BOSTON (WBZ NewsRadio) — There's new information about the state of the Orange Line train after this month's slow-speed derailment.
"We're really going through this with a fine-tooth comb," said Massachusetts Bay Transportation Authority Assistant General Manager Jeff Gonneville.
New Orange Line trains have derailed six times outside Wellington Station, and MBTA investigators are still trying to figure out the reason why.
The latest derailment happened mid-month and buses are still replacing the trains.
Officials said the train derailed while going over a switch and that switch is 46 years old. They add that switch is now being replaced.
Gonneville said the agency is also looking at the new trains themselves. "We really want to look to determine and ensure that the vehicles subsystems and components so to speak, are functioning the way that they were designed to function," said Gonneville.
WBZ NewsRadio's Karyn Regal (@Karynregal) Reports