EFFECTIVITY
ALL CFM56 ENGINES
CFMI PROPRIETARY INFORMATION
CFM56-ALL TRAINING MANUAL
HIGH PRESSURE
TURBINE
BORESCOPE
INSPECTION
Page 128
Sep 03
HIGH PRESSURE TURBINE (HPT)
(ALL) :
Inspection with rigid probe.
Inspect the HPT nozzles through ports S13 and S15.
Use probe No 1 (black, high magnication) to inspect the
nozzle segments. The high intensity light source is used
to accurately inspect the nozzles.
Insert the probe into the ports and inspect the concave
sides and leading edges of the nozzle segments.
Note: If defects are found, a complete inspection of
the combustion chamber and the nozzles has to be
performed.
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