近期,深航机队CFM56-7B发动机集中出现滑油消耗量大的问题,没有发现外部渗漏点,检查磁堵发现白色特氟龙材料,怀疑该材料来自3号轴承前封严。为了确认故障原因,实现了在翼孔探检查3号轴承前封严,但该项操作存在一定风险,本文介绍了孔探检查过程,以供同行参考。 Recently, the Shenzhen Airlines CFM56-7B engine concentrated concentrated oil consumption problems, found no external leakage point, check the magnetic block found white Teflon material, suspected that the material from the No. 3 seal before the seal. In order to confirm the cause of the malfunction, it is realized that there is a certain risk in checking the No. 3 bearing before the wing hole exploration. This paper introduces the inspection process of the hole exploration for the reference of peers.