[metmom]

Witness said both engines were sputtering.. Could it have run out of fuel?

Would it have burned like that if it were out of fuel?

[Yosemitest]

No.
Minimum fuel reserve for that size aircraft and the track of that flight, it's not probable.

[Obama_Is_Sabotaging_America]

Good point. I didn’t see video of the fire, but it’s possible a fuel pump malfunction where there’s gas but the engines aren’t getting any. Or other computer glitch where engines are running too lean.. Pilot error too low to recover like what happened with Asiana Airlines, etc.