Fire Protection

Question 1

What fire protection systems are fitted for the engines

Answer 1

The engines​ are each equipped with a fire-​detection and​ a fire-extinguishing system.​ ​The systems​ are controlled from​ the ​ENGINE FIRE panel. Fire and faults​ will be​ ​detected and the relevant alerts​ presented

Question 2

How many loops are there in the engine system

Answer 2

2 loops

Question 3

If a loop is broken will it still work

Answer 3

Yes

Question 4

How many extinguisher bottles are available for the engines

Answer 4

2

Question 5

What does pulling the fire handle do

Answer 5

Pulling a fire hand le will close the​ respective​ ​fire shut-off​ valves​ in the fuel and hydraulic​ ​systems​ and the Over​ Pressure and Shut-​Off​ Valve (OP/SOV) in the bleed-air​ system.​ ​

Question 6

How do you fire a bottle

Answer 6

Rotating​ the​ pulled fire handle in direction​ ​DISCH 1 discharges​ AGENT​ 1;​ rotating the​ ​pulled​ fire handle​ in direction​ DISCH​ 2 ​discharges​ ​AGENT​ 2.

Question 7

What can you do if the fire handle cannot be pulled

Answer 7

Manual override of ​the latch is​ possible by​ depressing the latch​ ​override button installed​ behind the fire ​handle

Question 8

What indication is there of bottle pressure

Answer 8

Agent low​ pressure will be indicated​ ​by​ agent low​ pressure lights.

Question 9

Describe an engine fire warning

Answer 9

Level​ 3 alert.​ ​Relevant fire handle light​ on.​ ​Relevant FUEL lever​ light on (OPEN​ ​position only).​ ​FIRE ENG​ 1 /2 messages​ at the LH​ ​MFDU.​ ​- ​ ENG​ 1 /2 alert​ light on at the SAP ​(SAP in back-up).​ ​

Question 10

Describe an engine fire warning test

Answer 10

Level​ 3 alert.​ ​Relevant fire handle light​ on.​ ​Relevant FUEL lever​ light on (OPEN​ ​position only).​ ​FIRE ENG​ 1 /2 messages​ at the LH​ ​MFDU.​ ​- ​ ENG​ 1 /2 alert​ light on at the SAP ​(SAP in back-up).​ ​

Question 11

What fire protection is fitted in the APU

Answer 11

The​ APU is equipped​ with a fire-detection​ and​ a fire- extinguishing​ system.​ ​ The​ systems​ are ​controlled​ from the​ APU​ FIRE panel

Question 12

Describe an APU fire warning and the result

Answer 12

Level 3​ alert​ ​-​ ​ APU FIRE light​ on​ at the​ APU FIRE​ panel​ ​-​ ​ FIRE APU message at the​ LH MFDU​ ​-​ ​ FIRE APU alert on​ at​ the​ SAP (SAP in back-up)​ ​​ ​NOTE​​ ​​ ​During​ test​ the​ APU auto​ shutdown and​ auto​ fire​ ​extinguishing ​and​ warning​ horn are ​inhibited

Question 13

What is the purpose of the warning horn

Answer 13

To alert the crew

Question 14

Describe an APU fire test

Answer 14

Level 3​ alert​ ​-​ ​ APU FIRE light​ on​ at the​ APU FIRE​ panel​ ​-​ ​ FIRE APU message at the​ LH MFDU​ ​-​ ​ FIRE APU alert on​ at​ the​ SAP (SAP in back-up)​

Question 15

How long will the fire warning remain active

Answer 15

The​ fire​ warning​ remains​ active as​ long​ as​ the​ fire ​condition​ exists

Question 16

How do you know the bottle has been fired

Answer 16

Agent​ low​ pressure will be​ indicated​ by​ an​ agent low​ pre​ssure light

Question 17

What back up is there if an APU bottle doesn’t fire automatically

Answer 17

A discharge switch,​ located​ at​ the​ APU FIRE panel, is provided​ to discharge​ the​ agent​ manually. ​In this case the​ APU fire shut-off​ valve in​ the​ fuel​ system​ closes​ and​ the​ agent​ will be​ discharged ​immediately.

Question 18

What warning is there of cargo smoke

Answer 18

Smoke​ and faults will be detected​ and the​ relevant​ alerts​ presented, level 3 MWL, smoke AFtT or FWD

Question 19

What happens when you select DISCH 1 or 2

Answer 19

Selecting​ DISCH​ 1 causes immediate total discharge of​ agent​ 1 into the selected​ ​compartment.​ Simultaneously​ agent​ 2 is discharged into the​ selected compartment​ at​ a ​reduce flow​ rate to maintain a minimum​ extinguishing​ agent​ concentration.​ ​Selecting​ DISCH​ 2 will​ discharge the​ ​ same agent​ 1 and​ agent 2, however​ the​ ​ power​ ​supplies for​ discharging​ are interchanged​ for​ redundancy.​

Question 20

What warning is there of smoke in a toilet and what is the result

Answer 20

One fire-extinguisher​ bottle is installed in​ ​ the waste container​ area in each toilet​ ​compartment.​ If​ there​ is a fire​ in the​ waste container, the​ agent​ will discharge​ automatically ​into the​ waste container. Level 2 and no auto suppression

Question 21

Describe a smoke warning system test

Answer 21

A​ smoke-warning test may​ be performed​ by​ depressing the​ SMOKE test​ button​ at​ the TEST ​panel.​ If​ no​ LOOP​ FAULT​ exists,​ ​ a ​ repetitive​ ​ triple chime is​ produced​ ​ and the master​ ​WARNING​ lights​ and​ ​ cargo SMOKE lights​ come on.​ Additionally,​ ​ a​ smoke​ message is​ ​displayed at​ LH MFDU