Weekend flyer here - no opinions, only questions, so pls treat accordingly. Gald someone else is questioning this so called "experience pilot". Out if interest, if it had happened further out and the back up batteries or bus had failed but all engines were still running, plane can still be controlled, right? Hyrd. units would be pressurised by the engines and gear could still be lowered also - is that correct? What would the crew have available to them? Analogue compass only? Could the APU be started if relevant altitude was reached, and even if it could, would the crew even know their altitude (could ATC provide an accurate reading?)? Are there SOPs covering such an event? Pretty amazing set of circumstances whatever the cause. Thanks.