Surveillance regulations to avert squawk squeak

摘要

European airspace authorities are closer to resolving a shortage of secondary surveillance codes, after approval of new Single European Sky rules on aircraft identification. From next year, at least half the flights in core European airspace will be subject to the new coding rules, said air navigation organisation Eurocontrol, requiring downlinked aircraft data for identification rather than reliance on secondary "squawk" codes. Eurocontrol said the limited squawk system of just 4,096 codes is leading to shortages at peak times.