Grounding
There was a great deal of Pprune input after the fleet was grounded (sic).... The focus was on the aft E+E Bay, and the architecture of the Lithium Ion (Yuasa designed/built) batts.
It was thought that the batteries spontaneously went into thermal runaway, I don't recall discussion about generators or the "Generator Control Units". In any case Boeing at some stage installed the Thales batteries, they had a new feature, the patent on "inflection point"... Which made them the clear choice.... Battery fires were patent, I think the EEbays, fore and aft, may have had summat part in this crash.... The APU door suggests it had been selected in some form or fashion... Did it come on line??