It was close, I think. Had the pilot flying not immediately fought off this guy's attempt, it could have been tragic. I'm a retired airline employee, though not a pilot. But in working on delayed or canceled flights, working with maintenance employees, you get to know some stuff. When a pilot pulls those fire suppression handles, it also causes the engine's fire bottles to go off, which effectively kills the fire. There is a delay before the bottles go, but once they do I am pretty sure you can't restart those engines in flight. As to the what blueman above said, airliners can glide, but it's a dicey proposition. You have to have a nearby airport and you only get one shot at landing, and with no power you probably don't have much in braking or slowing down your approach. I'm only aware of two incidents of this nature that succeeded - Air Transat 236, and the Air Canada ''Gimli glider'' that actually couldn't make an airport, and instead landed at a disused airfield that was hosting car races at the time. Crazy stuff, that somehow all turned out well.