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A 
747-400 
MAINTENANCE MANUAL
SEE A 
SEE B
FLOOR-MOUNTED 
ESCAPE SLIDE
UPPER DECK COMPARTMENT  RUBBER 
PADS
ESCAPE SLIDE PACK 
SEE B 
INFLATION 
TRIGGERING 
CABLE
SHROUD 
PACKBOARD CHUTE ESCAPE SLIDE 
EXTENSION PANEL GAS SUPPLY HOSE 
GIRT BAR RETAINER CHANNEL 
CHUTE 
SLIDE INFLATION 
STORED GAS BOTTLE
CHUTE TORQUE 
BASE ASSEMBLY BAR 
(PLATFORM) SWIVEL 
FITTING 
FLOOR INBD FWDTRACKS 
SLIDE IN OPERATION-READY POSITION 
A
Floor-Mounted Escape Slide - Component Location Figure 1 (Sheet 1) 
B40471
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A
747-400 MAINTENANCE MANUAL 
CHUTE CHUTE EXTENSION PANEL AND 
EXTENSION PACKBOARD LOCKING PLATE 
PANEL
MANUAL INFLATION HANDLE 
ESCAPE 
SLIDE 
PACK
FLOOR 
ENTRY
TRACKS 
DOORWAY
CHUTE INBDFWD 
FLOOR PACKBOARD 
TRACK FLOOR
RELEASE RAMP 
SHROUD PACKBOARD (PAWL LOCKS)
BASE ASSEMBLY MANUAL RELEASE
(PLATEFORM) ASSIST HANDLE HANDLE BOTTLE FIRING
SLIDE IN OPERATION-READY POSITION 
LANYARD 
PIVOT SUPPORT 
RETAINER
B SPRING  REGULATOR 
MANUAL BOTTLE 
INFLATION 
HANDLE OUTBOARD HINGED SECTIONCABLE ASSEMBLIES 
GAS SUPPLY HOSE (2 LOCATIONS) STOWAGE CONTAINER RETAINER PIN 
STORED FWD 
(2 LOCATIONS) GAS 
INBOARD BOTTLE 
HINGED SECTION 
INBD 
CRADLE SUPPORT ASSEMBLY 
BASE ASSEMBLY (PLATFORM) 
STORED GAS BOTTLE INSTALLATION 
C
Floor-Mounted Escape Slide - Component Location 
Figure 1 (Sheet 2)
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B40484
A 
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MAINTENANCE MANUAL
 4.  Inflation Triggering Mechanism (Fig. 1)
______________________________
 A.  Operation (ignition) of the stored gas bottle, is initiated by a load applied to the bottle firing lanyard. The firing lanyard (approximately 6-inches long) is supplied and installed in each stored gas bottle and connected to the triggering mechanism mounted on the bottle cradle support. The free ball end of the bottle firing lanyard is inserted into a slotted hole in the firing mechanism spring-loaded retainer.
 B.  The ignition load is applied to the bottle firing lanyard, by the inflation cable connected between the trigger mechanism cable assembly and the top of the packboard assembly. When the escape slide pack assembly (including the packboard assembly) is deployed out of the doorway, tension is applied to the inflation cable and transfers a pull-load to the triggering mechanism cable and the bottle firing lanyard.
 
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