Event Notification Report for July 24, 2008
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/23/2008 - 07/24/2008
Research Reactor
Event Number: 44372
Rep Org: REED COLLEGE
Licensee: REED INSTITUTE
Region: 4
City: PORTLAND State: OR
County: MULTNOMAH
License #: R-112
Agreement: Y
Docket: 05000288
NRC Notified By: STEPHEN FRANTZ
HQ OPS Officer: STEVE SANDIN
Licensee: REED INSTITUTE
Region: 4
City: PORTLAND State: OR
County: MULTNOMAH
License #: R-112
Agreement: Y
Docket: 05000288
NRC Notified By: STEPHEN FRANTZ
HQ OPS Officer: STEVE SANDIN
Notification Date: 07/29/2008
Notification Time: 14:30 [ET]
Event Date: 07/24/2008
Event Time: 14:00 [PDT]
Last Update Date: 07/29/2008
Notification Time: 14:30 [ET]
Event Date: 07/24/2008
Event Time: 14:00 [PDT]
Last Update Date: 07/29/2008
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
NEIL O'KEEFE (R4)
DAN HUGHES (NRR)
NEIL O'KEEFE (R4)
DAN HUGHES (NRR)
TEST REACTOR EXCEEDED LICENSED POWER LIMIT DURING CALIBRATION
"Performing calorimetric power calibration of nuclear instruments with a new fuel element installed per SOP-44. Indicated power was 230kW. Calculated power after 70 minutes was 281kW, in excess of licensed power of 250kW. Also, due to miscalibration the 110% scrams on linear and percent power would not occur until an actual power of 124%. Reactor power was lowered and another calibration confirmed the error. The reactor was shutdown and the NRR Project Manager (Dan Hughes) was called."
"Performing calorimetric power calibration of nuclear instruments with a new fuel element installed per SOP-44. Indicated power was 230kW. Calculated power after 70 minutes was 281kW, in excess of licensed power of 250kW. Also, due to miscalibration the 110% scrams on linear and percent power would not occur until an actual power of 124%. Reactor power was lowered and another calibration confirmed the error. The reactor was shutdown and the NRR Project Manager (Dan Hughes) was called."
Power Reactor
Event Number: 44363
Facility: WATTS BAR
Region: 2 State: TN
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: DOUG HOLT
HQ OPS Officer: JOE O'HARA
Region: 2 State: TN
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: DOUG HOLT
HQ OPS Officer: JOE O'HARA
Notification Date: 07/24/2008
Notification Time: 15:03 [ET]
Event Date: 07/24/2008
Event Time: 15:02 [EDT]
Last Update Date: 07/24/2008
Notification Time: 15:03 [ET]
Event Date: 07/24/2008
Event Time: 15:02 [EDT]
Last Update Date: 07/24/2008
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):
MARK LESSER (R2)
MARK LESSER (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 98 | Power Operation |
TECH SPEC REQUIRED SHUTDOWN DUE TO LOSS OF ESSENTIAL RAW COOLING WATER PUMP WITH 2 EDG'S OOS
"WBN Unit 1 experienced a failure of the B-A ERCW pump on July 21, 2008, at 2:46 p.m. EDT. The plant entered LCD 3.7.8, Condition A, for one ERCW train inoperable and LCD 3.8.1, Condition C, with two required DGs in Train A inoperable concurrently. Required Actions for LCO 3.7.8 and LCD 3.8.1 required restoration of the inoperable ERCW train and one DG to OPERABLE status in 72 hours, respectively. Plant shutdown was initiated in accordance with LCD 3.7.8, Condition B and LCD 3.8.1, Condition G when the above Required Actions were not met. The root cause of the pump failure is unknown at this time. An event team has been set-up to determine cause of pump failure. Currently, the unit is performing a control shutdown, and all systems are functioning as expected."
The licensee does not expect the ERCW pump to be returned to service and will downpower at 15% per hour. The licensee expects to be in Mode 3 by 2030 EDT. All required safety systems for safe shutdown are operable.
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM BEN HUNT TO JOE O'HARA AT 2046 ON 7/24/08 * * *
"The TS required shutdown has been terminated on 7/24/08 at 1910 EDT, based on the receipt of an Emergency TS change. The plant exited LCO 3.8.1, Condition C and LCO 3.7.8, Condition A, and entered new LCO 3.7.8, Condition C. The revised TS will allow continued operation for an additional 7 days based, in part, on the implementation of an NRC approved Temporary Alternation. It is expected that the failed ERCW pump will be repaired within the new 10 day allowed outage time as specified in the Emergency TS change for LCO 3.7.8, Condition C (3 days were already used due to the inoperability of the B-A ERCW Pump occurred on 7/21, this leaves approximately 7 days left in the new action time.)"
The licensee notified the NRC Resident Inspector.
Notified R2DO(Lesser).
"WBN Unit 1 experienced a failure of the B-A ERCW pump on July 21, 2008, at 2:46 p.m. EDT. The plant entered LCD 3.7.8, Condition A, for one ERCW train inoperable and LCD 3.8.1, Condition C, with two required DGs in Train A inoperable concurrently. Required Actions for LCO 3.7.8 and LCD 3.8.1 required restoration of the inoperable ERCW train and one DG to OPERABLE status in 72 hours, respectively. Plant shutdown was initiated in accordance with LCD 3.7.8, Condition B and LCD 3.8.1, Condition G when the above Required Actions were not met. The root cause of the pump failure is unknown at this time. An event team has been set-up to determine cause of pump failure. Currently, the unit is performing a control shutdown, and all systems are functioning as expected."
The licensee does not expect the ERCW pump to be returned to service and will downpower at 15% per hour. The licensee expects to be in Mode 3 by 2030 EDT. All required safety systems for safe shutdown are operable.
The licensee has notified the NRC Resident Inspector.
* * * UPDATE FROM BEN HUNT TO JOE O'HARA AT 2046 ON 7/24/08 * * *
"The TS required shutdown has been terminated on 7/24/08 at 1910 EDT, based on the receipt of an Emergency TS change. The plant exited LCO 3.8.1, Condition C and LCO 3.7.8, Condition A, and entered new LCO 3.7.8, Condition C. The revised TS will allow continued operation for an additional 7 days based, in part, on the implementation of an NRC approved Temporary Alternation. It is expected that the failed ERCW pump will be repaired within the new 10 day allowed outage time as specified in the Emergency TS change for LCO 3.7.8, Condition C (3 days were already used due to the inoperability of the B-A ERCW Pump occurred on 7/21, this leaves approximately 7 days left in the new action time.)"
The licensee notified the NRC Resident Inspector.
Notified R2DO(Lesser).