An "In-Flight Emergency" refers to any unexpected situation that occurs during a flight, which poses a risk to the safety of passengers and crew. This can include issues like sudden turbulence, engine failure, medical emergencies, or cabin depressurization. Pilots and flight attendants are trained to handle these situations to ensure the safety of everyone on board. When an in-flight emergency arises, the flight crew follows established protocols to manage the situation. They may communicate with air traffic control and make decisions about landing at the nearest airport. Passengers are often instructed to follow safety procedures, such as fastening seatbelts or using oxygen masks, to protect themselves during the emergency.