Airworthiness Directive · Amendment 39-15520 · Electric power
EADS SOCATA Model TBM 700 Airplanes
Superseded. A later AD replaced this one: AD 2008-17-09. Comply with the one in force.
This AD applies to Models TBM 700 airplanes, serial numbers 434 through 455, certificated in any category.
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:
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.
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.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
