United Airlines Flight Attendant Basic Induction Practice Test

CATS refers to a dedicated telephone-based channel used to relay operational advisories and important messages to the flight crew. This makes Crew Advisory Telephone System the correct expansion, as it is the official name of this system. The Cabin Intercommunication Data System handles cabin interphone and data communications, while the Centers for Disease Control is unrelated to aircraft systems, and a generic Crew Communication System isn’t the official designation for this specific advisory channel.