Howdy, CodeToad. Always a pleasure to cross your path.
I heard the B777 doesn’t even have a Total Electrical Failure checklist because the chance of that is remote to 10 to the power of 9.
Saw that on a pro-pilot forum.
I’ve often wondered what a ‘Total Electrical Failure’ would look like on a 777? I mean no power from engines, APU, batteries, or the whirlybird?
As you probably know, these systems are rated as far as likelihood of failure, and the power system control is a Level A system. ETOPS was designed in from the beginning with the 777, so accounting for such a failure is probably concluded as going to result in loss of the aircraft.