OUTER 12 10
16 1418PLATFORM 20
1511 8
13
1917 9 7 6
B B
AIRFOIL
LEADING AIRFOIL EDGE TRAILING EDGE
COOLING SLOTS
RADIAL DIRECTION
1.60 INCHES
(40.6 mm) INNER PLATFORM (REF)
HPT NOZZLE GUIDE VANES
A
NOTE:NUMBERS ARE COOLING HOLE ROW NUMBERS
GSM-1105581-03-A
Combustion Chamber and High Pressure Turbine Nozzle Guide Vanes Borescope Inspection Figure 606 (Sheet 2)
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
OUTER
LINER COOLING HOLES
INNER SUPPORT RING
PANEL
SEE C OVERHANG
INNER
COWL INNER
LINER
DILUTION HOLES SECONDARY SWIRL NOZZLE IGNITER
FERRULE
OUTER
COWL
PANELS PLATE SPECTACLE
IGNITER FERRULE
4 AND 8 O'CLOCK
SLEEVE
B PRIMARY
SWIRL DEFLECTOR
NOZZLE
COMBUSTION CHAMBER
C
G-M56-SM-1325(1)-00-B
Combustion Chamber and High Pressure Turbine Nozzle Guide Vanes Borescope Inspection Figure 606 (Sheet 3)
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
RADIAL CRACK SPECTACLE
(EXAMPLE) PLATE
CIRCUMFERENTIAL CRACK
CONNECTED (EXAMPLE) CRACK (EXAMPLE) RADIAL CRACK (EXAMPLE)
DEFLECTOR RADIAL
CRACK
SLEEVE (EXAMPLE) CIRCUMFERENTIAL
DOME AREA CRACKS CRACK
(EXAMPLE) G-M56-MM-0129(1)-01-B (EXAMPLE)
MISSING
MATERIAL
MISSING MATERIAL(EXAMPLE) BETWEEN THE CRACKS
SPECTACLE PLATE
SLEEVE
DEFLECTOR BURN THROUGH HOLE
S-M56-MM-0130(1)-00-B
DOME AREA MISSING MATERIAL(EXAMPLE)
Combustion Chamber and High Pressure Turbine Nozzle Guide Vanes Borescope Inspection Figure 606 (Sheet 4)
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
COOLING
EXAMPLE OF A CRACK THROUGH A RIB
EXAMPLE OF MATERIAL THAT IS NOT THERE AND IS NOT MORE THAN 2 TIMES THE HOLE AREA
HOLES
OUTER LINER CRACKS AND MATERIAL THAT IS GONE (EXAMPLE)
GMM-1077362-03-B
Combustion Chamber and High Pressure Turbine Nozzle Guide Vanes
Borescope Inspection
Figure 606 (Sheet 5)
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