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CRJ-900 Limitations > Fire Protection > Flashcards

Flashcards in Fire Protection Deck (19):
1

How many fire detection loops are installed on each engine

Two, dual loops mounted in parallel

2

How many firex bottles are available for an engine fire

Two

3

What type of Halon is in the engine firex bottles

Halon 1301 pressurized with dry nitrogen

4

How is an engine fire detected by the crew

Appropriate ENG Fire push switch light illuminates, fire bell sounds, and an EICAS warning message

5

What occurs when the ENG Fire Push switch light is pushed

Fuel SOV closes, HYD SOV closes, bleed air SOV close, generator is de-energized and the appropriate squibs are armed

6

Can we blow both bottles into one engine if necessary

Yes

7

How many fire detection loops are inside the APU containment case

Two, dual loops mounted in parallel

8

How is an in-flight APU fire detected by the crew

APU Fire push switch light illuminates, fire bell sounds, and an APU Fire warning message on EICAS

9

How many firex bottles are available for an APU fire

One

10

What occurs during an unattended APU fire on the ground

The APU ECU shuts down the APU, 5 seconds later the APU bottle will discharge automatically

11

How many smoke detectors are there in the aft cargo compartment

Two

12

How many smoke detectors are there in the fwd cargo compartment

Three

13

What are the flight deck indications of cargo smoke

Triple chime master warning flashers, smoke aural, smoke aft cargo warning message, or smoke fwd cargo warning message, either fwd or aft cargo smoke push switch lights illuminate

14

How many firex bottles are there for cargo smoke

Two, one is a slow metered standard bottle that Gould last approximately 60 minutes and the other is a quick discharge bottle

15

How many smoke detectors are located in the lavatories

One in the fwd and one in the aft

16

What indication do we have for smoke in a lavatory

Triple chime, master warning flashers, smoke fwd lav or smoke aft lav warning message

17

What protection do we have for a lavatory waste compartment fire

A firex bottle with heat sensitive capsules that will melt to discharge Halon 1301 directly into the waste compartment

18

What indication will we get with a waste compartment fire

None, unless it generates enough smoke to set off a smoke detector

19

Were is a single loop heat detection

Main landing gear well's