Thank you for that clarification PJ2. The DFDR of that A340 ended up in an opening directly below the THS actuator, below the "floor" of the compartment.
That was a 'love tap' compared to the bash AF447 seems to have taken.
Unless the DFDR ended up wrapped in other structure, I would expect it is free of its mount simply in view of the forces involved and crash attitude.
That tail compartment is likely torn open.
Hopefully that bit of oarnge will not be too heavily silted or otherwise covered if it is lying free.
Then a good photo interpreter will have a fighting chance of picking it out.