Nowadays, everybody can hear about the different drone technologies, as it continuously appears in everyday life. It is just to see on the internet how many possibilities are available with a drone. The hobby use of aerial photography can be regarded as basic, but this photographic feature can also be used to professional purposes, like for different festivals, weddings, and police. However, operating a drone is still not a toy-like activity. Especially for a bigger drone, but also for a smaller drone, several steps are necessary to operate it safely. Sometimes it occurs, especially for older or slightly damaged drones, a testing and diagnostic are necessary to get information about the malfunctions. Educational purposes are also important in engineering education, and the basic drone education should be extended with diagnostic viewpoints. This presentation introduces different diagnostic techniques for drones, own experiences, and their usability in education.