EMB7 Fire Protection Flashcards
How many detector loops are there in the engine?
2
What happens when a engine fire is detected? (4)
Aural warning
Lights- fire handle and master warning
EICAS- fire warning light in respective ITT INDICATOR
EICAS warning msg ENG 1/2 fire is displayed
What happens when a engine fire is detected (4)
Aural warning
Lights- fire handle and master warning
EICAS- fire warning light in respective ITT INDICATOR
EICAS warning msg ENG 1/2 fire is displayed
What happens when you pull the fire handle ?(3)
Closes Engine fuel shutoff valve Engine hydraulic shutoff valve Engine bleed shutoff valve
How many fire extinguishing bottles are there?
- A and B
How do you discharge bottle A?
Pull fire handle and rotate counter clockwise
How do you discharge bottle B?
Pull fire handle and rotate clockwise
Describe APU fire protection system
Provides fire detection Extinguishing And continuous built in test
How is APU fire system powered detection/extinguishing?
Detection
MSU 1 ( DC ESS bus 1) and MAU3 ( DC ESS bus 2)
Extinguishing
DC ESS bus 2
How many detection loops in the APU?
2
What happens when you push the APU fire extinguisher button?
Discharges APU bottle
APU FADEC shuts down APU
Closes the APU fuel feed shutoff
Displayed EICAS MSG - APU fired btl disch
Will APU auto shutdown on ground because of fire?
Yes after 10 seconds
How many smoke detectors in forward cargo?
3
How many smoke detectors in aft cargo?
2
What happens with a cargo smoke indication?
All.
Aural warning
Lights- Master warning Associated cargo extinguishing compartment button illuminates
EICAS CRG AFT SMOKE CRG FWD SMOKE
Appropriate bottle is armed
If forward compartment —
air circulation fan turns off and forward ventilation outflow valve closes
How is the engine fire system powered?
Detection and Extinguishing
Detection- MAU1( DC ESS bus 1) And MAU3(DC ESS bus 2)
Extinguishing- hot batt bus 1 and 2
Which cargo compartment can hold live animals ?
Forward
How many bottles for the cargo departments?
- One high rate and one slow rate
Both located in center Avionics bay
How long will low rate cargo bottle provide protection?
60 minutes
How will the cargo bottles discharge?
In flight
High rate. Push button once
Low rate will discharge after 1 minute unless you push button sooner
How will cargo bottles discharge?
On ground
High rate. Push button
Low rate must push button again Not automatic
Can you discharge the cargo fire bottles without an EICAS msg?
Yes, by pushing the respective button twice
How is lav fire detection provided?
One smoke sensor in each ceiling
If smoke is detected in lav what are the indications?
Master warning light
EICAS msg LAV smoke
Alarm in the LAV and flashing red light
Flashing amber light on FA rainbow panel
Does the LAV have fire extinguishing?
Yes, In each trash bin
Automatic after a certain temp limit is reached
What does the fire detection system test button do?
Tests the engine fire detection APU fire detection And CRG smoke detection
What is a successful test of fire detection system?
EICAS msgs (5)
Eng fire 1 Eng fire 2 APU fire CRG aft smoke CRG fwd smoke
EICAS indications
Fire warning light in ITT illuminates
Forward cargo compartment fan turns off and outflow valve closes
What happens if you hold the fire detection button for 10 seconds?
APU shutdown
How is the engine fire system powered?
Detection and
Extinguishing
Detection- MAU1( DC ESS bus 1) And MAU3(DC ESS bus 2)
Extinguishing- hot batt bus 1 and 2
