波音737NG引气剪刀差故障分析

The Boeing 737NG Pneumatic Scissors Difference Fault Analysis

波音737NG飞机引气系统作为飞机的重要系统直接影响着飞机空调、座舱增压、发动机和机翼的防冰。B737NG飞机引气剪刀差故障就是发动机引气系统出现性能衰减的初始表象并且经常被人忽视。本文通过分析典型的引气剪刀差故障,并在飞机缺少专用的引气测试设备时,提供快速的故障判断方法。

Boeing 737NG pneumatic system is a very important system directly affecting the air conditioning, cabin pressurization and wing anti-icing of the aircraft. The B737NG pneumatic scissors difference is the engine pneumatic system fault initial appearance which is normally ignored. This article proposes a fast troubleshooting process through analysis of the pneumatic scissors difference in case of appropriative pneumatic test equipment lack.