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DETECTOR
2
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Vol. 1 10--10--3
REV 56, Jan 31/03
FIRE PROTECTION
Introduction
Flight Crew Operating Manual
CSP A--013
MASTER
Extinguishing System Block Diagram <MST>
Figure 10---10---2
AUTOMATIC MODE
5 SECOND DELAY
AND WEIGHT ON
WHEELS RELAY
LH ENG
FIRE PUSH
SWITCH/LIGHT
RH ENG
FIRE PUSH
SWITCH/LIGHT
BOTTLE ARMED
PUSH TO DISCH
SWITCH/LIGHT
BOTTLE ARMED
PUSH TO DISCH
SWITCH/LIGHT
ENGINE FIRE
EXTINGUISHER
CONTAINER
ENGINE FIRE
EXTINGUISHER
CONTAINER
LH ENGINE
NACELLE
RH ENGINE
NACELLE
FIRE DETECTION/
MONITOR
PANEL
APU FIRE
EXTINGUISHER
CONTAINER
APU
ENCLOSURE
FIRE DETECTION
CONTROL UNIT
BOTTLE ARMED
PUSH TO DISCH
SWITCH/LIGHT
HORN
LAVATORY
FIRE
EXTINGUISHER
FLIGHT COMPARTMENT
PORTABLE FIRE
EXTINGUISHER
CABIN
PORTABLE FIRE
EXTINGUISHER
APU
FIRE PUSH
SWITCH/LIGHT
DUC’S
CARGO
SMOKE
DETECTORS
NORMAL
CARGO SMOKE
PUSH
SWITCH/LIGHT
STANDBY
CARGO SMOKE
PUSH
SWITCH/LIGHT
NORMAL
BOTTLE ARMED
PUSH TO DISCH
SWITCH/LIGHT
STANDBY
BOTTLE ARMED
PUSH TO DISCH
SWITCH/LIGHT
CARGO FIRE
EXTINGUISHER
CONTAINER
CARGO
COMPARTMENT
CARGO FIRE
EXTINGUISHER
CONTAINER
LAVATORY
TRASH BIN
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REV 56, Jan 31/03
Vol. 1 10--10--4
FIRE PROTECTION
Introduction
Flight Crew Operating Manual MASTER
CSP A--013
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Vol. 1 10--20--1
REV 56, Jan 31/03
FIRE PROTECTION
Fire Detection and Extinguishing (FIDEEX)
Flight Crew Operating Manual
CSP A--013
MASTER
1. FIRE DETECTION AND EXTINGUISHING
A. Engine
Each engine detection system is divided into two zones (A and B):
S Zone A covers the core section of the engine and is provided with fire detection and
extinguishing
S Zone B covers the exhaust pipe and pylon area which contains the 10th and 14th
stage bleed air ducting. No fire extinguishing protection is provided for this zone.
Engine fire detection is provided by dual heat sensitive detection loops (designated
loop A and B) arranged in parallel around the engine, exhaust pipe and pylon areas.
Each loop is connected to the control unit and is monitored continuously for fire or
overheat conditions. In normal operation, both detection loops must detect a fire or
overheat condition before a fire warning is generated.
Control unit loop detection is controlled through LH/RH, ENG and JET switches on the
FIRE DETECTION panel. The switch is used to select A, BOTH or B loop detection.
If one loop detects a fire, when both loops are selected, this is considered a False Fire
and a L/R FIRE FAIL caution message will be displayed on the EICAS primary page.
During normal operations with both loops selected, the tables in this section lists the
indications that are displayed if a fire, failure, or power loss is detected:
REV 56, Jan 31/03
Vol. 1 10--20--2
FIRE PROTECTION
Fire Detection and Extinguishing (FIDEEX)
Flight Crew Operating Manual MASTER
CSP A--013
Engine Fire/Overheat Detection System --- Schematic
Figure 10---20---1
XXXXXXX XXXXX
DCU’S
LHS ENGINE RHS ENGINE
ENGINE LOOPS ENGINE LOOPS
CONTROL UNIT
FIXED CORE
COWL LOOPS
PYLON LOOPS
JETPIPE LOOPS
MASTER WARNING
SWITCH/LIGHT
MASTER CAUTION
SWITCH/LIGHT
ENGINE FIRE
PUSH SWITCH/LIGHT
MASTER CAUTION
SWITCH/LIGHT
MASTER WARNING
SWITCH/LIGHT
CO--PILOT’S
GLARESHIELD
EICAS
PRIMARY
PAGE
PILOT’S
GLARESHIELD
Vol. 1 10--20--3
REV 56, Jan 31/03
FIRE PROTECTION
Fire Detection and Extinguishing (FIDEEX)
Flight Crew Operating Manual
CSP A--013
MASTER
Fire Detection/Firex Monitor Panel <MST>
Figure 10---20---2
ENGINE BOTTLE 1, 2 Toggle
Switches (spring loaded to
NORM)
TEST -- Applicable Firex
bottle squib circuit
continuity are checked.
L/R ENG SQUIB 1 (2)
advisory (green) message
displayed if test
successful.
NORM -- Selects normal
operation.
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LH (RH) ENG FIRE
PUSH, BOTTLE 1
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