摘要
APU的主要功用是在地面代替发动机提供飞机电源和气源,并可以用于空中或地面启动大发。APU启动故障的结局则常常是启动失败,这不仅增加了机务人员的维护工作,同时对于缺乏地面保障设备的航站还影响航班正常,因此准确、迅速的排故具有重要意义。
APU start failure often leads to the failure of engine start zvhich will not only increase maintenance work, but also affect the regularity of flight. Hence, it is of great significance to timely prevent and accurately, swiftly remove APU start failure. Through analysis of APU start process and principle, combined with its phenomena in start, the article has given detailed examples and dissected the cause for APU start failure, recommending some experience in the process of actual maintenance and trouble—shooting which will be much helpful in the practical work.
