Skyblue CBT Flight Warning System Flashcards
what does the FWS provide?
- Warnings
- cautions
- awareness of malfunctions, abnormal situations and flight envelope deviations
when a caution/warning occurs what will show on the EWD?
the problem and associated procedure
what does a cyan alert mean?
normal transient configuration
what does a green alert mean?
normal operation
what does a white alert mean?
system selected off
what components make up the FWS? (9)
- 2 modules, 1 in each of MFC 1B and 2B
- 2 core processing modules (CPM) 1 located in CAC 1 and 2
- 6 input and output modules, 3 in each CAC
- 2 switch modules, 1 in each CAC
- 2 EFIS control panels
- 2 master warnings
- 2 master cautions
- 1 emergency audio cancel switch
- 1 T/O config test switch
what is the FWS managed by?
2 Flight warning applications (FWA)
where are FWA 1+2 located?
in their respective CAC
What is the flight warning detection sequence?
Detection: Aural/visual alert
Identification: Alert message on EWD
Isolation: system panel
are local alerts independent of FWS?
Yes
what causes a level 3 warning?
- serious system failure
- unsafe config
- limits being exceeded
what causes a level 1 advisory?
loss of redundancy or system failure requiring crew monitoring
how does the crew control the EWD?
EFIS control panel
how do we activate a boxed procedure?
V push button on EFIS panel
what is the recall button used for?
to recall messages or scroll through messages on EWD
what does the CLR button on the EFIS control panel do?
clears EWD messages that can then be recalled
what level 3 warnings are inhibited during T/O?
engine oil and smoke
what removes the takeoff inhibitions?
landing gear unlocks during retraction or manually using the RCL button
how do we get a warning tone back after using the emergency audio cancel switch?
- MFC reset by cycling aircraft power
- MFC 1B+2B reset
- RCL button
- T/O config button
what emergency aural alerts can’t be cancelled?
- gear not down
- overspeed clacker
- stall warning cricket
- pitch trim whooler
- A/P disconnect
what does the T/O config test attempt to verify?
- T/O flaps set
- pitch trim in green range
- aileron lock disengaged
- PWR management switch set for takeoff
- TLU in low speed config
on completion of T/O config test what does a POWER MGT message mean?
power management rotary selector not in T/O
on completion of T/O config test what does a CONFIG FLT CTRL message mean?
- TLU not in low speed
- disagreement of aileron lock position
- flaps not set for T/O
- pitch trim not in green
what is not monitored by T/O config test?
Park brake
what will we lose if we have an MFC 1B AND MFC 2B fault?
- no level 2 on EWB (overhead panel only)
- config, eng oil, prop break level 3 inhibited
- no master warning
- no CRC
when will the pitch trim whooler sound?
trim in motion for more than 1 second
what happens when the MFC senses a stall situation?
chirp and stick shaker
what happens when the MFC senses an excessive AOA?
chirp and stick pusher
when is the stick pusher available?
when any 2 MFC’s are opeerational
what feeds info to the MFC regarding AOA?
AOA sensors
what 3 factors influence stall warning?
- power setting
- flap config
- horns push button position
when does normal stall warning occur when not in icing?
10.9 degrees AOA
flap 30: 9.9 high power, 10.4 low power
when will stall warning occur with AOA icing button illuminated and horns buttons pushed in?
flap 0: 8 degrees
flap 15: 8.4 degrees
flap 30: 7.7 degrees
at what aoa will the stick pusher be triggered at high power?
13.4 degrees
flap 15: 14.1 degrees
flap 30: 12.8 degrees
at what aoa will the stick pusher be triggered at low power?
13.4 degrees
flap 15: 14.1 degrees
flap 30: 14.3 degrees
at what aoa will the stick pusher be triggered during takeoff?
10.9 degrees
at what aoa will the stick pusher be triggered en route?
10.6 degrees
15: 10.9 degrees
30: 10.8 degrees
when is the stick pusher inhibited?
10 seconds after takeoff
within 500ft of the ground during descent with the radalt functioning
what messages can be cleared using the CLR button?
LVL 1 and 2
what is the only way to clear a local alert?
system restoration
what MFCs are required for the stall warning?
MFC 1B and or 2B
at what AOA will the stall warning activate with flap 15 and the icing light illuminated?
8.4 degrees
what is the autofeather pump manual controller powered by the DC SVCE BUS used for
to perform tests when on the ground
