And, a further correction, the self ignition temperature of Toray 3900-2 epoxy is a mere and flammable 580 degrees F
Wait, so... if anything in contact with the skin of the upper fuselage heats to 300 degrees centigrade (like maybe an overloaded electrical cable run or the aformentioned battery?) the fuselage skin catches fire, and that fire is self sustaining? And if this were to happen in flight for some reason, would the airflow over the fuselage act like a blacksmith's bellows and turn the top rear of the plane into a giant roman candle within a few seconds until the charred remnants disintegrated in flight, showering burning confetti and smoking corpses over a vast area?
Or has somebody tested this and proved that it definitely won't happen like that and that the fire hazard is only relevant in a post crash scenario?