Service Instruction No 1037-W
APPROVED PISTONS, RINGS, AND CYLINDERS FOR USE ON LYCOMING AIRCRAFT ENGINESS
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SERVICE INSTRUCTION NUMBER 1037 W
SUBJECT
Approved Pistons, Rings, Cylinders, and Gasket Set Application for Use on Lycoming Aircraft Engines
DATE
April 29, 2020
MODELS AFFECTED
All Lycoming opposed series aircraft engines in Table 2
TIME OF COMPLIANCE
When installing new rings, pistons, valves and cylinders
REASON FOR REVISION
Added IO-390-D series to Seal and Gasket set section and Table 2, Updated IO-360-A3B6D and IO-360-C1F part and kit numbers in Table 2, Updated low compression O-235 series.
Get It Exchanged
Use our Engine Exchange Program to order a new, rebuilt, or overhauled engine to experience more airtime and less downtime.