What announcement is made when urgent communication is needed from the flight deck to cabin crew?

When urgent communication is required from the flight deck to the cabin crew, the announcement, "In-charge flight attendant report to flight deck," is used to indicate that the situation is serious and necessitates immediate attention from the lead cabin crew member. This directive signifies that the flight deck needs to convey critical information or instructions, likely related to safety or operational issues during the flight.

The other options, while they may pertain to different operational scenarios, do not specifically indicate the need for urgent communication from the flight deck. For instance, preparing for an emergency landing could involve numerous protocols, but it doesn't specifically call for immediate communication with the cabin crew. Furthermore, signaling all crew to their stations or requesting a standby for interphone calls might indicate preparations or routine matters rather than direct urgent communication. Therefore, the correct response effectively addresses the need for urgent engagement between the flight deck and cabin crew.