Metro

Panel ‘blown off’ Green Line trolley door at Park Street

Part of a Green Line trolley door was seen at Park Street.

Maggie Robinson

Part of a Green Line trolley door was seen at Park Street.

Part of a door on an MBTA Green Line trolley fell off Tuesday near Park Street Station in downtown Boston, officials said.

The trolley was approaching the eastbound Green Line platform at the station at 8:35 a.m., when one of the door’s four panels separated from the train, said Joe Pesaturo, MBTA spokesman. No injuries were reported, he said.

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The trolley, which began its inbound trip at Heath Street on the E branch of the line, was taken out of service. A full investigation has begun at the Green Line maintenance facility, Pesaturo said.

Maggie Robinson, 21, a student at the Wentworth Institute of Technology, said she was sitting in a seat near the door when the panel was “blown off” and left behind in the tunnel.

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Before the incident occurred, Robinson said, the train had stopped for several minutes between the Arlington and Boylston stations, as a few inspectors came into the trolley and looked at the doors. Robinson said it was not clear why they were looking at the doors.

The train continued toward Park Street after the inspectors left. Then, Robinson said, the panel came off and people screamed for the driver to stop the train. The train continued to move for about a minute until it came to a stop at Park Street, she said.

The trolley was “decently crowded,” Robinson said, and one woman was standing on the stairs next to the door when the panel came off. Robinson said she and another passenger grabbed the woman’s jacket, “and she moved further into the train a few seconds later.”

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Pesaturo said the door had not malfunctioned before, but inspectors came onto the trolley after the operator reported before 8:30 a.m. that the train was experiencing “power problems,” which were “affecting the overall operation of the train.”

Pesaturo said one of the Green Line inspectors is facing disciplinary action for failing to ensure that the trolley door was secured in the closed position before the train proceeded to Park Street.

“Because of his failure to follow established procedures, a segment of the door dislodged after making contact with a part of the subway infrastructure,” Pesaturo said.

Pesaturo said this trolley was 27 years old, and was among the 86 Green Line trolleys that will be rebuilt over the next two years.

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