Service Letter No. L 284

Blemish on Cylinder Barrel

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SERVICE LETTER NO. L284
Blemish on Cylinder Barrel
DATE:

March 17, 2021

TO:

All Owners and Operators of Lycoming O-235 Series engines

REASON FOR PUBLICATION:

This Service Letter is in response to reports of a blemish in the black oxide coating of P/N 16A26616 Cylinder Assemblies.

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