Event Notification Report for April 08, 2007
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/07/2007 - 04/08/2007
EVENT NUMBERS
43291
Power Reactor
Event Number: 43291
Facility: COLUMBIA GENERATING STATION
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: RYAN STOUT
HQ OPS Officer: JOHN MacKINNON
Region: 4 State: WA
Unit: [2] [] []
RX Type: [2] GE-5
NRC Notified By: RYAN STOUT
HQ OPS Officer: JOHN MacKINNON
Notification Date: 04/09/2007
Notification Time: 04:26 [ET]
Event Date: 04/08/2007
Event Time: 22:32 [PDT]
Last Update Date: 04/09/2007
Notification Time: 04:26 [ET]
Event Date: 04/08/2007
Event Time: 22:32 [PDT]
Last Update Date: 04/09/2007
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
10 CFR Section:
50.72(b)(2)(i) - PLANT S/D REQD BY TS
Person (Organization):
CHUCK CAIN (R4)
CHUCK CAIN (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 95 | Power Operation | 85 | Power Operation |
TECHNICAL SPECIFICATION REQUIRED SHUTDOWN
"Energy Northwest is reporting initiation of a planned shutdown of Columbia Generating Station Pursuant to 10 CFR 50.72(b)(i), 'The initiation of any nuclear plant shutdown required by the plant's technical specifications.' This plant shutdown is undertaken prior to 1032 PDT on 4/9/07 which is the expiration of the completion time of Technical Specification Limiting Condition for Operation 3.8.7 Required Action C. This plant shutdown is undertaken due to complications from recovery of the failure of a backup power supply to power converter E-IN-2A/2B reported in event notification # 43290."
The NRC Resident Inspector was notified of this event by the licensee.
"Energy Northwest is reporting initiation of a planned shutdown of Columbia Generating Station Pursuant to 10 CFR 50.72(b)(i), 'The initiation of any nuclear plant shutdown required by the plant's technical specifications.' This plant shutdown is undertaken prior to 1032 PDT on 4/9/07 which is the expiration of the completion time of Technical Specification Limiting Condition for Operation 3.8.7 Required Action C. This plant shutdown is undertaken due to complications from recovery of the failure of a backup power supply to power converter E-IN-2A/2B reported in event notification # 43290."
The NRC Resident Inspector was notified of this event by the licensee.