Health Monitoring for Electro-Hydraulic Actuator fluid The purpose of this research topic is to develop and validate a system to monitor the level of contamination of the aviation hydraulic fluids (e.g. number and size of the particles, the percentage of water, etc.) within a representative aircraft environment. Early detection of unacceptable level of fluid contamination will allow preventing detrimental effects on the equipment lifetime as well as improving efficiency and reducing the costs of maintenance operations. This research targets TRL6 validation. Please refer to the full topic descriptions document published in this call.