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any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.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 April 6, 2001

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           04/05/2001 - 04/06/2001

                              ** EVENT NUMBERS **

37892  37893  37894  

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37892       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: BYRON                    REGION:  3  |NOTIFICATION DATE: 04/05/2001|
|    UNIT:  [] [2] []                 STATE:  IL |NOTIFICATION TIME: 12:30[EDT]|
|   RXTYPE: [1] W-4-LP,[2] W-4-LP                |EVENT DATE:        04/05/2001|
+------------------------------------------------+EVENT TIME:        10:38[CDT]|
| NRC NOTIFIED BY:  SWANSON                      |LAST UPDATE DATE:  04/05/2001|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |MICHAEL JORDAN       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          Y       88       Power Operation  |88       Power Operation  |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| Unescorted access granted inappropriately.  Immediate compensatory measures  |
| taken upon discovery.                                                        |
| Contact HOO for additional details.                                          |
|                                                                              |
| The NRC Resident Inspector will be notified.                                 |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Other Nuclear Material                           |Event Number:   37893       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG:  YALE UNIVERSITY                      |NOTIFICATION DATE: 04/05/2001|
|LICENSEE:  YALE UNIVERSITY                      |NOTIFICATION TIME: 16:54[EDT]|
|    CITY:  NEW HAVEN                REGION:  1  |EVENT DATE:        04/05/2001|
|  COUNTY:                            STATE:  CT |EVENT TIME:             [EDT]|
|LICENSE#:                        AGREEMENT:  N  |LAST UPDATE DATE:  04/05/2001|
|  DOCKET:                                       |+----------------------------+
|                                                |PERSON          ORGANIZATION |
|                                                |JACK MCFADDEN        R1      |
|                                                |LARRY CAMPER         NMSS    |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  TAMMY STEMENS                |                             |
|  HQ OPS OFFICER:  BOB STRANSKY                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|NINF                     INFORMATION ONLY       |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+------------------------------------------------------------------------------+

                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| MISSING PO-210 SOURCE                                                        |
|                                                                              |
| A 50 �Ci Po-210 source has been discovered missing. The source was leased    |
| from a vendor under a general license. The caller stated that the source had |
| been used in a science fair project, and then inadvertently discarded into   |
| the trash. The university is currently attempting to determine whether the   |
| trash from this residence was taken to a sanitary landfill or an             |
| incinerator.                                                                 |
+------------------------------------------------------------------------------+

+------------------------------------------------------------------------------+
|Power Reactor                                    |Event Number:   37894       |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: DIABLO CANYON            REGION:  4  |NOTIFICATION DATE: 04/05/2001|
|    UNIT:  [1] [2] []                STATE:  CA |NOTIFICATION TIME: 18:41[EDT]|
|   RXTYPE: [1] W-4-LP,[2] W-4-LP                |EVENT DATE:        04/05/2001|
+------------------------------------------------+EVENT TIME:        15:26[PDT]|
| NRC NOTIFIED BY:  JOYCE SKAGGS                 |LAST UPDATE DATE:  04/05/2001|
|  HQ OPS OFFICER:  BOB STRANSKY                 +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          UNU                   |LINDA SMITH          R4      |
|10 CFR SECTION:                                 |CHRISTOPHER GRIMES   NRR     |
|*AEC 50.72(a) (1) (i)    EMERGENCY DECLARED     |RICHARD WESSMAN      IRO     |
|                                                |ELLIS MERSCHOFF      R4      |
|                                                |WILLIAM BORCHARDT    NRR     |
|                                                |DAVID BARDON         FEMA    |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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       100      Power Operation  |100      Power Operation  |
|                                                   |                          |
+------------------------------------------------------------------------------+
                                   EVENT TEXT                                   
+------------------------------------------------------------------------------+
| UNUSUAL EVENT DECLARED DUE TO UNCONTROLLED BRUSH FIRE THREATENING OFFSITE    |
| POWER SUPPLIES                                                               |
|                                                                              |
| The licensee declared an Unusual Event at 1526 PDT due to an uncontrolled    |
| brush fire near the site. The licensee was performing a controlled burn of   |
| grasses near the site when the fire went out of control. Heavy smoke from    |
| the fire caused a fault on the incoming 230kV  power line, resulting in a    |
| loss of startup electrical power to both units. All six EDGs automatically   |
| started, but did not load. The licensee has notified local government        |
| agencies, and has requested assistance from the California Department of     |
| Forestry. The NRC resident inspector is currently onsite.                    |
|                                                                              |
| * * * UPDATE 1913 EDT 4/5/01 FROM SKAGGS TAKEN BY STRANSKY * * *             |
|                                                                              |
| The licensee reported that the fire has been extinguished. Startup power has |
| been restored to the startup transformers, with restoration of  power to     |
| individual buses still underway.                                             |
|                                                                              |
| * * * UPDATE 2005 EDT 4/5/01 FROM SKAGGS TAKEN BY STRANSKY * * *             |
|                                                                              |
| The Unusual Event was terminated at 1700 PDT. Startup power has been         |
| restored to all individual buses. Notified R4(Brockman), NRR (Grimes), FEMA  |
| (DePuy).                                                                     |
|                                                                              |
| * * * COMMISSIONERS ASSISTANTS' BRIEFING  2030 EDT 4/5/01 * * *              |
|                                                                              |
| Briefer: W. Jones. Participants: Brockman, Merschoff, Smith, et. al. (R4),   |
| Wessman (IRO), Grimes (NRR), Camper (NMSS), Beecher (OPA), Lohaus (STP),     |
| Hauber (OIP), Morris (EDO), Paperiello (DEDMRS), Tschiltz, Levin (Comm.      |
| Meserve), Hiltz (Comm. Dicus), Beall (Comm. McGaffigan) Davis (Comm. Diaz),  |
| Thoma, Stauss (Comm. Merrifield).                                            |
+------------------------------------------------------------------------------+


Page Last Reviewed/Updated Wednesday, March 24, 2021