Through the analysis of testing data, it was thought that the loose caulking block of center bore of low pressure rotor fell into the internal opening of coupling, and the following inspection proved the correctness of judgement.

• 通过对试验数据的分析,判断出低压转子中心孔的堵头落入联轴器内孔,据此进行了针对性的检查,证实了这种判断的正确性。