Touching down on Runway 35 just before noon and operating under CCA031, an Air China Boeing 747-400P ferries Chinese politicians, officials and staff into Canberra Airport from Brisbane - a 1 hour and 34 minute flight. Although it isn't an official Boeing Designation, the "P" or "Presidential" suffix indicates a 747-400 adapted for presidential or VIP transportation. This particular registration - B-2472, MSN 30158 - is 25 years old, first flight and delivery to Air China in