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DENVER — RTD’s maligned A Line suffered more delays Thursday morning, one day after a power outage caused long delays on the train to Denver International Airport.

Train service was halted between the 61st and Pena Station because of a damaged power wire, RTD said on its website at 10:15 a.m.

Bus shuttles operated between the station and the airport until about 5:30 p.m. when power was restored. RTD said train service would be about 15 minutes slower than normal until further notice while additional repairs continued.

RTD said the problem is similar to what happened Wednesday, when a power outage forced hundreds of passengers to evacuate and switch trains, causing more than an hour delay.

Dozens of passengers waiting for the A Line at Union Station were also set back.

RTD said it was sending a rescue train to get the struck train between DIA and the 61st and Pena Station. There was no estimate for when full service will resume. RTD said on Twitter that full fares are still required to take the train on Thursday.

“We appreciate your patience as we work to get this fixed as soon as possible,” RTD said on its website.

The A Line has been plagued by by switching and electrical problems since its ballyhooed opening in April.

There were delays on June 9 because of issues with the positive train control switch and wayside signals. On June 4 and May 22, there were delays because of crossing issues.

Power problems stopped the trains on May 16, 21, 23 and 24. On May 24, a lightning strike cut power to the line, stranding 80 passengers who had to walk on a 50-foot-high bridge.

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