AD 2010-10-04 Airworthiness Directives; Bombardier, Inc. Model DHC-8-400 Series Airplanes

Models named: DHC-8-400, -401, -402. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Bombardier, Inc. Model DHC-8-400, -401, and -402 airplanes, serial numbers 4001 through 4169 inclusive, certificated in any category.

You are responsible for having the actions required by this AD performed within the compliance times specified, unless the actions have already been done. Replacement of Blind Fasteners, Inspection for Chafing at Four Wiring Harness Tie Down Mount Locations and Corrective Action (g) Within 200 flight hours after the effective date of this AD: Replace the blind fasteners installed at the four wiring harness tie down mount locations with solid rivets; and do a detailed inspection for chafing and damage of the wires and, as applicable, of any Teflon tubing and do all applicable corrective actions; in accordance with paragraph B.(6) of the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-24-44, Revision A, dated February 2, 2010. Do all applicable corrective actions before further flight. Inspection of AC Feeder Cables Along Lower Wing Shroud and Corrective Action (h) At the applicable time in paragraph (h)(1) or (h)(2) of this AD: Do a detailed inspection of the wiring harness installation along the wing rear spar lower shroud for any chafing and damage, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Bombardier Alert Service Bulletin A84-24-44, Revision A, dated February 2, 2010. Do all applicable corrective actions before further flight. (1) For airplanes with AC feeder cables not covered with protective Teflon tubing (Modsum Number IS4Q2450001 or production Modsum 4Q109946 not incorporated): Within 600 flight hours after the effective date of this AD. (2) For airplanes with AC feeder cables covered with protective Teflon tubing (Modsum Number IS4Q2450001 or production Modsum 4Q109946 incorporated): Within 4,000 flight hours after the effective date of this AD. (i) For airplanes on which the temporary repair specified in Bombardier Repair Drawing 8/4-24-011, Issue 2, dated January 21, 2010, has been done: Within 600 flight hours after accomplishing the temporary repair or 60 flight hours after the effective date of this AD, whichever occurs later, do the permanent repair or replace the wiring, in accordance with Bombardier Repair Drawing 8/4-24-011, Issue 2, dated January 21, 2010. Actions According to Previous Issue of Service Information (j) Actions done before the effective date of this AD in accordance with Bombardier Alert Service Bulletin A84-24-44, dated January 27, 2010, are acceptable for compliance with the corresponding requirements of paragraphs (g) and (h) of this AD. (k) Actions done before the effective date of this AD in accordance with any modification summary identified in Table 1 of this AD are acceptable for compliance with the corresponding requirements of paragraph (g) of this AD. Table 1—Modification Summaries Bombardier modification summary— Revision— Dated— IS4Q5700013 A January 12, 2010. IS4Q5700013 B January 20, 2010. IS4Q5700013 C January 27, 2010. Reporting Requirement (l) Submit a report of the findings (both positive and negative) of the inspection required by paragraph (h) of this AD to Bombardier Technical Help Desk; telephone 416-375-4000; e-mail thd.qseries@aero.bombardier.com; at the applicable time specified in paragraph (l)(1) or (l)(2) of this AD. Use Figures 1 and 2 (Feedback Form) of Bombardier Alert Service Bulletin A84-24-44, Revision A, dated February 2, 2010, to submit the report. The report must include the inspection results, a description of any discrepancies found, the airplane serial number, and the number of landings and flight hours on the airplane. (1) If the inspection was done on or after the effective date of this AD: Submit the report within 14 days after the inspection. (2) If the inspection was accomplished prior to the effective date of this AD: Submit the report within 14 days after the effective date of this AD. FAA AD Differences Note 1: This AD differs from the MCAI and/or service information as follows: The MCAI does not specify a compliance time for doing a permanent repair or replacement for airplanes on which a temporary repair is done. This AD requires that the temporary repair is replaced by a permanent repair or replacement of the wiring. We have coordinated this difference with Transport Canada Civil Aviation (TCCA). Other FAA AD Provisions (m) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, ANE-170, 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: 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 (n) Refer to MCAI Canadian Airworthiness Directive CF-2010-08, dated March 16, 2010; Bombardier Alert Service Bulletin A84-24-44, Revision A, dated February 2, 2010; and Bombardier Repair Drawing 8/4-24-011, Issue 2, dated January 21, 2010; for related information. Material Incorporated by Reference (o) You must use Bombardier Alert Service Bulletin A84-24-44, Revision A, dated February 2, 2010; and Bombardier Repair Drawing 8/4-24-011, Issue 2, dated January 21, 2010; as applicable; to do the actions required by this AD, unless the AD specifies otherwise. Bombardier Repair Drawing 8/4-24-011, Issue 2, dated January 21, 2010, contains the following effective pages:   Page No. Revision level shown on page Date shown on page 1, 3 2 January 21, 2010.* 2, 4-7 1 January 18, 2010.* * Only the first page of this repair drawing contains the issue dates. (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.qseries@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 April 27, 2010. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2010-10472 Filed 5-4-10; 8:45 am] BILLING CODE 4910-13-P