Service Instruction No. 1586
Oil Filter Base Bypass Spring Replacement
Publications
SERVICE INSTRUCTION NO. 1586
DATE:
December 2, 2021
SUBJECT:
Oil Cooler Bypass Valve Assembly Replacement
MODELS AFFECTED:
Lycoming TEO-540-C1A
TIME OF COMPLIANCE:
At next scheduled oil change
Get It Exchanged
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.