Flight Instruments, Displays

Question 1

What do the large red arrowheads on the PFD indicate?

Answer 1

That the
attitude has become excessive and show the direction to move the nose in order to reduce
it. (Beyond 30°)

Question 2

What are the pitch and roll protection limits indicated by the green = signs?

Answer 2

• On the roll scale to mark the bank angle protection availability of up to 67° bank
• On the pitch scale at 15° nose down or 30° nose up to mark the pitch limits

Question 3

When would the sideslip index change from yellow to blue?

Answer 3

In case of engine failure at takeoff or go around, the sideslip index changes from yellow to blue. In this case, the sideslip index is called the β (beta) target.

Question 4

What does the yellow speed trend pointer on the airspeed display indicate?

Answer 4

The tip indicates the

speed the aircraft will reach in 10 seconds if its acceleration remains constant.

Question 5

What is the difference between the magenta and blue target airspeeds?

Answer 5

(magenta) computed by FMGC in managed speed mode

(blue) manually entered on the FCU in selected speed mode

Question 6

What is VLS and how is it displayed?

Answer 6

Minimum Selectable Speed (VLS) lowest selectable speed providing an appropriate
margin to the stall speed.

Question 7

What speed does VMAX represent and how is it displayed?

Answer 7

It is the lowest of the following:
• VMO or the speed corresponding to MMO
• VLE
• VFE

Question 8

What is Green Dot speed?

Answer 8

(engine-out operating speed in clean configuration)
appears when the aircraft is flying in the clean configuration. It represents the speed
corresponding to the best lift-to-drag ratio.

Question 9

What would be indicated if the altitude window changed from yellow to amber?

Answer 9

If the aircraft deviates from the FCU-selected altitude or flight level by 250 ft.

Question 10

When is altitude alerting and the C chord automatically inhibited in flight?

Answer 10

The altitude alert is inhibited:
• when the slats are out with the landing gear selected down,
• in approach after the aircraft captures the glideslope, or
• when the landing gear is locked down
NOTE: The C chord is inhibited when approaching a preselected altitude or flight level when the AP is ON.

Question 11

What does it mean when the altitude digits change from green to amber on the PFD?

Answer 11

Approaching minimums is displayed on the altitude scale by the green altitude indication changing to amber.

Question 12

When is Radio Height displayed on the PFD?

Answer 12

value appears when the aircraft is lower than 2500 ft

Question 13

What would a flashing amber ILS indicate on the bottom of the PFD?

Answer 13

flashes amber when the APPR mode is armed but the LS pb has not been selected

Question 14

Top of Descent and Continue Descent arrows are displayed in blue or white on the ND. What is the difference?

Answer 14

white if DES is not armed, and blue if DES is armed.

Question 15

What color does each altitude constraint circle on the ND represent?

Answer 15

is a circle set around the
constrained waypoint. It is displayed in:
• Magenta when the ALT CSTR is predicted to be met
• Amber when the ALT CSTR is predicted to be missed
• White when the ALT CSTR is not taken into account by the FMGS and NAV mode is engaged

Question 16

If mode range data fails, what should you expect to see on the ND?

Answer 16

If the mode or the range data fails, the default selection is the ROSE NAV mode and 80 nm range.

Question 17

What are the 3 levels of ECAM Failure Mode Notifications?

Answer 17

Level 3 Red Warning (Continuous Repetitive Chime)
Level 2 Amber Caution (Single Chime)
Level 1 Amber Caution (No Chime)

Question 18

If simultaneous failures occur, how will they be presented to the crew on the ECAM?

Answer 18

A level 3 warning has priority over a level 2 caution, which has priority over a level 1 caution.

Question 19

What categories of failures are presented to the crew on the EWD?

Answer 19

Independent
Primary
Secondary

Question 20

What indication does the EWD provide for secondary failures?

Answer 20

putting a star in front of the title of the affected system.

Question 21

What does the appearance of a green arrow at the bottom of the EWD screen indicate?

Answer 21

If there are too many ECAM messages for the amount of space available in the lower part of the EWD, a green arrow appears at the bottom of the display, pointing down to show that the information has overflowed off the screen.

Question 22

What does the display of T.O INHIBIT or LDG INHIBIT indicate?

Answer 22

To improve its operational effectiveness, the computer inhibits some warnings and cautions for certain flight phases. It does so to avoid alerting the pilots unnecessarily at times when they have high workloads, such as during takeoff or landing.

Question 23

When does the Takeoff Memo appear on the EWD?

Answer 23

The Takeoff Memo appears either 2 minutes after the second engine is started or when the T.O CONFIG test button is pressed with one engine running.

Question 24

When does the Landing Memo appear EWD?

Answer 24

The Landing Memo appears below 2000 ft RA. The memo disappears after touchdown below 80 kts. “CONF 3” is displayed if in Alternate or Direct Law, or if the GPWS LDG FLAP 3 pushbutton is ON.
NOTE: After a go-around, if the aircraft does not climb above 2200 ft RA, the Landing Memo appears only below 800 ft RA during the subsequent approach.

Question 25

In general, when are the system pages automatically displayed on the SD?

Answer 25

Automatic (Flight Phase Mode)
If no other mode is engaged or no system malfunction is detected, the SD displays the
system page related to the present flight phase.

Question 26

When is a STATUS page displayed?

Answer 26

The STATUS page appears when the Flight Crew presses the STS pb on the ECAM Control Panel (ECP).
The STATUS page automatically appears in abnormal operations if one of the following applies:
• The STATUS page is not empty and the Flight Crew clears the last alert on the EWD, or
• The STATUS page is not empty and the Flight Crew selects the CONF1 for approach

Question 27

What computers feed data to the six display units?

Answer 27

Three identical Display Management Computers (DMCs) obtain data from the different sensors and computers and send it to the six display units.

Question 28

Explain how each DMC normally supplies the different display units?

Answer 28

• DMC 1 drives the CAPT PFD, CAPT ND, and the ECAM DUs
• DMC 2 drives the F/O PFD and F/O ND
• DMC 3 is on standby, ready to drive any DU

Question 29

How can you tell if a DMC has failed?

Answer 29

the “INVALID DATA” message is displayed on the DUs

Question 30

What happens when the upper ECAM display fails?

Answer 30

If the upper ECAM display fails, or is switched off, the ENGINE/WARNING page automatically replaces the SYSTEM/STATUS page on the lower ECAM DU.

Question 31

If both the EWD and SD display units fail, how can you display EWD information?

Answer 31

If both ECAM displays fail, the Flight Crew may use the ECAM/ND XFR on the SWITCHING panel to display the engine/warning page on a navigation display

Question 32

With the upper EWD displayed on the lower screen, how else can you view SD information?

Answer 32

The Flight Crew can display the SYSTEM/STATUS page by:
• using the ECAM/ND XFR switch on the SWITCHING panel to move it to a Navigation Display Unit (NDU), or
• pushing and holding (for a maximum of 3 minutes) the related system page pushbutton on the ECAM control panel to temporarily display it on the lower ECAM DU (instead of the ENGINE/WARNING page)

Question 33

What does pressing the ALL pb on the ECAM control panel accomplish?

Answer 33

Pressing and holding down the ALL pb displays all the system pages on the SD at 3
second intervals.

Question 34

What does pressing the RCL pb on the ECAM control panel do?

Answer 34

When the RCL pb is pressed, the EWD displays all alerts previously cleared via the CLR pb that are still active. When it is pressed for more than 3 seconds, the EWD displays:
• all alerts previously cleared via the CLR pb that are still active
• all alerts previously canceled via the EMER CANC pb

Question 35

If you press the STS pb and the system has no STATUS messages, what will be
displayed?

Answer 35

If there is no alert to recall, the NORMAL message appears for 3 seconds on the EWD.

Question 36

If power fails to the ECAM control panel, which buttons are still functional?

Answer 36

If the ECAM control panel fails, the CLR, RCL, STS, EMER CANC, and ALL pushbuttons remain operative because their contacts are directly wired to the flight warning and display management computers.

Question 37

What does the EMER CANC pb do when a warning exists?

Answer 37

Warnings: Cancels (stops) an aural warning for as long as the failure condition continues and extinguishes the MASTER WARNINGS lights but does not affect the ECAM message display.
Cautions: Cancels any present caution (single chime, MASTER CAUTION lights, ECAM message) for the rest of the flight.

Question 38

What occurs when the T.O CONFIG pb is pressed?

Answer 38

simulates the application of takeoff power. This is a test that triggers a warning if the aircraft is not in takeoff configuration. If the configuration is correct, the EWD displays the T.O CONFIG NORMAL message in the TO MEMO section.

Question 39

When does the Digital Flight Data Recorder (DFDR) operate automatically?

Answer 39

The recording system is automatically active on the ground during the first five minutes after the aircraft electric network is energized, on the ground after the first engine start, or in flight (whether the engines are running or not). On the ground, the crew can start the recording system manually by pressing the GND CTL pb. Also, the recording system stops automatically five minutes after the second engine shuts down on the ground

Question 40

What is the purpose of the DFDR EVENT pb?

Answer 40

Pressing the DFDR EVENT pb (briefly) sets an event mark on the Flight Data records.