Fire Protection

Question 1

If an APU fire is detected on the

ground and no action is taken, what will the FADEC command after 5 seconds?

Answer 1

Automatic shutdown of the APU

Question 2

How is the fire protection

system tested?

Answer 2

EMS CDU pilot-initiated test

Question 3

What are the five effects on the
aircraft systems when the
APU DISCH handle is pulled?

Answer 3

Fuel SOV closes, 
ignition shutoff, 
pneumatics shutoff, 
APU electrics isolated, 
arms fire bottles

Question 4

During an emergency evacuation,

how are the fire DISCH handles operated?

Answer 4

Press the release button
(manual override)
under the handle and while pressing
it, pull the associated handle

Question 5

What are the five effects on the
aircraft systems when the
L (R) engine DISCH handle
is pulled?

Answer 5

Fuel SOV closes, 
hydraulic SOV closes, 
bleed-air SOV closes, 
VFGs taken offline, 
arms fire bottles

Question 6

Is an unattended

APU operation permitted?

Answer 6

No. There is no provision for

automatic fire bottle discharge

Question 7

What is the maximum number
of smoke detectors the
FIDEEX can monitor?

Answer 7

Eight

Question 8

What type of extinguishing agent

is used in the fire bottles?

Answer 8

Halon

Question 9

Why is the engine RUN switch
selected OFF before pulling the
fire handle during an engine fire?

Answer 9

Because the immediate shutdown is via the engine RUN switch, not the fire handle

Question 10

When a fire test detects

a failure, what is the indication?

Answer 10

Appropriate EICAS

caution message displays

Question 11

How is fire suppression for the

baggage compartment, lavatories, and cabin closets provided?

Answer 11

Portable fire extinguishers

Question 12

Where are the fire detection

sensing elements located on the engine?

Answer 12

Accessory gearbox,
engine core,
fixed cowl

Question 13

What is the function of the

APU lock out release pin?

Answer 13

Prevents unintentional discharge
of the second extinguisher bottle
into the APU