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.

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