Communications / Navigation

Question 1

How may the COMM(s) be tuned?

Answer 1

• Either MCDU via the RADIO Page
• Respective Sides CCD/PFD
  i. CA’s Side = COMM/NAV 1
  ii. FO’s Side = COMM/NAV 2

Question 2

How may the NAV(s) be tuned?

Answer 2

• Either MCDU via the RADIO Page
• Respective Sides CCD/PFD
  i. CA’s Side = COMM/NAV 1
  ii. FO’s Side = COMM/NAV 2

Question 3

When does the DVDR start recording Audio?

Answer 3

• Aircraft power up.

Question 4

When does the DVDR start recording Flight Data

Answer 4

• After first engine start.

Question 5

If the Primary and Secondary radio functions are not available, would you be able
to still tune COMM(s), NAV(s) and XPDR(s)?

Answer 5

• Yes, via the Backup Tuning function
  i. The BACKUP RADIO page on MCDU2 provides a backup tuning
  interface for COM 1, VHF 1 and XPDR 1 (ALT MODE OFF).

Question 6

What is the difference between the Pedestal PA button and the ACP PA button?

Answer 6

• Pedestal is active/hot mic only when pressed
• ACP button is active/hot mic after being selected and must be deselected
  to change the connection to inactive/cold mic