Condition Based Maintenance for Aircraft Electrical Systems

With the prevalence of more electrical aircraft (MEA), aircrafts are more vulnerable to electrical system faults. The proactive Condition Based Maintenance (CBM) for aircraft electrical systems has become an issue of substantial importance and urgency. Although certain aspects of CBM have been implemented with considerable success, CBM for aircraft electrical systems is still at its early stage of development. Diagnostic and prognostic technologies need to be improved to meet CBM requirements. This paper reviews the existing studies on the CBM for aircraft electrical systems in terms of its concept, content, requirements, hierarchy, methodologies and system configuration, and is intended to provide a technology survey particularly on the state of the art and challenging issues of aircraft electrical system CBM.