The glitch happened Saturday night after the Philadelphia Flyers beat the Ottawa Senators.
Cheering hockey fans were exiting the building and using the escalator when the staircase suddenly started to accelerate.
People were thrown from the speeding escalator and crashed into each other as they reached the bottom floor. Some jumped over the side of the escalator.
"(The) escalator got a little excited about the Flyers win too," Meghan McGreevy wrote on Facebook after posting a video of the human pile-up.
Fortunately, no one was seriously injured.
Ike Richman, owner of the Flyers and the Wells Fargo Center, issued a statement to WVIT:
“We immediately closed it down to protect our patrons and notified the operator. We are working with the operator on investigating this incident. We did not use that particular escalator during (Saturday's Philadelphia 76ers) game. We expect it to be working in time for Tuesday's Sixers game, which is our next event.”
Escalator got a little excited about the flyers win too...#flyers #philadelphia