Service Letter No. 248
O-235 Crankcase Design Upgrade
January 14, 2011
To all Owners and Operators of Lycoming O-235 Aircraft Engines
This Service Letter introduces the new upgraded O-235 crankcase and associated replacement part numbers available as an option to replace the existing O-235 crankcases.
Get It Exchanged
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.