A 56-year-old woman from South Boston tried to ride her motorized wheelchair up an escalator at a Subway station in July.
Gravity kicked in, sending the woman and her scooter tumbling backward. A man nearby tried to run over and help, and he was almost pulled down in the process. An MBTA worker then ran over and pushed the emergency stop button.
The woman in the chair was able to get up and walk away with no injuries.
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