skyblue CBT fire protection Flashcards
what does the overheat system in the RH engine provide?
an overheat warning if an overheat occurs in hotel mode
what are the cargo compartments have?
photoelectric smoke detectors
where is the lavatory fire extinguisher?
waste bin
where is the avionics compartment smoke detector?
between the avionics compartment and extract fan
where are the 3 halon fire extinguishers?
1 in the flight deck
2 in the aft cabin behind the last row of seats
where is the water fire extinguisher?
forward cabin crew station
what powers the 2 loops in each FIRE DETECTION CONTROL UNIT?
DC ESS BUS
When will the right nacelle overheat detection create a warning?
when RH nacelle temperature goes above 170C
if we get a RH OVHT during taxi due to a tailwind, what should we do?
incrase power slightly. if the warning persists after 30 seconds shut the engine down
if we get a RH OVHT what should we do?
power lever to idle
condition lever to feather and then fuel shutoff
how does each detection loop work?
nickel core coated with a salt based layer
salts changes resisatnce with temp changes meaning current through the nickel core increases
when will the FDCU trigger a fire warning?
a low resistance and high capacitance in both fire loops
what should we do if we get a loop fault?
deselect the affected loop
can the loop detect a fire with a break in it?
yes, but only with 1 break
what else can trigger a fire warning?
increase in compartment temperature due to something like a bleed leak
