Service Instruction No. 1012 L

COUNTERWEIGHTS AND ROLLERS ON ENGINE MODELS

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COUNTERWEIGHTS AND ROLLERS ON ENGINE MODELS
DATE:

April 9, 2020

SUBJECT:

Counterweights and Rollers on Engine Models

MODELS AFFECTED:

All Lycoming engines with counterweights

TIME OF COMPLIANCE:

As required

REASON FOR REVISION:

Added new engine models, IO-390-D Series to Table 5.

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