Fire Protection Systems

Question 1

Within the fire extinguishing system what colour is the normal cartridge?

Answer 1

Yellow

Question 2

Within the fire extinguishing system what colour is the crossfeed cartridge?

Answer 2

Grey

Question 3

Within the fire extinguishing system when the thermal discharge indicator has operated, what colour does the indicator display?

Answer 3

Red

Question 4

Where is the Fire Extinguisher panel?

Answer 4

Overhead console

Question 5

What indications can be observed and where when a fire extinguisher bottle is discharged?

Answer 5

BTL1 LOW and/or BTL2 LOW indication provided on the fire extinguisher panel

Question 6

What cockpit indications are there for a No. 1 engine bay fire?

Answer 6

Flashing master warning lights, ENGBAY1 FIRE warning on the WCA window of the IDU, red FIRE showing on the Engine 1 extinguisher push button, red light on the No. 1 EMSS

Question 7

What happens in relation to the firewire when there is an engine bay fire?

Answer 7

With the increase in temperature the firewire filler materials impedance decreases and completes a circuit at above 200°c

Question 8

During the normal operation of the fire extinguishing system if an extinguisher push button is pressed which operating head is fired?

Answer 8

The yellow cartridge in the associated fire extinguisher bottle

Question 9

When the fire extinguisher crossfeed switch is in the XFEED position and the lit extinguisher push button is pressed which operating head is fired?

Answer 9

The grey cartridge in the opposite fire extinguisher bottle

Question 10

When will the engine bay fire extinguishers automatically operated?

Answer 10

Automatically after 10 seconds through the crash inertia switches (excess of 6G - extremely heavy landing or a crash)