Nuclear, Policy & Regulation, Reactors

NRC Cites Diablo Canyon for Broken Cooling System Switch

By Editors of Power Engineering

The Nuclear Regulatory Commission has cited Diablo Canyon nuclear power plant with a low-risk safety finding due to a broken switch.

NRC indicated the switch, which rendered a reactor cooling system inoperable for a year and a half, was inadequately maintained, the San Luis Obispo Tribune reported. The broken switch, which controlled emergency core cooling systems, was discovered during a test in May.

Pacific Gas and Electric Company, the operators of the plant, plan to appeal the citation.

Diablo Canyon was previously cited by NRC in 2015 for not getting approval for an evacuation plan.

PG&E plans to retire Diablo Canyon when its operating licenses expire in 2024 and 2025.