There have so far been no indications that equipment in the state-owned stadium was at fault. Officials with Entergy Corp., the parent company of the utility that serves the dome, have said the outage was caused by an electrical relay device it installed specially to prevent a power failure at the stadium. But it's unclear whether the device had a design flaw or a manufacturing defect or if there was a problem in the way was set to trigger a break in current in the event of a power surge or other electrical problem.
Entergy and the management company that runs the dome for the state, SMG, recently announced the hiring of Utah-based forensic engineer John Palmer to perform an independent analysis of the outage. Thornton, an SMG vice president, told the board that Entergy is bearing the full cost of that analysis. It is unclear when Palmer will report.