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Last updated at: (Beijing Time) Wednesday, July 10, 2002

Aircraft for Civil Use to Be Equipped with New Collision Avoidance System

As revealed from the General Administration of Civil Aviation of China (CAAC), most of China's airline companies have recently equipped with a second-generation airborne collision avoidance system (ACASII) in accordance with CAAC's requirements.


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As revealed from the General Administration of Civil Aviation of China (CAAC), most of China's airline companies have recently equipped with a second-generation airborne collision avoidance system (ACASII) in accordance with CAAC's requirements.

The measure aims to decrease the possibility of jet collisions following the tragic collision last week in southern Germany between a cargo plane and a passenger jet.

The airborne collision avoidance system is an automatic alert system to help avoid collision effectively. It is able to prevent air crash happening once the ground radar fails to work or commanding personnel makes error judgment. To some extent, it is regarded as a dual insurance for airplanes.

Those that haven't been equipped with the system are not allowed to take off or land in the Beijing International Airport, Tianjin Binhai Airport, Shanghai Hongqiao Airport, Shanghai Pudong Airport and so on as of 12th of July 2002. Also they are not permitted to fly above 8,400 meters in the air routes of A461, A593 and A599.

The CAAC document said planes have increased dramatically in recent years and such conditions pose great difficulties to air traffic control. The ACASII system would help correct the errors neglected by ground radar systems, and avoid possible collision tragedies, the document reads.

Statistics at CAAC show that most domestic airline fleets have the collision avoidance system, though some need to be upgraded. Some small planes, which operate for short distances, are still not equipped with ACASII.



By PD Online Staff Yang Ruoqian


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