[en] The JASPER system, designed for the inspection of PWR RCCAs has been qualified and put in operation since May 2006. Three systems are now operational and more than sixty inspections have been performed. The performances which are higher than those of the equipment primarily used, in terms of measurement accuracy and inspection duration, have been confirmed by the systematic re-validations carried out on site. The new technique used for detection of the indications is based upon the use of UT on the whole length of the clad and ET for the detection of cracks; the global performance of the examination has thus been improved (better detection capability on a larger range of degradations). UT data are recorded on the whole length of the tube: the Utility thus gets a precise knowledge of the status of the assemblies; more specifically, the evolution of the first assemblies which were coated enables to assess the efficiency of the surface treatment that had been selected in order to reduce wear of the clad and extend the assembly lifetime. (authors)