Service Instruction No. 1565 A
Replacement Thermostatic Oil Cooler Bypass Valves
DATE:
May 4, 2017
MODELS AFFECTED:
Lycoming engines using a thermostatic oil cooler bypass valve
TIME OF COMPLIANCE:
At overhaul or when necessary to replace the thermostatic oil cooler bypass valve
REASON FOR REVISION:
Clarify replacement valve part numbers for specific Lycoming engine models
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