U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/28/95 - 09/29/95 ** EVENT NUMBERS ** 29325 29379 29385 29386 29387 29388 29389 29390 29391 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29325 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 09/13/95 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 13:41 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 09/13/95 | +------------------------------------------------+EVENT TIME: 08:20[CDT]| |NRC NOTIFIED BY: REED |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BARNES RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | |BLANCHARD EPA | | |GEORGE PANGBORN NMSS | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 93 POWER OPERATION | 93 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | STATE OF NEBRASKA NOTIFIED OF A CONTAMINATED SHIPMENT. | | | | AT 08:20 ON 9/13/95, THE STATE OF NEBRASKA DEPARTMENT OF PUBLIC HEALTH WAS | | NOTIFIED OF THE RECEIPT OF A CONTAMINATED SHIPMENT ONSITE. THE SHIPMENT | | CONSISTED OF SCAFFOLDING WHICH WAS TRANSPORTED TO THE SITE BY A CARRIER | | WHICH WAS NOT LICENSED TO SHIP RADIOACTIVE MATERIALS. THE SHIPMENT WAS NOT | | EXPECTED TO BE CONTAMINATED. | | | | AT 16:00 ON 9/12/95, A CONTRACT EMPLOYEE WORKING IN THE AREA WHERE THE | | SCAFFOLDING WAS STAGED NOTICED THE REMNANTS OF "CONTAMINATED MATERIAL" | | STICKERS ON THE SCAFFOLDING AND NOTIFIED RADIOLOGICAL PROTECTION PERSONNEL. | | AT 16:15, THE SCAFFOLDING WAS SURVEYED, AND VARIOUS LEVELS OF FIXED | | CONTAMINATION WERE DETECTED (UP TO 150,000 DPM/100 CMý). NO LOOSE | | CONTAMINATION WAS FOUND. THE LICENSEE HAS ERECTED RADIOLOGICAL BARRIERS | | AROUND THE SCAFFOLDING. FURTHER SURVEYS HAVE FOUND NO TRANSFER OF | | CONTAMINATION TO PLANT PERSONNEL OR EQUIPMENT. | | | | THE LICENSEE IS CURRENTLY ATTEMPTING TO CONTACT THE SHIPPER REGARDING THIS | | EVENT. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | | | | * * * * UPDATE 1742EDT 9/22/95 FROM JIM DEDIC BY S. SANDIN * * * | | | | "ON 9/20/95, AN ADDITIONAL LOAD OF SCAFFOLDING WAS DELIVERED TO THE SITE BY | | THE SAME SHIPPING COMPANY. DURING THE MORNING OF 9/21/95, A SURVEY WAS | | PERFORMED TO SEE IF ANY OF THESE MATERIALS WERE SIMILARLY CONTAMINATED. ONE | | PIECE OF SCAFFOLDING WAS FOUND TO HAVE A FIXED CONTAMINATION LEVEL OF | | APPROXIMATELY 20,000 DPM/100 CM2 ON ONE AREA. NO REMOVABLE CONTAMINATION | | WAS DETECTED. THE SCAFFOLDING HAS BEEN PLACED IN A STAGING AREA WHICH HAS | | BEEN ROPED OFF AS CONTAINING RADIOACTIVE MATERIALS. THE STATE OF NEBRASKA | | WAS INFORMED OF THIS OCCURRENCE AT 1455 CDST ON 9/22/95. THIS ENS | | NOTIFICATION IS BEING MADE AS A FOLLOWUP TO THE ONE MADE ON 9/13/95 | | PURSUANT TO 10CFR50.72(b)(2)(vi)." THE LICENSEE INFORMED THE STATE AND | | OTHER GOVERNMENT AGENCIES INCLUDING THE NRC RESIDENT INSPECTOR. NOTIFIED | | R4DO(MURRAY), NMSS EO(PIERSON) AND EPA(RUTHERFORD) | | | | * * UPDATE AT 1851 EDT ON 9/28/95 FROM DOUG BILLESBACH TAKEN BY KARSCH * * | | SIX ADDITIONAL PIECES OF SCAFFOLDING WITH FIXED CONTAMINATION ON THEM WERE | | DISCOVERED AT 1000 CDT TODAY. THEY HAD AN AVERAGE ACTIVITY LEVEL OF 15,000 | | DPM/100 CM2. THEY HAVE BEEN MOVED FROM A WAREHOUSE OUTSIDE THE PROTECTED | | AREA TO A ROPED OFF AREA INSIDE THE PROTECTED AREA. THE LICENSEE INFORMED | | THE NRC RESIDENT INSPECTOR AND WILL INFORM THE STATE OF NEBRASKA. NOTIFIED | | R4DO (SPITZBERG), NMSS EO (WEBER), EPA (RUTHERFORD). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29379 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 09/27/95 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 08:48 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 09/27/95 | +------------------------------------------------+EVENT TIME: 08:24[EDT]| |NRC NOTIFIED BY: ANDREW WISNIEWSKI |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFF ANDERSON RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | EMERGENCY OFFSITE SIRENS INOPERABLE. | | | | AT 08:24 EDT LICENSEE WAS NOTIFIED BY THEIR CONTRACTOR (JPS) THAT THEIR | | NOAA (NATIONAL OCEANOGRAPHIC ATMOSPHERIC ADMINISTRATION) TRANSMITTER WAS | | INOPERABLE. THIS TRANSMITTER IS USED TO INITIATE THEIR EMERGENCY OFFSITE | | SIRENS. LICENSEE DID NOT KNOW WHAT WAS WRONG WITH THE TRANSMITTER. | | CONTRACTOR (JPS) IS CURRENTLY WORKING ON REPAIRING THE TRANSMITTER. | | LICENSEE HAS TO NOTIFY LOCAL OFFICIALS AND THE STATES OF VERMONT, NEW | | HAMPSHIRE, AND MASSACHUSETTS OF THIS EVENT. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | * * * UPDATE ON 9/28/95 AT 1242 EDT FROM WISNIEWSKI TAKEN BY KARSCH * * * | | THE NOAA TRANSMITTER IS NOT USED TO ACTIVATE THE SIRENS. THE SIRENS WERE | | OPERABLE THROUGH OUT THIS EVENT. THE NOAA TRANSMITTER IS USED TO PROVIDE | | RADIO NOTIFICATION TO CERTAIN HOUSEHOLDS WHICH ARE UNABLE TO HEAR THE | | SIREN. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. R1DO (ANDERSON) | | NOTIFIED. | | | | * * * UPDATE ON 9/28/95 AT 1330 EDT FROM WISNNIEWSKI TAKEN BY KARSCH * * * | | AMES HILL NOAA TRANSMITTER RETURNED TO SERVICE AT 1230 EDT ON 9/27/95. THE | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. R1DO (ANDERSON) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29385 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FARLEY REGION: 2 |NOTIFICATION DATE: 09/28/95 | |UNIT: [1] [2] [ ] STATE: AL |NOTIFICATION TIME: 01:39 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 09/28/95 | +------------------------------------------------+EVENT TIME: 00:06[CDT]| |NRC NOTIFIED BY: BILL ARENS |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PAUL KELLOGG 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 REFUELING | 0 REFUELING | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | POWER TEMPORARILY LOST TO THE ONSITE EOF | | | | POWER WAS LOST TO THE ONSITE EOF WHILE TRANSFERRING THE POWER SUPPLY FOR | | THE EOF. THE SOURCE OF POWER TO THE EOF WAS BEING TRANSFERRED FROM THE | | UNIT AUX TRANSFORMER TO THE STARTUP TRANSFORMER WHEN POWER WAS LOST AT | | 0006. POWER WAS RESTORED AT 0030 WHEN THE SUPPLY WAS SHIFTED BACK TO THE | | UNIT AUX TRANSFORMER. | | | | THE ALTERNATE EOF, LOCATED OFFSITE, WAS NOT AFFECTED. THE REASON FOR THE | | LOSS OF POWER IS STILL UNDER INVESTIGATION. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29386 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 09/28/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 09:25 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/28/95 | +------------------------------------------------+EVENT TIME: 07:24[CDT]| |NRC NOTIFIED BY: DAN ACKERMAN |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION |AL CHAFFEE EO | | | | | |LOREN BUSH NRR | | |JOHN DAVIDSON NMSS | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 82 POWER OPERATION | 82 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | BOMB THREAT | | | | AN UNSUBSTANTIATED BOMB THREAT WAS RECEIVED AT THE SITE. FULL DETAILS ARE | | AVAILABLE IN THE HOO LOG. THIS EVENT WAS CALLED IN AS AN OFFSITE | | NOTIFICATION BASED ON THE SITE MAKING A CALL TO THE COUNTY SHERIFF. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 29387 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: CENTRAL PLAINS CLINIC |NOTIFICATION DATE: 09/28/95 | | CITY: SIOUX FALLS REGION: 4 |NOTIFICATION TIME: 12:57 [ET]| | COUNTY: MINNEHAHA STATE: SD |EVENT DATE: 09/18/95 | |LICENSE#: 40-268-65-01 AGREEMENT: N |EVENT TIME: 11:40[CDT]| | DOCKET: |LAST UPDATE DATE: 09/28/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |BLAIR SPITZBERG RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: KAY SCHOPPERS | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CENTRAL PLAINS CLINIC, SIOUX FALLS, S.D. | | THREE OCCURRENCES OF MISADMINISTRATIONS TO THREE PATIENTS ON THE SAME DAY. | | | | THREE PATIENTS WERE GIVEN DOSES OF IODINE 131 AT 1140, 1200, AND 1345 CDT | | ON 9/18/95. THEY WERE SCHEDULED FOR 5 MILLI-CURIES EACH. IT WAS LATER | | FOUND (ON 9/28/95) THAT THEY ONLY RECEIVED HALF THE SCHEDULED DOSE, ONE | | CAPSULE VERSUS TWO CAPSULES. THE PATIENT RAMIFICATIONS ARE MINIMAL AS THE | | ACCEPTABLE DOSE RANGE IS TWO TO FIVE MILLI-CURIES. THE PATIENTS WILL BE | | INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29388 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WATTS BAR REGION: 2 |NOTIFICATION DATE: 09/28/95 | |UNIT: [1] [ ] [ ] STATE: TN |NOTIFICATION TIME: 13:41 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/20/95 | +------------------------------------------------+EVENT TIME: 00:00[EDT]| |NRC NOTIFIED BY: P.L. PACE |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PAUL KELLOGG RDO | |GGGG 50.55 UNSPECIFIED PARAGRAPH | | | | | | |VERN HODGE NRR | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 UNDER CONSTRUCT | 0 UNDER CONSTRUCT | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE FOLLOWING IS THE TEXT OF A FAX RECEIVED FROM THE LICENSEE: | | | | "SIGNIFICANT CHECK VALVE CHATTER AND PIPE VIBRATION FOR BOTH UNIT 1 MOTOR | | DRIVEN AUXILIARY FEEDWATER (AFW) PUMPS WERE OBSERVED DURING HOT FUNCTIONAL | | TESTING AT LOW FEEDWATER FLOW. | | | | "AFW SYSTEM PERFORMANCE IS ESSENTIAL FOR MITIGATION OF SEVERAL OF THE | | EVENTS WHICH FORM THE LICENSING BASIS FOR WATTS BAR. THE AFW SYSTEM | | CONSISTS OF TWO MOTOR DRIVEN AFW PUMPS AND ONE STEAM TURBINE DRIVEN PUMP | | CONFIGURED INTO THREE TRAINS. EACH MOTOR DRIVEN PUMP FEEDS TWO STEAM | | GENERATORS AND THE STEAM TURBINE DRIVEN PUMP SUPPLIES A COMMON HEADER | | CAPABLE OF FEEDING ALL STEAM GENERATORS. THE AFW SYSTEM REMOVES REACTOR | | COOLANT SYSTEM (RCS) HEAT BY ASSURING THE REQUIRED SUPPLY OF WATER TO THE | | STEAM GENERATORS (SGs) WHEN THE MAIN FEEDWATER (MFW) SYSTEM IS NOT | | AVAILABLE AND THE RCS IS ABOVE THE OPERATIONAL PRESSURE AND TEMPERATURE | | LIMITS OF THE RESIDUAL HEAT REMOVAL (RHR) SYSTEM. | | | | "PIPING VIBRATION COULD CAUSE THE LOSS OF BOTH MOTOR DRIVEN AFW TRAINS AND | | A SINGLE FAILURE IN THE TURBINE DRIVEN AFW PUMP WOULD RENDER ALL AFW TRAINS | | INOPERABLE AND UNABLE TO REMOVE DECAY HEAT VIA THE STEAM GENERATORS. | | | | "SUBSEQUENT TESTING, WITH THE INTERNALS REMOVED FROM THE DISCHARGE CHECK | | VALVE OF THE B TRAIN MOTOR DRIVEN AUXILIARY FEEDWATER PUMP AND WITH | | ADDITIONAL PIPE SUPPORT SHIMS INSTALLED, INDICATED STABLE PUMP PERFORMANCE | | WITH NO ABNORMAL PRESSURE PULSATIONS OR PIPE VIBRATIONS. EVALUATIONS HAVE | | DETERMINED THAT NUCLEAR SAFETY IS NOT AFFECTED WITH THE CHECK VALVE | | INTERNALS REMOVED." | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | HOO NOTE: THE LICENSEE STATED THAT THE CHECK VALVE WITH THE INTERNALS | | REMOVED IS ONE OF THREE CHECK VALVES IN SERIES WHICH PREVENT FEEDING A | | FAULTED STEAM GENERATOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 29389 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: MIAMI VALLEY HOSPITAL |NOTIFICATION DATE: 09/28/95 | | CITY: DAYTON REGION: 3 |NOTIFICATION TIME: 17:23 [ET]| | COUNTY: MONTGOMERY STATE: OH |EVENT DATE: 09/21/95 | |LICENSE#: 34-00341-06 AGREEMENT: N |EVENT TIME: 15:30[EDT]| | DOCKET: |LAST UPDATE DATE: 09/28/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |MONTE PHILLIPS RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: FRANK BLOE | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MIAMI VALLEY HOSPITAL, DAYTON, OHIO. | | THE PATIENT WAS INTENDED TO RECEIVE A DOSE OF 7 MICRO-CURIES OF IODINE 131 | | FOR AN UPTAKE STUDY. INSTEAD THE PATIENT RECEIVED A DOSE OF 77 | | MICRO-CURIES, THE SCAN DOSE. NO ADVERSE MEDICAL CONSEQUENCES RESULTED. THE | | PATIENT HAS BEEN ADVISED. THE LICENSEE REPORTED THIS EVENT TO REGION 3 | | (PISKURA). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29390 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 09/28/95 | |UNIT: [ ] [ ] [3] STATE: IL |NOTIFICATION TIME: 23:46 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 09/28/95 | +------------------------------------------------+EVENT TIME: 21:57[CDT]| |NRC NOTIFIED BY: JERRY LIZALEK |LAST UPDATE DATE: 09/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | A/R Y 77 POWER OPERATION | 0 HOT SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR SCRAM DUE TO GENERATOR TRIP . | | | | WHILE RAMPING POWER UP THE UNIT 3 GENERATOR TRIPPED AS A RESULT OF THE | | GENERATOR EXCITATION REACHING THE HIGH LIMIT. IMMEDIATELY FOLLOWING THE | | GENERATOR TRIP A REACTOR SCRAM OCCURRED DUE TO A GENERATOR/TURBINE LOAD | | MISMATCH. ALL CONTROL RODS FULLY INSERTED FOLLOWING THE SCRAM. DECAY HEAT | | IS BEING REMOVED VIA BYPASS TO THE MAIN CONDENSER. ALL SAFETY EQUIPMENT | | AND GROUP ISOLATIONS (GROUP 2 & 3) FUNCTIONED AS REQUIRED WHEN REACTOR | | VESSEL LEVEL REACHED +8 INCHES. THE ROOT CAUSE OF THE EXCITATION PROBLEM | | HAS NOT BEEN DETERMINED. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 0127 ON 9/29/95 BY LIZALEK TAKEN BY WEAVER * * * | | AFTER REACTOR WATER LEVEL RECOVERED TO AROUND +15", A SECOND SET OF GROUP 2 | | & 3 ISOLATIONS OCCURRED. REACTOR PRESSURE WAS BEING CONTROLLED BY THE EHC | | SYSTEM USING THE BYPASSES. THE FIRST BYPASS BEGINS TO OPEN AT 920 PSIG. | | DECAY HEAT CAUSED REACTOR PRESSURE TO RISE TOWARDS THE BYPASS SETPOINT. | | REACTOR VESSEL WATER LEVEL WAS BEING AUTOMATICALLY CONTROLLED BY THE FEED | | SYSTEM AT THE POST SCRAM SETPOINT OF +15". THE INCREASE IN REACTOR | | PRESSURE CAUSED FURTHER SHRINK IN THE REACTOR VESSEL WATER LEVEL. THE FEED | | SYSTEM BEGAN TO RESPOND BY INCREASING FEED FLOW, BUT NOT BEFORE LEVEL HAD | | DECREASED TO AROUND +10". SINCE THE GROUP 2 & 3 ISOLATION SETPOINTS ARE | | CONSERVATIVELY SET ABOVE THE REQUIRED 8", THESE ISOLATIONS WERE RECEIVED. | | | | THE PLANT IS CURRENTLY STABLE WITH REACTOR WATER LEVEL BEING MAINTAINED | | NEAR +30". THE LICENSEE PROVIDED THIS ADDITIONAL INFORMATION BECAUSE IT | | CONSTITUTED A SECOND ESF ACTUATION. THE SECOND SET OF ACTUATIONS OCCURRED | | EARLY IN THE COURSE OF THIS EVENT. HOO NOTIFIED RDO (PHILLIPS) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29391 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOK REGION: 3 |NOTIFICATION DATE: 09/29/95 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 04:46 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/29/95 | +------------------------------------------------+EVENT TIME: 02:50[EDT]| |NRC NOTIFIED BY: GUY TOLLAS |LAST UPDATE DATE: 09/29/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A FUEL ASSEMBLY IS PINCHED BETWEEN THE UPENDER AND THE TRANSFER CANAL WALL | | | | "AT 0250 A NEW FUEL ASSEMBLY BECAME STUCK BETWEEN THE UPENDER AND THE SPENT | | FUEL POOL WALL WHILE REFUELING OPERATIONS WERE IN PROGRESS. NO RADIOACTIVE | | RELEASE OCCURRED. FUEL HANDLING ACTIVITIES WERE STOPPED PENDING AN | | INVESTIGATION OF THIS EVENT." | | | | THE FUEL ASSEMBLY BECAME STUCK WHEN THE UPENDER WAS BEING RAISED TO TAKE | | THE FUEL ASSEMBLY. THE FUEL WAS POSITIONED TO LOW BY THE CRANE WHEN THE | | UPENDER WAS RAISED. THE FUEL ASSEMBLY IS CURRENTLY BEING SUPPORTED BY THE | | UPENDER AND THE SPENT FUEL POOL WALL (BASED ON THE LACK OF TENSION IN THE | | SUPPORTING CABLE). CAMERAS ARE BEING USED TO OBTAIN AN ESTIMATION OF THE | | AMOUNT OF DAMAGE TO THE FUEL ASSEMBLY. THE LICENSEE IS DEVELOPING A PLAN | | TO DEAL WITH THIS SITUATION. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | +------------------------------------------------------------------------------+