Fans look on to the field after a sudden power outage in the second quarter during Super Bowl XLVII at the Mercedes-Benz Superdome on February 3, 2013 in New Orleans, Louisiana. (Photo by Jared Wickerham/Getty Images)
By KEVIN McGILL and MICHAEL KUNZELMAN / Associated Press
NEW ORLEANS (AP) -- The cause of a 34-minute blackout at the Super Bowl remains under investigation, but public records show that Superdome officials were worried about a power outage several months before the big game.
An Oct. 15 memo released Monday by the Louisiana Stadium & Exposition District, which oversees the Superdome, says tests on the dome's electrical feeders showed they had "some decay and a chance of failure."
The memo also says 2011 blackouts that struck Candlestick Park, where the San Francisco 49ers were playing a nationally televised Monday night football game, was one reason for ordering the tests.
The state board later authorized spending nearly $1 million on Superdome improvements, including more than $600,000 for upgrading the dome's electrical feeder cable system.