IO-390-D Series Engine Maintenance Manual
05-20
© 2020 Avco Corporation. All Rights Reserved
Page 14
March 2020
IO-390-D Series Engine Maintenance Manual
Visual Inspection Checklist for IO-390-D Series Engines (Cont.)
Item
Comments
Findings/
Corrective Action
Done
Engine Controls
Examine all engine controls for
general condition, full travel, and
freedom of operation in accordance
with the aircraft manufacturer’s
instructions
Follow-Up Action:
(4)
Make sure items in the engine compartment are securely in place and not loose. Remove
any foreign object debris (FOD) from the engine compartment.
(5)
Start the engine and run-up per instructions in the
IO-390-D Series Engine Installation
and Operation Manual.
(6)
Operate the engine for 3 minutes on the ground (per the
IO-390-D Series Engine
Installation and Operation Manual
). Complete a leak check while the engine is in
operation.
(7)
Shut down the engine.
(8)
Copy and complete the Operational Leak Check Sheet for IO-390-D Series engines on
the next page.
(9)
Identify and correct all leaks. Record all leaks and corrective action on the Operational
Leak Check Sheet for IO-390-D Series Engines.
(10)
Re-install the engine cowling per the aircraft manufacturer’s instructions.
