This is baffling, at first I thought "up to 7 days before they find it"...now I am not so sure.
If reports are true that theaircraft turned back, it begs more questions than answers:
-Why was it no longer transmitting any comms, either radio, transponder, acars, nothing? (I would hazard a guess at fire onboard)
- What was so serious that necessitated a turn back?
- Why did they descend (if indeed eyewitnesses did see the aircraft), did they lose all instruments? all electrics, all displays, which explains loss of comms, etc as well?
- I was around 2AM...dark night, did they lose sight of mainland, no instrumentation, descended to get visual?
If so, this aeroplane could be absolutely anywhere.
