During which phase of the flight must flight attendants be seated in the jump seat?

Flight attendants must be seated in their jump seats during the taxi and takeoff phases of the flight primarily for safety reasons. During these critical moments, the aircraft is in a position where any sudden changes, such as a need for emergency evacuation or abrupt maneuvers, could occur.

By being secured in their jump seats, flight attendants can immediately access safety equipment and be in a stable position to assist passengers should an emergency situation arise. This requirement is in line with aviation regulations aimed at ensuring the safety of both crew members and passengers during the most hazardous phases of flight.

In contrast, other phases like landing and boarding involve different safety protocols. During mid-flight service or in-flight entertainment, flight attendants are actively engaged with passengers and can move about the cabin, which does not require them to be seated in their jump seats.