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CRJ900 Limitations, Systems > Fire Protection > Flashcards

Flashcards in Fire Protection Deck (21):
1

How many hand held extinguishers are on the plane

3 - halon = flight deck, front left storage bin, front closet
1 - water = aft storage bin

2

How is a fire reported in a two loop system

Both loops must detect a fire. If one fails the computer knows and operates off one loop

3

What type detectors exist in the lav and cargo areas

LAV = normal smoke detector
Cargo = lazier smoke detector

4

What happens after pushing the ENG FIRE PUSH

1. Arms squibs
2. Shuts off IDG
3. Closes PRSOV valve
4. Inhibits continuous ignition
5. Closes fuel, hydraulic, pneumatic SOVs

5

What is protected by the fire loops

1. APU
2. Engines
3. Leading edges

6

What's the protection I the main landing gear bay

A single loop fire detection system

7

What happens if smoke is detected in the lav

Automatic discharge of the halon bottle

8

How many system fire bottles are on the aircraft

1. 2 serve both engines
2. 2 cargo
3. 1 APU

9

What indications would you receive following an engine fire

1. Master warning, triple chime
2. Fire bell
3. Fire push switch light
4. L/R ENG FIRE warning

10

What's the difference between a FIRE FAIL caution
FIRE SYS FAULT caution
FIRE SYS FAULT status

1. FIRE FAIL caution = both loops have failed
2. FIRE SYS FAULT caution = communication between AIRINC and FIDEX system is not happening
3. FIRE SYS FAULT status = a single loop has failed

11

What bus is the engine fire push light on

DC emergency bus

12

Describe cargo bottle function

Both bottles blow but one is a fast release bottle and the other is a slow release over 60 minutes

13

Can you fight fire in both cargo compartments

No

14

Where are the cargo fire bottles located
PSM 10-20-13

Both are inside the right belly fairing

15

How is the lav fire extinguishing actuated
PSM 10-30-2

The end of each discharge nozzle is sealed with a heat sensitive capsule

16

What happens after pushing the FORWARD CARGO SMOKE PUSH switch light

Arms squibs

17

How many fire smoke detectors are located in the cargo compartment

3 in forward and 2 in aft

18

How many detectors must detect smoke in the cargo area in order to issue a cargo compartment smoke warning

2

19

During a fire what cancels the fire bell

Master warning switch light. It also cancels master warning and triple chime

20

What does an ENG BTL LO caution mean

Pressure in the bottle has dropped to a preset point through leakage or use

21

What happens after pressing the cargo BOTTLE ARMED PUSH TO DISCH switch light

Both bottles blow