Fire and Overheat Protection Flashcards
How is fire and overheat protection provided for the cargo compartment?
Two smoke detectors in the cargo bay. (at least one needs to detect)
automatically cargo compartment fan shut off, recirculation SOV closes and exhaust SOV closes
How many fire detection loops are used with the APU?
two
How many APU fire bottles are on the CL-65?
one
How many squibs on APU fire bottle?
two
How many fire loops are on the engine?
two on each engine
What part of the engine has fire detection and protection and what part has detection only?
fire detect. & protection: engine nacelle
fire detect.: jetpipe and pylon
How many engine fire bottles are on the CL-65?
two
How many bottles are available to fight an engine fire?
two
What happens when an engine fire push switch is selected?
- squibs on both FIREX bottles are armed
- fuel feed SOV closes
- bleed air SOV closes (10th and 14th)
- hydraulic SOV closes
- engine driven generator electrically disconnected (de-energize)
- ignitors are disable
Is there fire extinguishing capability available for the engine pylon?
no
What is the very first thing you look for prior to completing an APU fire test?
No “APU FIRE FAIL” caution message on ED1.
do not operate the APU, as the APU Fire Bottle will discharge when the loop detecting the false fire is selected.
How many fire/overheat loops are in the engine pylon?
two
What would an ENG FIRE FAIL message indicate if you were completing the Fire Protection test with all loops in the both position?
short on the loop A or B
one of loop is faulty
How many overheat detection loops are in the wheel bin?
one
How do we have fire protection in the lavotory?
One small fire extinguisher in waste bin
melting defuse able cap
