A flight prepares to take off from the Longjia International Airport in Changchun, capital of northeast China's Jilin Province, Feb. 17, 2013. Changchun saw a heavy snowfall on Sunday. The snow did not cause flight delay at the Longjia International Airport, where snow removal measures have been undertaken. [Xinhua]

Ground crew members drive on the snow-covered tarmac to check runway status at the Longjia International Airport in Changchun, capital of northeast China's Jilin Province, Feb. 17, 2013. Changchun saw a heavy snowfall on Sunday. The snow did not cause flight delay at the Longjia International Airport, where snow removal measures have been undertaken. [Xinhua]

Police help clear snow at the Longjia International Airport in Changchun, capital of northeast China's Jilin Province, Feb. 17, 2013. Changchun saw a heavy snowfall on Sunday. The snow did not cause flight delay at the Longjia International Airport, where snow removal measures have been undertaken. [Xinhua]

Passengers enter the Longjia International Airport in Changchun, capital of northeast China's Jilin Province, Feb. 17, 2013. Changchun saw a heavy snowfall on Sunday. The snow did not cause flight delay at the Longjia International Airport, where snow removal measures have been undertaken. [Xinhua]