120m crash during mission

Ive been trying to help someone out with a crash log. It looks like machine turned off in the air during a mission. so data afterwards was not recorded. Battery has been measured after the crash and has a voltage of 3.2 per cell (li ion) we regularly fly down to 2.8v using liion. can anyone see any problems here.
https://review.px4.io/plot_app?log=3d552044-12aa-4b10-919d-2bdfa037425a