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.