SAN ONOFRE (AP) — Federal regulators have uncovered security problems at the troubled San Onofre nuclear plant that could result in Southern California Edison being slapped with violations.

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A Nuclear Regulatory Commission statement Thursday said inspectors reviewed records, observed activities and interviewed personnel during an inspection in May.

The inspection found apparent violations, but many details were withheld because of security concerns.

The problems cited include failure to develop procedures to monitor security of certain electronic devices at the plant.

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An Edison statement says the problems had been addressed and corrected before the NRC inspection, and the plant treats all deficiencies seriously, but gave no further details, citing security concerns.

San Onofre has been closed for more than four months with because of excessive wear on some equipment.

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