U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
01/03/2003 - 01/06/2003
** EVENT NUMBERS **
39481 39487 39488
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|Power Reactor |Event Number: 39481 |
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| FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 12/31/2002|
| UNIT: [] [2] [] STATE: AZ |NOTIFICATION TIME: 11:15[EST]|
| RXTYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 12/26/2002|
+------------------------------------------------+EVENT TIME: 05:18[MST]|
| NRC NOTIFIED BY: DAN MARKS |LAST UPDATE DATE: 01/03/2003|
| HQ OPS OFFICER: RICH LAURA +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |WILLIAM JOHNSON R4 |
|10 CFR SECTION: | |
|APRE 50.72(b)(2)(xi) OFFSITE NOTIFICATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 N Y 99 Power Operation |99 Power Operation |
| | |
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EVENT TEXT
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| PALO VERDE 2 OFFSITE NOTIFICATION ON COOLING TOWER WATER SPILL |
| |
| "The following event description is based on information currently |
| available. If through subsequent reviews of this event, additional |
| information is identified that is pertinent to this event or alters the |
| information being provided at this time, a follow-up notification will be |
| made via the ENS or under the reporting requirements of 10CFR50.73. |
| |
| "On Tuesday, December 31, 2002, the Palo Verde Nuclear Generating Station |
| Unit 2 will provide a voluntary written report to the Arizona Department of |
| Environmental Quality (ADEQ) of an event related to the protection of the |
| environment. Specifically, the report will detail an unintentional release |
| of an estimated 72,000 gallons of cooling tower water to the unlined ditch |
| that carries storm water from the gunite lined storm water collection system |
| to Sedimentation Basin #1. The release began at approximately 05:18 Mountain |
| Standard Time (MST) on December 26, 2002 and was stopped at approximately |
| 05:50 MST on December 28, 2002 following discovery. No news release is |
| anticipated." |
| |
| The NRC Resident Inspector was notified. |
| |
| ***UPDATE 01/03/03 1551 EST DAN MARKS TO JASON FLEMMING*** |
| |
| "It has been brought to Palo Verde's attention that this ENS event report |
| 39481 has been posted on the NRC website with an error. The release stopped |
| at approximately 05:50 MST on December 26, 2002. The webpage incorrectly |
| states December 28, 2002." |
| |
| The NRC resident inspector has been notified. |
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|Power Reactor |Event Number: 39487 |
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| FACILITY: WOLF CREEK REGION: 4 |NOTIFICATION DATE: 01/03/2003|
| UNIT: [1] [] [] STATE: KS |NOTIFICATION TIME: 15:14[EST]|
| RXTYPE: [1] W-4-LP |EVENT DATE: 01/03/2003|
+------------------------------------------------+EVENT TIME: 11:01[CST]|
| NRC NOTIFIED BY: STEVE HENRY |LAST UPDATE DATE: 01/03/2003|
| HQ OPS OFFICER: JASON FLEMMING +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |WILLIAM JOHNSON R4 |
|10 CFR SECTION: | |
|ARPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA| |
|AESF 50.72(b)(3)(iv)(A) VALID SPECIF SYS ACTUAT| |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 A/R Y 100 Power Operation |0 Hot Standby |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
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| AUTOMATIC REACTOR TRIP DUE TO POWER RANGE NEUTRON FLUX - HIGH NEGATIVE RATE |
| TRIP |
| |
| "On January 3, 2003, Wolf Creek Generating Station Unit 1 was operating at |
| 100% reactor power when an automatic reactor trip occurred at 11:01 a.m. |
| CST. Scheduled preventative maintenance had been completed on the control |
| rod drive motor generator set, and the system was being placed back into |
| service when an automatic reactor trip was received due to a Power Range |
| Neutron Flux - High Negative Rate trip on all four power range channels. |
| |
| "An Auxiliary Feedwater Actuation Signal was received and initiated the |
| Auxiliary Feedwater System as expected. Plant equipment performed as |
| expected. |
| |
| "Investigation into the cause of the reactor trip is in progress. The plant |
| is currently in MODE 3, Hot Standby. This event is being reported in |
| accordance with 10 CFR 50.72(b)(2)(iv)(B) and 10 CFR 50.72(b)(3)(iv)(A)." |
| |
| The Licensee has notified the NRC Resident inspector. |
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|Power Reactor |Event Number: 39488 |
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| FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 01/04/2003|
| UNIT: [] [2] [] STATE: IL |NOTIFICATION TIME: 07:47[EST]|
| RXTYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 01/04/2003|
+------------------------------------------------+EVENT TIME: 01:13[CST]|
| NRC NOTIFIED BY: JOHN LECHMAIER |LAST UPDATE DATE: 01/04/2003|
| HQ OPS OFFICER: HOWIE CROUCH +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |ROGER LANKSBURY R3 |
|10 CFR SECTION: | |
|AIND 50.72(b)(3)(v)(D) ACCIDENT MITIGATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 N Y 100 Power Operation |100 Power Operation |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
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| LOW PRESSURE COOLANT INJECTION DECLARED INOPERABLE |
| |
| "At 0113 hours CST on 1/4/2003, SR 3.5.1.1 [Surveillance Requirement] |
| (monthly fill and vent surveillance) was initiated on U-2 B RHR loop. When |
| the high point vents were opened, no flow was observed within the |
| established venting criteria required by the surveillance. Based on this, |
| neither LPCI [Low Pressure Coolant Injection] subsystem could be ensured |
| filled to the injection valves. Both LPCI subsystems were declared |
| inoperable and TS 3.5.1 [Technical Specification] Condition D [was] entered. |
| At 0204 hours CST, when full flow was observed from the 2B RHR loop, TS |
| 3.5.1 Condition D was exited. At 0210 hours CST, 2A RHR loop was |
| subsequently vented and full flow was observed immediately. |
| |
| "This notification is being made in accordance with |
| 10CFR50.72(b)(3)(v)[(D)]." |
| |
| Licensee has informed the NRC Resident Inspector. |
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