I'm curious about the incendiary device, Pace. Is there any history of using such devices to bring down planes? Why would a terrorist organization go for an incendiary rather than a bomb with a more certain effect? Why would a terrorist organization want to leave any ambiguity about its role in the disaster?
I think terrorism is looking less and less likely but a planted incendiary device cannot be ruled out.
There is a complete lack of terrorist claims so in all probability something went wrong where a fire started in the avionics bay or near there
Having experienced dense smoke at night in the cockpit of a business jet 12 years ago I really feel for those guys. Smoke of that type is acrid and awful to breath if they also had flames it would have been a nightmare.
Add rapid decompression and a possible failure of the oxygen system? A horrendous situation. My thoughts go to them and their PAX