Newly released video shows moment new Orange Line cars derailed in March

The MBTA has released a video showing the moment the new Orange Line train cars derailed near Wellington Station in March.

In the video, the train can be seen slowly approaching a curve in the tracks. A few of the cars toward the middle of the train appear to jostle around near the curve, and something near the tracks appears to fall over. Then, what appears to be a small, fiery explosion blasts near the cars, and the train shudders. Smoke billows from the area, and the train stops.

When the derailment happened around 11:40 a.m. on March 16, shuttle buses took over for train service between Oak Grove and Sullivan Square stations while workers put the train back on the tracks. No one was injured during the incident.

The derailment was attributed to an old track switch and pads on the train that had worn down more quickly than anticipated, according to WCVB.

Both the new Orange Line and Red Line train cars were removed from service following the derailment. The MBTA is supposed to announce when they’ll be back in service this month.

The replacement of older trains has hit multiple snags over the last few years. The new Orange Line train cars were taken out of service three times between September 2019 and March 2020.