Fire Protection

Question 1

What are the indications for an APU Fire?

Answer 1

▪ Continuous Repetitive Chime (CRC) sounds.
▪ Red MASTER WARN lights flash.
▪ Red guarded APU FIRE light illuminates on the overhead FIRE panel.
▪ APU FIRE message and associated action steps appear in the E/WD memo section.
▪ APU page appears on the SD.

Question 2

❇️How many halon fire bottles available for each engine?
❇️The APU?
❇️The cargo compartments?

Answer 2

▪ Each engine has 2 bottles.
▪ APU has 1 bottle.
▪ The Forward and Aft cargo compartments share 1 bottle.

Question 3

Describe the APU’s automatic fire protection function.

Answer 3

▪ The APU master computer automatically performs an APU EMER SHUTDOWN and discharges the APU fire extinguisher.

NOTE: APU automatic shutdown due to a fire and Fire Bottle discharge is only available when the aircraft is on the ground.

Question 4

What type of smoke detection system available in the avionics compartment?

Answer 4

▪ Smoke detectors which only sense particulates.

▪ Heat sensing is not available.

Question 5

What location can the Aft Cargo compartment’s temperature is displayed and can be monitored?

Answer 5

▪ Aft Cargo compartment temperature is displayed and can be monitored from either:
❇️ECAM COND page
❇️ECAM CRUISE page

Question 6

What are the exterior aircraft indications of an APU fire?

Answer 6

▪ External warning horn sounds at the nose of the aircraft.
▪ Red APU FIRE light illuminates on the Exterior Service Bay Interphone Panel