CHUTE EXTENSION PANEL AND PACKBOARD LOCKING PLATE 
ENTRY DOORWAY FLOOR TRACKS
FLOOR TRACK 
SHEAR PLUNGER 
RELEASE KNOB
MANUAL INFLATION HANDLE 
NOTE:
SHROUD INSTALLED AROUND STORED GAS CHUTE 
BOTTLE ON SOME AIRPLANES NOT SHOWN 
BASE ASSEMBLY 
(PLATFORM) SLIDE PACK COVER RELEASE CABLE FWD INBDSHROUD FLOORASSIST RAMP
HANDLE RESTRAINT BAYONET PACKBOARD MANUAL 
PACKBOARD RECEPTACLE 
RELEASE HANDLE
SLIDE IN OPERATION-READY POSITION 
B B 
PIVOT 
MANUAL SUPPORT REGULATOR 
INFLATION HANDLE
BOTTLE FIRING OUTBOARD HINGED LANYARD RETAINER SECTION 
INFLATION GAS SUPPLY HOSE
CABLE ASSEMBLY 
(2 LOCATIONS) MANUAL INFLATION HANDLE LOCK RELEASE CABLE ASSEMBLY 
RETAINER PIN
SPRING (2 LOCATIONS) SAFETY PIN STOWAGE CONTAINER STORED GAS BOTTLE
B 
INBOARD 
HINGED 
SECTION
CRADLE 
SUPPORT 
ASSEMBLY
FWD BASE ASSEMBLY
SLIDE INFLATION 
(PLATFORM) 
FWD
STORED GAS BOTTLE 
C 
Floor-Mounted Escape Slide Operational Test 
Figure 501 (Sheet 2)
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MAINTENANCE MANUAL
CHUTE  
ESCAPE SLIDE  MANUAL  
GAS SUPPLY  MANUAL INFLATION  
HOSE  INFLATION  HANDLE  
HANDLE  
LOCK CONTROL  
ESCAPE  CABLE  
SLIDE  
GIRT  
GIRT  
BAR  
INFLATION  
ACTUATION  
CABLE  
ENTRY  
DOORWAY  SWIVEL  
FITTING  PACK COVER  
RELEASE CABLE  
SHROUD  
RAMP  
PLATE  
FLOOR RAMP  
ESCAPE SLIDE DEPLOYED  
D 
Floor-Mounted Escape Slide Operational Test 
Figure 501 (Sheet 3)
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747-400 
MAINTENANCE MANUAL
INFLATION ACTUATION  
CABLE BRACKET ASSEMBLY  
LOCKING NUT OUTER  REGULATOR BOTTLE  
SUPPORT  
ASSEMBLY  
MANUAL  
INFLATION  
ESCAPE SLIDE AND  HANDLE  
CHUTE ASSEMBLY  CLEVIS  
BRACKET  
ASSEMBLY  
CRANK  SPRING  
MANUAL INFLATION  ASSEMBLY  
CONTROL CABLE HANDLE LOCK  ASSEMBLY CRANK  
INFLATION  
ACTUATION  
CABLE  CLEVIS  
INSPECTION  
HOLES  CLEVIS  
TERMINAL  JAMNUTS  
PIN  INFLATION  
ACTUATION  
CABLE  
MANUAL  
INFLATION  
HANDLE LOCK  
LOWER BRACKET  OUTER  INSPECTION  CONTROL CABLE  
ASSEMBLY  LOCKING NUT  HOLE  OUTER  
LOCKING  
A-A NUT  
UPPER  
BRACKET  
ASSEMBLY 
B-B 
Floor-Mounted Escape Slide Operational Test Figure 501 (Sheet 4) 
B40517
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A 
747-400 MAINTENANCE MANUAL
 S 945-006-002
 (3)  
Make sure there is no equipment or personnel in the area where the slide will deploy.
S 985-007-002
 (4)  
Remove the stored gas bottle safety pins.
 F. Procedure
 S 985-008-002
 (1) 
Pull up the release handle to release the packboard from the base.
 
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