Stage 6 Information System

Question 1

What are the applications available on the A320 fleet datalink via ATSU MCDU?

Answer 1

AOC

ATC (DCDU/ CPDLC / FANS B/B+/ ADS-B)

Question 2

What do ATC applications provide?

Answer 2

COMM/NAV/SURV information for ATM services to help them enhance the air traffic flow

Question 3

What are the types of DATALINK messages that can be sent manually?

Answer 3

UPLINK (Ground to Crew)

DONWLINK (Crew to Ground)

Question 4

Where are FANS A and B used?

Answer 4

A: remote/oceanic airspace
B: High density areas

Question 5

What do FANS B provide?

Answer 5

Notification

CPDLC

Question 6

If using Datalink, when should crew revert to voice comms?

Answer 6

1) Emergency
2) Doubt/Clarify datalink UPLINK message and Correct a DOWNLINK message
3) Datalink times out

Question 7

What is the required clock accuracy for ATC datalink?

Answer 7

-/+ 1 s

Question 8

What is the position input for the ATSU?

Answer 8

FMGC

Question 9

What is the function of the ATSU?

Answer 9

It controls the datalink communication aspect by selecting the best media.
It uses VHF 3/ HF / SATCOM

Question 10

What is the role of the DCDU?

Answer 10

it is the user interface which pilots use to receive and answer datalink messages

Question 11

How is the MCDU used in datalink?

Answer 11

Manage connections, edit messages and access the message records

Question 12

How can you set the frequencies sent by datalink to RMP?

Answer 12

via LOAD button on RMP

Question 13

What is the MSG-/+ key for on the DCDU?

Answer 13

To scroll the message queue

Question 14

How are crew alerted of an UPLINK message?

Answer 14

ATC MSG pbs on the glaresheild with repeating chimes.

Urgent messages chime every 5 s and 15 s for normal

Question 15

When are datalink messages inhibited?

Answer 15

Takeoff and landing phases

Question 16

How can pilots reply to uplink messages?

Answer 16

1) Directly on DCDU

2) Indirectly on MCDU

Question 17

What should pilots do after a reply is sent on DCDU?

Answer 17

Close the message to clear DCDU

Question 18

How can pilots access previous datalink messages?

Answer 18

Either via RECALL on DCDU for the last message and the MCDU MSG RECORD for earlier messages

Question 19

What is the difference between FANS B and B+ on the fleet? (ANB has B)

Answer 19

FANS B requires a voice reply for uplink messages

Question 20

What is the AOC function for ?

Answer 20

It is a medium between the crew and ABY Operations

Question 21

What can be exchanged on AOC?

Answer 21

Information on
Preflight and Post flight (Delay, log, WX, NOTAM, Loadsheet, Diversion, ETA, FPL modifications)

Postflight (Delay, summary, log etc)

Question 22

What are the steps to use ATC function?

Answer 22

1) Initialize: ATSU-COMM-COMM CONFIG-VHF3 SCAN SELECT Page
2) Notify: MCDU-ATSU-ATC-CONNECTION-Notification
3) Connect CPDLC on DCDU

Question 23

How to send a request on to ATC?

Answer 23

REQUEST Page on ATC MCDU and then XFR to DCDU

Question 24

What are the available requests on the REQUEST page?

Answer 24

DIR to
FL/ALT
SPD/MACH
Reason for request

Question 25

How can a pilot modify a negotaition type message if they dont want to send the automated answer?

Answer 25

1) *MODIFY on DCDU

2) Access MESSAGE MODIFY or EDIT page on MDCU ATC

Question 26

What is the procedure when AOC requests a FPL modification inflight?

Answer 26

1) Load the new FPL to SEC FPL on SEC INDEX page: *AOC FPL Insert
2) Request from ATC using SEC FPL REQ DISPL to xfr the FPL to DCDU and *Send
3) Activate SEC when cleared