Lycoming YO-233-B2A Maintenance Manual page 144

Connecting Rod Inspection Checklist for YO-233-B2A Engine Models (Cont.)
Item
Measure the Inner
Diameter (ID) of
the connecting rod
bushing using a
micrometer (Figure
25)
Measure the
distance from the
surface of the
connecting rod to
the edge of the
connecting rod
bushing installed in
the connecting rod
on both sides of the
connecting rod.
Examine the ID of
the connecting rod
bushing for a visible
split line.
Figure 25
Connecting Rod
72-30
Page 124
Comments
If the connecting rod
bushing is worn beyond
service limits per the
latest revision of the
Service Table of Limits
- SSP-1776, replace the
bushing per the
"Connecting Rod
Bushing Replacement"
procedure in this
chapter.
Refer to the latest
revision of Service
Bulletin No. SB-630
for inspection
instructions and any
additional details.
Replace the bushing as
necessary per the
"Connecting Rod
Bushing Replacement"
procedure in this
chapter.
YO-233-B2A Engine Maintenance Manual
TEO-540-A1A Engine Maintenance Manual
Findings/Corrective Action
Bushing ID Measurement
Connecting Rod 1
Connecting Rod 2
Connecting Rod 3
Connecting Rod 4
Connecting Rod 1
Connecting Rod 2
Connecting Rod 3
Connecting Rod 4
For connecting rods that pass the Visual Inspection
herein, complete a Magnetic Particle Inspection on
all connecting rods as per the "Non-Destructive
Testing" section in Chapter 05-50.
Findings/ Corrective Action of
Magnetic Particle Inspection
Connecting Rod 1
Connecting Rod 2
Connecting Rod 3
Connecting Rod 4
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Done
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Done
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
Acceptable
Replace
February 2021