25-Hour Engine Inspection For Teo-540-C1A Engines - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
TEO-540-C1A Engine Maintenance Manual

4. 25-Hour Engine Inspection for TEO-540-C1A Engines

A. The purpose of this inspection is to measure the oil level and oil consumption, replace the oil
filter, complete an initial oil change, identify and correct the cause of any oil leak.
B. Complete this 25-Hour Engine Inspection at the following times:
• After 25 hours of engine operation or the first 4 months since the engine was placed into
service (whichever comes first) per Chapter 12-10
• 25 hours after one or more new engine cylinders and/or piston rings have been installed
• If the rate of oil consumption has not stabilized
NOTICE: Refer to the "Oil Servicing Schedule" in Chapter 12-10.
C. Copy and complete the 25-hour Engine Inspection Checklist for TEO-540-C1A engines as a
record of engine service. Record the engine hours.
WARNING BEFORE ANY ENGINE INSPECTION OR SERVICE PROCEDURE,
25-Hour Engine Inspection Checklist for TEO-540-C1A Engines
Engine Serial Number:____________________ Engine Time:_________________________
Date Inspection Done:__________________ Inspection done by:______________________
Inspection Item
Complete the Visual
Inspection Checklist in this
chapter.
Complete the Operational
Ground Check in Chapter
72-00.
Measure and record the oil
level.
Calculate oil consumption.
Complete an initial oil
change.
© 2018 Avco Corporation. All Rights Reserved
November 2018
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 A PROPELLER STRIKE, SERIOUS
INJURY, OR DEATH.
Comments
Refer to the section "Visual
Inspection for TEO-540-C1A
Engines" in this chapter.
Make sure the engine operates
correctly to specifications.
Refer to the section "Oil Level
Check" in Chapter 12-10.
Refer to the "Oil Consumption"
section in Chapter 12-10
Complete this 25-hour
inspection again, as needed, until
oil consumption stabilizes.
Refer to the section "Oil Change
Procedure" in Chapter 12-10.
Results/Notes Done
05-20
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