六、角色定位与民航安全关系最紧密的空勤人员、地面人员和各层面安全管理人员(特别是作安全决策的人),在民航安全工作中都有双重角色定位,既是维护安全的践行者,又是葬送安全的祸害者。随着航空技术设备的不断进步,飞机系统失效发生飞行事故的比例大为减少,而人为差错对飞行安 Sixth, the role of civil aviation safety and positioning of the most closely related to flight crews, ground personnel and safety management personnel at all levels (especially for security decision-making people) in civil aviation safety has a dual role in positioning, both to maintain safety practitioners It is also a scourge of safety. With the continuous improvement of aviation technology and equipment, the proportion of flight accidents caused by the failure of the aircraft system is greatly reduced, while that of man-made mistakes on flight safety