摘要： 介绍了飞来峡船闸的特点，针对下左人字门出现的异常响声问题，进行了原因分析和处理方法探讨。

Abstract: The characteristics of Feilaixia lock are introduced in this article. Aiming at the abnormal sound occurred in the left lower lock head, the author gives the analysis on the reason of occurring and treatment steps.