C marks an accident, that is potentially catastrophic (has the potential to kill everybody on board of an airplane) - a Crash. They actually answer that in the

C marks an accident, that is potentially catastrophic (has the potential to kill everybody on board of an airplane) - a Crash. They actually answer that in their FAQ[0], third question. Was also trying to figure out what R meant. [0]: https://avherald.com/h?faq=&opt=0 https://avherald.com/h?faq=&opt=0