2008-10-13: Alternator and vapour cycle cooling system

2008-10-13 EADS SOCATA: Amendment 39-15520; Docket No. FAA-2008- 0527; Directorate Identifier 2008-CE-027-AD. Effective Date (a) This airworthiness directive (AD) becomes effective May 29, 2008. Affected ADs (b) None. Applicability (c) This AD applies to Models TBM 700 airplanes, serial numbers 434 through 455, certificated in any category. Subject (d) Air Transport Association of America (ATA) Code 24: Electric Power. Reason (e) The mandatory continuing airworthiness information (MCAI) states: A rupture of the alternator and vapour cycle cooling system pulley drive assembly has reportedly been found. Such a failure could lead to the loss of the alternator and vapour cycle cooling systems and could also cause mechanical damage inside the powerplant compartment. To address this condition, AD 2008-0063-E had been published to require a check of the pulley drive assembly for leakage and, as an interim action, removal of the compressor drive belt from the assembly, and adoption of a new operational procedure to keep the air-conditioning system deactivated. This AD retains the requirements of AD 2008-0063-E which is superseded, introduces a mandatory terminating action which consists in replacing the original pulley drive assembly by a new one of an improved design--corresponding to the EADS SOCATA modification MOD 70-0231-21--that permits reinstallation of the compressor drive belt. The MCAI requires you to deactivate the air conditioning system, inspect the pulley drive assembly for leaks, and replace the pulley drive assembly if leaks are found. Actions and Compliance (f) Unless already done, before further flight after May 29, 2008 (the effective date of this AD), do the following actions: (1) Position to "OFF'' the air-conditioning "AIR COND'' switch. (2) Check for oil leakage in the pulley drive assembly by following EADS SOCATA Service Bulletin (SB) No. 70-156 Amendment 1, dated March 2008.(3) If any leak is found, before further flight, replace the pulley drive assembly part number (P/N) T700G215504900000 with P/N T700G215505710000 following EADS SOCATA Service Bulletin (SB) No. 70-156 Amendment 1, dated March 2008. (4) If no leak is found, before further flight, remove the compressor drive belt from the pulley drive assembly following either EADS SOCATA Service Bulletin (SB) No. 70-156, original issue; or EADS SOCATA Service Bulletin (SB) No. 70-156, Amendment 1; both dated March 2008. (5) The air-conditioning "AIR COND'' switch must be in the "OFF'' position and the compressor drive belt must remain removed until the pulley drive assembly part number (P/N) T700G215504900000 is replaced with P/N T700G215505710000 following EADS SOCATA Service Bulletin (SB) No. 70-156 Amendment 1, dated March 2008. This replacement must be done before further flight if any leak is found and may be done at any time as terminating action to this AD. FAA AD Differences Note: This AD differs from the MCAI and/or service information as follows: (1) The MCAI and the service information require replacement of the pulley drive assembly part number (P/N) T700G215504900000 with the improved design P/N T700G215505710000 and reinstallation of the compressor drive belt by no later than March 31, 2009. (2) This AD is considered an interim action because we are only mandating this replacement if a leak is found. The Administrative Procedure Act does not permit the FAA to "bootstrap'' a long-term requirement into an urgent safety of flight action where the rule becomes effective at the same time the public has the opportunity to comment. The short-term action and the long-term action are analyzed separately for justification to bypass prior public notice. (3) After issuing this AD, we may initiate further AD action (notice of proposed rulemaking followed by a final rule) to require the replacement of the pulley drive assembly part number (P/N) T700G215504900000 with the new P/N T700G215505710000, and reinstallation of the compressor drive belt as a terminating action. Appropriate credit would be given for the initial actions done under this AD. Other FAA AD Provisions (g) The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards 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: Albert Mercado, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329-4119; fax: (816) 329-4090. 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, usethese 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. Special Flight Permit (h) Under 14 CFR 39.23, we are limiting the special flight permits for this AD under the following condition: The air- conditioning "AIR-COND'' switch is set to the "OFF'' position. Related Information (i) Refer to MCAI European Aviation Safety Agency (EASA) Emergency AD No.: 2008-0067-E, dated April 3, 2008, and EADS SOCATA Service Bulletin (SB) No. 70-156, Amendment 1, dated March 2008, for related information. Material Incorporated by Reference (j) You must use EADS SOCATA Service Bulletin (SB) No. 70-156, original issue; or EADS SOCATA Service Bulletin (SB) No. 70-156, Amendment 1, both dated March 2008, 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 EADS SOCATA--Direction des Services, 65921 Tarbes Cedex 9, France; telephone: +33 (0)5 62 41 73 00; fax: +33 (0)5 62 41 7-54; or in the United States contact EADS SOCATA North America, Inc., North Perry Airport, 7501 South Airport Road., Pembroke Pines, Florida 33023; telephone: (954) 893-1400; fax: (954) 964-4141. (3) You may review copies at the FAA, Central Region, Office of the Regional Counsel, 901 Locust, Room 506, Kansas City, Missouri 64106; 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.