Avionics - CPDLC

Question 1

How many CPDLC message may be stored?

Answer 1

Up to 75 messages until the end of the flight

AOM 9-09-50

Question 2

What selection needs to be activated on the COM

3 control page prior to using CPDLC?

Answer 2

The DATA mode selection (AOM 9-09-50)

Question 3

How will a pilot be notified that an uplink (CPDLC)

message has arrived?

Answer 3

A CPDLC MESSAGE CAS message will be displayed
and a MESSAGE ATC aural annunciation
will sound (AOM 9-09-50)

Question 4

Does an ATC message received have priority over

an ACARS message received?

Answer 4

Yes (AOM 9-09-50)

Question 5

What is the usage of ATN- CPDLC

restricted to?

Answer 5

Supplementary means of communications for

non-time critical messages (AOM 2-64)

Question 6

What phase of flight is the usage of ATN – CPDLC

restricted to?

Answer 6

Cruise flight (above FL200) and for non-critical
messaging (AOM 2-64)