Fire Protection

Question 1

What happens when FIRE WARNING TEST is connducted using BATTERY POWER only

Answer 1

All indications will be the same except F/O MASTER WARNING LIGHT will not illuminate and the cyan PODS TEST PASS alert message on EAD will not illuminate

Question 2

If APU FIRE WARNING TEST is conducted on battery power what must be accomplished after start

Answer 2

Test must be accomplished again to make sure everything is working properly

Question 3

What indications do you get on a engine fire (5)

Answer 3

1. L/R ENG FIRE hanlde light illuminates
2. FUEL switch light illuminates
3. Aural/Vocal warning sounds
4. ENGINE L/R alerts on EAD
   MASTER WARNING lights flash

Question 4

What indications do you get on APU FIRE (5)

Answer 4

1. APU FIRE alert on EAD
2. APU automatically shuts down
3. MASTER WARNING lights flash
4. FIRE light on external APU ground control panel illuminates
5. Aural/Vocal warnings sound (Flight Deck-3 cycles, and horn will continue until fire is extinguished)

Question 5

CARGO SMOKE or FIRE Indications (8)

Answer 5

1. MASTER WARING lights
2. MASTER CAUTION lights
3. CARGO SMOKE voice warning from CAWS
4. CARGO SMOKE FWD OR AFT level 3 EAD and AIR SD
5. Land at nearest suitable airport - displayed on consequence page
6. DISCHARGE CARGO AGENT - Displayed on EAD and AIR SD
7. AIR SD will display RED triangles
8. AFT/FWD CARGO SMOKE AGENT DISH switchlight will flash “PUSH”

Question 6

What happens aprox after 1 min of the cargo bottle discharged

Answer 6

The amber AFT/FWD CARGO SMOKE AGENT DISCH “PUSH” switchlight will extinguish and be replaced by an amber “LOW” light indicating the first halon bottle has discharged. A CARGO AGENT 1 LO alert will also be displayed on the EAD.

Question 7

What happens approximately 6 mins after the CARGO AGENT is blown

Answer 7

similar alerts will direct the second Halon Bottle into the appropriate cargo compartment. The second bottle discharges at a slower rate. CARGO AGENT 2 LO alert will illuminate after 2 hours

Question 8

How do you know if the cargo smoke agent is discharged

Answer 8

Red triangles displayed on the AIR synoptic are cargo smoke detectors

Question 9

LAVATORY FIRE indications (3)

Answer 9

1. MASTER CAUTION lights Illuminate
2. LAVATORY SMOKE alert on EAD
3. HI-LO chime on the PA

Question 10

Engine/APU LOOP switch operation on the AFT overhead panel
BOTH
A/B

Answer 10

BOTH - (Normal Position) - minimizes false warnings since both loops have detect a fire or overheat position before activating a fire warning

A/B - Used for dispatch if one fire loop is inoperative. Fire warning will still occur is a fire is detected in the selected loop.

Question 11

What does the fire detection system consist of……..

Answer 11

Two independent, heat-sensitive detector loops located in each engine and the APU. Each loop provides both fire and overheat detection.

Question 12

Engine Fire Extinguishing Controls and Indications
FIRE TEST
AGENT 1/2 LOW
FAULT TEST
ENGINE FIRE HANDLE

Answer 12

FIRE TEST - Test both A and B loops

AGENT 1/2 LOW - Illuminated - Respective agent has been discharged

FAULT TEST - Maintenance use only

ENGINE FIRE HANDLE - light illuminated associated engine fire is detected or test in progress

Question 13

What happens when you pull the ENGINE FIRE HANDLE

Answer 13

PULL (FULLY EXTENDED) - Shuts off associated engine….
FUEL
HYDRAULIC
GENERATOR
AURAL/VOCAL warning if the master caution lights havent been pushed

Question 14

APU FIRE EXTINGUISHING Controls and Indications….

APU FIRE Light
AGENT 1/2 LOW Light
APU SHUT OFF Switch
FIRE AGENT DISCHARGE 1/2 switch

Answer 14

APU FIRE Light - Illuminated if a fire is detected

AGENT 1/2 LOW Light - illuminated if the respective agent is discharged

APU SHUT OFF Switch - NORM for normal operations, SHUT OFF -shuts down APU and arms extinguishers

FIRE AGENT DISCHARGE 1/2 switch - Normal - Guarded switch, normal position. DISCHARGE - DISCHARGES RESPECTIVE AGENT INTO APU compartment.

Question 15

SWITCH POSITIONS

APU FIRE CONT Switch Norm and off
APU FIRE AGENT Switch (NO 1/NO 2) off and disch

Answer 15

APU FIRE CONT Switch
NORM - Normal Position
OFF and AGENT ARM - Immediately shuts down APU and arms extinguishers

APU FIRE AGENT SWITCH (NO 1/NO 2)
OFF - Normal Position
DISCH 0 Discharges selected agent into APU compartment

Question 16

Cargo smoke detection system switches
CARGO SMOKE FWD/AFT SWITCH (2)
SINGLE
NORM

AFT/FWD CARGO SMOKE AGENT DISCH switchlight (4)
	PUSH
	LOW

Answer 16

CARGO SMOKE FWD/AFT SWITCH (2)
SINGLE- Selects single smoke detection system
NORM- Selects normal dual smoke detection system

AFT/FWD CARGO SMOKE AGENT DISCH switchlight (4)
	PUSH - Flashes Amber to indicate fire/smoke detected. Push to discharge bottle, 		changes light from flashing to steady. Extinguishes when low Light illuminates
	LOW- Illuminates when amber after agent discharged. Push again to extinguish

Question 17

What does the CARGO SMOKE TEST BUTTON DO and when can you perform after adding power

Answer 17

Test the system

Disabled for 6 mins after establishing power

Question 18

What does the ENG and APU fire extinguishing system consist of….

Answer 18

2 fire extinguisher agent containers and associated AGENT LOW lights

Question 19

How is the ENG and APU fire agents distributed…..

Answer 19

Each fire bottle has seperate discharge heads and distribution lines to each engine and the APU

Question 20

How is a cargo fire detected…..

Answer 20

Multiple photoelectric smoke detectors mounted in recessed pans in each cargo compartment ceiling

Question 21

How is a fire supressed in the cargo compartment…..

Answer 21

Two Halon fire extinguishing agent bottle connected to both and aft cargo compartments

Question 22

How long can fire be suppressed in the cargo comparment…..

Answer 22

80 minutes

Question 23

What happens if the CARGO SMOKE DET SYS is selected to single

Answer 23

A single postion CARGO SMOKE DET SYS panel will allow one detector to activate the alarm