Federal investigators say the train was travelling at 102 mph, when engineer applied the locomotive’s emergency braking system just after entering the curved stretch of track. The maximum allowed speed on the curve is 50 miles per hour. The brakes slow the train to 102 mph before the locomotive and all seven passenger cars derail. Black box event recordings and video from the train have yet to be fully analysed. NTSB experts believe the derailment would have been prevented by installation of an advanced safety system called “positive train control”. Authorities have offered no explanation for why the locomotive was traveling so fast. They intend to interview the engineer in the next few days. NTSB official:
This person has gone through a very traumatic event and we want to give him an opportunity to convalesce for a day or two. But that is certainly a very high priority for us.