1000-Hour Engine Inspection For Io-390-D Series Engines - Lycoming IO-390-D Series Maintenance Manual

IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual

9. 1000-Hour Engine Inspection for IO-390-D Series Engines

The purpose of this inspection is to examine the exhaust valves and guides on the engine cylinders.
A. Complete the 1000-Hour Engine Inspection after every 1000 hours of operation since the
engine has been in service.
NOTICE: If valve sticking is a problem, this inspection must be done. Refer to the section
"Corrective Action for Valve Sticking" in Chapter 72-30.
If this 1000-hour inspection is completed prior to the scheduled 1000-hour
inspection it must be completed 1000 hours from the time of inspection.
B. Copy and complete the 1000-Hour Engine Inspection Checklist for IO-390-D Series Engines
as a record of engine service. Record the engine hours.
WARNING
1000-Hour Engine Inspection Checklist for IO-390-D Series Engines
Engine Model Number___________________
Engine Time:___________________________
Inspection done by:______________________________
Inspection Item
Complete the 500-Hour Engine
Inspection Checklist.
Complete the "Exhaust Valve and Guide Inspection" procedure in Chapter 72-30. Record the results
for each cylinder below.
Exhaust Valve and Guide Inspection
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
© 2020 Avco Corporation. All Rights Reserved
March 2020
BEFORE ANY ENGINE INSPECTION OR SERVICE PROCEDURE,
MAKE SURE THE IGNITION SWITCH IS SET TO OFF AND THAT ALL
POWER TO THE ENGINE IS DISCONNECTED. ENSURE ALL
OBJECTS/PERSONNEL ARE CLEAR OF THE PROPELLER'S
ROTATIONAL ARC. IF POWER IS ON, A LOOSE OR BROKEN WIRE
CAN CAUSE THE ENGINE TO START AND THE PROPELLER TO
TURN WHICH CAN LEAD TO DEATH OR SERIOUS INJURY OR A
PROPELLER STRIKE.
Comments
Refer to the section "500-
Hour Engine Inspection for
IO-390-D Series Engines"
in this chapter.
Engine Serial Number:___________________
Date Inspection Done:____________________
Results/Notes Done
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