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IO-390-D Series Engine Maintenance Manual
IO-390-D Series Engine Maintenance Manual
400-Hour Engine Inspection Checklist for IO-390-D Series Engines (Cont.)
Complete the "Cylinder Borescope Inspection" procedure in Chapter 72-30. Record the results
below for each engine cylinder.
Cylinder 1
Cylinder 2
Cylinder 3
Cylinder 4
Inspection Item
Operational Test
Complete an Operational
Ground Check in Chapter 72-00.
© 2020 Avco Corporation. All Rights Reserved
March 2020
Comments
Results/Notes
Done
05-20
Page 29
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