One of the data recorders on the New Jersey transit train that crashed last week wasn't working, further complicating investigators' struggle to figure out exactly what went wrong, authorities said Sunday.
A woman was killed and more than 100 other people were injured Thursday morning when the NJ Transit train slammed into Hoboken Terminal.
Authorities have said the terminal's signals appeared to be working normally but that the train was traveling far too fast, but Bella Dinh-Zarr, vice chairwoman of the National Transportation Safety Board, said at a news conference Sunday that the engineer has told investigators that he was going only 10 mph.
That discrepancy could be resolved with data from the train's two event recorders, or "black boxes." Only one of the recorders has been recovered — and it turned out not to have been working during the trip, Dinh-Zarr said.