After hundreds of drone flights, one of our operators lost control of our RTK drone today. Take-off was normal, flying a pre-designed way-point route, then at 1 minute 23 seconds, the drone just spiraled to it's death, a total write-off unfortunately. I'd really appreciate any help to analyze the log. Airdata says that a side-shock was detected with a possible impact, It was 150m up in the air, certainly no obstacles that could have hit it, possibly a bird but they are very rare here. One prop was smashed on impact but all the parts were located very close to the impact site so I don't think a prop failed in the air. The drone is only a few months old but is used every day, certainly no defects had been noted. Log is attached below and any suggestions greatly appreciated!