@NSEU
I'm surprised that the CVR/DFDR is exposed to the elements outside the pressure bulkhead like that (temperate extremes, hydraulic fluid, moisture, etc). Of course, I'm talking about the electronics external to the fireproof section.
Is this common for Airbus?
They are completely sealed units designed for massive G load, water, fire etc.
It is normal for these to be located here in many Airbus and Boeing planes;
http://asasi.org/papers/2007/The_Evo...l_Campbell.pdf