Return To Service Procedure - Lycoming IO-390-D Series Maintenance Manual

7. Return to Service Procedure

Before returning this engine to service;
• Make sure that you correct all problems and complete all of the necessary maintenance.
• Complete the "Operational Ground Check" in this chapter.
• Specifically monitor:
o Power output (static and idle rpm)
o Fuel and oil pressure
o Cylinder and oil temperatures
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IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
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March 2020