Navigation Flashcards
What information may be available if the IR Rotary Selectors are set to ATT?
- IR mode supplying only attitude and heading information, if the system loses its ability to navigate.
- The heading must be entered through the CDU keyboard and has to be reset frequently (10min).
What are the 3 occasions when the ALIGN light will flash?
- ALIGN fault
- No present position entry after 10min
- Different between position at shutdown and entered position exceeds 1 degree of latitude or longitude
- If the aircraft moves during alignment (windy day).
When does the ON BAT light illuminate?
Comes on amber when one or more IRs is supplied only by the A/C battery. It also comes on for a few seconds at the beginning of the alignment, but not for a fast realignment.
What should NOT be tested during APU start?
Compass, because of the location of the APU power on contractor in the cockpit the PAU start sequence may disturb the compass reading.
When the ILS is tuned on an RMP, what information is NOT available?
When the flight crew uses an RMP t turn an ILS/DME, the PFDs do not display the DME distance.
If both FMGS fail, how are navaids tuned?
- RMP in the NAV backup mode, the crew can select radio communication systems as normal
- Setting on RMP to NAV backup mode removes navaids tuning from both FMGCs.
Which NAVAIDS can be tuned from RMP1 & RMP2 and RMP3?
CAPT RMP: VOR1, ADF1
F/O RMP: VOR2, ADF2
Either RMP: both ILS
RMP3: not used for navaids tuning
What happens to GPWS warnings if the loudspeakers are turned off?
The audio volume of GPWS aural warning or cautions is not controlled by the loudspeaker volume knobs.
When will TERR ON ND automatically switch on?
If an alert is generated (caution or warning) and TERR p/b switch ON ND is not selected, the terrain and the obstacles are automatically displayed, and the ON light of the TERRN p/b switch ON ND comes on.
If TERR ON ND is indicating ON, what happens to the wether radar?
Weather radar image not displayed.
What produes the information on the ND when using EGPWS?
TAD
How is the information displayed in order to prevent confusion with weather radar?
- The weather radar TILT is replaced by a blue TERR and the terrain display sweeps form the centre outward to both ND sides.
- To differentiate between the terrain and the weather display, the terrain display sweeps form the centre outward to both sides of the ND.
When should LDG FLAP 3 be selected ON?
Flap mode is inhibited when flaps config 3 is selected, in this case, LDG MEMO displays “flaps 3” instead of “config full”
When should FLAP MODE be selected OFF?
Flap mode (too low flaps mode 4) is inhibited, to avoid nuisance warning in case of landing with flaps setting reduced).
If the TERR function of EGPWS fails, or is selected OFF, what happens to GPWS?
Inhibits the TAD and TCF modes, and does not affect the basic GPWS mode 1-5. If OFF is selected the ECAM caution NAV GPWS TERR DET FAULT is displayed.
