Why does the following violate third normal form? (flight_number is the primary key)

flight_number	aircraft	pilot_id	pilot_rank
526	Boeing 747-400	137	Captain
628	Airbus A320	139	Senior Captain
321	Airbus A320	137	Captain

		Aircraft name is too long
		There is a transitive dependency from flight_number -> pilot_id -> pilot _rank
		Pilot_id 137 is not unique (it ised twice)
		Aircraft name contains both the manufacturer and the type number
		Pilot name is not provided