Lycoming IO-390-D Series Maintenance Manual page 40

Visual Inspection Checklist for IO-390-D Series Engines (Cont.)
Item
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.
05-20
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IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
Comments
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Findings/
Corrective Action
March 2020
Done