Service Bulletin No. 598 A 

Supersedes Service Bulletin No. 598

June 1, 2011 


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


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.

V-Band Clamp P/N LW-12125-3 and LW-12093-6 on Turbocharged Engines
CTA Heading: 
Get It Exchanged
CTA Description: 
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.
Background Color: 
Contact Usnode/43Technical Support