1 unit shut down at Limerick nuclear plant

FILE - Clouds spew from a cooling tower at PECO's nuclear generating station in Limerick, Pa., in this Feb. 14, 1997, file photo. (AP Photo/George Widman, file)

April 19, 2012 7:19:52 PM PDT
Officials say an electrical malfunction on the non-nuclear side of a suburban Philadelphia power plant has forced one of the two reactors to be shut down.