U.S. Nuclear Regulatory Commission Operations Center Event Reports For 06/08/98 - 06/09/98 ** EVENT NUMBERS ** 34333 34360 34361 34362 34363 34364 34365 34366 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34333 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 06/03/98 | |UNIT: [ ] [2] [ ] STATE: PA |NOTIFICATION TIME: 11:59 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 06/03/98 | +------------------------------------------------+EVENT TIME: 09:14[EDT]| |NRC NOTIFIED BY: PEAKS |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: HENRY BAILEY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LAURIE PELUSO RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | REACTOR WATER CLEANUP ISOLATION DUE TO INADVERTENT STANDBY LIQUID CONTROL | | PUMP INITIATION AND INJECTION INTO THE REACTOR VESSEL. | | | | AT 0914, THE UNIT 2 REACTOR WATER CLEANUP (RWCU) SYSTEM ISOLATED DUE TO THE | | INADVERTENT INITIATION OF THE '2C' STANDBY LIQUID CONTROL (SLC) PUMP AND | | INJECTION INTO THE REACTOR VESSEL. AT 0920, THE '2C' SLC PUMP (A POSITIVE | | DISPLACEMENT PUMP) WAS SECURED. THE APPROXIMATE AMOUNT OF WATER INJECTED | | WAS BETWEEN 300 AND 350 GALLONS, AND THE FINAL REACTOR VESSEL WATER LEVEL | | WAS 91 INCHES. | | | | THE CAUSE FOR THE SLC SYSTEM INITIATION IS UNKNOWN AND IS CURRENTLY UNDER | | INVESTIGATION. PRIOR TO THE INCIDENT, UNIT 2 WAS SHUT DOWN AND | | DEPRESSURIZED IN OPERATIONAL CONDITION 4 (COLD SHUTDOWN) WITH THE REACTOR | | VESSEL LEVEL AT 88 INCHES. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED BY THE LICENSEE. | | | | * * * UPDATE AT 1814 ON 06/03/98 FROM SCHIENDELMAN RECEIVED BY GOULD * * * | | | | THE LICENSEE HAS FORMED AN INVESTIGATION TEAM TO REVIEW THE INADVERTENT | | INITIATION OF THE '2C' SLC PUMP AND TO ACCOMPLISH THE FOLLOWING ACTIVITIES: | | | | 1. DETERMINE THE CAUSE OF THE INADVERTENT INJECTION AND CORRECTIVE | | ACTIONS TO PREVENT RECURRENCE, | | 2. DEVELOP THE PLAN FOR CLEANUP OF THE REACTOR WATER, AND | | 3. PERFORM AN ASSESSMENT OF THE IMPACT ON SYSTEMS AND COMPONENTS | | INCLUDING THE REACTOR VESSEL AND INTERNALS, CARBON-STEEL COMPONENTS, | | AND FUEL. | | | | AT 1435 ON 06/03/98, REACTOR WATER CHEMISTRY PARAMETERS WERE AS FOLLOWS: | | | | CONDUCTIVITY - 75 æMHO/CM | | pH READING - 8.49 | | BORON CONCENTRATION - 54.7 PPM | | | | CLEANUP OF THE REACTOR WATER HAS COMMENCED. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. THE R1DO (PELUSO) | | WAS NOTIFIED BY THE NRC OPERATIONS OFFICER. | | | | * * * UPDATE AT 0814 ON 06/04/98 FROM CARL RICH RECEIVED BY TROCINE * * * | | | | THE LICENSEE REPORTED THAT THE UNIT 2 REACTOR WATER CHEMISTRY IS STEADILY | | IMPROVING AS THE CLEANUP PROCESS CONTINUES. AS OF 0547 ON 06/04/98, | | REACTOR WATER CONDUCTIVITY WAS 40.15 æMHO/CM AND REACTOR WATER pH WAS 7.97. | | | | THE CLEANUP PROCESS INVOLVES CHANGING OUT THE WATER IN THE REACTOR VESSEL | | (BASICALLY FEEDING AND BLEEDING). THE LICENSEE IS UTILIZING THE RWCU | | SYSTEM TO CONTINUOUSLY DILUTE 130-135 GALLONS PER MINUTE, AND IT IS | | ESTIMATED THAT IT WILL TAKE ANOTHER 48 HOURS FOR THIS CLEANUP PROCESS TO | | BE COMPLETED. | | | | THE EVENT INVESTIGATION TEAM IS CONTINUING TO INVESTIGATE THE CAUSE OF THE | | INADVERTENT STANDBY LIQUID INITIATION AND TO DEVELOP CORRECTIVE ACTIONS TO | | PREVENT RECURRENCE. THE TEAM IS ALSO ASSESSING THE IMPACT ON SYSTEMS AND | | COMPONENTS INCLUDING THE REACTOR VESSEL AND INTERNALS, CARBON-STEEL | | COMPONENTS, AND FUEL. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR OF THIS UPDATE. THE NRC | | OPERATIONS OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 0910 ON 06/04/98 FROM CARL RICH RECEIVED BY TROCINE * * * | | | | AS OF 0845 ON 06/04/98, REACTOR WATER CONDUCTIVITY WAS 33.6 æMHO/CM, | | pH WAS 7.97, AND BORON CONCENTRATION WAS 24.0 PPM. | | | | THE NRC OPERATIONS OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 1820 ON 06/04/98 FROM CARL RICH TO S. SANDIN * * * | | | | UNIT 2 REACTOR WATER CHEMISTRY IS STEADILY IMPROVING AS CLEANUP CONTINUES. | | AS OF 1540 ON 06/04/98, REACTOR WATER CONDUCTIVITY WAS 20.4 æMHO/CM, | | REACTOR WATER pH WAS 7.96, AND BORON CONCENTRATION WAS 12.8 PPM. | | | | THE EVENT INVESTIGATION TEAM IS CONTINUING TO INVESTIGATE THE CAUSE OF THE | | INADVERTENT STANDBY LIQUID INITIATION. GENERAL ELECTRIC (GE) AND SYSTEM | | EXPERTS WILL BE ONSITE ON 06/05/98 TO SUPPORT THIS EFFORT. THE TEAM IS | | ALSO ASSESSING THE IMPACT ON SYSTEMS AND COMPONENTS. | | | | THE LICENSEE PLANS TO INFORM THE NRC RESIDENT INSPECTOR. THE NRC | | OPERATIONS OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 0631 ON 06/05/98 FROM JEFF KLENK RECEIVED BY TROCINE * * * | | | | UNIT 2 REACTOR WATER CHEMISTRY CONTINUES TO IMPROVE, AND CLEANUP IS | | CONTINUING. AS OF 0500 ON 06/05/98, REACTOR WATER CONDUCTIVITY WAS | | 9.6 æMHO/CM, REACTOR WATER pH WAS 7.93, AND BORON CONCENTRATION WAS | | 5.25 PPM. | | | | THE EVENT INVESTIGATION TEAM CONTINUES TO INVESTIGATE THE CAUSE OF THE | | '2C' SLC PUMP INITIATION AND TO DEVELOP CORRECTIVE ACTIONS TO PREVENT | | RECURRENCE. THE INITIATION RELAYS ASSOCIATED WITH THE '2C' SLC PUMP HAVE | | BEEN REMOVED FOR ANALYSIS. AN ELECTRONICS EXPERT FROM GE IS SCHEDULED TO | | BE ON SITE THIS MORNING TO AID IN THE INVESTIGATION. THE IMPACT ON SYSTEMS | | AND COMPONENTS IS STILL BEING ASSESSED. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. THE NRC | | OPERATIONS OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 1706 ON 06/05/98 FROM CARL RICH TO S. SANDIN * * * | | | | THE FOLLOWING INFORMATION WAS PROVIDED BY THE LICENSEE AS AN UPDATE: | | | | "THIS IS THE FIFTH UPDATE NOTICE FOR THE REPORT MADE AT 1159 ON 06/03/98 | | REGARDING THE INADVERTENT INITIATION OF THE '2C' SLC PUMP. | | | | 1. UNIT 2 REACTOR WATER CHEMISTRY CONTINUES TO IMPROVE. CLEANUP IS | | CONTINUING. AS OF 1600 ON 06/05/98, REACTOR WATER CONDUCTIVITY IS | | 7.8 æMHO/CM AND BORON CONCENTRATION IS 4.5 PPM. | | | | 2. THE EVENT INVESTIGATION TEAM LED BY KEITH KEMPER THE CHEMISTRY MANAGER | | AND A FORMER SRO, CONTINUES TO INVESTIGATE THE CAUSE OF THE '2C' SLC PUMP | | INITIATION, AND DEVELOP CORRECTIVE ACTIONS TO PREVENT REOCCURRENCE. THE | | INITIATION RELAYS ASSOCIATED WITH THE '2C' SLC PUMP HAVE BEEN TAKEN TO | | VALLEY FORGE LABS WHERE THEY ARE CURRENTLY BEING EVALUATED. AN ELECTRONICS | | EXPERT FROM GE IS CURRENTLY ONSITE ASSISTING WITH THE INVESTIGATION. THE | | IMPACT ON SYSTEMS AND COMPONENTS IS STILL BEING ASSESSED." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 0555 ON 06/06/98 FROM CARL RICH TO JOLLIFFE * * * | | | | CLEANUP IS CONTINUING AND AS OF 0500 ON 06/06/98, REACTOR WATER | | CONDUCTIVITY IS 4.9 æMHO/CM AND BORON CONCENTRATION IS 4.2 PPM. | | | | THE INITIATION RELAYS ASSOCIATED WITH THE '2C' SLC PUMP THAT WERE TAKEN TO | | VALLEY FORGE LABS HAVE BEEN EVALUATED AND FOUND TO BE FUNCTIONING PROPERLY. | | ADDITIONAL RELAY TESTING IS IN PROGRESS. TROUBLESHOOTING OF THE SLC SYSTEM | | POWER SUPPLIES IS IN PROGRESS. AN ELECTRONICS EXPERT FROM GE IS CURRENTLY | | ONSITE ASSISTING WITH THE INVESTIGATION. THE IMPACT ON SYSTEMS AND | | COMPONENTS IS BEING ASSESSED. | | | | THE LICENSEE PLANS TO INFORM THE NRC RESIDENT INSPECTOR. THE NRC | | OPERATIONS OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 1649 ON 06/06/98 FROM CARL RICH TO S. SANDIN * * * | | | | THE FOLLOWING INFORMATION WAS PROVIDED BY THE LICENSEE AS AN UPDATE: | | | | "THIS IS THE SEVENTH UPDATE NOTICE FOR THE REPORT MADE AT 1159 ON 06/03/98 | | REGARDING THE INADVERTENT INITIATION OF THE '2C' SLC PUMP. | | | | UNIT 2 REACTOR WATER CHEMISTRY CONTINUES TO IMPROVE. CLEANUP IS | | CONTINUING. AS OF 1600 ON 06/06/98, REACTOR WATER CONDUCTIVITY IS | | 1.44 æMHOS/CM AND BORON CONCENTRATION IS 2.3 PPM." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 0521 ON 06/07/98 FROM STEVE BREEDING TO JOLLIFFE * * * | | | | CLEANUP IS CONTINUING AND AS OF 0300 ON 06/07/98, REACTOR WATER | | CONDUCTIVITY IS 0.5 æMHO/CM AND BORON CONCENTRATION IS 1.4 PPM. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 1716 ON 06/07/98 FROM CARL RICH TO S. SANDIN * * * | | | | THE FOLLOWING INFORMATION WAS PROVIDED BY THE LICENSEE AS AN UPDATE: | | | | "THIS IS THE NINTH UPDATE NOTICE FOR THE REPORT MADE AT 1159 ON 06/03/98 | | REGARDING THE INADVERTENT INITIATION OF THE '2C' SLC PUMP: | | | | UNIT 2 REACTOR WATER CHEMISTRY CONTINUES TO IMPROVE. CLEANUP IS | | CONTINUING. AS OF 1700 ON 06/07/98, REACTOR WATER CONDUCTIVITY IS | | 0.21 æMHO/CM, pH IS 6.92, AND BORON CONCENTRATION IS 0.6 PPM." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 0521 ON 06/08/98 BY STEVE BREEDING TO JOLLIFFE * * * | | | | AS OF 0025 ON 06/08/98, REACTOR WATER CONDUCTIVITY IS 0.19 æMHO/CM, | | pH IS 6.60, AND BORON CONCENTRATION IS 0.26 PPM. | | | | THE LICENSEE DETERMINED THAT PLANT OPERATORS MANIPULATING THE "M" SRV | | SWITCH (NO VALVE MOVEMENT) DURING TROUBLESHOOTING AND TESTING ACTIVITIES AT | | THE TIME THIS EVENT OCCURRED IS THE CAUSE OF THE '2C' SLC PUMP INITIATION. | | THE LICENSEE IS CONTINUING TO EVALUATE THE TEST DATA. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (PELUSO). | | | | * * * UPDATE AT 1900 ON 06/08/98 FROM PATON TO GOULD * * * | | | | AS OF 0830 ON 06/08/98, CONDUCTIVITY IS 0.203 æMHO/CM, pH IS 6.23, AND | | BORON CONCENTRATION IS 0.226 PPM | | | | THE LICENSEE EVENT INVESTIGATION TEAM CONCLUDED THAT THE SPURIOUS OPERATION | | OF THE '2C' SLC PUMP IS ATTRIBUTABLE TO ELECTROMAGNETIC INDUCTION (EMI) | | INDUCED IN THE REDUNDANT REACTIVITY CONTROL SYSTEM CABLES. THE EMI HAS | | BEEN TRACED TO REPEATED OPERATION OF THE '2M' SRV FROM ITS CONTROL SWITCH | | IN THE AUXILIARY EQUIPMENT ROOM. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | OFFICER NOTIFIED THE R1DO (SUMMERS). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 34360 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 06/08/98 | | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 03:14 [ET]| |COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 06/07/98 | | 6903 ROCKLEDGE DRIVE |EVENT TIME: 21:10[CDT]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 06/08/98 | | CITY: PADUCAH REGION: 3 +-----------------------------+ | COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION| |LICENSE#: GDP-1 AGREEMENT: Y |BRUCE JORGENSEN RDO | | DOCKET: 0707001 |JOHN HICKEY, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: RANDY BOSHELL | | |HQ OPS OFFICER: DICK JOLLIFFE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NCFR NON CFR REPORT REQMNT | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AUTOCLAVE SAFETY SYSTEM ACTUATION DUE TO STEAM CONTROLLER PRESSURE INCREASE | | | | AT 2145 CDT ON 06/07/98, PADUCAH PERSONNEL DETERMINED THAT A VALID SAFETY | | SYSTEM ACTUATION HAD OCCURRED ON AUTOCLAVE POSITION 4-NORTH IN THE C-333A | | PROCESS BUILDING. THE AUTOCLAVE HAD BEEN HEATING UP FOR APPROXIMATELY | | 3 HOURS AND WAS IN STANDBY MODE. THE STEAM CONTROLLER SYSTEM MALFUNCTIONED | | CAUSING THE PRESSURE INSIDE THE AUTOCLAVE TO RISE TO APPROXIMATELY 7 PSIG | | WHICH ACTUATED THE STEAM PRESSURE CONTROL SAFETY SYSTEM. THE SAFETY SYSTEM | | PERFORMED AS DESIGNED PLACING THE AUTOCLAVE IN A SAFE CONDITION. | | | | THIS EVENT IS SUBMITTED IN ACCORDANCE WITH SAFETY ANALYSIS REPORT TABLE | | 6.9-1, CRITERIA J.2 AS AN ACTUATION OF A "Q" SAFETY SYSTEM IN RESPONSE TO | | A VALID SIGNAL. THIS EVENT REQUIRES A 24 HOUR NOTIFICATION TO THE NRC. | | | | PADUCAH PERSONNEL INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34361 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 06/08/98 | |UNIT: [1] [ ] [ ] STATE: FL |NOTIFICATION TIME: 05:03 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 06/08/98 | +------------------------------------------------+EVENT TIME: 03:34[EDT]| |NRC NOTIFIED BY: DAVE FIELDS |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 85 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - UNIT 1 STRUCK BY LIGHTNING TWICE DURING A THUNDERSTORM - | | | | AT 0334 AND 0404 ON 06/08/98, LIGHTNING STRUCK UNIT 1 TRIPPING THE | | #1B2 CIRC WATER PUMP AND THE #1B HEATER DRAIN PUMP. CONTROL ROOM OPERATORS | | MANUALLY REDUCED POWER FROM 100% TO 85% POWER. THE LICENSEE IS INSPECTING | | UNIT 1 FOR DAMAGE. UNIT 1 IS STABLE AT 85% POWER. UNIT 2 WAS UNAFFECTED | | BY THE THUNDERSTORM. | | | | THE LICENSEE PLANS TO INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34362 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 06/08/98 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 05:04 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 06/08/98 | +------------------------------------------------+EVENT TIME: 04:20[EDT]| |NRC NOTIFIED BY: STEVE BAKER |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LAURIE PELUSO RDO | |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 N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - STATE NOTIFIED OF SODIUM HYPOCHLORITE DISCHARGE FROM UNIT 2 - | | | | THE LICENSEE NOTIFIED THE STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL | | PROTECTION THAT APPROXIMATELY 150 GALLONS OF SODIUM HYPOCHLORITE HAD BEEN | | DISCHARGED FROM UNIT 2 INTO LONG ISLAND SOUND OVER A PERIOD OF 6 DAYS DUE | | TO A LEFT-OPEN VALVE. THIS DISCHARGE IS IN EXCESS OF THE PLANT NPDES | | LIMIT. THE LICENSEE HAS CLOSED THE VALVE AND STOPPED THE DISCHARGE. | | | | THE LICENSEE NOTIFIED LOCAL OFFICIALS AND THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34363 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GINNA REGION: 1 |NOTIFICATION DATE: 06/08/98 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 11:49 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 06/08/98 | +------------------------------------------------+EVENT TIME: 00:00[EDT]| |NRC NOTIFIED BY: WHITE |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD BARKLEY RDO | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | |VERN HODGE NRR | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | 10CFR PART 21 INVOLVING A REFURBISHED WESTINGHOUSE DB-25 CIRCUIT BREAKER | | RECEIVED WITH A MISSING PART. | | | | THE LICENSEE RECEIVED A WESTINGHOUSE DB-25 CIRCUIT BREAKER REFURBISHED | | IN 1992 BY WESTINGHOUSE REPLACEMENT COMPONENTS SERVICES, MONROEVILLE, PA. | | THE REFURBISHED DB-25 CIRCUIT BREAKER WAS RETURNED TO GINNA WITH A MISSING | | PIN IN THE OPERATING MECHANISM. THE ABSENCE OF THIS PIN IS BELIEVED TO | | HAVE CONTRIBUTED TO THE FAILURE OF THE "SWP1B" CIRCUIT BREAKER TO CLOSE | | ON A MANUAL SIGNAL FROM THE MAIN CONTROL BOARD. THIS IMPLIES THAT THE | | POTENTIAL EXISTS FOR THE BREAKER NOT TO CLOSE ON AN AUTOMATIC DEMAND | | AND THEREFORE NOT BE AVAILABLE TO PERFORM ITS SAFETY FUNCTIONS. | | | | THERE ARE 41 PERMANENTLY INSTALLED DB-25 BREAKERS IN THE SCREEN HOUSE AND | | TURBINE BUILDINGS AT GINNA. ALL OF THE REMAINING BREAKERS WERE VISUALLY | | INSPECTED TO VERIFY THE PIN IN QUESTION WAS INSTALLED. NO OTHER BREAKERS | | WERE FOUND TO BE MISSING THE PIN. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34364 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 06/08/98 | |UNIT: [ ] [3] [ ] STATE: PA |NOTIFICATION TIME: 13:55 [ET]| |RX TYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 06/08/98 | +------------------------------------------------+EVENT TIME: 09:00[EDT]| |NRC NOTIFIED BY: BRASSARD |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD BARKLEY RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 3 | N Y 80 POWER OPERATION | 80 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AT 1500 ON 06/04/98, THE LICENSEE FOUND A SUSPICIOUS SUBSTANCE IN THE UNIT | | 3 TURBINE BUILDING FAN ROOM. | | | | THE SUBSTANCE WAS TURNED OVER TO THE LICENSEE'S CORPORATE SECURITY CLAIMS | | DIVISION WHO DETERMINED AT 0900 ON 06/08/98 THAT THE SUBSTANCE WAS A | | CONTROLLED SUBSTANCE (MARIJUANA). | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34365 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 06/08/98 | |UNIT: [1] [2] [ ] STATE: NC |NOTIFICATION TIME: 14:05 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/08/98 | +------------------------------------------------+EVENT TIME: 13:05[EDT]| |NRC NOTIFIED BY: RARY |LAST UPDATE DATE: 06/08/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SECURITY EVENT - | | | | DISCOVERY OF A CRIMINAL ACT INVOLVING AN INDIVIDUAL WHO WAS GRANTED ACCESS | | TO THE SITE. IMMEDIATE COMPENSATORY MEASURES WERE TAKEN UPON DISCOVERY. | | SEE HOO LOG FOR ADDITIONAL DETAILS. THE LICENSEE INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34366 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 06/09/98 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 03:52 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 06/09/98 | +------------------------------------------------+EVENT TIME: 01:32[EDT]| |NRC NOTIFIED BY: MOKE EMPY |LAST UPDATE DATE: 06/09/98 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROBERT SUMMERS RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | |AESF 50.72(b)(2)(ii) ESF ACTUATION |CURT COWGILL R1 | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | A/R Y 68 POWER OPERATION | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - AUTO REACTOR TRIP FROM 68% DUE TO FAILED MAIN FEEDWATER REG VALVE - | | | | AT 0132 ON 06/09/98, THE 'A' MAIN FEEDWATER REG VALVE FAILED FOR UNKNOWN | | REASONS WHICH CAUSED A HIGH REACTOR VESSEL WATER LEVEL WHICH CAUSED THE | | MAIN TURBINE TO TRIP WHICH CAUSED THE REACTOR TO AUTO SCRAM FROM 68% POWER | | AND THE MAIN FEEDWATER PUMPS TO TRIP. ALL CONTROL RODS EXCEPT ROD #42-19 | | COMPLETELY INSERTED INTO THE CORE. CONTROL ROOM OPERATORS RESET THE | | REACTOR SCRAM SIGNAL AND VERIFIED THAT ALL CONTROL RODS WERE FULLY INSERTED | | INTO THE CORE. CONTROL ROOM OPERATORS WERE CONTROLLING REACTOR PRESSURE | | VIA THE MAIN TURBINE BYPASS VALVES TO THE MAIN CONDENSER. | | | | PRIMARY CONTAINMENT ISOLATION SYSTEMS GROUPS 2 (RESIDUAL HEAT REMOVAL | | SYSTEM), GROUP 3 (CONTAINMENT VENTILATION SYSTEM), AND GROUP 5 (REACTOR | | WATER CLEANUP SYSTEM) ISOLATED DUE TO LOW REACTOR VESSEL WATER LEVEL | | IMMEDIATELY FOLLOWING THE SCRAM DUE TO WATER SHRINK. | | | | CONTROL ROOM OPERATORS RESTORED REACTOR VESSEL WATER LEVEL TO ITS NORMAL | | RANGE. | | | | THE 4KV SAFETY RELATED BUSES #1 AND #3 AND THE 480 VOLT SAFETY RELATED | | BUSES #6 AND #11 WERE LOST WHILE CONTROL ROOM OPERATORS WERE ATTEMPTING TO | | TO RESTORE A MAIN FEEDWATER PUMP TO SERVICE. THE 'B' EDG AUTO STARTED ON | | THE LOSS OF BUS #3 VOLTAGE AND LOADED TO SUPPLY POWER TO BUS #3. CONTROL | | ROOM OPERATORS RESTORED POWER TO BUS #6 BY CROSSTYING TO BUS #7. DURING | | THE RESTORATION OF POWER TO BUS #6, THE RESTORATION OF THE AUXILIARY OIL | | PUMP RESTORED CONTROL OIL TO THE MAIN TURBINE BYPASS VALVES AND CAUSED THE | | MAIN STEAM ISOLATION VALVES TO CLOSE DUE TO MOMENTARY HIGH STEAM FLOW. | | | | THE 'A' RPS M-G SET TRIPPED DUE TO THE VOLTAGE TRANSIENT ON SAFETY RELATED | | BUS #3 WHEN THE 'B' RHR PUMP WAS STARTED. BUS #3 WAS BEING SUPPLIED BY THE | | 'B' EDG AT THE TIME. BUS #3 HAS SINCE BEEN TRANSFERRED TO THE STARTUP | | TRANSFORMER. | | | | CONTROL ROOM OPERATORS ARE STABILIZING REACTOR PRESSURE AND WATER LEVEL IN | | THE NORMAL RANGE USING THE STEAM RELIEF VALVES TO THE TORUS, THE RCIC | | SYSTEM AND CONTROL ROD DRIVE FLOW. TWO SUBSEQUENT SCRAM SIGNALS WERE | | RECEIVED DUE TO LOW REACTOR VESSEL WATER LEVEL AFTER THE STEAM RELIEF | | VALVES WERE OPENED FOR REACTOR PRESSURE CONTROL. THE TORUS IS BEING COOLED | | USING THE 'A' RHR LOOP. | | | | THE PLANT IS STABLE IN CONDITION 3 (HOT SHUTDOWN). THE LICENSEE IS | | INVESTIGATING THE CAUSE OF THE MAIN FEEDWATER REG VALVE FAILURE AND THE | | ELECTRICAL TRANSIENT EXPERIENCED WHILE ATTEMPTING TO RESTORE POWER TO THE | | MAIN FEEDWATER PUMP. | | | | OFFSITE POWER WAS MAINTAINED THROUGHOUT THIS EVENT. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR AND PLANS TO ISSUE A PRESS | | RELEASE. | +------------------------------------------------------------------------------+