民航发[2007]39号民航各地区管理局,各航空运输、服务保障公司,各机场公司:2006年,在航班总量大幅度增加、空域资源日趋紧张、非民航飞行活动影响增大的情况下,基本保持了航班正常率的稳定,取得了较为明显的成效。据统计,全年航班正常率为81.48%, Civil Aviation Administration [2007] No. 39 Civil Aviation Authority of all regions, air transport, service guarantee companies and airport companies: In 2006, when the total amount of flights increased substantially, the airspace resources became increasingly tense and the impact of non-civil aviation flight activities increased Under the basic maintenance of the normal rate of flight stability and achieved more significant results. According to statistics, the normal rate of flights throughout the year was 81.48%