Electrical equipment issue caused O`Hare runway outage - Boston News, Weather, Sports | FOX 25 | MyFoxBoston

Electrical equipment issue caused O`Hare runway outage

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CHICAGO (Sun-Times Media Wire) -

A brief power outage at O'Hare International Airport on Thursday night that darkened the lights on four runways stemmed from an issue related to electrical equipment.

For about 40 minutes Thursday night, flights were affected when four runways were closed after a power outage darkened them. The lights went out, all on the north airfield, about 9:20 p.m., Department of Aviation spokeswoman Karen Pride said. The problem was resolved by 10 p.m.

The affected runways were primarily arrival runways, she said.

On Friday morning, city Department of Aviation spokesman Gregg Cunningham said that, "all airfield lighting is operational" and all airport operations were running normally.

The power loss was related to electrical equipment, according to Aviation. Cunningham said it was not a ComEd issue, and O'Hare has redundant systems to kick in when there is a power loss anywhere at the airport.

The exact number of flights delayed by the power outage was not immediately available following the outage, Pride said.

Flights were also affected Thursday due to low visibility, according to Aviation. More than 180 flights were cancelled at O'Hare and flights at Midway were delayed.

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