Um, as a humble avionics guy I have great respect for professional pilots and would never gainsay their highly informed opinions. But I have one small reservation, and that is the assumption that the clockwork was fully wound and functioning perfectly. There have been instances in the past of multiple electrical systems failure and an unplanned power-down can affect the systems in unpredictable ways. Some reports say the pilot asked for emergency assistance to be available on landing. This would indicate that he had some sort of problem with the airplane. We don't know what the problem was but it could have been another electrical failure and could have disabled instruments and annunciators. Or even caused unplanned deployment of the
? Now you can all rap my knuckles again and send me to bed without any supper.