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YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
Inspection Item
Look for any fuel or oil
leaks before cleaning the
engine.
Clean the engine.
Engine and Cowling
Examine all hoses, lines,
connections, wiring,
fittings, and baffles for
loose connections and any
damage.
Examine the cowling and
baffles for damage and
correct installation.
Champion Electronic Ignition System
Remove spark plug
connector nuts and
examine spark plug cable
leads and ceramics for
corrosion and deposits.
Clean the cable ends,
spark plug walls, and
ceramics with a clean lint-
free cloth moistened with
methyl-ethyl-ketone
(MEK), acetone, or wood
alcohol.
Rotate or replace spark
plugs as necessary.
Replace any broken,
cracked, deformed, or
corroded parts.
Dry all parts using
compressed air.
Visually examine the
ignition harness for
evidence of chafing or
deterioration.
© 2021 Avco Corporation. All Rights Reserved
February 2021
50-Hour Inspection Checklist (Cont.)
Comments
Tighten any loose hardware.
Refer to the latest revision of the
Service Table of Limits - SSP-
1776 for torque values.
Replace damaged components as
per the Direct Drive Overhaul
Manual.
Replace damaged cowling or
baffles. Refer to the aircraft
OEM procedures.
Corrosion and deposits are
evidence of leaking spark plugs
or of improper cleaning of the
spark plug walls or connector
ends.
Refer to Table 2 in Chapter 74-
20.
Replace the harness assembly if
any leads are worn, damaged, or
broken.
Results/Notes
Page 19
Done
05-20
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