Cause found for Superdome failure

An outside expert investigating the cause of a partial power

outage during Super Bowl XLVII has confirmed that the failure

occurred because a relay device malfunctioned.

Utah-based forensic engineer John Palmer released his findings

Thursday.

Entergy, the company that supplies electricity to the Superdome,

and the stadium’s management company hired Palmer to perform an

independent analysis of the Feb. 3 outage.

Entergy has said it believed the outage was caused by an

electrical relay device it installed specially to prevent a power

failure at the dome. Entery New Orleans President and CEO Charles

Rice says the company is pleased that Palmer’s analysis confirmed

the relay operated in an unpredictable manner.

The partial blackout delayed the game between the Baltimore

Ravens and San Francisco 49ers for 34 minutes.