Abstract:At present, borescope inspection is the only technique for in-situ detecting defects in aeroengine laminas, but the inspection performance is poor by using borescope to detect cracks in laminas. Therefore, borescope and eddy current integrative testing technique was presented, combining the advantages of these two techniques. The technique can achieve in-situ detecting defects in aeroengine laminas. A borescope and eddy current integrative testing probe used for aeroengine laminas was developed. A testing example of aeroengine lamina using the probe was given. The testing results show that the inspection performance is high using borescope and eddy current integrative testing techniques, and the cracks can be estimated quantitatively. It was concluded that the integrative testing technique is superior to single borescope inspection, and it is very valuable for practical application.