Event Notification Report for May 11, 2000
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
05/10/2000 - 05/11/2000
** EVENT NUMBERS **
36921 36987 36988
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
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|Power Reactor |Event Number: 36921 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: COOK REGION: 3 |NOTIFICATION DATE: 04/23/2000|
| UNIT: [1] [2] [] STATE: MI |NOTIFICATION TIME: 06:49[EDT]|
| RXTYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 04/23/2000|
+------------------------------------------------+EVENT TIME: 03:35[EDT]|
| NRC NOTIFIED BY: BRIAN MOTZ |LAST UPDATE DATE: 05/10/2000|
| HQ OPS OFFICER: FANGIE JONES +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |MARK RING R3 |
|10 CFR SECTION: | |
|AESF 50.72(b)(2)(ii) ESF ACTUATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N N 0 Refueling |0 Refueling |
|2 N N 0 Cold Shutdown |0 Cold Shutdown |
| | |
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EVENT TEXT
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| UNIT 1 TRAIN 'B' ESSENTIAL SERVICE WATER PUMP STARTED AUTOMATICALLY |
| |
| While setting up for testing the Solid State Protection System (SSPS) on |
| Unit 2, the clearance permit did not anticipate the start of the Unit 1 |
| train 'B' Essential Service Water (ESW) Pump. |
| |
| "To perform maintenance on the SSPS, a clearance to deenergize the SSPS |
| cabinets in Unit 2 was written. The Unit 2 SSPS was in inhibit at this |
| time. During the deenergization per this clearance, an automatic start of |
| the Unit 1 East ESW Pump occurred. The ESW Pump autostart was not |
| anticipated or described in the clearance. |
| |
| "A Safety Injection (SI) signal through SSPS in either Unit 1 or Unit 2 will |
| cause the ESW Pumps in both units to autostart for the train effected. |
| Similarly, the removal of power from the control room instrumentation |
| distribution circuit, which is what occurred here, will cause the autostart |
| of the ESW pumps. |
| |
| "There were no adverse consequences as a result of the auto pump start and |
| the actuation was per the system design. No SI signal was generated." |
| |
| The licensee notified the NRC Resident Inspector. |
| |
| * * * UPDATE AT 1822 ON 5/10/00 BY WOODS RECEIVED BY WEAVER * * * |
| |
| "The original report was made regarding an automatic start of the Unit 1 |
| East Essential Service Water (ESW) Pump during maintenance, and was |
| conservatively reported as an automatic actuation of an Engineered Safety |
| Feature (ESF). Subsequent reviews of the pump start event and the |
| reportability requirements of 10 CFR 50.72 and 50.73 have confirmed that |
| this event is not reportable. |
| |
| "In the case of the start of the 1 E ESW Pump, the ESF actuation slave relay |
| never was actuated, but was deenergized and would not have actuated. No |
| other portion of the associated ESF actuation circuitry was completed. |
| Additionally, the ESW pump was not manually started in an emergency response |
| to plant conditions that would have required the pump to be operating. |
| |
| "NUREG-1022, Revision 1, Event Reporting Guidelines: 10CFR50.72 and 50.73, |
| Part 3.3.2, Actuation Of An Engineered Safety Feature Or The RPS, provides |
| guidance for the reporting requirements of an ESF actuation event as listed |
| in 10 CFR 50.72 and 50.73. The NUREG states that actuation of certain |
| single ESF components of complex systems need not be reported. Single |
| components of complex systems, by themselves, usually do not mitigate the |
| consequences of significant events. |
| |
| "Based on the facts that this event was an inadvertent start of a single |
| component that would not mitigate the consequences of a significant event, |
| and that the minimum amount of ESF actuation logic, i.e., the slave relay, |
| did not actuate, the event is not reportable under 10 CFR 50.72 or 50.73. |
| Therefore, the 4 hour non-emergency report, event number 36921, is being |
| retracted." |
| |
| The licensee informed the NRC resident inspector of this report. The |
| Operations Center notified the R3DO (CLAYTON). |
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+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36987 |
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| FACILITY: FERMI REGION: 3 |NOTIFICATION DATE: 05/09/2000|
| UNIT: [2] [] [] STATE: MI |NOTIFICATION TIME: 21:19[EDT]|
| RXTYPE: [2] GE-4 |EVENT DATE: 05/09/2000|
+------------------------------------------------+EVENT TIME: 20:39[EDT]|
| NRC NOTIFIED BY: DAVID COSEO |LAST UPDATE DATE: 05/10/2000|
| HQ OPS OFFICER: DOUG WEAVER +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |BRENT CLAYTON R3 |
|10 CFR SECTION: | |
|DDDD 73.71 UNSPECIFIED PARAGRAPH | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|2 N N 0 Cold Shutdown |0 Cold Shutdown |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| COMPENSATORY MEASURES TEMPORARILY SUSPENDED DUE TO INCLEMENT WEATHER. |
| CONTACT THE OPERATIONS CENTER FOR ADDITIONAL DETAILS. |
| |
| * * * Updated on 5/10/00 to reflect correct reactor mode of cold shutdown |
| vice hot shutdown * * * |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Other Nuclear Material |Event Number: 36988 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: UNIVERSITY OF CONNECTICUTT |NOTIFICATION DATE: 05/10/2000|
|LICENSEE: UNIVERSITY OF CONNECTICUTT |NOTIFICATION TIME: 11:56[EDT]|
| CITY: STORRS REGION: 1 |EVENT DATE: 05/05/2000|
| COUNTY: STATE: CT |EVENT TIME: 09:30[EDT]|
|LICENSE#: AGREEMENT: N |LAST UPDATE DATE: 05/10/2000|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |JOHN ROGGE R1 |
| |DON COOL NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: KEN PRICE | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|BAB1 20.2201(a)(1)(i) LOST/STOLEN LNM>1000X | |
| | |
| | |
| | |
| | |
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EVENT TEXT
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| POSSIBLE LOSS OF A TRITIATED EXIT SIGN |
| |
| During final walkthrough for renovation of the Waring Chemistry Building, |
| one tritiated exit sign appears to be missing. Eleven signs were collected, |
| but there appeared to be a "spot" on the wall at one exit where it appears a |
| sign had hung. A search was conducted of the building without finding any |
| indication of the sign. There is no inventory of the signs so there is no |
| positive way of determining that a sign is actually missing. The sign would |
| by a model 101 by Shield Source Incorporated if it matches the rest of the |
| signs. The sign contained 7 curies of tritium on 1/93 and would contain |
| about 5 curies now. The university plans to send out a flyer looking for |
| the sign and provide warning of the hazards involved. |
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Page Last Reviewed/Updated Thursday, March 25, 2021
Page Last Reviewed/Updated Thursday, March 25, 2021