Event Notification Report for September 2, 1999
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
09/01/1999 - 09/02/1999
** EVENT NUMBERS **
35790 36018 36107 36108 36109 36110 36111 36112
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 35790 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 06/03/1999|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 14:44[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 06/02/1999|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 16:30[CDT]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 09/01/1999|
| CITY: PADUCAH REGION: 3 +-----------------------------+
| COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION |
|LICENSE#: GDP-1 AGREEMENT: Y |DAVID HILLS R3 |
| DOCKET: 0707001 |DON COOL NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: THOMAS WHITE | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBA 76.120(c)(2)(i) ACCID MT EQUIP FAILS | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| THREE SPRINKLER SYSTEMS DECLARED INOPERABLE DUE TO CORRODED HEADS (24-hour |
| report) |
| |
| The following text is a portion of a facsimile received from Paducah: |
| |
| "On 06/02/99 at 1630 CDT, the Plant Shift Superintendent (PSS) was notified |
| that numerous sprinkler heads were corroded, affecting 16 sprinkler systems |
| in C-337 and one system in C-333, such that the ability of the sprinklers to |
| flow sufficient water was called into question. Subsequently, these |
| sprinkler systems were declared inoperable, and TSR-required actions |
| establishing roving fire patrols were initiated. This deficiency was |
| detected during scheduled system inspections conducted by Fire Protection |
| personnel. Currently, functionality of the sprinkler heads has not been |
| fully evaluated by Fire Protection personnel, and the remaining cascade |
| buildings are currently being inspected, and if necessary, this report will |
| be updated to identify any additional areas. |
| |
| "It has been determined that this event is reportable under |
| 10CFR76.120(c)(2) as an event in which equipment is disabled or fails to |
| function as designed." |
| |
| The NRC resident inspector has been notified of this event. |
| |
| |
| * * * UPDATE AT 1022 ON 06/04/99 FROM CAGE TO TROCINE * * * |
| |
| "Two sprinkler heads on system D-1 in C-337 and two sprinkler heads on |
| system 27 in C-335 were identified to also be corroded. These were |
| identified to the PSS on 06/03/99 at 1600 CDT and 1601 CDT, respectively, |
| and determined to require an update to this report by the PSS. |
| |
| "It has been determined that this event is reportable under |
| 10CFR76.120(c)(2) as an event in which equipment is disabled or fails to |
| function as designed." |
| |
| Paducah personnel notified the NRC resident inspector of this update. The |
| NRC operations officer notified the R3DO (Hills) and NMSS EO (Combs). |
| |
| * * * UPDATE AT 2152 ON 06/17/99 FROM WALKER TO POERTNER * * * |
| |
| "Three sprinkler heads on system C-15 and five sprinkler heads on system B-8 |
| in C-333 were identified to also be corroded. The PSS was notified of this |
| condition at 1300 CDT on 06/17/99 and determined that an update to this |
| report was required." |
| |
| "It has been determined that this event is reportable under |
| 10CFR76.120(c)(2) as an event in which equipment is disabled or fails to |
| function as designed." |
| |
| Paducah personnel notified the NRC resident inspector of this update. The |
| NRC operations officer notified the R3DO (Madera). |
| |
| * * * UPDATE 1440 6/18/1999 FROM UNDERWOOD TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on system C-15 and one sprinkler head on system B-8 in |
| C-333 were identified to have corrosion. The PSS was notified of this |
| condition at 1350 CDT on 06/18/99. The area of the fire patrol for system |
| C-15 was expanded to include the two heads identified as corroded. The one |
| head on system B-8 was in the area already being patrolled. The PSS |
| determined that an update to this report was required." |
| |
| The NRC resident inspector has been informed of this update. Notified R3DO |
| (Madera). |
| |
| * * * UPDATE 1315 6/25/1999 FROM WALKER TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on system D-8 and three sprinkler heads on system D-7 |
| in C-337 were identified to have corrosion. The PSS was notified of the |
| condition on system D-8 at 0125 CDT on 06/25/99 and at 1019 CDT on 06/25/99 |
| for system D-7. Both systems were immediately declared inoperable and LCO |
| fire patrol actions were implemented. It was determined that an update to |
| this report was required." |
| |
| The NRC resident inspector has been informed of this update. Notified R3DO |
| (Jordan). |
| |
| * * * UPDATE 2119 7/30/1999 FROM CAGE TAKEN BY STRANSKY * * * |
| |
| "Five sprinkler heads and one sprinkler piping tee on C-337 system D-7 were |
| identified to have corrosion. The PSS was notified of these corroded system |
| parts and declared the system inoperable at 0931 CDT on 07/30/99. LCO |
| required fire patrols of the affected area were initiated. The PSS |
| determined that an update to this event report was required." |
| |
| The NRC resident inspector has been informed of this update. Notified R3DO |
| (Wright). |
| |
| * * * UPDATE 1655 7/31/1999 FROM WHITE TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on C-337 System D-1 were identified to have corrosion. |
| The PSS was notified of these corroded system parts and declared the system |
| inoperable at 1155 CDT on 7/31/99. LCO required fire patrols of the |
| affected area were initiated. The PSS determined that an update to this |
| report was required." |
| |
| The NRC resident inspector has been informed of this update. Notified R3DO |
| (Wright). |
| |
| * * * UPDATE 1546 8/10/1999 FROM WHITE TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on C-337 system C-15 were identified to have corrosion. |
| The PSS was notified of these corroded system parts and declared the system |
| inoperable at 1130 CDT on 8/10/99. LCO required fire patrols of the |
| affected area were initiated. The PSS determined that an update to this |
| report was required." |
| |
| The NRC resident inspector has been informed of this update. Notified R3DO |
| (Burgess). |
| |
| * * * UPDATE AT 1154 8/22/99 FROM WALKER TO POERTNER * * * |
| |
| Four adjacent sprinkler heads on C-333 System B-1 were identified to have |
| corrosion. The PSS was notified of the corroded system parts and declared |
| the system inoperable at 0918 CDT on 8/22/99. LCO required fire patrols |
| were initiated. The PSS determined that an update to this report was |
| required. |
| |
| It has been determined that this event is reportable under 10CFR76.120(c)(2) |
| as an event in which equipment is disabled or fails to function as |
| designed. |
| |
| The NRC resident inspector will be notified. |
| |
| The NRC operations officer notified the R3DO (Clayton). |
| |
| * * * UPDATE 2015EDT ON 8/28/99 FROM W.F. GAGE TO S. SANDIN * * * |
| |
| The following information was provided as an update to this report: |
| |
| "Two adjacent sprinkler heads on C-337 System D-11 were identified to have |
| corrosion. The PSS was notified of these corroded system parts and declared |
| the system inoperable at 1420 [CDT] on 8/28/99. LCO required fire patrols |
| of the affected area were initiated. The PSS determined that an update to |
| this report was required." |
| |
| Paducah personnel informed the NRC resident inspector. The NRC operations |
| officer notified the R3DO (Leach) and NMSS EO (Piccone). |
| |
| * * * UPDATE 2037EDT ON 8/29/99 FROM KEVIN BEASLEY TO S. SANDIN * * * |
| |
| The following information was provided as an update to this report: |
| |
| "Two adjacent sprinkler heads on C-337 System D-15 were identified to have |
| corrosion and the PSS declared the system inoperable at 0925 [CDT] on |
| 8/29/99. Also two adjacent heads on C-337 System D-10 were identified to |
| have corrosion and the PSS declared the system inoperable at 1450. LCO |
| required fire patrols for both of the affected areas were initiated in the |
| time frame required by TSR. The PSS determined that an update to this |
| report was required." |
| |
| Paducah personnel informed the NRC resident inspector. The NRC operations |
| officer notified the R3DO (Leach) and NMSS EO (Piccone). |
| |
| * * * UPDATE AT 0930 EDT ON 9/1/99 BY ERIC WALKER TO FANGIE JONES * * * |
| |
| Add two adjacent sprinkler heads on C-337 D-14. Paducah personnel informed |
| the NRC Resident Inspector. The NRC operations officer notified the R3DO |
| (David Hills) and NMSS (Robert Pierson). |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 36018 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 08/11/1999|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 14:46[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 08/10/1999|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 16:00[EDT]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 09/02/1999|
| CITY: PIKETON REGION: 3 +-----------------------------+
| COUNTY: PIKE STATE: OH |PERSON ORGANIZATION |
|LICENSE#: GDP-2 AGREEMENT: N |BRUCE BURGESS R3 |
| DOCKET: 0707002 |JOHN HICKEY NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: JIM McCLEERY | |
| HQ OPS OFFICER: LEIGH TROCINE | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBB 76.120(c)(2)(ii) EQUIP DISABLED/FAILS | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| FAILURE OF 13 HIGH PRESSURE FIRE WATER SPRINKLER SYSTEMS TO MEET SYSTEM |
| OPERABILITY REQUIREMENTS (24-Hour Report) |
| |
| The following text is a portion of a facsimile received from Portsmouth: |
| |
| "On 08/10/99 at approximately 1600 hours, the Plant Shift Superintendent |
| (PSS) was notified that 13 sprinkler systems associated with the High |
| Pressure Fire Water (HPFW) system were not capable of meeting system |
| operability requirements. This condition was discovered as a result of an |
| engineering review of individual sprinkler heads that had previously been |
| identified as exhibiting corrosion around the valve seat. The engineering |
| review was conducted following the discovery that similar corrosion problems |
| experienced at the Paducah Gaseous Diffusion Plant resulted in sprinkler |
| heads being unable to actuate at normal pressure. An initial screening of |
| PORTS sprinkler heads known to exhibit corrosion was conducted, and systems |
| where the potential for two or more adjacent heads to be corroded were |
| inspected. This identified 11 systems in the X-333 and 2 systems in the |
| X-326 that did not meet the sprinkler system operability requirement that no |
| two adjacent sprinkler heads be inoperable." |
| |
| "The PSS declared the affected sprinkler systems inoperable, and TSR |
| required actions were completed. Further inspections of sprinkler systems |
| are planned. This report will be updated if additional sprinkler systems |
| are determined to be inoperable." |
| |
| "There was no loss of hazardous/radioactive material or |
| radioactive/radiological contamination exposure as a result of this |
| event." |
| |
| Portsmouth personnel notified the NRC resident inspector as well as the |
| onsite Department of Energy representative. |
| |
| *** UPDATE ON 8/19/99 AT 2327 FROM HALCOMB TO POERTNER *** |
| |
| During continuing walkdowns, HPFW system #398 was discovered with two or |
| more (3) adjacent sprinkler heads with mineral deposits. This HPFW |
| sprinkler was declared inoperable at 1038 hours and was repaired at 1407 |
| hours. |
| |
| Portsmouth personnel notified the NRC resident inspector. |
| |
| * * * UPDATE 1415 EDT ON 8/28/99 FROM JIM McCLEERY TO S. SANDIN * * * |
| |
| The following information was provided as an update to this report: |
| |
| "During continuing walk downs of the HPFW system, systems 194, 196, 197, |
| 211, 212 were found with two or more adjacent sprinkler heads unable to meet |
| system operability. Systems were made inoperable at 1452 on 8/27/99. All |
| sprinklers were repaired and system operability made at 0550 8/26/99." |
| |
| Portsmouth personnel informed the NRC resident inspector. The NRC |
| operations officer notified the R3DO (Leach) and NMSS EO (Piccone). |
| |
| * * * UPDATE 2337 ON 8/30/1999 FROM McCLEERY TAKEN BY STRANSKY * * * |
| |
| "During continuing walkdowns of the HPFW system, seven additional systems |
| were found with two or more adjacent sprinkler heads unable to meet system |
| operability. Six systems were in the X-333 and one in the X-330. These |
| systems were made inoperable starting at 1100 8/30/99 and repairs are being |
| performed at this time." |
| |
| Notified R3DO (Hills) and NMSS EO (Piccone). |
| |
| * * * UPDATE 2305 8/31/1999 FROM McCLEERY TAKEN BY STRANSKY * * * |
| |
| "Add seven HPFW systems from X-333 building." The NRC resident inspector has |
| been informed of this update. |
| |
| Notified R3DO (Hills) and NMSS EO (Pierson). |
| |
| * * * UPDATE 0047 EDT on 9/2/1999 FROM JIM McCLEERY TO FANGIE JONES * * * |
| |
| "Add fourteen HPFW systems from X-333 building." The NRC resident inspector |
| has been informed of this update. |
| |
| Notified R3DO (Hills) and NMSS EO (Pierson). |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36107 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 08/31/1999|
| UNIT: [2] [] [] STATE: NY |NOTIFICATION TIME: 22:39[EDT]|
| RXTYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 08/31/1999|
+------------------------------------------------+EVENT TIME: 21:55[EDT]|
| NRC NOTIFIED BY: MARK STUBBLE |LAST UPDATE DATE: 09/01/1999|
| HQ OPS OFFICER: BOB STRANSKY +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: UNU |JOHN WHITE R1 |
|10 CFR SECTION: |DAVID MATTHEWS NRR |
|AAEC 50.72 (a) (1) (I) EMERGENCY DECLARED |CHARLES MILLER IRO |
| |JOHN ROGGE R1 |
| |GENE CANUPP FEMA |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|2 N N 0 Hot Standby |0 Hot Standby |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| UNUSUAL EVENT DUE TO LOSS OF MOST CONTROL ROOM ANNUNCIATORS |
| |
| An Unusual Event was declared at 2155 EDT due to an unplanned loss of |
| greater than 75% of the control room safety system annunciators for longer |
| than 15 minutes. The licensee reported that the annunciators are currently |
| inoperable, and that additional panel walkdowns are being performed. The |
| unit is currently stable in Hot Standby following a reactor trip earlier |
| today (see EN 36104). The NRC resident inspector has been informed, and is |
| in the control room. |
| |
| * * * UPDATE AT 0157 EDT ON 9/1/99 BY MARK STUBBLE TO FANGIE JONES * * * |
| |
| The plant conditions are improving and the plant is stable in Hot Shutdown. |
| The annunciators have been restored. The previous problem with 480 VAC |
| busses on Event #36104 has been found to be related to the loss of the |
| annunciators. Further evaluation is ongoing and the licensee expects to |
| exit the Unusual Event soon. |
| |
| The licensee notified the NRC Resident Inspector. The HOO notified the R1DO |
| (John White), NRR EO (David Matthews), and IRO Manager (Charles Miller). |
| |
| * * * UPDATE AT 0343 EDT ON 9/1/99 BY MARK STUBBLE TO FANGIE JONES * * * |
| |
| The plant exited the Unusual Event at 0330 EDT, the plant is in normal Hot |
| Shutdown. The licensee has notified the NRC Resident. The HOO notified the |
| R1DO (John White), NRR EO (David Matthews), IRO Manager (Charles Miller), |
| and FEMA (Gene Canupp). |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36108 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: BIG ROCK POINT REGION: 3 |NOTIFICATION DATE: 09/01/1999|
| UNIT: [1] [] [] STATE: MI |NOTIFICATION TIME: 11:20[EDT]|
| RXTYPE: [1] GE-1 |EVENT DATE: 09/01/1999|
+------------------------------------------------+EVENT TIME: 10:44[EDT]|
| NRC NOTIFIED BY: LARRY MONSHOR |LAST UPDATE DATE: 09/01/1999|
| HQ OPS OFFICER: FANGIE JONES +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |DAVID HILLS R3 |
|10 CFR SECTION: |TAD MARSH NRR |
|APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 N N 0 Decommissioned |0 Decommissioned |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| OFFSITE NOTIFICATION DUE TO SMOLDERING EMBERS |
| |
| At the Big Rock Point Restoration Project, some smoldering embers in a |
| pipeway of the recirculation pump room generated smoke. The Charlevoix |
| Township fire department responded to site, but the on site fire brigade was |
| able to take care of the problem. The problem was due to main steam pipe |
| cutting activities heating the pipe insulation cloth coverings to the point |
| of generating embers. There was no fire and no entry into emergency |
| classification. |
| |
| The licensee notified the NRC Resident Inspector. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36109 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 09/01/1999|
| UNIT: [] [3] [] STATE: PA |NOTIFICATION TIME: 11:52[EDT]|
| RXTYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 09/01/1999|
+------------------------------------------------+EVENT TIME: 08:46[EDT]|
| NRC NOTIFIED BY: SCOTT PABIS |LAST UPDATE DATE: 09/01/1999|
| HQ OPS OFFICER: BOB STRANSKY +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |JOHN WHITE R1 |
|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 |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|3 N Y 89 Power Operation |89 Power Operation |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| REACTOR BUILDING VENTILATION ISOLATION |
| |
| An inboard primary containment isolation system (PCIS) Group III (reactor |
| building ventilation) isolation occurred due to an inadvertent loss of power |
| to the 'A' reactor protection system (RPS) bus during a plant modification. |
| All affected components responded as designed. The 'A' RPS bus was |
| reenergized, and all components were restored. The NRC resident inspector |
| has been informed of this event by the licensee. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 36110 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 09/01/1999|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 11:57[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 08/31/1999|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 14:00[EDT]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 09/01/1999|
| CITY: PIKETON REGION: 3 +-----------------------------+
| COUNTY: PIKE STATE: OH |PERSON ORGANIZATION |
|LICENSE#: GDP-2 AGREEMENT: N |DAVID HILLS R3 |
| DOCKET: 0707002 |DON COOL NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: JOE HALCOMB | |
| HQ OPS OFFICER: BOB STRANSKY | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBB 76.120(c)(2)(ii) EQUIP DISABLED/FAILS | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| MICROFILTRATION SYSTEM pH PROBES DISCOVERED TO BE OUT OF TOLERANCE |
| |
| "On 8/31/99 at 1200 hrs, the Plant Shift Superintendent was notified that a |
| previously discovered X-705 Microfiltration System (MFS) pH probe out of |
| tolerance condition likely existed during a time period when the MFS was in |
| operation. The out of tolerance condition was in a non-conservative |
| direction and previously discovered during a routine weekly surveillance on |
| 8/27/99. An evaluation to determine the condition existed while the MFS was |
| in operation was initiated at that time. Engineering suspected that the |
| probe calibration may have been affected when the probes were exposed to a |
| high pH solution on 8/23/99. Subsequent discussion with the probe |
| manufacturer confirmed that a high pH solution could affect probe |
| calibration. As a result, it was concluded that the out of tolerance |
| condition likely existed from approximately 8/23/99 to 8/27/99. |
| |
| "The out of tolerance condition affected 2 of the 3 pH probes (2 out of 3 |
| logic required to activate the safety system). The as found data for the 2 |
| probes indicated they would actuate at 6.73 pH and 6.65 pH, which is below |
| the 7 pH required setpoint. A review of the MFS operational history |
| indicated that the MFS pH was maintained above a 7 pH during the time the |
| probes are suspected to have been out of tolerance." |
| |
| The NRC resident inspector has been informed of this notification. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36111 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: WASHINGTON NUCLEAR REGION: 4 |NOTIFICATION DATE: 09/01/1999|
| UNIT: [2] [] [] STATE: WA |NOTIFICATION TIME: 17:41[EDT]|
| RXTYPE: [2] GE-5 |EVENT DATE: 09/01/1999|
+------------------------------------------------+EVENT TIME: 11:00[PDT]|
| NRC NOTIFIED BY: MIKE KELLER |LAST UPDATE DATE: 09/01/1999|
| HQ OPS OFFICER: BOB STRANSKY +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |CHARLES CAIN R4 |
|10 CFR SECTION: | |
|APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|2 N Y 79 Power Operation |79 Power Operation |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| INADVERTENT ACTUATION OF EMERGENCY SIRENS DURING TESTING |
| |
| "During the routine weekly testing of the emergency response sirens |
| (continuity test of siren circuitry), WNP-2 inadvertently activated the |
| audible offsite sirens. The sirens were activated at 1100 hours PDT, and |
| sounded for three minutes. |
| |
| "WNP-2 notified the following government agencies of the inadvertent |
| activation of the emergency response sirens: |
| |
| "Benton County Southeast Communications (911 Center) |
| "Franklin County Emergency Management |
| "United States Department of Energy (Hanford Operations-Occurrence |
| Notification Center) |
| "Washington State Department of Emergency Management |
| |
| "In addition, a notification was made to the local radio station responsible |
| for emergency-broadcasts, with a media/press release to local newspapers. |
| |
| "All offsite agencies and media were advised that the siren activation was |
| inadvertent and not in response to an actual emergency. In addition, offsite |
| agencies were instructed that no emergency response actions were required." |
| |
| The NRC resident inspector has been informed of this event by the licensee. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36112 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 09/01/1999|
| UNIT: [] [2] [3] STATE: CA |NOTIFICATION TIME: 19:24[EDT]|
| RXTYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 09/01/1999|
+------------------------------------------------+EVENT TIME: 15:26[PDT]|
| NRC NOTIFIED BY: CLAY WILLIAMS |LAST UPDATE DATE: 09/01/1999|
| HQ OPS OFFICER: BOB STRANSKY +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |CHARLES CAIN R4 |
|10 CFR SECTION: | |
|AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 N Y 100 Power Operation |100 Power Operation |
|3 N Y 100 Power Operation |100 Power Operation |
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EVENT TEXT
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| RADIATION MONITOR CABLES DO NOT MEET 10 CFR 50 APPENDIX R SEPARATION |
| REQUIREMENTS |
| |
| "This notification is for San Onofre Units 2 and 3 and is being made In |
| accordance with 10CFR50.72(b)(1)(ii)(B). |
| |
| "Southern California Edison is in the process of implementing a change to |
| the radiation monitoring system at Units 2 and 3. To complete this change, |
| SCE installed a temporary panel in the control room area and removed the |
| original panels and some cable wraps. On August 31,1999, shortly before |
| midnight, licensee personnel noticed that several cables for Train A, Train |
| B, and Train X (e.g., various low voltage electrical power cables and |
| instrument signal lines) appeared to not meet the separation criteria of |
| Regulatory Guide 1.75, 'Physical Independence of Electrical Systems.' |
| Several of the affected cables provide actuation for Engineered Safety |
| Features (e.g., control room isolation and containment purge isolation). The |
| Updated Final Safety Analysis Report for Units 2 and 3 indicates these |
| systems comply with IEEE-297, 1971, 'Criteria for Protection System for |
| Nuclear Power Generating Stations' which is referenced by Regulatory Guide |
| 1.75. Consequently, at 1526 PDT, SCE concluded this condition was reportable |
| in accordance with 10CFR50.72(b)(1)(ii)(B) as a condition 'outside the |
| design basis of the plant'. |
| |
| "Shortly after identifying this condition, control room operators (1) placed |
| Train A of the Control Room Emergency Air Cleanup System in service, and (2) |
| closed and removed power from the containment minipurge valves. SCE |
| determined that this condition has only existed since August 27, 1999. SCE |
| has also confirmed that the affected components remained capable of |
| performing their intended safety functions and, therefore concludes the |
| safety significance of this occurrence is minimal." |
| |
| The NRC resident inspector has been informed of this notification by the |
| licensee. |
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Page Last Reviewed/Updated Wednesday, March 24, 2021