BOSTON (CBS) – The new Orange Line trains have been taken out of service again.
The MBTA said Tuesday that two new six-car trains have been temporarily removed, but there’s no impact to overall service.
“Inspectors identified a fault with the bolsters which is being corrected to ensure the vehicles are reliable & safe for the duration of their service lives. We expect to return them to service later this week,” the T said in a tweet.
A bolster is a steel center beam between the side frames of the bottom truck of each car, an MBTA spokesperson told WBZ-TV. It allows the truck of the car to rotate as it navigates turns in the track.