During passenger deplaning, how many flight attendants must remain on board a 737-700 aircraft?

In accordance with safety protocols, when passengers are deplaning, at least one flight attendant must remain on board the aircraft to oversee the process and ensure the remaining passengers' safety. This includes checking that the cabin is clear of any hazards, managing potential emergencies, and being available to assist any passengers who may need help during the deplaning process. Having one flight attendant on board provides a necessary level of oversight and security, ensuring that all passengers exit safely and efficiently.

The requirement of a single flight attendant aligns with safety regulations, allowing the rest of the crew to focus on managing passenger flow at the door and ensuring that all safety procedures are followed during the deplaning process. Thus, the necessity of having one flight attendant remain is paramount for a smooth and safe conclusion to the flight.