AD 2007-12-20 Airworthiness Directives; Aerospatiale Model ATR42 and ATR72 Airplanes

Models named: ATR42-200, -300, -320, -500, ATR72-101, -102, -201, -202, -211, -212. Read the applicability below — it usually turns on serial or part numbers too.

This AD applies to Model ATR42-200, -300, -320, and -500 airplanes; all serial numbers up to manufacturer serial number (MSN) 643 inclusive; and Model ATR72-101, -102, -201, -202, -211, -212, and -212A airplanes, all serial numbers up to MSN 728 inclusive, except MSN 723 and 725; certificated in any category. Reason (d) The mandatory continuing airworthiness information (MCAI) states that recently an ATR 42 suffered electrical arcing, causing the loss of some instruments and loss of one hydraulic circuit pressure ( i.e. , loss of pressure of one hydraulic circuit) due to chafing between a bonding cable and electrical wires in the 120 VU (volt unit) electrical harness. The investigation showed that a tubular support had been deformed and therefore impaired the spacing among electrical harness, supports, and cables; the harness was not correctly attached; the size of the harness was increased by addition of cables (for Service Bulletins (SB) or customer modifications embodiments); and the bonding cable was not correctly installed. The MCAI mandates an inspection of the ATR 42 and ATR 72 fleet for correct installation of the bonding cable and restoring correct installation of the bonding cable if necessary.

Unless already done, do the following actions. Within 3 months after the effective date of this AD: Inspect the harness installation in the 120 VU electrical harness and, as applicable, restore correct installation of the bonding cable, in accordance with the instructions given by Avions de Transport Regional Service Bulletins ATR42-92-0012 (for Model ATR42 airplanes) and ATR72-92-1013 (for Model ATR72 airplanes), both dated July 4, 2006; or Revision 01, both dated December 7, 2006; as applicable. FAA AD Differences Note: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (f) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, 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: Tom Rodriguez, Aerospace Engineer, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 227-1137; fax (425) 227-1149. 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. Related Information (g) Refer to MCAI European Aviation Safety Agency Airworthiness Directive 2006-0283, dated September 14, 2006; and the Avions de Transport Regional Service Bulletins specified in Table 1 of this AD for related information. Table 1.—Related Service Information Avions de transport regional service bulletin Revision level Date ATR42-92-0012 Original July 4, 2006. ATR42-92-0012 01 December 7, 2006. ATR72-92-1013 Original July 4, 2006. ATR72-92-1013 01 December 7, 2006 Material Incorporated by Reference (h) You must use the applicable Avions de Transport Regional Service Bulletins specified in Table 2 of this AD 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 Aerospatiale, 316 Route de Bayonne, 31060 Toulouse, Cedex 03, France. (3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Ave., 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 . Table 2.—Material Incorporated by Reference Avions de transport regional service bulletin Revision level Date ATR42-92-0012 Original July 4, 2006. ATR42-92-0012 01 December 7, 2006. ATR72-92-1013 Original July 4, 2006. ATR72-92-1013 01 December 7, 2006 Issued in Renton, Washington, on June 1, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-11202 Filed 6-13-07; 8:45 am] BILLING CODE 4910-13-P

Unless already done, do the following actions. Within 3 months after the effective date of this AD: Inspect the harness installation in the 120 VU electrical harness and, as applicable, restore correct installation of the bonding cable, in accordance with the instructions given by Avions de Transport Regional Service Bulletins ATR42-92-0012 (for Model ATR42 airplanes) and ATR72-92-1013 (for Model ATR72 airplanes), both dated July 4, 2006; or Revision 01, both dated December 7, 2006; as applicable. FAA AD Differences Note: This AD differs from the MCAI and/or service information as follows: No differences. Other FAA AD Provisions (f) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, International Branch, ANM-116, 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: Tom Rodriguez, Aerospace Engineer, 1601 Lind Avenue, SW., Renton, Washington 98057-3356; telephone (425) 227-1137; fax (425) 227-1149. 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. Related Information (g) Refer to MCAI European Aviation Safety Agency Airworthiness Directive 2006-0283, dated September 14, 2006; and the Avions de Transport Regional Service Bulletins specified in Table 1 of this AD for related information. Table 1.—Related Service Information Avions de transport regional service bulletin Revision level Date ATR42-92-0012 Original July 4, 2006. ATR42-92-0012 01 December 7, 2006. ATR72-92-1013 Original July 4, 2006. ATR72-92-1013 01 December 7, 2006 Material Incorporated by Reference (h) You must use the applicable Avions de Transport Regional Service Bulletins specified in Table 2 of this AD 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 Aerospatiale, 316 Route de Bayonne, 31060 Toulouse, Cedex 03, France. (3) You may review copies at the FAA, Transport Airplane Directorate, 1601 Lind Ave., 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 . Table 2.—Material Incorporated by Reference Avions de transport regional service bulletin Revision level Date ATR42-92-0012 Original July 4, 2006. ATR42-92-0012 01 December 7, 2006. ATR72-92-1013 Original July 4, 2006. ATR72-92-1013 01 December 7, 2006 Issued in Renton, Washington, on June 1, 2007. Ali Bahrami, Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. E7-11202 Filed 6-13-07; 8:45 am] BILLING CODE 4910-13-P