Black box too dangerous to access key to solving New Jersey train crash

HOBOKEN, NJ - SEPTEMBER 29: Passengers rush to safety after a NJ Transit train crashed in to the platform at the Hoboken Terminal September 29, 2016 in Hoboken, New Jersey. New Jersey emergency's management system is reporting more than 100 people were injured in the crash. (Photo by Pancho Bernasconi/Getty Images)
Caption
HOBOKEN, NJ - SEPTEMBER 29: Passengers rush to safety after a NJ Transit train crashed in to the platform at the Hoboken Terminal September 29, 2016 in Hoboken, New Jersey. New Jersey emergency's management system is reporting more than 100 people were injured in the crash. (Photo by Pancho Bernasconi/Getty Images)

Credit: Pancho Bernasconi

Credit: Pancho Bernasconi

Authorities investigating the cause of Thursday morning's train crash in Hoboken, New Jersey, still need to recover a black box from the scene. According to the National Transportation Safety Board, that event recorder — which is located at the front of the train — is still too dangerous to access.

Explore>> Read more trending stories

The train's other data recorder has already been retrieved, but it wasn't working when the accident happened.

If the black box at the front of the train is defective, as well, New Jersey Transit could have a federal issue on its hands.

Explore>> Related: Man ‘very lucky to be alive’ after surviving New Jersey train crash, 9/11 terrorist attacks

These boxes are supposed to record how fast the train was going at the time of the crash. The train's engineer said it was traveling at 10 mph when it entered the station, though experts told NPR it would have had to have been going 20 mph or more to crash through the barriers that it did.

The train's engineer says he has no memory of the crash and woke up on the floor after the accident. He told investigators his cellphone was turned off and stored during the trip.

Explore>> Related: Young mother killed in Hoboken train crash recently moved to New Jersey

New Jersey Transit was already under federal scrutiny for safety violations. Those violations reportedly included trains running red signals and not following safety protocols in train yards.