@HarryMann:
I have been reading it, by the way both editions. All I can say is, that I crossed the ITCZ to/from Brazil, I do have to look in my logs how many times. Did so in Africa as well. I do not want to downplay nothing that had been analysed by Tim, excellent analysis. But still, how many planes were lost in the last decades on the South Atlantic?
There must have been various things coming together for this unlucky flight.