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DENVER — About 80 RTD train to the plane passengers had to walk on a 50-foot-high bridge after the electric commuter rail line lost power Tuesday afternoon.

The train stalled near the airport at 78th Avenue and Gun Club Road around 4:40 p.m.

On Wednesday, RTD said a lightning strike severed a carrier wire, cutting power to the train. Firefighters were called in to help rescue the passengers who were stranded on a bridge.

Everyone was OK, but passengers had to be quick to find another way to get to Denver International Airport.

At 5:30 p.m., RTD said service resumed from Union Station to 40th Avenue. Bus shuttles were being used from 40th to Denver International Airport.

Power was restored late Tuesday night, but not before some passengers said they missed their flights.

The A line has been plagued by power problems and with issues with its safety equipment at crossings. RTD has called it an “unfortunate sequence of events.”

Trains were back up to speed and running on time on Wednesday morning.