Fire Detector System Flashcards
control amplifiers
3
Sensors
5
Detects
Infrared radiation caused by fire or extreme overheating
Process
Sensor detects infrared radiation and no blue light sends a signal to the associated control amplifier
False indications
Sunlight filtered through smoke or haze or at sunrise/sunset may trigger false fire indications
Fire detr position 1
3 firewall mounted detectors for all 3 engines
Fire detr position 2
2 engine deck-mounted detectors
10G crash
Both bottles will fire into each engine
Fire bottles
2 Shots filled with Halon and charged with nitrogen
T-handle function
Cuts off fuel supply
Determines which cad to shoot
Both No. 1 and APU T-handles actuated
Fire extinguisher sent to compartment for the last pulled T-handle
No. 2 T-handle pulled with either of the other t-handles
Fire extinguisher will shoot to No.2 regardless
No. 2 needs what for extinguisher to shoot
AC power
If no AC power what switch for No. 1 or APU
reserve
Sequencing
No.1 and APU - Main (FWD) Reserve (AFT bottle)
No.2 - Main (AFT) Reserve (FWD)