TEO-540-A1A Engine Maintenance Manual
05-20 © 2021 Avco Corporation. All Rights Reserved
Page 24 February 2021
YO-233-B2A Engine Maintenance Manual
5. 100-Hour or Annual Engine Inspection
A. The purpose of this inspection is to examine the engine, cylinders, hardware, and
components.
B. Complete the 100-Hour Engine Inspection after the first 100 hours of operation since the
engine has been in service and then after every 100 hours of operation or during each annual
aircraft inspection (whichever occurs first).
C. Complete the 100-hour or Annual Engine Inspection Checklist for this inspection.
WARNING
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.
NOTICE: Copy the blank checklist and complete this checklist as a record of engine
maintenance. Put the completed checklist in the engine logbook.
100-Hour or Annual Engine Inspection Checklist
Engine Model Number__________________ Engine Serial Number:______________
Date Inspection Done: ________ Inspection done by:_____________________________
Aircraft Tachometer_____________________ Engine Time:_______________________
Complete the 50-Hour Engine
Inspection.
Refer to the section “50-Hour
Engine Inspection” in this
chapter.
Examine all studs and nuts for
loose hardware and defects.
Torque loose hardware to the
correct specification torque
value in the latest revision of
the Service Table of Limits -
SSP-1776.
Champion Electronic Ignition System
Rotate, clean, and re-gap the
spark plugs as necessary.
Replace worn spark plugs.
Refer to Chapter 74-20.
Examine each ignition lead for
chafing, insulation breakdown,
frayed wiring, deterioration,
heat damage, wear, and
cracking.
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