Fire Detection and Suppression Systems Flashcards
What is the purpose of the Engine Fire Detection System
The engine fire detector system is designed to warn flight crew in the event of a fire or overheat condition.
What does the Fire Detection System consist of?
The fire detector system consists of a single loop fire detector installed in each engine. The loop is located in close proximity to the main flammable fluid components inside the engine cowl.
How does the Engine Fire Detection operate?
When the system detects either overheat (average temperature) or fire (discrete air temperature), a signal is sent to the Display Control Unit (DCU) and an associated CAS message is displayed
How is the Engine Fire Detector System powered?
The engine fire detector system is powered by the Emergency Bus.
What temperature is Averaging function set off at?
Average Temperature 211°C
What temperature is discrete function set off at?
Discrete Temperature 565°C
What does the Fire EXTINGUISHING System consist of?
The fire extinguishing system consists of a single bottle of extinguishing agent (Halon) that may be discharged in either left or right hand engine, and is installed in the aircraft rear fuselage.
E1 (2) FIRE Procedure
Thrust lever…………………………..IDLE
START/STOP knob ……………….STOP
SHUTOFF button…………………..PUSH IN
On ground or if fire persists after 30 seconds in flight:
BOTTLE switch …………………….DISCH
What indications will be provided in the event of a fire/overheat on the ground, or in flight?
Aural warning sounds
The “FIRE” icon in the respective engine Interstage Turbine Temperature (ITT) indication is displayed
CAS message ‘Fire’ will be displayed in red
The SHUTOFF button will light red
indicating the FIRE condition (red light will remain ON while fire condition persists)
What does Pushing SHUTOFF button 1 or SHUTOFF button 2 do?
Closes the respective side fuel and bleed shutoff valves
Enables the fire extinguisher bottle discharge
A white strip will light up on the pushed SHUTOFF button
