Warning Systems Flashcards
Three different levels of communication alert?
- Low - requires timely awareness and response
- Medium - requiring immediate awareness and prompt response (accompanied with an aural chime)
- High - not used
How know when more than one page of EICAS messages?
Blue triangle page cue appears along the bottom
Can EICAS warning messages be cleared with Cancel/Recall switch?
No
How clear warning alerts?
Only by correcting the condition causing the warning
What does Cancel switch do on EICAS?
Clears all displayed caution and advisory alerts
Whats the only warning that doesn’t trigger the master warning?
Stall warning
How long does master warning light remain illuminated?
Until master warning switch pushed or condition ceases to exist
Pushing master warning switch silences the warning siren and fire bell except for what warnings? (4)
- landing configuration
- autopilot disconnect
- takeoff configuration
- overspeed warning
How does the engine start message inhibits work?
New caution and advisory messages are inhibited until one of following occurs:
- engine reaches idle rpm
- start is aborted
- 2 minutes elapsed from start switch engagement
How long is master warning and fire bells inhibited for on takeoff?
From nose gear extension to first of 400ft AGL or 20 seconds elapsed time
How long are master caution aural annunciations inhibited for on take off? And if aborted?
From 80kts until first of 400ft AGL or 20 seconds following nose gear extension (come on if abort and reduce below 75kts)
What is the only EICAS advisory message inhibited on take-off?
WINDSHEAR SYS
What are the only EICAS landing inhibits? When are the inhibited to/from?
Communication inhibits an begin at 800ft AGL on approach and stops at less than 75kts groundspeed or above 900ft on missed approach
What does shutdown inhibit generically do?
Stops nuisance aural messages and cautions during shutdown
What happens to the Master Caution lights and caution aural alert with both fuel control switched in cut off?
They are inhibited
When is altitude alerting inhibited inflight?
With all landing gear down and locked
Takeoff configuration warning is for what 4 items?
When is it activated?
- Flaps
- Parking Brake
- Spoilers
- Stabilizer
Activated on the ground and thrust is in the take off range on either engine
How long does take off config warning remain after thrust is retarted so pilots can see what caused it?
10 seconds
When does the landing configuration warning sound?
In flight, gear not locked down, and if any of the following exists;
- flaps in a landing position
- any thrust lever back at idle and below 800ft
How cancel the landing configuration warning? (2)
Correct the condition or or push gear override switch
What gives warning of impeding stall?
Left and right stick shakers
What happens to slats if in takeoff position during a stall warning?
Provided left hand hydraulic system is pressurised then they automatically deploy to landing slat configuration (automatically return once stall warning condition ceases)
When does the ALT light appear and disappear when approaching an altitude?
On at 900ft to go, off at 300ft to go
When does master caution activate when deviating from and altitude and when does it stop?
When deviating more than 300ft away from selected altitude and stops once back within 300ft or greater than 900ft away from it
