program Manuals of the affected aircraft models to introduce the required CDCCL. The corrective action is revising the Airworthiness Limitations section of the Instructions for Continued Airworthiness to include the CDCCL data. Restatement of AD 2008-09-25, With Revised Compliance Method Actions and Compliance (f) Unless already done, do the following actions. (1) For all airplanes: Within 60 days after June 6, 2008 (the effective date of AD 2008-09-25), revise the Airworthiness Limitations section of the Instructions for Continued Airworthiness to incorporate the CDCCL data specified in the applicable temporary revision (TR) to the applicable maintenance program manual (MPM). The TRs are listed in Table 1 of this AD. Table 1--Temporary Revisions Model de Havilland TR Maintenance Program Manual DHC-8-102, DHC-8-103, and DHC-8-106 airplanes AWL-98, dated April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 100 MPM, Product Support Manual (PSM) 1-8-7 DHC-8-201, and DHC-8-202 airplanes AWL 2-35, dated April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 200 MPM, PSM 1-82-7 DHC-8-301, DHC-8-311, and DHC-8-315 airplanes AWL 3-103, dated April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 300 MPM, PSM 1-83-7 Note 1: The revisions required by paragraph (f)(1) of this AD may be done by inserting a copy of the applicable TR into the applicable maintenance program manual. When the TR has been included in the general revision of the maintenance program, the general revision may be inserted into the maintenance program manual, provided the relevant information in the general revision is identical to that in the applicable TR, and the temporary revision may be removed. (2) After accomplishing the actions specified in paragraph (f)(1) of this AD, no alternative CDCCLs may be used unless the CDCCLs are approved as an alternative method of compliance (AMOC) in accordance with the procedures specified in paragraph (g)(1) of this AD. New Information Explanation of CDCCL Requirements Note 2: Notwithstanding any other maintenance or operational requirements, components that have been identified as airworthy or installed on the affected airplanes before the revision of the ALS, as required by paragraph (f)(1) ofthis AD, do not need to be reworked in accordance with the CDCCLs. However, once the ALS has been revised, future maintenance actions on these components must be done in accordance with the CDCCLs. FAA AD Differences Note 3: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York Aircraft Certification Office, 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: Mazdak Hobbi, Aerospace Engineer, Airframe and Mechanical Systems Branch, ANE-171, FAA, New York Aircraft Certification Office, 1600 Stewart Avenue, Suite 410, Westbury, New York 11590; telephone (516) 228-7330; 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 (h) Refer to MCAI Canadian Airworthiness Directive CF-2008-03, dated January 3, 2008, and the TRs specified in Table 1 of this AD, for related information. Material Incorporated by Reference (i) You must use the service information contained in Table 2 of this AD to do the actions required by this AD, unless the AD specifies otherwise. Table 2--Material Incorporated by Reference de Havilland Temporary Revision Dated To AWL-98 April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 100 Maintenance Program Manual, Product Support Manual 1-8-7 AWL 2-35 April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 200 Maintenance Program Manual, Product Support Manual 1-82-7 AWL 3-103 April 12, 2006 Part 2, Airworthiness Limitations List, of de Havilland Dash 8 Series 300 Maintenance Program Manual, Product Support Manual 1-83-7 (1) The Director of the Federal Register previously approved the incorporation by reference of this service information on June 6, 2008 (73 FR 24157, May 2, 2008). (2) For service information identified in this AD, contact Bombardier, Inc., 400 Cote-Vertu Road West, Dorval, Quebec H4S 1Y9, Canada; telephone 514-855-5000; fax 514-855- 7401; e-mail [email protected]; 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 or 425-227-1152. (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.