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Article: NRC EVENT NOTIFICATION REPORT FOR APRIL 22: UNIT 1 MANUAL REACTOR TRIP DUE TO MAIN TURBINE VIBRATIONS

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

The Nuclear Regulatory Commission issued the following notification received:

Facility: SURRYRegion: 2 State: VAUnit: [1] [ ] [ ]RX Type: [1] W-3-LP,[2] W-3-LPNRC Notified By: HUNTER SCHILLHQ OPS Officer: JOHN KNOKE

Emergency Class: NON EMERGENCY10 CFR Section:50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION

* Table omitted (The document can be viewed at http://www.nrc.gov/reading-rm/doc-collections/event-status/event/2008/20080422en.html#en44152)

UNIT 1 MANUAL REACTOR TRIP DUE TO MAIN TURBINE VIBRATIONS

"While ramping the Unit 1 Turbine following a forced unit outage, vibrations on the number 4 bearing increased to 13.9 mils. The ramp was stopped ...

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