An emergency landing occurs when an aircraft must land unexpectedly due to a serious issue, such as mechanical failure, medical emergencies, or severe weather conditions. Pilots are trained to handle these situations and prioritize the safety of passengers and crew. During an emergency landing, the flight crew communicates with air traffic control to find the nearest suitable airport. They may also prepare passengers for landing by providing instructions and ensuring that everyone is secured. The goal is to land the aircraft safely, minimizing risks to all on board and on the ground.