Fire System Flashcards
1
Q
What happens if a fire loop senses a fault?
A
System shuts down that loop and uses the other loop normally
FIRE DET 1/2/3 or APU FAULT
2
Q
What happens if both fire loops sense faults?
A
FIRE DET 1/2/3 FAIL on EAD
3
Q
What happens if APU fire is sensed?
A
Shuts down APU
APU generator is deenergized
APU fuel valve closed
APU bleed valve closes
4
Q
What happens when engine fire handle is pulled?
A
Disconnects gen field Closes fuel shutoff valve Closes hydraulic shutoff valve Closes bleed PRV Arms the squibs
5
Q
What happens when Cabin Air switch is selected to OFF?
A
Auto- shuts down packs 2 & 3, closes cargo zone shutoff valve
Manual- closes cargo zone shutoff valve, must manually turn packs off per the QRH
