I'm an ex-ATC, non-pilot, with a couple of questions for the experts:
1. Given the reportedly gusty wind conditions, is it possible that the two engines may have flamed out/stalled at that critical moment - 600' up and 2nm out?
2. Assuming there were no fuel problems, with the aircraft's multitude of electronic and digital systems controlling almost all aspects of the plane's operations, how uncommon or unlikely is it for both engines not to respond to throttle commands?