本文通过对2014年和2015年银川河东机场航班放行不正常班次的数量及原因进行统计,寻找出银川河东机场航班放行不正常的主要因素,分析了导致航班放行不正常因素发生的内在原因。 Based on the statistics of the number and reason of the irregular flights released in Yinchuan Hedong Airport in 2014 and 2015, this paper finds out the main factors causing abnormal flights in Yinchuan Hedong Airport and analyzes the internal causes of the abnormal factors in the release of flights.