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Is it meant to work like that?


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The NTSB has released its preliminary report into the East Palestine, Ohio, train derailment. Apparently

Track side fault detection equipment detected a hot bearing on one of the cars.

The driver was notified.

The driver applied the dynamic (gentle) braking system in order to stop and inspect.

The hot bearing reached a sufficiently high temperature to rupture the pneumatic brake line where air pressure holds the brakes OFF.

The loss of air pressure caused the emergency brakes to be applied.

This caused a number of cars to concertina and leave the tracks.

So the safety system caused the derailment?


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