A320 jetBlue Lights & Switches Fire Panel

Question 0

AGENT 1, AGENT 2 and APU AGENT pb

Answer 0

SQUIB: (white) Illuminates white to indicate that the respective
fire extinguishing system is armed.
DISCH: Illuminates amber when the respective bottle has lost
pressure.

Question 1

Engine Fire guarded pb switch

Answer 1

During normal operation pb is in and extinguished.
FIRE: Illuminates red when the ENGINE fire warning is active.
Pushed and released: The pb pops out, sending an electrical signal
that performs the following for the corresponding engine
1 Silences the aural fire warning.
2 Arms the fire extinguisher squibs.
3 Closes the low-pressure fuel valve.
4 Closes the hydraulic fire shut off valve.
5 Closes the engine bleed valve.
6 Closes the pack flow control valve.
7 Cuts off the FADEC power supply.
8 Deactivates the IDG.

Question 2

ENG 1(2) TEST pb

Answer 2

Permits the crew to test the fire detection and extinguishing sys-
tem. While TEST pb is pressed:
1 A continuous repetitive chime sounds.
2 The MASTER WARN lights flash.
3 ENG FIRE 1(2) warning appears on ECAM.
4 The ENG FIRE pb illuminates red.
5 SQUIB lights illuminate white if discharge supplies are available.
6 DISCH lights illuminate amber.
7 FIRE light on ENG panel (pedestal) illuminates red.

Question 3

APU FIRE pb guarded

Answer 3

During normal operation, the pb is in and extinguished. If an APU
fire is detected while on the ground, the APU shuts down automati-
cally and the extinguishing agent discharges.
FIRE: pushbutton illuminates red when the APU fire warning is
activated.
Pushed and released: The pb pops out, sending an electrical signal
that performs the following
1 Shuts down the APU.
2 Silences the aural warning.
3 Arms the squib on the APU fire extinguisher.
4 Closes the low-pressure fuel valve.
5 Shuts off the APU fuel pump.
6 Closes the APU bleed valve and X-bleed valve.
7 Deactivates the APU generator.

Question 4

AGENT pb

Answer 4

SQUIB: (white) Illuminates white to indicate that the fire extin-
guishing system is armed.
DISCH: Illuminates amber when the bottle has lost pressure.

Question 5

APU TEST pb

Answer 5

Allows testing of the fire detection and extinguishing system, when 
pressed:
1 A continuous repetitive chime sounds.
2 The MASTER WARN lights flash.
3 APU FIRE warning appears on ECAM
4 The APU FIRE pushbutton illuminates red.
5 SQUIB light illuminates white.
6 DISCH light illuminates amber.