The term 'Flight Group' refers to a group of people who are responsible for the operation of an aircraft. This includes the CREW, which is typically composed of a pilot, co-pilot, and flight attendants. The CREW is responsible for the safety and comfort of passengers during the flight, as well as ensuring that all regulations and procedures are followed. Additionally, the CREW is responsible for the maintenance and operation of the aircraft, including pre-flight checks and post-flight inspections.