I know they have recurring problems with tyres (and I'm sure they had other design flaws too). But afaik the main culprit in the crash was a piece of titanium

I know they have recurring problems with tyres (and I'm sure they had other design flaws too). But afaik the main culprit in the crash was a piece of titanium that fell off from another airplane and was left on the runway. This metal-piece cut into the tyre and caused an explosion.