@Kulverstukas - APU
Have seen that photo before but this quality appears to be much much better. Thanks.
What you see - as far as i know - is the muffler. Not the actual APU. What is also striking is that the APU access doors are open. Of course we do not know if that happened in flight or on landing or afterward.
The question that i had, driven by the possible scenario that i sketched before, was ... is it possible that the APU broke from its mountings early on in the descent sequence?
So great photo, and even better would be to get one showing the insides of the cone and the actual APU. Or a photo of the APU somewhere in the desert.