The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.

Event Notification Report for February 5, 2001

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           02/02/2001 - 02/05/2001

                              ** EVENT NUMBERS **

37710  37711  37712  37713  37714  37715  37716  

+------------------------------------------------------------------------------+
|Other Nuclear Material                           |Event Number:   37710       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG:  U.S. ARMY                            |NOTIFICATION DATE: 02/02/2001|
|LICENSEE:  U.S. ARMY                            |NOTIFICATION TIME: 11:13[EST]|
|    CITY:  ROCK ISLAND              REGION:  3  |EVENT DATE:        12/03/2000|
|  COUNTY:                            STATE:  IL |EVENT TIME:             [CST]|
|LICENSE#:  12-00722-06           AGREEMENT:  Y  |LAST UPDATE DATE:  02/02/2001|
|  DOCKET:                                       |+----------------------------+
|                                                |PERSON          ORGANIZATION |
|                                                |DAVID HILLS          R3      |
|                                                |BLAIR SPITZBERG      R4      |
+------------------------------------------------+BRIAN SMITH          NMSS    |
| NRC NOTIFIED BY:  JEFF HAVENNER                |                             |
|  HQ OPS OFFICER:  STEVE SANDIN                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|BAB1 20.2201(a)(1)(i)    LOST/STOLEN LNM>1000X  |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+------------------------------------------------------------------------------+

                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| MISSING M67 MORTAR SIGHT DEVICE                                              |
|                                                                              |
| The licensee reported that an M67 Mortar Sight Device was lost in December   |
| 2000 at Ft. Polk, LA during a training exercise for the 2nd Armored Cavalry. |
| The device contains multiple Tritium sources with an aggregate activity of   |
| 5.8 Curies.  The licensee does not believe the device was inadvertently sent |
| to the landfill, however, there are no specific plans to attempt recovery.   |
| The training area is restricted and inaccessible to the general public.      |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Fuel Cycle Facility                              |Event Number:   37711       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT      |NOTIFICATION DATE: 02/03/2001|
|   RXTYPE: URANIUM ENRICHMENT FACILITY          |NOTIFICATION TIME: 01:50[EST]|
| COMMENTS: 2 DEMOCRACY CENTER                   |EVENT DATE:        02/02/2001|
|           6903 ROCKLEDGE DRIVE                 |EVENT TIME:        10:30[CST]|
|           BETHESDA, MD 20817    (301)564-3200  |LAST UPDATE DATE:  02/03/2001|
|    CITY:  PADUCAH                  REGION:  3  +-----------------------------+
|  COUNTY:  McCRACKEN                 STATE:  KY |PERSON          ORGANIZATION |
|LICENSE#:  GDP-1                 AGREEMENT:  Y  |DAVID HILLS          R3      |
|  DOCKET:  0707001                              |M. WAYNE HODGES      NMSS    |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  MIKE UNDERWOOD               |                             |
|  HQ OPS OFFICER:  BOB STRANSKY                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|OCBA 76.120(c)(2)        SAFETY EQUIPMENT FAILUR|                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+------------------------------------------------------------------------------+

                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| TWO CRITICALITY ALARM HORNS FAILED TO SOUND DURING TESTING                   |
|                                                                              |
| "At 1030 on 2-2-01 the PSS was informed that the two Criticality Accident    |
| Alarm System (CAAS) pneumatic horns for building C-337-A failed to sound     |
| properly during testing. The system is required to be operable according to  |
| TSR 2.4.4.3.b for the prescribed modes of operation. Even though the system  |
| was declared inoperable at the time of the failure it is possible that the   |
| system would not have performed its intended safety function had it been     |
| required prior to being declared inoperable. The two horns were replaced and |
| satisfactorily tested.                                                       |
|                                                                              |
| "This event is reportable under 10 CFR 76.120(c)(2) as an event in which     |
| equipment required by the TSR is disabled or fails to function as            |
| designed."                                                                   |
|                                                                              |
| The NRC resident inspector has been informed of this event.                  |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37712       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: MILLSTONE                REGION:  1  |NOTIFICATION DATE: 02/03/2001|
|    UNIT:  [] [] [3]                 STATE:  CT |NOTIFICATION TIME: 03:51[EST]|
|   RXTYPE: [1] GE-3,[2] CE,[3] W-4-LP           |EVENT DATE:        02/03/2001|
+------------------------------------------------+EVENT TIME:        03:40[EST]|
| NRC NOTIFIED BY:  RAY MARTIN                   |LAST UPDATE DATE:  02/03/2001|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |DANIEL HOLODY        R1      |
|10 CFR SECTION:                                 |                             |
|*PRE 50.72(b)(2)(xi)     OFFSITE NOTIFICATION   |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|                                                   |                          |
|                                                   |                          |
|3     N          Y       0        Startup          |0        Hot Standby      |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| OFFSITE NOTIFICATION                                                         |
|                                                                              |
| The licensee contacted offsite government agencies to inform them that the   |
| unit commenced a refueling outage. The NRC resident inspector has been       |
| informed.                                                                    |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37713       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SAN ONOFRE               REGION:  4  |NOTIFICATION DATE: 02/03/2001|
|    UNIT:  [] [] [3]                 STATE:  CA |NOTIFICATION TIME: 18:47[EST]|
|   RXTYPE: [1] W-3-LP,[2] CE,[3] CE             |EVENT DATE:        02/03/2001|
+------------------------------------------------+EVENT TIME:        15:27[PST]|
| NRC NOTIFIED BY:  BOB CONOSCENTI               |LAST UPDATE DATE:  02/04/2001|
|  HQ OPS OFFICER:  FANGIE JONES                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          UNU                   |BLAIR SPITZBERG      R4      |
|10 CFR SECTION:                                 |RICHARD WESSMAN      NRR     |
|*AEC 50.72(a) (1) (i)    EMERGENCY DECLARED     |CHARLES MILLER       IRO     |
|                                                |GENE NUPP            FEMA    |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|                                                   |                          |
|                                                   |                          |
|3     A/R        Y       39       Power Operation  |0        Hot Standby      |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| UNUSUAL EVENT DECLARED DUE TO FIRE LASTING MORE THAN 15 MINUTES              |
|                                                                              |
| The plant was in the process of raising power after exiting shutdown         |
| operations and were at 39% power when a non-class 1E breaker failed at 1514  |
| PST causing a loss of power to  a non-safety electrical bus.  This in turn   |
| caused the loss of some secondary plant equipment which led to the loss of   |
| condenser vacuum, condensate pumps, feedwater pumps, and other equipment     |
| leading to a trip of the plant.  The breaker failure resulted in a fire      |
| which lasted until 1544 PST and the Unusual Event was declared at 1527 PST.  |
| The plant also lost all the control room annunciators for a period of time,  |
| they have been recovered.  The plant is stable in Hot Standby with the       |
| reactor coolant pumps running, auxiliary feedwater supplying the steam       |
| generators, and excess heat being released through the steam generator       |
| atmospheric dumps.  The main steam isolation valves are closed as a result   |
| of the secondary equipment that was lost.  The emergency diesel generators   |
| were running unloaded on automatic start signal from the loss of the         |
| non-class 1E bus.  Electrical power continues to be provided to all safety   |
| busses and the unaffected parts of the non-safety busses from offsite        |
| power.                                                                       |
|                                                                              |
| The licensee notified the NRC Resident Inspector and state and local         |
| authorities.                                                                 |
|                                                                              |
| * * * UPDATE AT 1956 EST ON 02/03/01 BY BOB CONOSCENTI TO FANGIE JONES * *   |
| *                                                                            |
|                                                                              |
| The licensee has determined that one breaker failed catastrophically causing |
| the loss of one 4160 VAC bus and pieces of the breaker assembly caused       |
| grounds in another 480 VAC bus causing its loss.  The plant is stable in Hot |
| Standby.  The licensee notified the NRC Resident Inspector.  The Unusual     |
| Event was terminated at 1544 PST.                                            |
|                                                                              |
| The R4DO (Blair Spitzberg), NRR EO (Richard Wessman), IRO Manager (Charles   |
| Miller), and FEMA (Gene Nupp) have been notified.                            |
|                                                                              |
| * * * COMMISSIONER'S ASSISTANTS' BRIEFING 1000 2/4/2001 * * *                |
|                                                                              |
| Briefer: Charles Marshall. Participants: Mamish (IRO), Richards, Wessman     |
| (NRR), Dricks (OPA), Combs (STP), Hauber (OIP), Madden (OCA), Morris (EDO),  |
| Levin (Chrm Meserve), Cain (Comm Dicus), Sharkey (Comm McGaffigan), Davis    |
| (Comm Diaz), McCabe (Comm Merrifield), Brockman, Henerson, Kramer (R4).      |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37714       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: CLINTON                  REGION:  3  |NOTIFICATION DATE: 02/04/2001|
|    UNIT:  [1] [] []                 STATE:  IL |NOTIFICATION TIME: 04:25[EST]|
|   RXTYPE: [1] GE-6                             |EVENT DATE:        02/04/2001|
+------------------------------------------------+EVENT TIME:        01:18[CST]|
| NRC NOTIFIED BY:  MATT BAKER                   |LAST UPDATE DATE:  02/04/2001|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |DAVID HILLS          R3      |
|10 CFR SECTION:                                 |                             |
|ARPS 50.72(b)(2)(ii)     RPS ACTUATION          |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1     A/R        Y       96       Power Operation  |0        Hot Shutdown     |
|                                                   |                          |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| AUTOMATIC TURBINE TRIP/REACTOR SCRAM DURING TESTING                          |
|                                                                              |
| During performance or routine turbine valve testing, an automatic turbine    |
| trip and subsequent reactor scram occurred due to low turbine emergency trip |
| system pressure. The unit is currently stable in Condition 3 (Hot Shutdown)  |
| with reactor vessel water level being maintained by the motor driven         |
| feedwater pump and reactor pressure being controlled via the steam bypass    |
| valves to the main condenser. All systems functioned as expected.            |
|                                                                              |
| The NRC resident inspector has been informed of this event by the licensee.  |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37715       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: POINT BEACH              REGION:  3  |NOTIFICATION DATE: 02/04/2001|
|    UNIT:  [1] [] []                 STATE:  WI |NOTIFICATION TIME: 14:52[EST]|
|   RXTYPE: [1] W-2-LP,[2] W-2-LP                |EVENT DATE:        02/04/2001|
+------------------------------------------------+EVENT TIME:        12:45[CST]|
| NRC NOTIFIED BY:  MIKE MEYER                   |LAST UPDATE DATE:  02/04/2001|
|  HQ OPS OFFICER:  FANGIE JONES                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |DAVID HILLS          R3      |
|10 CFR SECTION:                                 |                             |
|*IND 50.72(b)(3)(v)(D)   ACCIDENT MITIGATION    |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1     N          Y       80       Power Operation  |80       Power Operation  |
|                                                   |                          |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| DISCOVERY OF VALVE CLOSED THAT COULD AFFECT ACCIDENT MITIGATION              |
|                                                                              |
| "While performing troubleshooting operation on the Unit 1 Crossover Steam    |
| Dump System an Instrument Air Valve was discovered to be closed, when it     |
| should have been open.  This closed valve (IA-1553) isolates Instrument Air  |
| to the Crossover Steam Dump Valves rendering the system inoperable.  This    |
| system is required to be operable by the FSAR Appendix T and Power must be   |
| <437 MWe if the system is inop.  At the time of discovery power was <437     |
| MWe, however initial investigation leads to the conclusion that this valve   |
| has probably been closed since October, 2000.  Since Crossover Steam Dumps   |
| provide protection for a Turbine Overspeed Accident and is part of the PBNP  |
| Design Basis it was conservatively decided to make this 8-hour report.  Unit |
| 1 will remain < 437 MWe until the system is fully restored and tested.  An   |
| investigation is continuing."                                                |
|                                                                              |
| The licensee notified the NRC Resident Inspector.                            |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37716       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SOUTH TEXAS              REGION:  4  |NOTIFICATION DATE: 02/05/2001|
|    UNIT:  [1] [2] []                STATE:  TX |NOTIFICATION TIME: 05:02[EST]|
|   RXTYPE: [1] W-4-LP,[2] W-4-LP                |EVENT DATE:        02/05/2001|
+------------------------------------------------+EVENT TIME:        03:15[CST]|
| NRC NOTIFIED BY:  STEVEN KASPAR                |LAST UPDATE DATE:  02/05/2001|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |BLAIR SPITZBERG      R4      |
|10 CFR SECTION:                                 |                             |
|DDDD 73.71               UNSPECIFIED PARAGRAPH  |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1     N          Y       100      Power Operation  |100      Power Operation  |
|2     N          Y       9        Power Operation  |9        Power Operation  |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| 10 CFR 73.71(b) SECURITY REPORT                                              |
|                                                                              |
| Safeguards system degradation related to detection/monitoring. Immediate     |
| compensatory measures taken upon discovery. Contact the NRC Operations       |
| Center for additional details.                                               |
|                                                                              |
| The NRC resident inspector will be informed of this event by the licensee.   |
+------------------------------------------------------------------------------+


Page Last Reviewed/Updated Thursday, March 25, 2021