A rescue professional (1st R) from Singapore demonstrates the search and rescue equipment that will be used in the search for the missing AirAsia flight QZ8501 at Singapore's Changi Airport, on Dec. 29, 2014. The AirAsia flight QZ8501 scheduled to arrive at Changi Airport on Sunday lost contact with Indonesian air traffic control in Indonesian flight information region. Singapore has pledged support and will dispatch aircraft and equipment to support the search and rescue efforts in Indonesia. (Xinhua/Chen Jipeng)