According to the work principle of A320 cargo door, combined with the actual work experience of the air line, the paper sums up and analyzes the causes of abnormal switching of the cargo door. The operating principle of cargo door is analyzed from hydraulic path and circuit diagram, the purposes of it are quickly finding out the most likely failure parts, reducing delays and ensuring the safety of flight.%本文依据A320货舱门工作原理，结合航线的实际工作经验，总结分析了货舱门无法正常开关的故障原因。从液压油路，电路图两个方面分析了货舱门的操作原理，目的是快速找出最可能故障件，减少航班延误，保障航班安全。
展开▼
