Which button must be pushed to place an Interphone call to the Flight Deck?

To place an interphone call to the flight deck, the correct button to press is the FLT button. This button is specifically designated for communication between the cabin crew and the flight deck, enabling clear and direct communication during critical phases of the flight or when specific information needs to be relayed. Understanding the purpose of the FLT button is crucial for flight attendants, as it ensures they can effectively communicate important updates or emergencies to the pilots.

In this context, the other buttons serve different functions. For example, the EMG button is typically used for emergency communications, while the PA button is meant for making announcements to passengers. The TEST button is used to check the functionality of the intercom system, but it does not facilitate communication with the flight deck. Knowing these distinctions helps flight attendants operate safely and efficiently during flights.