Agreed sar just throwing some thoughts out there as something doesn't add up. Another thought was a total loss of the c2 link and hd link but that would still leave a partial flight record and the craft should self initiate a RTH.
Those are not the right type of .DAT files. There are at least 3 types of .DAT files. The .DAT that you want can be obtained by following these instructions. Retrieving a V3.DAT from the tablet
Those are not the right type of .DAT files. There are at least 3 types of .DAT files. The .DAT that you want can be obtained by following these instructions. Retrieving a V3.DAT from the tablet
I've looked through the real DAT files he has too - they correspond to the txt logs and there doesn't seem to be one of either for the flight (or date) in question.