Service Bulletin No. 398 B
Recommended Corrective Action for Use of Incorrect Fuel
November 22, 2010
All Lycoming aircraft engines
TIME OF COMPLIANCE
Preventive and Corrective Action for Engines Operated with Incorrect Fuel
This Service Bulletin gives guidance when a Lycoming engine has been operated with incorrect fuel. Engine malfunction and damage could occur because of the use of incorrect fuels.
Get It Exchanged
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.