Ok, maint. could have opened them after landing, but what I was suggesting was perhaps a hydraulic failure of some sort, necessitating an emergency gear extension (hence the nose gear doors being open) and the cause of the overrun. ie. Not enough pressure in the accumulator for the conditions of that day.
Btw Mutt, those doors are held up mechanically. So even if the aircraft was powered down for a week the doors on the nose and mains would still be up.
Cheers.