本文简要介绍平视显示技术及其在民用飞机上的应用,以HGS 4000型平视指引系统为例,阐述民用飞机平视指引系统的工作原理及其操作模式,并结合山航B737-700/800飞机应用HGS 4000型平视指引系统运行的实践经验,总结HGS 4000型平视指引系统的常见故障信息并加以分析,以期为系统故障信息的排除及飞机放行工作提供思路和参考。 This article briefly introduces the head-up display technology and its application on the civil aircraft. Taking the HGS 4000 head-up guidance system as an example, this paper expounds the working principle and operation mode of the head-up guidance system for civil aircraft. Combining with the application of the SAC B737-700 / 800 aircraft HGS 4000 head-up guidance system operation experience, summarizes and analyzes the common fault information of HGS 4000 head-up guidance system, with a view to providing ideas and references for troubleshooting of system failure information and aircraft release.