Engine Fire Detection/Protection Flashcards Preview

E-Jet EMB175 > Engine Fire Detection/Protection > Flashcards

Flashcards in Engine Fire Detection/Protection Deck (21):
1

Engine Fire Detection

- ESS powered
- 2 fire loops in each engine (gaseous-type)
- Both loops must detect an overheat to get a fire indication unless one loop is inop

2

How many bottles

- 2 fire bottles 1 shot per bottle
- Both shots can go in one engine or just one

3

Fire protection powered by

HOT BATT BUS powered

4

When the fire handle is pulled

- Fuel valve is closed
- Hydraulic valve is closed
- Bleed valve is closed

5

APU Fire detection

- ESS powered
- 2 fire loops (gaseous-type)
- Both loops must detect an overheat to get a fire indication unless one loop is inop

6

How many fire bottles does the APU have

- 1 fire bottle

7

APU fire sequence

- APU EMER STOP button RED light illuminates
- Memory item complete APU EMER STOP BUTTON PUSH IN (WHITE light illuminates and RED light extinguishes)
- APU FIRE EXTINGUISHER button illuminates
- In the event the memory item is NOT completed, the APU EXTINGUISHER button will illuminate after 60 seconds of having an APU fire indication

8

Smoke detection

- Each compartment has independent smoke detection system

9

How man smoke detectors

- 3 forward smoke detectors
- At least 2 must be in agreement in order to generate FWD CARGO warning / same as AFT CARGO
- After smoke is detected, air circulation fan automatically turns off and the ventilation outflow valve closes

10

Cargo compartment how many bottles

- 2 fire bottles
- Able to extinguish in either of the compartments

11

Smoke indication in flight

- Push button 1st time - high rate bottle fires then low rate bottle fires after 60 seconds

12

Smoke indication on ground

- Push button 1st time - high rate bottle fires and low rate bottle arms
- Push button 2nd time - low rate bottle fires

13

Smoke indication in flight

- Push button 1st time - high rate bottle arms
- Push button 2nd time - high rate bottle fires
- Push button 3rd time - low rate bottle fires (if not pushed will fire after 60 seconds)

14

No Smoke indication on ground

- Push button 1st time - high rate bottle arms
- Push button 2nd time - high rate bottle fires and low arms
- Push button 3rd time - low rate bottle fires
- The high-rate bottle will fire for a period of 60 seconds
- The low-rate bottle will fire for a period of 60 minutes

15

Lav detection

- 1 smoke detector in each lavatory

16

Nav fire protection

- 1 fire bottle in each waste container (forward and aft nav)
- Wax plug melts at a given temperature to discharge the bottle

17

8-7-2 Rule Overhead Panel 8 lights

8 lights
- 1 Fire handle 1
- 2 Fire handle 2
- 3 Cargo smoke (FWD) extinguisher button
- 4 Cargo smoke (AFT) extinguisher button
- 5 APU extinguisher button
- 6 APU EMER STOP (top half of button)
- Engine 1
- Engine 2

18

8-7-2 Rule Glareshield 2 lights

- 1 Master warning light (left)
- 2 Master warning light (right)

19

8-7-2 Rule 2 Aural indications

- 1 fire bell
- 2 Triple Chime

20

8-7-2 Rule EICAS message 7 lights

- 1 ENG 1 FIRE (CAS message)
- 2 ENG 2 FIRE (CAS message)
- 3 CARGO FWD SMOKE (CAS message)
- 4 CARGO AFT SMOKE (CAS message)
- 5 APU FIRE (CAS message)
- 6 FIRE (Engine 1 ITT gauge)
- 7 FIRE (Engine 2 ITT gauge)

21

What happens if you hold the fire test more than 10 seconds?

- If APU is running it will shut down.