Navigation Flashcards
How many ADIRUs are there?
3
How many probes are there?
- 6 static
- 3 pitot
- 3 AOA
- 2 TAT
What is the purpose of an Air Data Module?
Converts pneumatic signals to digital
What is the TAT input to ADIRU 3?
CPT TAT probe
How many GPS receivers are there?
- Integrated in the MMRs.
Which MMR provide GPS signal to ADIRU 3?
MMR 1
Which ADIRU provides inputs to the DDRMI?
ADIRU 1 and 3
What is the purpose of the ATT HDG switch on the switching panel?
Provides alternate IR data from ADIRU 3 to CPT PFD/ND and DDRMI or to F/O PFD/ND.
What is the purpose of the AIR DATA switch on the switching panel?
Provides alternate air data from ADIRU 3 to CPT PFD/ND I or to F/O PFD/ND.
What happens when you switch off the ADR pushbutton?
Disconnects the air data section of the respective ADIRU
What is the meaning of a flashing IR FAULT light?
Attitude and heading of the IR can be recovered.
What is the meaning of an illuminated ON BAT light on the ADIRU panel?
- One or more ADIRUs on battery power
- Momentary at beginning of alignment during battery test.
How many VOR receivers are installed?
2
What is the meaning of an “R” symbol on the ND next to the VOR information?
VOR is manually tuned through the Radio Management Panel.
What color are VOR needles on the ND?
White
Under normal operations, which ND will display ILS 1 information?
F/O ND
When is the ILS course dagger shown on the ND?
When the LS button is pressed
Can all navigation receivers be tuned by one FMGC?
Not under normal operations, but they can if one FMGC is failed.
How is standby nav activated?
By pressing STBY NAV on BOTH RMPs
Is the ILS information displayed on the PFD during standby navigation?
No
What transponder data will be transmitted on the ground with the selector in AUTO?
Mode S only
How is the ADIRU source to the transponder selected?
With the Air Data switch on the switching panel.
Will failure of one Radio Altimeter remove RA indications from that respective PFD?
No. Other RA information will display on both PFDs.
When does the RA display turn amber?
- Below 400’ (with no DH)
- Below DH+100’ (with DH)
What is the significance of a dual Radio Altimeter failure?
- Direct law when the gear is extended
- CAT 1 ILS only, APPR pushbutton not functional
How many WX radar systems and antennas are there?
2 systems but only one antenna
What is the display range for turbulence on the WX display?
40 nm
Does GPWS or Stall warning have priority?
Stall warning or W/S will inhibit GPWS
What is the EGPWS caution and warning envelope?
Caution - 60 seconds
Warning - 30 seconds
How is terrain on ND greater than 500’ below the aircraft displayed?
Various green colors
What is the relative altitude of yellow terrain on ND?
From 500’ below to 2000’ above aircraft
How is terrain on ND greater than 2000’ above the aircraft displayed?
Red
Will EGPWS caution and warnings display terrain on ND with the switch OFF?
Yes
How many TCAS systems are installed?
Single computer but two antennas
How many TCAS threats will be displayed on ND maximum?
8
What is the Closest Point of Approach that will trigger a TCAS RA?
25 seconds
What is the Closest Point of Approach that will trigger a TCAS TA?
40 seconds
