Event Notification Report for April 28, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/27/2001 - 04/28/2001
EVENT NUMBERS
37950
Power Reactor
Event Number: 37950
Facility: OCONEE
Region: 2 State: SC
Unit: [] [2] []
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: JAMES WEAST
HQ OPS Officer: DOUG WEAVER
Region: 2 State: SC
Unit: [] [2] []
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: JAMES WEAST
HQ OPS Officer: DOUG WEAVER
Notification Date: 04/28/2001
Notification Time: 21:10 [ET]
Event Date: 04/28/2001
Event Time: 16:00 [EDT]
Last Update Date: 04/28/2001
Notification Time: 21:10 [ET]
Event Date: 04/28/2001
Event Time: 16:00 [EDT]
Last Update Date: 04/28/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
10 CFR Section:
50.72(b)(3)(ii)(B) - UNANALYZED CONDITION
Person (Organization):
PAUL FREDRICKSON (R2)
PAUL FREDRICKSON (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | N | 0 | Cold Shutdown | 0 | Cold Shutdown |
UNANALYZED CONDITION - BORON RESIDUE ON REACTOR VESSEL HEAD PENETRATIONS
Preliminary reactor head visual inspection indicates a small amount of boron residue surrounding four control rod drive mechanism head penetrations. These indications are similar to those previously reported for unit one and unit three. Additional inspection will be performed to determine the cause of identified boron accumulation.
The licensee notified the NRC resident inspector.
Preliminary reactor head visual inspection indicates a small amount of boron residue surrounding four control rod drive mechanism head penetrations. These indications are similar to those previously reported for unit one and unit three. Additional inspection will be performed to determine the cause of identified boron accumulation.
The licensee notified the NRC resident inspector.