Communication

Question 1

How many channels does the CVR have?

Answer 1

4 independent channels

Question 2

How far back does the CVR retain recordings for?

Answer 2

30minutes worth of recording. Everything prior is erased

Question 3

What are the individual channels?

Answer 3

1 flight deck area microphone, 3 individual comms for Captain, FO and observer

Question 4

What does switching the Service interphone switch to on do?

Answer 4

Connects external jacks to interphone system

Question 5

If the Service interphone switch is moved to off, what functions on the interphone still work?

Answer 5

Flight deck to flight attendant calls, Nose gear plug in still functions

Question 6

How are the ACARS and CPDLC accessed?

Answer 6

via the CDU’s

Question 7

What are the ACP capabilities in ALT mode?

Answer 7

Captain T/R on VHF 1
FO T/R on VHF 2
ACM T/R on VHF 1

Question 8

What ACP capabilities are not available in ALT mode?

Answer 8

PA, Interphone

Question 9

What is the flight interphone system?

Answer 9

An independent network allowing communication between flight deck and flight attendants/ground personnel