6 = maintenance warning level (?)
7 = not used
[https://www.youtube.com/watch?v=fOnKzUN7SzU Tampering / manipulation log video] [https://www.youtube.com/watch?v=SEQTSzwD-t4 Explaining basic concepts]
[[File:ISKRA LOG.png|thumb|FIFO logbook P.98.1 for 74 "possible misuse type events"]]