U.S. Nuclear Regulatory Commission Operations Center Event Reports For 06/10/96 - 06/11/96 ** EVENT NUMBERS ** 30606 30607 30608 30609 30610 30611 30612 30613 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30606 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MONTICELLO REGION: 3 |NOTIFICATION DATE: 06/09/96 | |UNIT: [1] [ ] [ ] STATE: MN |NOTIFICATION TIME: 21:53 [ET]| |RX TYPE: [1] GE-3 |EVENT DATE: 06/09/96 | +------------------------------------------------+EVENT TIME: 20:13[CDT]| |NRC NOTIFIED BY: DUANE BISTODEAU |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JIM MCCORMICKBARGER RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | A/R Y 54 POWER OPERATION | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - MAIN TURBINE TRIP/Rx SCRAM DUE TO LOSS OF MAIN GEN STATOR WATER COOLING - | | | | THE PLANT WAS OPERATING AT 100% POWER WITH 1 OF 2 MAIN GENERATOR STATOR | | WATER COOLING PUMPS INOPERABLE. | | | | AT 2010 (CDT), THE SECOND MAIN GENERATOR STATOR WATER COOLING PUMP SEIZED | | FOR UNKNOWN REASONS. THIS CAUSED THE MAIN TURBINE TO RUN BACK. CONTROL | | ROOM OPERATORS REDUCED REACTOR POWER IN ACCORDANCE WITH PLANT PROCEDURES. | | | | AT 2013 (CDT), THE MAIN TURBINE TRIPPED DUE TO THE LOSS OF THE MAIN | | GENERATOR STATOR WATER COOLING SYSTEM. THIS CAUSED THE REACTOR TO | | AUTOMATICALLY SCRAM FROM 54% POWER. ALL CONTROL RODS INSERTED COMPLETELY. | | STEAM IS BEING DUMPED TO THE MAIN CONDENSER. | | | | THE PLANT IS STABLE IN OPERATIONAL CONDITION 3 (HOT SHUTDOWN). | | | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE PUMP SEIZURE. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | ***UPDATE 0042 EDT ON 06/10/96 BY DUANE BISTODEAU BY MACKINNON*** | | | | A DECREASE IN REACTOR VESSEL WATER LEVEL IN RESPONSE TO THE REACTOR SCRAM | | CAUSED PRIMARY CONTAINMENT ISOLATION SYSTEM GROUP 2 (DRYWELL PURGE AND | | SAMPLE ISOLATION) AND GROUP 3 (REACTOR WATER CLEANUP) ISOLATIONS. THESE ARE | | THE NORMAL ISOLATIONS THEY RECEIVE ON A REACTOR SCRAM . ALL ISOLATIONS | | HAVE BEEN RESET AND THE SYSTEMS HAVE BEEN RETURNED TO THEIR NORMAL LINEUP. | | THE NRC RESIDENT INSPECTOR WAS INFORMED OF THE ESF ACTUATIONS BY THE | | LICENSEE. R3DO (JIM MCCORMICKBARGER) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30607 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 06/10/96 | |UNIT: [1] [ ] [ ] STATE: CA |NOTIFICATION TIME: 04:50 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/10/96 | +------------------------------------------------+EVENT TIME: 01:06[PDT]| |NRC NOTIFIED BY: GLENN GOELZER |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DALE POWERS RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | M/R Y 60 POWER OPERATION | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR MANUALLY TRIPPED WHEN SECOND MAIN FEEDWATER PUMP TRIPPED. | | | | REACTOR POWER WAS MANUALLY REDUCED RAPIDLY FROM 100% TO 60% AFTER IT WAS | | NOTICED THAT MAIN FEEDWATER PUMP 1-1 SUCTION PRESSURE WAS DECREASING. | | REACTOR POWER WAS BEING STABILIZED AT 60% WHEN MAIN FEEDWATER PUMP 1-1 | | TURBINE TRIPPED FOR AN UNKNOWN REASON. APPROXIMATELY ONE MINUTE LATER MAIN | | FEEDWATER PUMP 1-2 TURBINE TRIPPED. THE REACTOR WAS MANUALLY TRIPPED AFTER | | THE LOSS OF THE SECOND OPERATING MAIN FEEDWATER PUMP. ALL RODS FULLY | | INSERTED INTO THE CORE. THE TURBINE DRIVEN AND BOTH MOTOR DRIVEN AUXILIARY | | FEEDWATER PUMPS AUTOMATICALLY STARTED ON THE LOSS OF BOTH MAIN FEEDWATER | | PUMPS. LOWEST STEAM GENERATOR WATER LEVEL ON NARROW RANGE INDICATION WAS | | 15%. CURRENT REACTOR COOLANT TEMPERATURE IS 544.4øF DUE TO FILLING THE | | STEAM GENERATORS FROM 15% BACK TO THEIR NORMAL OPERATING WATER LEVEL RANGE. | | REACTOR COOLANT SYSTEM TEMPERATURE IS SLOWLY INCREASING BACK TO ITS Tave NO | | LOAD TEMPERATURE OF 547øF. THE STEAM DUMP BYPASS CONTROL SYSTEM AND MAIN | | CONDENSER ARE FULLY OPERABLE. LICENSEE IS INVESTIGATING WHY BOTH MAIN | | FEEDWATER PUMPS TRIPPED. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT BY THE LICENSEE. | | | | ***UPDATE AT 12:04 ON 6/10/96 BY ANDERSON TO GOULD*** THE PLANT HAD A | | EMERGENCY DIESEL START ON BUS UNDERVOLTAGE PRIOR TO THE REACTOR TRIP. THE | | LICENSEE HAD MANUALLY STARTED AN AUX FEEDWATER PUMP WHILE RAMPING THE UNIT | | DOWN AND HAD SECURED IT PRIOR TO THE TRIP. THE NRC RI WAS INFORMED. THE REG | | RDO (POWERS) WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30608 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 06/10/96 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 08:55 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 06/10/96 | +------------------------------------------------+EVENT TIME: 04:20[CDT]| |NRC NOTIFIED BY: T RATZLAFF |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DALE POWERS RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 20 POWER OPERATION | 20 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) SYSTEM DECLARED INOPERABLE | | | | WHILE PERFORMING PROCEDURE 6.HPCI.103, HPCI INSERVICE TESTING AND QUARTERLY | | TEST MODE SURVEILLANCE, AN ACCEPTANCE CRITERION WAS NOT MET. THE HPCI | | AUXILIARY COOLING WATER SUPPLY PRESSURE CONTROL VALVE, HPCI-AOV-PCV50, | | FAILED TO OPEN WHEN THE HPCI PUMP WAS SHUTDOWN. THIS VALVE SUPPLIES COOLING | | WATER TO THE HPCI PUMP LUBE OIL COOLER. HPCI WAS SUBSEQUENTLY DECLARED | | INOPERABLE PER TECHNICAL SPECIFICATION 3.5.c (7 DAYS TO RETURN IT TO | | SERVICE). WITH THE HPCI SYSTEM DECLARED INOPERABLE, THE REACTOR CORE | | ISOLATION COOLING (RCIC) SYSTEM WAS TESTED SATISFACTORILY. THIS TESTING | | INCLUDED A POST MAINTENANCE TEST OF THE RCIC PUMP. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 30609 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BABCOCK & WILCOX CO. |NOTIFICATION DATE: 06/10/96 | | RXTYPE: URANIUM FUEL FABRICATION |NOTIFICATION TIME: 10:47 [ET]| |COMMENTS: HEU FABRICATION & SCRAP RECOVERY |EVENT DATE: 06/10/96 | | NAVAL REACTOR FUEL |EVENT TIME: 10:28[EDT]| | |LAST UPDATE DATE: 06/10/96 | | CITY: LYNCHBURG REGION: 2 +-----------------------------+ | COUNTY: CAMPBELL STATE: VA |PERSON ORGANIZATION| |LICENSE#: SNM-42 AGREEMENT: N |PAUL FREDRICKSON RDO | | DOCKET: 07000027 |FRED COMBS EO | +------------------------------------------------+MUSE FEMA | |NRC NOTIFIED BY: B COFFEY |BARRETT (ERB) AEOD | |HQ OPS OFFICER: JOHN MacKINNON |P. TING NMSS | +------------------------------------------------+ | |EMERGENCY CLASS: ALERT | | |10 CFR SECTION: | | | | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TORNADO HAD BEEN SIGHTED 27 MILES SOUTH SOUTHEAST OF LYNCHBURG, Va. | | | | THE LICENSEE DECLARED AN ALERT EMERGENCY CLASSIFICATION DUE TO A TORNADO | | HAVING BEEN SIGHTED 27 MILES SOUTH SOUTHEAST OF LYNCHBURG, Va. THE | | TORNADO PATH IS HEADING NORTH EAST FROM LYNCHBURG. LICENSEE HAS SUSPENDED | | SPECIAL NUCLEAR MATERIAL OPERATIONS AND PLANT PERSONNEL HAVE BEEN EVACUATED | | INSIDE THE BUILDINGS AWAY FROM WINDOWS. NO EMERGENCY RESPONSE ACTIONS HAVE | | BEEN TAKEN BY THE LICENSEE. | | LICENSEE COMMAND CENTER HAS BEEN STAFFED AND THE LICENSEE NOTIFIED STATE | | AND LOCAL OFFICIALS OF THE ALERT CLASSIFICATION. | | | | ***UPDATE @ 1121 EDT 06/10/96 BY B COFFEY TAKEN BY MACKINNON*** | | | | AT 1118 EDT, THE LICENSEE CANCELED THE ALERT CLASSIFICATION AND RETURNED TO | | NORMAL PLANT OPERATIONS AFTER THE TORNADO WARNING WAS CANCELED. STATE AND | | LOCAL OFFICIALS WERE NOTIFIED BY THE LICENSEE THAT THEY HAVE ENTERED NORMAL | | PLANT OPERATIONS AND CANCELED THE ALERT CLASSIFICATION. R2DO (DAVE | | VERRELLI), NMSS EO (FRED COMBS), & FEMA (CARR) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30610 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FT CALHOUN REGION: 4 |NOTIFICATION DATE: 06/10/96 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 14:24 [ET]| |RX TYPE: [1] CE |EVENT DATE: 06/10/96 | +------------------------------------------------+EVENT TIME: 12:00[CDT]| |NRC NOTIFIED BY: RIDENOURE |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN PELLET RDO | |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 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE'S MEDIA RELATIONS DEPARTMENT MADE A PRESS RELEASE TO OMAHA | | AREA NEWS ORGANIZATIONS. | | | | THIS PRESS RELEASE WAS TO INFORM THE PUBLIC OF THE FORCED SHUTDOWN ON | | 6/7/96 AT THE FT CALHOUN NUCLEAR STATION DUE TO A VIBRATION PROBLEM ON ONE | | OF THEIR REACTOR COOLANT PUMPS. THE PLANT WILL REMAIN SHUT DOWN UNTIL THE | | PUMP CAN BE REPAIRED. THE RI WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30611 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 06/10/96 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 17:16 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 06/10/96 | +------------------------------------------------+EVENT TIME: 17:08[EDT]| |NRC NOTIFIED BY: RUTTAR |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KENNETH JENISON RDO | |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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE HAS DETERMINED THAT THE REACTOR PROTECTION SYSTEM (RPS) WIRING | | DOES NOT MEET FSAR SPECS. | | | | THE LICENSEE DETERMINED THAT THE WIRING TO THE MANUAL REACTOR TRIP SWITCH | | DID NOT MEET THE CABLE SEPARATION CRITERIA AS SPECIFIED IN THE FSAR. THE | | PLANT IS PRESENTLY SHUTDOWN AND THE TRIP BREAKERS ARE OPEN. THIS ISSUE WILL | | BE RESOLVED PRIOR TO STARTUP. THEY WILL ALSO PERFORM FURTHER WALKDOWNS TO | | DETERMINE WHERE ELSE THIS CONDITION MAY EXIST IN THE RPS. THE RI WAS | | INFORMED. STATE AND LOCAL WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30612 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 06/10/96 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 21:36 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 06/10/96 | +------------------------------------------------+EVENT TIME: 18:55[CDT]| |NRC NOTIFIED BY: RODTS |LAST UPDATE DATE: 06/10/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRUCE JORGENSEN RDO | |ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE HAS DETERMINED THERE IS A POTENTIAL FOR INSUFFICIENT VOLTAGE | | AT THE MOTOR STARTER CONTACTOR OF THE UNIT 1 EMERGENCY DIESEL GENERATOR | | (EDG) FUEL TRANSFER PUMP. | | | | DURING A REVIEW OF THE UNIT 1 DEGRADED VOLTAGE CALCULATIONS, ENGINEERING | | HAS DETERMINED THERE IS A POTENTIAL FOR INSUFFICIENT VOLTAGE AT THE MOTOR | | STARTER CONTACTOR OF THE UNIT 1 EDG FUEL TRANSFER PUMP. THIS POTENTIAL | | EXISTS DURING A LOCA WITH A SIMULTANEOUS DEGRADED VOLTAGE CONDITION. WITH | | INSUFFICIENT VOLTAGE TO THE CONTACTOR COIL, THE CONTACTOR WOULD FAIL TO | | PICK UP, RESULTING IN A FAILURE OF THE PUMP MOTOR TO START. THIS IS A | | FOLLOWUP TO EVENTS REPORTS: 30532, 30548 & 30577. ENGINEERING IS STILL | | REVIEWING THIS CONDITION TO ESTABLISH A CORRECTIVE MEASURE. THE RI WAS | | INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30613 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 06/11/96 | |UNIT: [1] [2] [3] STATE: CT |NOTIFICATION TIME: 04:03 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 06/11/96 | +------------------------------------------------+EVENT TIME: 00:33[EDT]| |NRC NOTIFIED BY: WARNOCK |LAST UPDATE DATE: 06/11/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KENNETH JENISON RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | RADIO PAGER SYSTEM INOPERABLE FROM 0033 EDT UNTIL 0130 EDT DUE TO LOSS OF | | DC POWER SUPPLY. | | | | AT 1030 EDT ON 06/10/96, THE UNIT 2 AC POWER SUPPLY FOR THE RADIO PAGER | | SYSTEM TRIPPED OPEN. THE LICENSEE POWERED UP THE AC POWER SUPPLY FOR THE | | RADIO PAGER SYSTEM FROM UNIT 3. HOWEVER, THE LICENSEE FAILED TO RESET THE | | BATTERY CHARGERS WHICH SUPPORT THE DC PART OF THE RADIO PAGER SYSTEM. THE | | BATTERIES SUPPORTING THE RADIO PAGER SYSTEM LASTED UNTIL 0033 EDT, 06/11/96 | | AT WHICH TIME THE RADIO PAGER SYSTEM BECAME INOPERABLE. THE RADIO PAGER | | SYSTEM WAS DECLARED OPERABLE AGAIN AT 0130 EDT, 06/11/96 EDT. THE LICENSEE | | WILL NOTIFY THE STATE OF THIS EVENT. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT. | | | | | +------------------------------------------------------------------------------+