亚洲精品无播放在线播放,精品国精品自拍自在线,免费国产污网站在线观看不要卡,97色欧美视频在线观看,久久精品本无码一本,国产精品高清视亚洲一区二区,全部无码特级毛片免费播放

China's civil aviation authority issued a circular on Thursday urging domestic airlines to strengthen risk assessments and secure flight safety.

The move followed the crash of a Russian airliner, in which 170 people died, in eastern Ukraine on Tuesday.

With speculation that the accident was caused by bad weather, the Civil Aviation Administration of China required air traffic control departments to closely monitor weather changes and provide accurate forecasts.

"Fickle weather and the current brisk traffic have compounded the difficulties of safe flight," said the circular.

The administration also ordered an immediate survey of the navigability of all aircraft, especially those with long service.

"Airlines must strengthen control of ground services at airports within their jurisdiction and pay special attention to the navigability of their aircraft at other airports," said the circular, stressing the necessity of "eliminating hidden dangers before aircraft take off".

The administration also prohibited overtime for flight crews, requiring pilots and stewards to strictly abide by flight schedules.

Airlines violating the rules would be penalized, it said.

(Xinhua News Agency August 25, 2006)