LHASA, China, May 16, 2012 /PRNewswire-Asia/ -- China's first emergency assistance firm with a global servicing capability, CSOS (Shenzhen CSOS Assistance Company Limited), and Tibet Airlines Company Limited, ...

A United Airlines flight made an emergency landing in Denver this morning.United flight 867 was en route from Toronto to San Francisco when the pilot noticed some engine vibrations, said Rahsaan Johnson, a spokesman for the airline.

Smoke warning aborted trip from New Orleans to San Francisco