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Design flaw, human errors blamed for Super Bowl blackout

Friday, March 22, 2013 - 10:00am

A combination of technical and communication failures contributed to the partial power outage that disrupted this year's Super Bowl, an independent analysis has determined, utility Entergy New Orleans said Thursday.

The power was cut off to half the Mercedes-Benz Superdome early in the third quarter of Super Bowl XLVII between the Baltimore Ravens and San Francisco 49ers, causing a 34-minute delay in the February game.

Dr. John Palmer of Palmer Engineering & Forensics said a recently installed relay had a "design defect" that caused it to trip in an unpredictable way.

He said the device's trip level had been left at the factory default setting, which was inappropriate for its application in the dome.

Palmer's report also cited "inadequate communication between the manufacturer and the utility" as a contributing factor.

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CNN's Joe Sutton and Jim Kavanagh contributed to this report.
 

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