Article: NRC EVENT NOTIFICATION REPORT FOR JAN 11: REACTOR SCRAM WITH STUCK OPEN MAIN TURBINE CONTROL VALVES

The Nuclear Regulatory Commission issued the following notification received:

Power Reactor

Facility: MONTICELLORegion: 3 State: MNUnit: [1] [ ] [ ]RX Type: [1] GE-3NRC Notified By: ROBERT SCHREIFELSHQ OPS Officer: MARK ABRAMOVITZ

REACTOR SCRAM WITH STUCK OPEN MAIN TURBINE CONTROL VALVES

"At 1528 hours Central Time, a RPS trip occurred, all rods fully inserted. Turbine valve testing was in progress. A group 1 isolation occurred with all MSIVs closing. A partial group 2 occurred due to low reactor water level. All safety systems (valves) operated correctly. Currently reactor pressure/cooldown in progress using HPCI in pressure control, normal condensate and ...

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