Friends, relatives of passengers await news of AirAsia QZ8501 at Changi Airport. AirAsia flight number QZ8501, bound from the Indonesian city of Surabaya to Singapore, has lost contact with air traffic control, the airline has confirmed. The missing flight is an Airbus A320-200 with up to 161 people on board. Indonesia air transport authorities have provided details of the plane’s last position. “We...