Service Bulletin No. 598 A 

V-Band Clamp P/N LW-12125-3 and LW-12093-6 on Turbocharged Engines

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Supersedes Service Bulletin No. 598

June 1, 2011 

MODELS AFFECTED

Lycoming engines, identified  in  Table  1, and  spare  clamps shipped  from  Lycoming between December 27, 2010 and May 25, 2011.

TIME OF COMPLIANCE

Before next flight, immediate inspection of engines (in Tables 1 and 2) that  have not already been operated and have proven thermal stability at high  power OR Within 10 hours of engine operation or at the next maintenance event, whichever occurs first 

This Service Bulletin identifies two potentially non­conforming  V­band clamps on specific  Lycoming  engines and spare parts shipped between December 27, 2010 and May 25, 2011.

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