(7)
LOSS OF HARD COATING ON MID-SPAN SHROUDS
(8)
PLATFORM FRETTING
D.
IF DAMAGE IS FOUND, REFER TO 72-31-02 I/C FOR INSPECTION LIMITS.
E.
REMOVE MATS AND CHECK FOR LOOSE ITEMS OR TOOLS.
F.
REMOVE DO-NOT-OPERATE IDENTIFIERS FROM START LEVERS.
Fan Blade Check
Figure 109
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
1ST-STAGE STATOR VANE CHECK
1. EQUIPMENT AND MATERIALS A.PROTECTIVE MAT (2) - RUBBER MANUFACTURER'S ASSOC., GRADE SC43, NEOPRENE SPONGE, 1 INCH THICK,
APPROX. 3 X 4 FEET WITH WARNING STREAMERS ATTACHED
2.CHECK 1ST-STAGE STATOR VANES FOR DAMAGE
A. CHECK THAT START LEVERS ARE IN CUTOFF POSITION. INSTALL DO-NOT-OPERATE IDENTIFIERS.
B. INSTALL PROTECTIVE MATS IN LOWER HALF OF INLET COWL.
C. CHECK STATOR VANES FOR THE FOLLOWING:
(1)
BROKEN OR MISSING VANES
(2)
CRACKS
(3)
DISENGAGEMENT FROM INNER SHROUD
(4)
DISTORTED LEADING OR TRAILING EDGES
(5)
DENTS OR NICKS
(6)
MISSING MATERIAL
D.
IF DAMAGE IS FOUND, REFER TO 72-31-03 I/C FOR INSPECTION LIMITS.
E.
REMOVE MATS AND CHECK FOR LOOSE ITEMS OR TOOLS.
F.
REMOVE DO-NOT-OPERATE IDENTIFIERS FROM START LEVERS.
1st-Stage Stator Vane Check
Figure 110
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
ABRADABLE SHROUD CHECK
1.EQUIPMENT AND MATERIALS A.PROTECTIVE MAT (2) - RUBBER MANUFACTURER'S ASSOC., GRADE SC43, NEOPRENE SPONGE, 1 INCH THICK, APPROX. 3 X 4 FEET WITH WARNING STREAMERS ATTACHED 2.CHECK ABRADABLE SHROUD FOR DAMAGE
A. CHECK THAT START LEVERS ARE IN CUTOFF POSITION. INSTALL DO-NOT-OPERATE IDENTIFIERS.
B. INSTALL PROTECTIVE MATS IN LOWER HALF OF INLET COWL.
C. CHECK ABRADABLE SHROUD FOR THE FOLLOWING:
(1)
RUB MARKS
(2)
CRACKS
(3)
IMPACT MARKS OR CRATERS
(4)
GROOVES OR FLAKING
D.
IF DAMAGE IS FOUND, REFER TO 72-33-00 I/C FOR INSPECTION LIMITS.
E.
REMOVE MATS AND CHECK FOR LOOSE ITEMS OR TOOLS.
F.
REMOVE DO-NOT-OPERATE IDENTIFIERS FROM START LEVERS.
Abradable Shroud Check
Figure 111
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////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
CHECK SCAVENGE OIL FILTER CLOGGING INDICATOR
1.
OPEN LEFT FAN COWL PANEL (71-11-02 MP).
2.
CHECK SCAVENGE OIL FILTER CLOGGING INDICATOR GLASS INSPECTION BOWL FOR EXPOSED RED POP-UP INDICATOR.
3.
IF RED POP-UP INDICATOR IS VISIBLE, TROUBLE SHOOT FOR OIL FILTER CLOG INDICATED (71-00-44, FIG. 107).
4.
CLOSE LEFT FAN COWL PANEL (71-11-02 MP).
SEE A
CLOGGING
INDICATOR
SEE B RED POP-UP
INDICATOR
GLASS
INSPECTION
BOWL
SCAVENGE
OIL FILTER
SCAVENGE OIL FILTER CLOGGING INDICATOR
A B
Scavenge Oil Filter Clogging Indicator Check
Figure 112
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