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cartridges (squibs) to permit discharge of the fire extinguishing agent into either engine
nacelle. The pressure switches are connected to the FIDEEX, and if the bottle
pressure decrease to a preset point, an ENG BTL 1 (2) LO caution message will be
displayed on the EICAS primary page.
Fire Detection and Extinguishing (FIDEEX) --- Engine Push Buttons
Figure 10---20---2
BOTTLE 1 and 2 ARMED PUSH TO DISCH
Used to discharge one bottle.
BOTTLE 1 or 2 ARMED PUSH TO DISCH (green)
light indicates respective squib is armed and
bottle is charged.
LH and RH ENG FIRE PUSH
Used to arm left or right squibs of both bottles. Closes engine fuel,
bleed air and hydraulic shut--off valves.
LH and RH ENG FIRE PUSH (red) light indicates that a fire is
detected in respective engine.
Left Glareshield Right Glareshield
Vol. 1 10--20--4
FIRE PROTECTION
Fire Detection and Extinguishing (FIDEEX) REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
Engine Fire Extinguishing --- Schematic
Figure 10---20---3
Left engine shown,
right engine the same.
NOTE
AFT EQUIPMENT BAY
ZONE A ZONE A
LH ENGINE RH ENGINE
NO. 2
ENGINE
FIREX
BOTTLE
NO. 1
ENGINE
FIREX
BOTTLE
LEFT & RIGHT ENGINE
BRIDGEWIRE MONITOR B
(MONITORS FOR OPEN
CIRCUITS)
LEFT & RIGHT ENGINE
BRIDGEWIRE MONITOR A
(MONITORS FOR OPEN
CIRCUITS)
ENGINE BOTTLE 1
MONITOR
LEFT ENGINE SHUTDOWN
SIGNALS (SHUTS OFF
GENERATOR, HYDRAULIC
SOV, BLEED AIR)
CHANNEL A
CHANNEL B
L GENERATOR
LEFT HYD SOV
LEFT BLEED AIR
FIDEEX CONTROL UNIT
DCUs
L ENG SQUIB
BOT 1 LO PRESS
LEFT GLARESHIELD PANEL
RIGHT GLARESHIELD PANEL
EICAS DISPLAY
BOT 1 L ENG
SQUIB FAIL
BOT 1 R ENG
SQUIB FAIL
BOTTLE 1
LOW
PRESSURE
SWITCH
CBP--1
CB1--R2
CB1--R3
FIREX A
FIREX B
DC EMERGENCY BUS
FROM
ENGINE FIRE
DETECTION
SYSTEM
LH ENG
FUEL SOV
(MONITORS FOR BOTTLE
LOW PRESSURE)
Vol. 1 10--20--5
FIRE PROTECTION
Fire Detection and Extinguishing (FIDEEX) REV 3, May 03/05
Flight Crew Operating Manual
CSP C--013--067
Fire Detection and Extinguishing (FIDEEX) ---
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