Audio Control Panel (ACP)

Question 1

With the INT/RAD switch on the ACP in the INT position, and the side stick transmit switch keyed, what radio will the crewmember transmit on?

Answer 1

 The radio selected by the transmission key on the ACP.

Question 2

What methods would the crew utilize to make a PA announcement?

Answer 2

- The flight deck handset dedicated to the PA system only
- Pressing the PA switch on the ACP and using the boom, hand, or mask
microphone (louder)