Originally Posted by
jcjeant
Hi,
Can the pilot think he was in a inverted flight ?

We'll never know what they thought. Question is could the aircraft, through failure or some human interface factor in design, have convinced them they were inverted.
Very unlikely. As someone kindly pointed out to me a while back when I conjectured that they lost attitude: in the roll axis, control was maintained (albeit with some large excursions possibly due to stall). Without attitude indication at night / in IMC, I don't think they would have have kept wings anywhere near level.