Central maintenance computer represents a key link between aircraft's systems and their correct and reliable operation. It enables system monitoring and thus helps with identifying and resolving faults and failures. When faults are present, associated maintenance messages appear which systematically lead to the root cause of faults. In diploma we focus on systems required for correct operation of AE3007A engines used on Embraer ERJ135/145 aircraft. The AE3007A turbofan engine is presented and broken down by processes, along with the central maintenance computer used on ERJ135/145. Different types of data collected and processed by the CMC are introduced. The diploma then focuses on maintenance messages and how they are categorized based on their importance. Among other things, a program developed for collecting CMC maintenance messages is shown and presented, as well as a process for analyzing secondary maintenance messages. At the end a statistical analysis is carried out which shows a frequency of individual maintenance messages and provides guidelines for corrective actions. Suggestions are also given for further automatization and introduction of processes for regular analysis of secondary maintenance messages of the utmost importance.
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