EFIS Flashcards
Which DU is the default for the EICAS?
DU2=MFD1
what controls each PFD?
the respective Primary flight display control panel (PFDCP)
where are course and heading controlled from?
course/heading control panel (CHP)
where are altitude and speed selections controlled from?
reference select panel (RSP)
what is the only way to remove the EICAS from the instrument panel?
DISPLAY REVERT button on the PFDCP
if only 2 DU’s are working, what will be displayed?
one will show the combined PFD map, the other will show EICAS
If only 2 DU are working, when is the only time the EICAS won’t be shown?
when traffic is announced by the TCAS system and the TFC button on the MFDCP is pressed
what protects the EFIS system?
essential bus and bus 2
what are the 3 kinds of built in test?
- power-up BIT
- continuous BIT
- initiated BIT
what will. a CBIT do with faults it detects?
it will display safety critical faults and log non critical faults to be reported at the next scheduled maintenance check
when will an IBIT be disabled?
in flight
what will pushing the test button on the PFD display?
all possible information and warning fields of the display and red crosses over the airspeed and altitude fields
what will pushing the test button on the MFD display?
shows the existing EICAS colours in 4 boxes
what does pushing the test and - buttons simultaneously on the MFD used as EICAS display?
EICAS text format page
what will show on the EICAS text format page if EIU units are different?
MISCOMPARE triangle
what does it mean if the rate of turn indicator needle is parked at the outermost marking?
the turn is exceeding 4 degrees per second
when will airspeed indications appear in red?
when overspeeding (223ias)
when will each v-speeds discrete output become active?
when current speed is below the v speed
what does the black and white low speed awareness band cover when V2 is not set?
top: Vswarn
bottom: tape limit
when will the low speed awareness warning transition to climb-cruise-descent mode?
V2+50
in climb-cruise-descent what does the low speed awareness band cover?
top: Vswarn (70)
bottom: tape limit
when do the V speed bugs declutter?
V2+50
how is Vswarn OFFSET defined?
9 knots
when will the landing mode of low speed awareness be enabled?
when aircraft has slowed to Vswarn+Vswarn offset
what does the slow speed band cover in the landing mode?
top: configurable percentage of V2
bottom: tape limit
what can the slow speed band never be adjusted above?
configured value of Vswarn used in the climb-cruise-descent mode of operation
when will no mach value display?
below 0.2m
when is the FMS heading bug displayed?
when FMS is the primary nav source and in FMS heading mode
when will the FMS and selected heading bugs synchronise?
when they are within 2 degrees of each other for longer than 4 seconds
what speeds can be bugged?
v1, v2, v2 and Vref
what will the Vsi show if Vs exceeds 6000fpm?
will park at the 6000fpm mark and numerical indication will continue to indicate to 9999fpm
what is the altitude tape display range?
95,000 to -2000ft
how do we set the baro in the barometric setting window?
baro set minimus knob on PFDCP
how can we set standard using PFDCP?
push the PUSH STD knob for 2 seconds
when will the barber pole RADALT indication disappear from the speed tape?
more than 1000ft agl
when will the RADALT numerical indication display?
when RADALT is in range, typically 2500ft
how do we set barometric minimums?
press RA/DA twice and turn the knob
when setting barometric minima what will a push on the PUSH SEL button do?
allow changing of the minima in single ft steps
when will the DA numerals change to amber?
when radio altitude is equal to or less than the selected DA. (returning to white upon landing or go around)
how do we set RA minimums?
by pressing RA/DA once and turning the knob
can RA and DA minimums be shown simultaneously?
no
what kind of heading is shown?
magnetic heading
what does the arrow on the heading bug show?
the shortest direction to selected heading when bug is not on selected heading
what indicates to us the FD is engaged?
red boxed FD on the PFD, but commands are not transferred to the AP if the computer has detected an internal fault.
where are the lateral mode annunciators on the PFD?
upper left corner of the display
where are the vertical mode annunciators on the PFD?
upper right corner of the display
what colours are the lateral and vertical annunciators?
magenta when engaged white when armed
what does the ATT warning mean?
AHRS has failed or provides no attitude information
what does the TRIM warning mean?
autopilot trim is not able to reach demanded position
what does the FD warning mean?
FD/autopilot computer detects an internal fault
what does the XBUS caution mean?
data between PFD 1 and 2 is invalid or data between MFD 1 and 2 is invalid
what does the DCU caution mean?
data bus of the DCU to the concerned DU has failed or is not powered
what does the OBUS caution mean?
data between pfd/mfd 1 is invalid or data between pfd/mfd 2 is invalid
when will we get an ATT COMP caution?
pitch and roll condition exists for more than 1 second
when will we get a PITCH COMP caution?
condition exists for greater than 1 second
when will we get a HDG COMP caution?
6 degrees+ 1/2 roll angle value exists for greater than 1 second
when will we get a ROLL COMP caution?
condition exists for greater than 1 second
when will we get a RALT COMP caution?
altitude difference of more than 40ft exists for more than 1 second
when will we get an ALT COMP caution?
baro altitude difference of greater than 300ft exists for more than 5 seconds
when will we get an ASPD COMP caution?
airspeed difference of more than 10 knots exists for 5 seconds or more
how do we acknowledge COMP cautions?
ALERT CANCEL button on RSP
what is the RANGE/OPTIONS knob used for?
selecting PFD menus, formats and display options.
also controls range of the applicable display
what are the 7 display formats?
- NORMAL
- COMP
- 360 MAP
- COMP 360 HSI
- COMP ARC MAP
- COMP ARC HSI
what is the only mode that TCAS can be selected in?
map view mode
what is the only mode in which WX radar and TAWS can be set up on the MFD?
map view mode
what is the transition level set to?
18000ft
what will the display revert button do?
will force the onside MFD to display a 360 degree HSI presentation
pushing it a second time will return the MFD to normal MFD function
what does the NAV/BRG source knob do?
allows the pilot to select and change the primary and secondary navigation and bearing sources
what will the ATT/HDG revert button do?
selects the cross side source of the AHRS.
what does the ADC revert button do?
allows selection of the cross side ADC
what does the SRC XFER button do?
used to swap primary and secondary navigation sources
what does the WX button on the captains PFDCP allow?
selection of weather radar display on PFD1 with map view selected
what does the TFC button on the captains side allow?
allows selection of the TCAS on PFD1 with map view selected
toggles on and off
when will we get an altitude deviation chime?
when we deviate more than 200ft from selected altitude
how do we disable a speed target setting?
push the PUSH SEL button to place the desired value in the selection window and hold the PUSH SEL until OFF is displayed in the selection window
what is the range options knob on the MFDCP used for?
controlling map ranges on the MFD and activating menus for selection of alternate display formats
what does pushing the PUSH SEL button in the RANGE/OPTION knob do?
activates the drop down menu with magenta cursor
what does the TFC button on the MFD control panel do?
allows selection of a TCAS display
when can the TCAS display be selected?
only with a map view selected and can be overlayed over Wx displays
what does the TERR button on the MFDCP do?
selects a TAWS display on the corresponding MFD
what will the WX button on the MFD do?
allows selection of the weather radar on the respective MFD.
what are the 2 functions of the Wx tilt/mode knob?
- changing the Wx radar antenna tilt
- selecting modes of the Wx radar
different modes are selected by pushing the PUSH SELECT button
what is the range of wx radar tilt?
15 degrees up 15 degrees down
what are the 6 WX radar modes?
- STBY
- RDR OFF
- WX
- GND MAP
- WXA
- TEST
what colour will info be displayed in inside the flight plan status data block if no FMS is selected as primary nav source?
grey
what does the TIME/TEMP data block display?
- UTC
- ETA
- TAT/SAT
- ISA temp deviation
where is TIME/TEMP data block temperature information sourced from?
air data computer
what does the INTEG annunciator on the MFD mean?
GPS integrity alert has been generated by the FMS
what does the MSG annunciator on the MFD mean?
FMS message
what does the POS annunciator on the MFD mean?
FMS position uncertain alert has been generated
what will the TAS and/or GS indicate if ADC data is invalid?
white dashes
what is the primary bearing pointer on the MFD displaying if green?
on-side SRN
what is the primary bearing pointer displaying if white?
on-side LRN
what are the 4 taws warnings?
- PULL UP
- TERRAIN
- GLIDESLOPE
- DON’T SINK
what will a TCAS alert cause the MFD to display if TCAS isn’t selected as a display?
TCAS with range ring set to 5nm
when is the only time TCAS selection with one MFD is possible?
resolution advisory
what screen shows the EICAS as default?
MFD 1
how many CAS messages can be displayed at the same time?
9
what are the 3 levels of CAS?
warning, caution and status
what does the DCU do?
collects navigational and aircraft data and processes it to fulfil the requirement for digital data lines
what is the main task of the DCU?
to process and pass the data for the FDR
what processes flight director commands?
the DCU which then passes them to the autopilot
when will we get an amber MAINTENANCE SWITCH annunciation?
when the weight on wheels logic switch on the RH avionics rack is set to GEAR UP or INV
what does a cyan CAWS power fail annunciation mean?
single power failure of the CAWS computer
when will we get a cyan VHF1 HOT ACTIVE message?
with both avionics and VHF1 HOT switches on
what does an amber cross over the CAS message field indicate?
total failure of CAWS computer
what must we ensure we do when we remove headsets?
SPKR LED on the ACU is on, in order to be able to listen to acoustical warnings
what annunciations are not mutable?
- TCAS fail
- TAWS fail
- stall warning
- overspeed
- altitude alert
what is the FLAP OVRD button on the annunciator panel for?
simulates flaps to the TAWS when not in a land flap config
what is the LRN button for?
provided to select long range navigation for the autopilot operation
where are the OAT sensors?
behind the nosewheel
what do the 2 EIU’s do?
collect all engine data and some system data and to transfer it to the EICAS
is there an automatic EIU switchover in the event of a failure?
no, we must switch over manually
how many BUS failure annunciations can be shown at once?
1
when will we get an EIU BUS FAIL message?
if the EIU bus fails to the MFD not showing EICAS
