NTSB said it's examining the Amtrak engineer's cell phone and cell phone records to determine whether the engineer made any calls, texted or sent messages while operating the train.
"Although the records appear to indicate that calls were made, text messages sent, and data used on the day of the accident, investigators have not yet made a determination if there was any phone activity during the time the train was being operated," the report said. "Investigators are in the process of correlating the time stamps in the engineer's cell phone records with multiple data sources including the locomotive event recorder, the locomotive outward facing video, recorded radio communications, and surveillance video."