8 fire protection Flashcards
fire warning sw in up position (pulled) 6
arm one squib per engine;
allows eng fire sw to rotate;
close fuel, hyd shutoff, eng bleed valves;
disable reverse thrust;
trip generator control relay and breaker;
deactivate eng driven hyd pump low press light
apu fire sw pulled 7
backup for auto shutdown; close fuel shutoff valve; close apu bleed valve; trip generator and breaker; close apu inlet door arm squib allow fire sw to rotate
fault on fire warning panel
if overheat detec sw in normal both loops failed
if overheat detec sw in a or b, selected loop is failed
MASTER CAUTION DO NOT ILUMINATE
apu detec inop
apu loop (only one installed) failed, master caution illuminate
cargo fire detector fault
one or more of selected loop failed
cargo fire disch sw
if system is armed, discharge the first bottle after 60min will discharge the other
eng overheat,
eng and apu fire detection is powered by
battery bus
wheel well detection is powered by
ac transfer 2 or battery bus
cargo smoke detection is powered by
dc bus 1 and 2
cargo fire suppression is powered by
hot bat bus
how many detectors on cargo compartments
4 front 6 back
eng fire and apu fire extinguishing is powered by
hot battery bus