Condition-based maintenance and Markov modelling for avionics devices

The interest in maintainability, availability and the techniques to evaluate it had an exponential growth in the last few years, in particular for systems involved in mission-critical environments: these applications demand both high performance and high availability. Maintainability is directly associated to the concept of availability assessment since it concerns failure and recovery aspects of a system. This paper deals with Condition-based Maintenance (CBM) and Markov Modelling and their application on avionics devices. CBM is a maintenance program referred to the information collected through condition monitoring. One of the best method to carry on availability analysis is the condition based maintenance modelling using Markov analysis.