The review of technical diagnostics and crack detection at RUP “BMZ” is given in the article and there are reflected the functions and tasks of the Laboratory of Technical Diagnostics and Crack detection (LTDandC). The examples of determination of the equipment failure by methods of vibration diagnostics, applied in LTDandC, are given and the efficiency of using of the system of technical servicing of the equipment according to “state” is shown. The idea of transfer from the repairs system “according to schedule” to repairs “according to state” using new information technologies such as vibrating monitoring and vibrating diagnostics is briefly reflected in the article.