THE BLACK BOX
The NTSB retrieved the event recorder that was in the locomotive at the rear of the train but hasn’t been able to download its data and has gone to the manufacturer for help, Dinh-Zarr said. The event recorder contains speed and braking information.
The NTSB also hasn’t been able to extract a recorder from the forwardfacing video camera in the train’s mangled first car, Dinh-Zarr said. She said the wreckage cannot be safely entered yet because