I am using a pixhawk3.3.3 with a quad. yesterday I was flying in altitude hold mode, suddenly quad flipped and drown into a pond. I couldnt recover pixhawk, esc and battery. out of four motors two were good and we couldnt check other two. there were no error message in the dataflash log or in telemetry. imu and mag health were good.
I have attached the log file.. I really appreciate if someone can analysis the log..