Originally Posted by AirBear

Hop-A-Jet has the highest platinum rating with ARGUS and has been rated since 2012. So if you can believe ARGUS they're not a "fly by night" operater.

The fuel they took on at OSU was just 2025lbs, around an hour's worth as others have stated.

Once we see the FDR and CVR readouts we'll know a lot more. You would think if it was fuel starvation they would have at least declared "min fuel". And I'm assuming the 604 would give a low fuel warning.

On other aviation websites speculation is the fuel iced up. But with either fuel/oil heat exchanger or another fuel heating system I don't see how that could happen. I almost never took prist once I got off the Citation Ultra. We were supposed to take it rarely just to kill off any growths in the fuel tanks.