I fail to understand with an airplane about to conduct a very long flight, that they could accept that the airplane was lighter than it was. 100 tons is a lot to loose and bells should have been ringing.
herkman, I'm afraid you're beside the point.
From what I understand, every weights in MCDU and System Display were according to the load sheet and a TOW of 363 tonnes.
All weight information presented to the crew by the airplane screens were correct and in total accordance with the W&B.
The only mistake was to type in the Performance laptop a 2 instead of a 3, 263 instead of 363.
Actually, VERY easy to do that kind of mistake.
In my eyes, the best chance to catch that mistake was to
question that extreme 74 degrees Celsius as a FLEX when you go for 14 hours with a full load ...
I HOPE ??? I would have caught it ...
By now, learning from their experience, I HOPE I would get it.