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Article: NRC EVENT NOTIFICATION REPORT FOR AUG. 22: AUTOMATIC REACTOR SCRAM DUE TO A MAIN TURBINE TRIP

Article from:
US Fed News Service, Including US State News
Article date:
August 22, 2008
Copyright

The Nuclear Regulatory Commission issued the following notification received:

Power Reactor

Facility: COLUMBIA GENERATING STATIONRegion: 4 State: WAUnit: [2] [ ] [ ]RX Type: [2] GE-5NRC Notified By: MARSHA EADESHQ OPS Officer: VINCE KLCO

Emergency Class: NON EMERGENCY10 CFR Section: 50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL

AUTOMATIC REACTOR SCRAM DUE TO A MAIN TURBINE TRIP

"Following a downpower to 65% for maintenance on one of the reactor feedwater turbines, a main turbine digital electro-hydraulic (DEH) quadvoter valve, that had failed a previous surveillance, was replaced. During the operability testing of ...

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