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EICAS Messages........................................................................................................ 9-23
EMS Circuit Protection ................................................................................................ 9-26
9-ii For Training Purposes Only
Sept 04
P I LOT T R A I N I N G GU I D E
FIRE PROTECTION
PAGE INTENTIONALLY LEFT BLANK
For Training Purposes Only
Sept 04
9-1
P I LOT T R A I N I N G GU I D E
FIRE PROTECTION
INTRODUCTION
A Fire Detection and Extinguishing (FIDEEX) system with fault discrimination is
installed with fire detectors located in each engine nacelle, and in the APU
compartment.
The FIDEEX system interfaces with numerous airplane equipment and provides the
following capabilities:
• Monitor zones for fire/overheat/smoke events and FIDEEX system health and
status
• Automatic detection and reporting of fire events for each of the two power plants
and the Auxiliary Power Unit (APU)
• Fire extinguishing for each of the power plants and APU upon receipt of pilot
initiated arming and discharging commands
• Automatic detection and reporting of overheat events for the two Main Wheel
Wells (MWWs)
• Automatic detection and reporting of smoke events for each of the lavatories (fwd/
aft), baggage compartment, avionics bay, and up to four cabin closets (requires
installation of optional smoke detectors)
The FIDEEX system includes fire detector assemblies, sensing elements, smoke
detectors (optional), fire extinguishing assemblies, and a FIDEEX control unit.
GX_09_001
Lavatory Smoke
Detection
AFT
Lavatory
AFT Closet
Optional
Power Plant Fire
Detection/Extinguishing
Forward Left and Right
Closet (optional smoke
detection)
Main Landing Gear
Overheat Detection
APU Fire Detection/
Extinguishing System
Baggage Compartment
Smoke Detection
9-2 For Training Purposes Only
Sept 04
P I LOT T R A I N I N G GU I D E
FIRE PROTECTION
FLIGHT COMPARTMENT FIRE WARNING
The fire protection system provides the means to detect and extinguish a fire in the
engine nacelles and in the auxiliary power unit (APU) compartment. Engine/APU fire
warning is provided by:
• MASTER warning lights (2)
• Aural warning
• EICAS messages
• Three red warning lights (one for each engine nacelle, and one for the APU
compartment), installed in the flight compartment fire handles
Both the detection systems and extinguishing systems permit testing and/or
monitoring for system faults from the flight compartment. A fire warning and
extinguisher preflight test of the system is provided in the flight compartment.
FIRE DETECTING SYSTEM
Fire detection elements are installed in each engine and APU compartment, permitting
the flight crew to monitor any fire condition in these areas.
MAIN WHEEL WELL OVERHEAT WARNING
An overheat detection element in the wheel well area warns of an overheat condition
in either of the main wheel wells. Indication and test function is provided in the flight
compartment.
FIRE AGENT DISCHARGE INDICATION
The fire extinguisher bottle is fitted with a low pressure switch. The switch provides
an annunciation in the flight compartment when pressure drops below a predetermined
pressure setting.
SMOKE DETECTION
The FIDEEX system can provide smoke detection capability for the baggage
compartment, forward and aft lavatories, avionics bay, and up to four cabin closets.
PORTABLE FIRE EXTINGUISHERS
Portable fire extinguishers are located throughout the airplane. One halon type fire
extinguisher is installed in the flight crew compartment. Please refer to the
EMERGENCY EQUIPMENT chapter for more information on the portable fire
extinguishers.
For Training Purposes Only
Sept 04
9-3
P I LOT T R A I N I N G GU I D E
FIRE PROTECTION
DESCRIPTION
SYSTEM OVERVIEW SCHEMATIC
DISCH
PULL
1 2
L PULL
A
P
U
DISCH
1 2
DISCH
1 2
RPULL
8
6 7
10
9
4
3
2
1
5
FIDEEX
Control Unit
DAU
IAC
LH MLG Bay RH MLG Bay
LH ENGINE APU COMPARTMENT RH ENGINE
1
2
3
4
5
6
7
8
9
10
Fire Handles
Master WARNING/CAUTION
LIGHTS
EICAS Page displays
Warnings, Cautions, Advisory
and Status Messages
Left Main Wheel Well
Overheat Detection
Right Main Wheel Well
Overheat Detection
Fire Extinguisher
　
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