This EWIS course aims to provide operators, maintenance organizations, and persons doing repairs or changes to aircraft with the accompanying information to ensuring appropriate procedures, methods, techniques and practices when performing maintenance, preventive maintenance, inspection, modification, and cleaning of EWIS. Participants in the course will learn about all facets of the system of electrical wiring interconnection (EWIS) of an aircraft in order to better grasp the topic and the useful approaches of establishing criteria and following existing rules.