MacFarlane also obtained other emails exchanged among federal officials about the cause. "The power outage at the dome appears to be mechanical/technical issue. Power is estimated to be restored in approximately 15 mins," an email said.
It took more than 30 minutes to restore power and resume the game.
Officials said an "abnormality" in the power system triggered an automatic shutdown. A spokesman from Entergy Corp. later told the Associated Press that the blackout was caused by a faulty electrical relay installed in 2011 as part of an upgrade made in anticipation of the game.
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