【明報專訊】TESTS conducted by the Civil Aviation Department on Autotrac 3 (AT3), a new air traffic control system, have left the management and frontline staff responsible for safety assessments clearly divided as to whether the system is one hundred per cent safe. While the staff say AT3 may even "jeopardise safety", the Department's principal officials, including Norman Lo Shung-man, head of the Department, insist that even if there are problems, the problems have been or can be solved, and that the system will come into operation in the first half of next year.