Sevenstrokeroll:
And that my theory is correct, somehow the flaps/slats were not extended and that the takeoff configuration warning/groundshift mechanism were compromised...the symptom being the heating of the RAT on the ground.
This is certainly AN explanation, maybe even the most likely explanation but, unless you have sources inside the investigation, not based on any
known facts.
If we could confirm that the deactivated TR was on #2 engine and that the picture of an engine with TR deployed was the #1 engine, then the uncommanded TR deployment theory would be less valid. But we can't, so it does remain a possibility.
This thread needs more hard facts which, probably will not be available until, in accordance with Spanish law, the first official report is made after a month. The lack of information leaked to the media suggests that the investigation is being well managed so we will just have to wait.