Fire Protection Flashcards
How is engine fire detection system powered?
By the BAT BUS
How is engine fire exstinghuiser System powered
From hot bat bus
What does pulling an Engine fire switch up do?
Closed engine fuel shutoff and spar fuel shutoff Valves
Closes ENG bleed air valve
Trips generator control relay and breaker
Closes hydraulic fluid shutoff valve
Disables thrust rev
Allows eng fire switch to be Rotated
Arms discharge squib
How is Apu fire detection and suppresion powered
Bat bus and hot bat bus respectively
How many loops does the APU have
1
What does pulling the Apu fire switch do
Backup for auto shutdown
Deactivates fuel solenoid and closes fuel shutoff valve
Closes APU bleed air valve
Closes APU inlet door
Trips APU generator control relay and breaker
Allows APU fire switch to be rotated
Arms squib
How is main Wheel well fire detection powered
AC TRX BUS 2 and BAT BUS
On what wheels does Wheel well fire indicate
Main gear
How is Cargo smoke det powered
DC BUS 1 and DC BUS 2
How is cargo suppresion powered
Hot bat bus
How many mins of cargo fire supression
180+15
What does pushing of master fire warn do
Extinghuises fire warn lights
Silenes fire warn Bell
Silences remote Apu fire warning horn
Resets system for additional Warnings
How is the lavatory fire extinghuisher activated?
Upon heat, however, the detection system detects smoke
