Piston middle position test, Variable Stator Vane Actuator of engine CFM56-3 /-5 /-7

Compressor is surely the most complex part of engine, and during projecting of engine, ensure safe operation of the compressor is very difficult job. In support of this is the fact that the most of accessories (sensors and actuators) are in connection with compressor, but two most important systems are VBV and VSV systems. In this work, we will observe VSV system, respectively VSV Actuator. Our research have a quest to decrees some remarked problems which occur during work on VSV Actuator, and of course we will offer a solution for remarked problem in term of adding another one point in test. Also, our suggestion is creating incoming inspection, pre-test inspection with the points to be listed in below.