What is the function of the cabin interphone and PA during an emergency?

• A. To entertain passengers during delay.
• B. To communicate between cabin and cockpit, issue instructions, and coordinate actions.
• C. To announce meals.
• D. To regulate cabin temperature.

Answer: (B)

During an emergency, fast, clear, authoritative communication between the flight deck and cabin crew is essential. The cabin interphone and public-address system provide that link, allowing the cockpit to issue instructions and status updates to the cabin and letting cabin crew relay information back as needed. This coordination enables actions like directing passengers, assigning roles (who helps, who assists at exits), and guiding evacuation steps or brace commands. The main purpose is to communicate critical information and coordinate responder actions to keep passengers safe.

Options that focus on entertainment, meal announcements, or adjusting cabin temperature aren’t part of the urgent safety function in an emergency. Those systems may exist for daily operations, but in a crisis the priority is to convey clear instructions and maintain coordinated actions between crew and cockpit.