U.S. Nuclear Regulatory Commission Operations Center Event Reports For 05/21/96 - 05/22/96 ** EVENT NUMBERS ** 30509 30510 30511 30512 30513 30514 30515 30516 30517 30518 30519 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30509 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NINE MILE POINT REGION: 1 |NOTIFICATION DATE: 05/21/96 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 09:28 [ET]| |RX TYPE: [1] GE-2,[2] GE-5 |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 07:43[EDT]| |NRC NOTIFIED BY: DAN COLEMAN |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON 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 N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFETY LIMIT CRITICAL POWER RATIO (SLCPR) SET NONCONSERVATIVELY | | | | GENERAL ELECTRIC INFORMED NINE MILE POINT UNIT ONE TODAY THAT THE SLCPR | | SHOULD BE 1.10. PREVIOUSLY, NMP-1 HAD OPERATED WITH A SLCPR OF 1.07. THIS | | CHANGE IN SLCPR RESULTS IN A CHANGE IN OPERATING LIMIT CRITICAL POWER RATIO | | (OLCPR) OF 0.03. | | | | NMP-1 HAS ALREADY CHANGED THE OLCPR IN THE CORE MONITORING SOFTWARE TO | | ACCOMMODATE THE NEW REQUIRED LIMIT. CRITICAL POWER RATIO LIMITING | | TRANSIENTS HAVE NOT OCCURRED DURING THE LAST TWO OPERATING CYCLES. GE-11 | | FUEL WAS USED DURING THE LAST TWO OPERATING CYCLES. NMP-1 WILL BE | | EVALUATING THIS CHANGE IN SLCPR FOR ANY IMPACT ON PAST OPERATION. | | | | SIMILAR OCCURRENCES OF NONCONSERVATIVE SLCPRs HAVE BEEN REPORTED BY SEVERAL | | OTHER BWRs OPERATING WITH GENERAL ELECTRIC FUEL. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30510 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GINNA REGION: 1 |NOTIFICATION DATE: 05/21/96 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 12:24 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 09:00[EDT]| |NRC NOTIFIED BY: MIKE RUBY |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTAINMENT INTEGRITY VIOLATED DURING REFUELING OPERATIONS | | | | A TEMPORARY AIR LINE WAS REMOVED FROM PENETRATION #2 IN THE EQUIPMENT HATCH | | AREA. THE REMOVAL OF THE AIR LINE LEFT A HOLE THROUGH THE PENETRATION. | | REFUELING OPERATIONS WERE STOPPED PER TECHNICAL SPECIFICATION 3.9.3.A. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30511 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 05/21/96 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 12:58 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 12:15[EDT]| |NRC NOTIFIED BY: RICK HENRIQUEZ |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) SUCTION VALVES SWAPPED FROM THE | | CONDENSATE STORAGE TANK TO THE TORUS UNEXPECTEDLY. | | | | HPCI HAS BEEN DECLARED INOPERABLE PENDING RESOLUTION OF THE ROOT CAUSE. THE | | LICENSEE'S INSTRUMENTATION AND CONTROL TECHNICIANS ARE TROUBLESHOOTING THE | | SYSTEM. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30512 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 05/21/96 | |UNIT: [1] [2] [3] STATE: AL |NOTIFICATION TIME: 13:49 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 10:50[CDT]| |NRC NOTIFIED BY: RODNEY NACOSTE |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN 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 REFUELING | 0 REFUELING | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE ALABAMA DEPARTMENT OF ENVIRONMENTAL MANAGEMENT | | THAT ITS DISCHARGE PERMIT LIMIT FOR ZINC WAS EXCEEDED. | | | | ZINC IS USED FOR RAW WATER TREATMENT, AND EXCESSIVE ZINC WAS DISCHARGED TO | | THE TENNESSEE RIVER ALONG WITH RAW WATER. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30513 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CRYSTAL RIVER REGION: 2 |NOTIFICATION DATE: 05/21/96 | |UNIT: [3] [ ] [ ] STATE: FL |NOTIFICATION TIME: 14:20 [ET]| |RX TYPE: [3] B&W-L-LP |EVENT DATE: 05/20/96 | +------------------------------------------------+EVENT TIME: 12:00[EDT]| |NRC NOTIFIED BY: BILL BANDHAUER |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N Y 70 POWER OPERATION | 70 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AN ERROR IN ONE OF THE ASSUMPTIONS USED IN THE LARGE BREAK LOCA ANALYSIS | | UNDER 10 CFR 50.46 HAS BEEN CORRECTED. THE NEW CALCULATED PEAK CLAD | | TEMPERATURE IS ABOVE THE 2,200øF LIMIT. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | (REFER TO PREVIOUS EVENT NUMBERS 30500 AND 30504.) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30514 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CATAWBA REGION: 2 |NOTIFICATION DATE: 05/21/96 | |UNIT: [1] [2] [ ] STATE: SC |NOTIFICATION TIME: 15:39 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 11:00[EDT]| |NRC NOTIFIED BY: RONDA L. BAIN |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN RDO | |NLTR LICENSEE 24 HR REPORT | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE FOUND TWO SMOKE DETECTORS THAT HAD BEEN ISOLATED FROM THE FIRE | | ZONES THEY WERE SUPPOSED TO PROTECT. | | | | A FIRE BARRIER HAD BEEN BUILT BETWEEN THE DETECTORS AND THEIR ZONES IN FIRE | | ZONES 60 AND 69. THE LICENSEE WILL RELOCATE THE SMOKE DETECTORS AND WILL | | CONDUCT HOURLY FIRE WATCHES UNTIL THE WORK IS COMPLETED. THE LICENSEE WILL | | ALSO INSPECT ALL SMOKE DETECTORS TO ASSURE THAT NONE WERE INADVERTENTLY | | ISOLATED. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 30515 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: K-RAY, WHEELING, ILLINOIS |NOTIFICATION DATE: 05/21/96 | | CITY: LITCHFIELD REGION: 3 |NOTIFICATION TIME: 15:27 [ET]| | COUNTY: HILLSDALE STATE: MI |EVENT DATE: 04/26/96 | |LICENSE#: IL-010-10-03 AGREEMENT: N |EVENT TIME: 18:00[EDT]| | DOCKET: |LAST UPDATE DATE: 05/21/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JIM MCCORMICKBARGER RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: JAMES BALBO | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MICHIGAN SOUTH CENTRAL POWER AGENCY, LITCHFIELD, MICHIGAN | | | | A FIRE NEAR A DENSITY GAGE CONTAINING A 100-mCi Cs-137 SOURCE MIGHT HAVE | | CAUSED LEAKAGE OF RADIOACTIVE MATERIAL. THE MANUFACTURER OF THE SYSTEM, | | K-RAY OF WHEELING, ILLINOIS, HAS BEEN CONTACTED AND IS SENDING SOMEONE TO | | CHECK FOR LEAKAGE. THE AREA AROUND THE SOURCE HAS BEEN ROPED OFF. | | | | REGION 3 HAS (GIBBONS) HAS BEEN NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30516 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 05/21/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 16:58 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 14:30[EDT]| |NRC NOTIFIED BY: PHIL SANTINI |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE DEPARTMENT OF TRANSPORTATION/NATIONAL RESPONSE | | CENTER, THE NEW YORK DEPARTMENT OF ENVIRONMENTAL CONSERVATION, AND THE | | WESTCHESTER COUNTY BOARD OF HEALTH THAT 20 POUNDS OF FREON-22 WERE RELEASED | | FROM THE SIMULATOR BUILDING AIR CONDITIONER SYSTEM. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30517 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 05/21/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 18:33 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 15:40[EDT]| |NRC NOTIFIED BY: PHIL SANTINI |LAST UPDATE DATE: 05/21/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE NEW YORK DEPARTMENT OF ENVIRONMENTAL CONSERVATION | | AND THE WESTCHESTER COUNTY BOARD OF HEALTH THAT THE LICENSEE SPILLED 10 TO | | 15 GALLONS OF #2 FUEL OIL AT ITS GAS TURBINE FACILITY. A HAZMAT TEAM IS | | CLEANING IT UP. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30518 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 05/22/96 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 00:06 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 05/21/96 | +------------------------------------------------+EVENT TIME: 22:40[EDT]| |NRC NOTIFIED BY: GREG SOSSON |LAST UPDATE DATE: 05/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON 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 | A/R Y 100 POWER OPERATION | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AUTOMATIC REACTOR SCRAM FROM 100% POWER DUE TO HIGH REACTOR PRESSURE DURING | | MAIN STEAM ISOLATION VALVE (MSIV) TESTING | | | | WHEN INBOARD MSIV HV-041-1F022B WAS SLOWLY CLOSED DURING THE PERFORMANCE OF | | SURVEILLANCE TEST ST-041-619-1, UNIT 1 AUTOMATICALLY SCRAMMED DUE TO HIGH | | REACTOR PRESSURE. ALTHOUGH PRESSURE DID EXCEED THE REACTOR PROTECTION | | SYSTEM TRIP SETPOINT, IT DID NOT EXCEED THE REDUNDANT REACTIVITY CONTROL | | SYSTEM SETPOINT. THE SAFETY RELIEF VALVES DID NOT LIFT. A VALID GROUP 2B | | (RESIDUAL HEAT REMOVAL) ISOLATION SIGNAL WAS RECEIVED WHEN REACTOR VESSEL | | LEVEL DECREASED BELOW THE 12.5-INCH LEVEL-3 SETPOINT, BUT THE AFFECTED | | VALVES WERE ALREADY CLOSED. THERE WERE NO REACTOR CORE ISOLATION COOLING | | OR EMERGENCY CORE COOLING SYSTEM ACTUATIONS. ALL CONTROL RODS FULLY | | INSERTED, AND ALL SYSTEMS FUNCTIONED AS DESIGNED. | | | | THE UNIT IS CURRENTLY STABLE IN HOT SHUTDOWN. OPERATORS ARE UTILIZING THE | | FEEDWATER AND ELECTRO-HYDRAULIC CONTROL SYSTEMS FOR REACTOR VESSEL LEVEL | | AND PRESSURE CONTROL. THE MSIVs ARE OPEN, THE CONDENSER IS AVAILABLE AS A | | HEAT SINK, AND ALL CONTAINMENT PARAMETERS ARE NORMAL. | | | | UNIT RESTART IS CURRENTLY SCHEDULED FOR TODAY PENDING ADEQUATE ROOT CAUSE | | INVESTIGATION OF THE HIGH REACTOR PRESSURE SITUATION DURING THE MSIV TEST. | | APPARENTLY, THE SURVEILLANCE PROCEDURE THAT WAS BEING PERFORMED REQUIRED | | THE VALVE TO BE SLOWLY CLOSED LESS THAN 10% (IDEALLY) TO VERIFY REACTOR | | PROTECTION CHANNEL ACTUATION AND RECEIPT OF A HALF SCRAM SIGNAL. THE | | LICENSEE BELIEVES THAT THE MSIV DID START TO GO CLOSED BUT THAT IT DID NOT | | GO FULLY CLOSED. THE EXACT POSITION OF THE MSIV AT THE TIME OF THE SCRAM | | IS UNKNOWN. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30519 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 05/22/96 | |UNIT: [ ] [2] [ ] STATE: NC |NOTIFICATION TIME: 05:43 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 05/22/96 | +------------------------------------------------+EVENT TIME: 04:25[EDT]| |NRC NOTIFIED BY: TOM ARLOW |LAST UPDATE DATE: 05/22/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | A/R Y 99 POWER OPERATION | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AUTOMATIC REACTOR TRIP FROM 99% POWER DUE TO A REACTOR COOLANT PUMP TRIP | | | | A UNIT 2 REACTOR TRIP OCCURRED DUE TO A TRIP OF THE 'B' REACTOR COOLANT | | PUMP. THE INITIAL POWER LEVEL WAS 99%. THE PRELIMINARY INDICATION IS THAT | | THE REACTOR COOLANT PUMP TRIPPED DUE TO AN ELECTRICAL FAULT. THERE IS AN | | ONGOING INVESTIGATION INTO THE CAUSE OF THE APPARENT ELECTRICAL FAULT. | | DURING THE TRIP, AUXILIARY FEEDWATER AUTOMATICALLY STARTED AS EXPECTED DUE | | TO LOW-LOW STEAM GENERATOR LEVEL. ALL CONTROL RODS FULLY INSERTED, AND ALL | | SYSTEMS FUNCTIONED AS REQUIRED. THERE WERE NO EMERGENCY CORE COOLING | | SYSTEM ACTUATIONS, AND THE SAFETY RELIEF VALVES DID NOT LIFT. | | | | THE UNIT IS PRESENTLY STABLE IN MODE 3. NORMAL CHARGING AND LETDOWN, | | PRESSURIZER HEATERS AND SPRAYS, AND THE REMAINING THREE REACTOR COOLANT | | PUMPS ARE BEING UTILIZED FOR PRIMARY SYSTEM INVENTORY, PRESSURE, AND | | TRANSPORT CONTROL. AUXILIARY FEEDWATER HAS BEEN SECURED, AND MAIN | | FEEDWATER IS SUPPLYING THE STEAM GENERATORS. THE CONDENSER IS AVAILABLE AS | | A HEAT SINK, AND CONTAINMENT PARAMETERS ARE NORMAL. BOTH DIESEL GENERATORS | | AND ALL SAFETY SYSTEMS ARE AVAILABLE IF NEEDED. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+