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S 958-057-C00
(6) Apply heat-resistant tape (CP2306) to these areas:
(a)
The acoustical panels adjacent to the repaired area of the abradable liner for protection against heat.
(b)
The surfaces of all the acoustical panels between the 4:00 and
8:00 o'clock locations (aft looking forward).
NOTE: This will prevent the possible plugging of the
____ acoustical panel perforations with abradable dust caused by the hand sanding of the liner patch.
S 038-058-C00
(7) On the forward and mid acoustical panels, locate the acoustical panels attachment screws you want to remove to attach the clamps with the slave bolts (Fig. 803).
(a) Remove the screws, but keep the panels in their position.
G. Patch Repair of the Abradable Shroud
S 348-059-C00
(1) Make a mark around the area of the shroud you want to repair.
S 348-112-C00
CAUTION: MAKE SURE YOU DO NOT DAMAGE THE FAN CASE WITH THE CUTTING TOOL
_______ WHEN REMOVE THE ABRADABLE MATERIAL. DAMAGE TO EQUIPMENT CAN OCCUR.
(2) Remove the abradable material from this area, down to the fan case parent metal.
(a) Use a sharp cutting tool.
S 348-060-C00
(3)
Make the surface of the case where you want to apply the patch rough.
(a) Use a 80 or 120 grade abrasive cloth (CP2239) and sand in a criss-cross pattern to get a good surface preparation.
(4)
Use an air source to clean the area.
S 148-061-C00
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
SEE A
THERMALLY-
CONTROLLED
ELECTRICAL
SUPPLY
PRESSURE
RELIEF
VALVE
RELEASE FILM AIR SUPPLY
VALVE
HEATING PRESSURE
BLANKET GAGE
CLAMP AND BOLT A
(5 LOCATIONS)
PRESSURE
PAD
HEAT
RESISTANT A
TAPE
REPAIR
PATCH
24 INCHES
(600 mm)
FAN
FWD CASE
____ALL ENGINE COMPONENTS EXCEPTNOTE:
A
FAN CASE REMOVED FOR CLARITY. S-M56-MM-03046-00-B
Patch Repair of the Abradable Shroud
Figure 803 (Sheet 1)
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
AIR SUPPLY PRESSURE GAGE
CLAMP
A-A NUT (2 LOCATIONS)
. INFLATEABLE JACKET - APPROPRIATE SHAPE/SIZE TO FIT IN THE PAD . CLAMP - RIGID "BLUE" STEEL APPROXIMATELY (4mm MINIMUM) (QTY; 3) DESCRIPTION AND MATERIAL: MAXIMUM COMPRESSION - 100 KPa = 14.5 PSI (TEMPERATURE CAPABILITY = 150`)
S-M56-MM-03047-00-B
Patch Repair of the Abradable Shroud Figure 803 (Sheet 2)
E63101
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S 118-062-C00
