Indicating and Recording Systems

Question 1

How may Display Units (DUs) are on the aircraft and how are the organized as a part of the Electronic Instrument System (EIS)?

Answer 1

6 DUs in two parts

• Electronic Flight Instrument System (EFIS) - Two PFDs and Two NDs
• Electronic Centralized Aircraft Monitor (ECAM) - 1 EW/D (upper ECAM) and 1 SD (Lower ECAM)

Question 2

How many Air Data Inertial Reference Systems (ADIRS) are there and how are they organized

Answer 2

3 ADIRUs each divided into two units

• Air Data Reference (ADR) Unit - processes pitot static information
• Inertial Reference (IR) Unit - processes attitude, positional, and wind data

Question 3

What are the functions of the each ADIRU (1, 2 and 3)

Answer 3

ADIRU 1 - CAs PFD and ND
ADIRU 2 - FO PFD and ND
ADIRU 3 - backup ADIRU

Question 4

What information will the E/WD provide

Answer 4

1) Primary engine parameters - N1, N2, EGT, Fuel Flow
2) Supplemental Information - Thrust limit mode, FOB, Slat Flap Position
3) Memo Section - Normal and Non-normal ops including checklists, Class 1 ECAM messages

Question 5

What is the color-coding convention on the E/WD

Green
White
Blue
Amber
Red
Magenta
Amber Xs

Answer 5

1) Green = Normal, long term operation
2) White = remarks and labeling guidance for procedures
3) Blue = Units of measure and ECAM action steps
4) Amber = failure or config needing crew awareness but not necessarily immediate action
5) Red = failure or config requiring immediate action.
6) Magenta = informational messaging
7) Amber Xs = Information not available

Question 6

What is the EFIS DU priority

Answer 6

1) PFD has priority over the ND
2) If outer DU is turned off or fails, PFD automatically transfers to the inner DU

Question 7

What is the ECAM Display DU priority

Answer 7

1) E/WD (upper ECAM) takes priority over the SD (lower ECAM)
2) If the upper ECAM fails or fails the E/WD automatically transfers to the lower ECAM.

Question 8

How do the Brightness control knobs on the ND work?

Answer 8

1) Inner (small) knob - controls general brightness of the symbols, rotating this knob counterclockwise turns off the ND
2) Outer (bigger) knob - controls the brightness of WX Radar displays and EGPWS Terrain displays

Question 9

What is the function of the three Display Management Computers (DMCs)

Answer 9

1) DMCs process signals received from sensors and other computers on the airplane for display on the DUs

• DMC 1 = CA PFD, ND, and E/WD
• DMC 2 = FO PFD, ND and SD
• DMC 3 = backup for either DMC1 or DMC2

Question 10

What is an independent failure message? Where and how will it be presented?

Answer 10

1) Failure that affects an isolated system without degrading the performance of other systems or components

2) Presented on the left column of the E/WD memo section
- Affected System is underlined, eg: F/CTL, HYD, ELEC
- Specific Failure follows, eg: F/CTL ELAC 1 FAULT

Question 11

What is a primary failure message? Where and how will it be presented

Answer 11

1) A failure that affects the use of other systems or components.

2) Presented in the left column of the E/WD memo section as a “BOXED ITEM”

Question 12

What is a secondary failure message? Where and how will it be presented

Answer 12

1) Systems or components affected as a result of a Primary failure?

2) Presented in the right column of the E/WD memo section in amber.

Question 13

What is the indication of a DU failure? Will you get an ECAM message?

Answer 13

1) Failed DU will flash, go blank or be distorted
2) DUs are not monitored by the FWCs, so there will be no ECAM message.

Question 14

How are pumps presented on the SD, what do the following indications mean with regard to pump position and operation:

Inline Green
Crossline Green
Crossline Amber
LO amber

Answer 14

Inline Green = pump is on and pressure is normal
Crossline Green = pump is off in accordance with system logic
Crossline Amber = pump has been manually turned off
LO amber = pump is on but pressure is low

Question 15

How are valves presented on the SD, what do the following indications mean with regard to valve position and operation

Inline Green
Crossline Green
Crossline Amber
Inline Amber
Diagonal Amber

Answer 15

Inline Green - valve is open
Crossline Green - valve is closed
Crossline Amber - valve is stick closed but being commanded open
Inline Amber - valve is stuck open but being commanded closed
Diagonal Amber - valve is in transit.

Question 16

Where is the SATUS page displayed, what does it display and how can it be displayed

Answer 16

1) Located on the SD and provides an operational summary of the state of the aircraft

2) Displayed by
- Pressing STS pb on the ECAM control panel
- Automatically as part of the ECAM Non-Normal Procedure
- Automatically when CONF 1 (FLAPS 1) has been selected in the approach phase and the status page is not empty.

Question 17

What does an STS REMINDER (white boxed STS) mean when it appears on the lower portion of the E/WD

Answer 17

Reminds crew that information exists on the STATUS page.

Question 18

What do the following functions of the SWITCHING panel do

ATT HDG
AIR DATA
EIS DMC
ECAM/ ND XFR

Answer 18

1) ATT HDG - selects IRU 3 for attitude and heading info when IRU 1 or 2 fail
2) AIR DATA - selects ADR 3 for pitot static info when ADR 1 or 2 fail
3) EIS DMC - Selects DMC 3 when DMC 1 or 2 fail
4) ECAM/ ND XFR - transfers the lower ECAM information to the CA or FO ND screen

Question 19

Can the ND screen information on either the CA or FO side be transferred to the lower ECAM?

Answer 19

No

Question 20

What does the CLR pb on the ECAM control panel do?

Answer 20

Used to clear failure messages and sequence through the SD pages during an ECAM non-normal procedure

If there are multiple failures displayed, pressing the CLR pb will clear the first message and all its associated action steps.

Question 21

What does the RCL pb do?

Answer 21

1) Recall cleared failure messages THAT ARE STILL ACTIVE
2) If there are no cleared messaged NORMAL appears on the E/WD memo section
3) If held for more than 3 seconds, the E/WD displays CAUTION messages that were cancelled by EMER CANC pb.

Question 22

what does the TO CONFIG pb do

Answer 22

1) Used to test the T/O warning system
2) Simulates the application of T/O power
3) Generates all warnings associated with the aircraft not correctly configured for takeoff.

Question 23

What will the EMER CANC pb do in response to ECAM WARNINGS

Answer 23

1) Cancels the aural warning for as long as the failure condition continues
2) Extinguishes the MASTER WARNING lights
3) Does not affect the ECAM message display (MASTER WARNING message remains in view)

Question 24

What will the EMER CANC pb do in response to ECAM CAUTIONS

Answer 24

1) Cancels the aural warning for as long as the failure condition continues
2) Extinguishes the MASTER CAUTION lights
3) Cancels ECAM message display for the remainder of the flight (MASTER CAUTION message is removed)
4) Cancelled MASTER CAUTION messages may be recalled by pressing the RCL pb for 3 seconds

Question 25

When should the EMER CANC pb be used

Answer 25

suppress spurious MASTER CAUTIONS