Fire Protection

Question 1

What is the electrical power source for the engine fire protection system?

Answer 1

Emergency Bus

Question 2

How many fire detection loops are installed in each engine compartment?

Answer 2

1-Single Loop System

Question 3

How many fire extinguisher bottles are installed?

Answer 3

1-Single Bottle

Question 4

Regarding design, how does the loop detect an overheat or fire condition?

Answer 4

The loop is filled with helium gas which expands when heated. The detector unit at the end of the sensing loop contains a diaphragm which snaps over-center at a set actuation pressure, completing the electrical circuit to the warning devices.

Question 5

What are the cockpit indications of fire test or actual engine fire condition?

Answer 5

-Master Warning: Red
-“FIRE, FIRE” (Aural Warning), Triple Chime
-FIRE (ITT): RED
-E1 FIRE, E2 FIRE (CAS): RED
-SHUTOFF 1 & 2 Buttons illuminated: RED

Question 6

What is the location of the engine fire extinguisher bottle?

Answer 6

Rear Fuselage

Question 7

What is the extinguishing agent type of the fire extinguisher bottle?

Answer 7

Halon 1301

Question 8

What actions occur when the SHUTTOFF 1 or 2 button is pushed?

Answer 8

-Pneumatic PRSOV closes
-Fuel Shutoff Valve closes
-Hydraulic Shutoff Valve closes
-Engine Fire Extinguisher bottle is armed
-SHUTOFF 1 or 2 button white strip illuminated

Question 9

What is the cockpit indication that the engine fire bottle has been discharged?

Answer 9

ENG FIREX DISCH (CAS)

Question 10

What type of baggage compartment fire detection is installed?

Answer 10

Smoke detector installed in baggage compartment ceiling-two photoelectric sensors, both must detect smoke to generate warning.

Question 11

What are the cockpit indications of baggage smoke test or actual baggage smoke condition?

Answer 11

-Master Warning: RED
-“FIRE, FIRE” (Aural Warning), Triple Chime
-BAG SMK (CAS): RED