What critical duty does No3 perform during the NITS communication?

In the context of NITS communication, the No3 plays a crucial role in ensuring effective communication and maintaining situational awareness among the cabin crew. By repeating information to No1, No3 helps to confirm that the information has been accurately received and understood. This repetition serves as a means of cross-checking essential details and maintaining clarity during a critical situation, which is vital for the safety and coordination of the cabin crew.

This function is essential because it helps prevent misunderstandings and ensures that everyone is on the same page, especially in high-stress scenarios like emergencies. The No3's role as a communicator reinforces the chain of command and supports the overall efficiency of the crew's response to the situation at hand.

While collecting information from passengers, receiving signals from the captain, and leading the evacuation are important tasks within an emergency evacuation procedure, they do not emphasize the primary function of NITS communication as specifically as the role of No3 in repeating information. Thus, focusing on the accurate transmission of information highlights the importance of clear communication in maintaining safety on board.