Train plows through semi high centered on track - GIF

[schuylergrace]

I wonder what was in the trailer that was so flammable.

[Frank S]

I wonder what was in the trailer that was so flammable.

That could have been most anything flammable enough to briefly cause a fire at the rear of the trailer. Since there are no evidence of cargo spillage and no warning placards posted on the sides of the trailer, he was not hauling any or enough materials to be hazmat the trailer could have been mostly empty, leaving the construction materials of the trailer to be the prime suspect.it is possible of a high enough magnesium content in the aluminum alloy the rear of the box frame and doors could have been a possible igniter the wood panel covering of the inside on the walls and on the doors, or for all we know he may have had s single pallet of rubbing alcohol or a household cleaner in plastic bottles which could have disintegrated leaving no debris, it could have even been a accumulation of dust or powder from a burst sack of flour that had migrated to the back of the trailer. There are a whole host of seemingly innocuous things that can become flammable under the right conditions.
Ther fire appeared to quickly flare but not in an explosive manor also not very intense or with a lot of sustaining fuel to maintain it