777 "Lost all power and avionics"?
It's so long ago now -and so many posts back - it may be worth reminding ourselves that one of the flight crew - identified as "the captain" - told the driver of a tug immediately after the crash that he'd lost "all power and avionics". No nav lights or beacons can be discerned on the footage of the approach - despite the fact that it was such a gloomy day.