U.S. Nuclear Regulatory Commission Operations Center Event Reports For 08/02/95 - 08/03/95 ** EVENT NUMBERS ** 29017 29138 29149 29150 29151 29152 29153 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29017 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BEAVER VALLEY REGION: 1 |NOTIFICATION DATE: 07/03/95 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 16:35 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 07/03/95 | +------------------------------------------------+EVENT TIME: 01:44[EDT]| |NRC NOTIFIED BY: J. P. SHIPE |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM LAZARUS 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 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SHORT DURATION RELEASE FROM PRIMARY AUXILIARY BUILDING VENT RESULTING IN AN | | ESF ACTUATION. | | | | AT 01:44, THE UNIT RECEIVED A HIGH-HIGH ALARM ON PRIMARY AUXILIARY BUILDING | | VENTILATION RADIATION MONITOR RM-VS-102B AND A HIGH ALARM ON PRIMARY | | AUXILIARY BUILDING VENTILATION RADIATION MONITOR RM-VS-101B. THIS RESULTED | | IN THE FOLLOWING ESF ACTUATIONS: TRAIN B PRIMARY AUXILIARY BUILDING SUPPLY | | AND EXHAUST FANS SHUT DOWN, AND TRAIN B PRIMARY AUXILIARY BUILDING | | VENTILATION WAS REDIRECTED TO THE MAIN FILTER BANKS. THE RADIATION | | MONITORS RETURNED TO NORMAL INDICATION AND WERE RESET IN 18 SECONDS. THE | | AUTOMATIC ACTUATIONS OCCURRED AS DESIGNED, AND THE VENTILATION EQUIPMENT | | WAS RETURNED TO THE NORMAL SYSTEM ARRANGEMENT AFTER THE RADIATION MONITORS | | WERE RESET. ALL OTHER SYSTEMS FUNCTIONED AS REQUIRED. | | | | PRELIMINARY ASSESSMENT OF THE ACTUATION AT THE TIME OF THE EVENT CONCLUDED | | THAT THE ACTUATION WAS INVALID. HOWEVER, UPON FURTHER INVESTIGATION OF THE | | AVAILABLE DATA, THE LICENSEE CONCLUDED THAT A VALID ESF ACTUATION DID | | OCCUR. THIS DETERMINATION WAS MADE AT 15:30. | | | | THE SOURCE OF THIS SHORT DURATION RELEASE IS UNKNOWN AT THIS TIME. THE | | LICENSEE'S INVESTIGATION IS CURRENTLY IN PROGRESS. | | | | THE RESIDENT INSPECTOR WILL BE NOTIFIED BY THE LICENSEE. | | | | *** UPDATE @ 1542 ON 8/2/95 FROM: DULICK BY:McGINTY *** | | THE LICENSEE IS RETRACTING THIS EVENT BASED ON THE DETERMINATION THAT THE | | SIGNAL WAS AN INVALID ESF ACTUATION SIGNAL. THE SIGNAL INVOLVED ONLY | | AUXILIARY BUILDING VENTILATION. THE LICENSEE HAS DISCUSSED THE RETRACTION | | WITH THE RESIDENT INSPECTOR, AND WILL NOT BE ISSUING AN LER. HOO NOTIFIED | | THE R1DO (DURR). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29138 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 07/31/95 | |UNIT: [1] [2] [ ] STATE: FL |NOTIFICATION TIME: 11:48 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 07/31/95 | +------------------------------------------------+EVENT TIME: 11:28[EDT]| |NRC NOTIFIED BY: SCISCENTE |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |THOMAS PEEBLES RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |AL CHAFFEE, NRR EO | | |AUSTIN FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | - UNUSUAL EVENT DECLARED DUE TO HURRICANE WARNING (TROPICAL STORM ERIN) - | | | | LICENSEE HAS DECLARED AN UNUSUAL EVENT DUE TO A CONFIRMED HURRICANE WARNING | | FOR THE EAST COAST OF FLORIDA FROM SEBASTIAN INLET SOUTHWARD THROUGHOUT THE | | FLORIDA KEYS DUE TO TROPICAL STORM ERIN (PRESENTLY LOCATED APPROXIMATELY | | 400 MILES EAST-SOUTHEAST OF FLORIDA) AND IS IMPLEMENTING THEIR SEVERE | | WEATHER PREPARATION PROCEDURE. | | | | ALL EMERGENCY DIESEL GENERATORS AND ALL EMERGENCY CORE COOLING SYSTEMS | | ARE OPERABLE ON BOTH UNITS. | | | | LICENSEE NOTIFIED STATE OFFICIALS AND THE NRC RESIDENT INSPECTOR AND WILL | | NOTIFY OTHER GOVERNMENT AGENCIES AND LOCAL OFFICIALS AND WILL ISSUE A PRESS | | RELEASE. | | | | NOTE: SEE EVENT #29137 FOR A RELATED EVENT. | | | | * * * UPDATE AT 0918 ON 08/01/95 BY SCISCENTE ENTERED BY HOO JOLLIFFE * * * | | | | AT 0805 ON 08/01/95, LICENSEE BEGAN TO SHUT UNIT 2 DOWN FROM 100% POWER | | AT 20% PER HOUR IN ANTICIPATION OF THE ARRIVAL OF HURRICANE ERIN. | | | | LICENSEE NOTIFIED STATE OFFICIALS AND THE NRC RESIDENT INSPECTOR AND | | WILL NOTIFY OTHER GOVERNMENT AGENCIES AND LOCAL OFFICIALS AND WILL | | ISSUE A PRESS RELEASE. | | | | HOO NOTIFIED R2DO PEEBLES, NRR EO CHAFFEE, AND AEOD ROSS. | | | | *** UPDATE @ 1201 EDT ON 8/1/95 FROM: SCISCENTE BY:McGINTY *** | | AS OF 1150 EDT, THE LICENSEE HAS COMPLETED SHUTTING DOWN UNIT 2, AND HAS | | COMMENCED A SHUTDOWN OF UNIT 1 FROM 100% POWER, AT 20% PER HOUR. NEITHER | | UNIT HAS EXPERIENCED ANY OPERATIONAL DIFFICULTIES. THE LICENSEE INFORMED | | THE RESIDENT INSPECTOR. HOO NOTIFIED THE R2DO (PEEBLES), NRR EO (CHAFFEE) | | AND AEOD (ROSS/BAILEY). | | | | *** UPDATE @ 2100 EDT ON 8/1/95 BY:McGINTY *** | | THE NRC HAS ENTERED THE MONITORING PHASE OF NORMAL MODE, EFFECTIVE AT 2100 | | EDT ON 8/1/95. THE DECISION WAS MADE DURING A CONFERENCE CALL WITH AEOD | | (ROSS/CONGEL), R2 (REYES), AND EO (CHAFFEE). HOO NOTIFIED R2DO (CASTO) AND | | THE RCT (SCARFO) FOR REMAINING FED NOTIFICATIONS. | | | | * * * UPDATE 0546 8/2/95 FROM FIELDS TAKEN BY STRANSKY * * * | | | | THE LICENSEE TERMINATED THE UNUSUAL EVENT AT 0542. THE HURRICANE WAS | | DOWNGRADED TO A TROPICAL STORM AT 0500. THE NRC RESIDENT INSPECTOR HAS | | BEEN INFORMED. THE LICENSEE IS CURRENTLY PERFORMING A SITE WALKDOWN AND | | INSPECTIONS OF EMERGENCY EVACUATION ROUTES. NOTIFIED R2 (MERSCHOFF), EO | | (BOGER), FEMA (EARL). | | | | ***UPDATE 08:00 8/2/95 BY SEBROSKY*** | | COMMISSIONERS ASSISTANTS BRIEFING FOR UPDATE ON TROPICAL STORM ERIN | | NOTIFICATIONS (*INDICATES OFFICE DID NOT PARTICIPATE): AEOD(JORDAN), | | ERB(MARKSBERRY), COMM JACKSON(PARKER), ROGERS(SORENSEN), EDO(TRACY), | | EO(CHAFFEE), PAO(BEECHER), CAO(KEELING), SECY(HART), STATE(*), IP(*), | | BRIEFER(MERSCHOFF). | | | | HOO NOTE: THE NRC EXITED THE MONITORING MODE AT 08:30. RCT NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29149 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ZION REGION: 3 |NOTIFICATION DATE: 08/02/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 09:23 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/01/95 | +------------------------------------------------+EVENT TIME: 11:36[CDT]| |NRC NOTIFIED BY: ANDY TORREZ |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: JOSEPH SEBROSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JIM MCCORMICKBARGER RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | LICENSEE IS MAKING A REPORT DUE TO DISCOVERING ALCOHOL WITHIN THE PROTECTED | | AREA. | | | | A PINT OF VODKA, WITH APPROXIMATELY HALF OF IT MISSING, WAS FOUND BY A | | SECURITY GUARD IN A PORTABLE TOILET INSIDE THE PROTECTED AREA. AT THIS | | TIME THE LICENSEE DOES NOT KNOW HOW THE BOTTLE WAS INTRODUCED INTO THE | | PROTECTED AREA AND IS CONTINUING TO INVESTIGATE. | | | | THE LICENSEE HAS NOTIFIED THE RESIDENT INSPECTOR AND REGION III(BELANGER). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29150 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PRAIRIE ISLAND REGION: 3 |NOTIFICATION DATE: 08/02/95 | |UNIT: [1] [2] [ ] STATE: MN |NOTIFICATION TIME: 09:28 [ET]| |RX TYPE: [1] W-2-LP,[2] W-2-LP |EVENT DATE: 08/02/95 | +------------------------------------------------+EVENT TIME: 07:45[CDT]| |NRC NOTIFIED BY: DOUG SMITH |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: JOSEPH SEBROSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JIM MCCORMICKBARGER RDO | |ADEG 50.72(b)(1)(ii) DEGRAD COND DURING OP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 SERVICE WATER SYSTEM FLOW TO SOME COMPONENTS WAS FOUND TO BE BELOW FSAR | | CRITERIA UNDER CERTAIN ACCIDENT CONDITIONS. | | | | THE FOLLOWING IS A TEXT OF A FACSIMILE FROM THE LICENSEE: | | | | "ENGINEERING DESIGN BASIS AND HYDRAULIC MODEL DEVELOPMENT ACTIVITIES IN | | PREPARATION FOR A FUTURE SERVICE WATER INSPECTION (SWSOPI) EVALUATED THE | | OPERABILITY OF THE COOLING WATER SYSTEM IN WORST CASE OPERATING MODES. RUNS | | OF THE COMPUTER HYDRAULIC MODEL, ASSUMING; DESIGN BASIS ACCIDENT ON ONE | | UNIT, SECOND UNIT AT HOT SHUTDOWN, LOSS OF OFFSITE POWER, NO INSTRUMENT AIR | | AVAILABLE, [AND] A WORST CASE SINGLE ACTIVE FAILURE SHOWED DEGRADED COOLING | | WATER FLOW TO THE CONTAINMENT FAN COIL UNITS AND THE UNIT 1 EMERGENCY | | DIESEL GENERATORS. THE FLOW DEGRADATION DECREASED THE DESIGN MARGIN FOR | | HEAT REMOVAL BY THE COOLING WATER SYSTEM BUT DID NOT AFFECT THE COMPONENT | | OPERABILITY. | | | | THIS REPORT IS BEING MADE BASED UPON PRELIMINARY ENGINEERING ANALYSES. | | REVISIONS TO SYSTEM OPERATING PROCEDURES AND SYSTEM MODIFICATIONS ARE BEING | | CONSIDERED TO RESTORE THE DESIGN MARGIN. NO MODIFICATIONS OR PROCEDURE | | CHANGES WILL BE MADE UNTIL THE ANALYSES ARE VERIFIED AND ACCEPTED SINCE ALL | | COMPONENTS ARE PRESENTLY CONSIDERED OPERABLE." END OF TEXT. | | | | THE LICENSEE IS NOT CURRENTLY IN A TECH SPEC ACTION STATEMENT BECAUSE OF | | THIS PROBLEM. THE UNIT 2 DIESEL GENERATORS ARE NOT AFFECTED BY THIS | | PROBLEM BECAUSE THEY ARE NOT WATER COOLED. | | | | THE LICENSEE HAS NOTIFIED THE RESIDENT INSPECTOR AND REGION III(LOUGHEED). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29151 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WATERFORD REGION: 4 |NOTIFICATION DATE: 08/02/95 | |UNIT: [3] [ ] [ ] STATE: LA |NOTIFICATION TIME: 20:21 [ET]| |RX TYPE: [3] CE |EVENT DATE: 08/02/95 | +------------------------------------------------+EVENT TIME: 18:53[CDT]| |NRC NOTIFIED BY: WYNN |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |JOHN PELLET RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |BRUCE BOGER EO | | |STEINDRUFF FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UE DECLARED DUE TO A HURRICANE WARNING BEING POSTED FOR ST. CHARLES PARISH. | | | | THE LICENSEE DECLARED AN UNUSUAL EVENT AT 1853 CDT, BASED ON ST. CHARLES | | PARISH UNDER A HURRICANE WARNING. THE UNIT IS CURRENTLY OPERATING AT 100% | | AND IS NOT EXPERIENCING ANY OPERATIONAL DIFFICULTIES. THE LICENSEE HAS | | IMPLEMENTED PERFORMANCE OF THE OFF-NORMAL PROCEDURE FOR HURRICANE | | PREPARATION. THE LICENSEE WILL BE VERIFYING THE OPERABILITY OF THE EDG's | | LATER ON TONIGHT. THE BASIS FOR TERMINATING THE UNUSUAL EVENT WOULD BE THE | | REMOVAL OF THE HURRICANE WARNING FOR ST. CHARLES PARISH. | | | | THE LICENSEE WILL INFORM THE NRC OPERATIONS CENTER IF SITE OR PLANT | | CONDITIONS CHANGE. ERIN IS CURRENTLY A TROPICAL STORM, LOCATED AT 28.8øN | | AND 84.7øW AS OF 2000 EDT. WINDS ARE PRESENTLY 70 MPH, WITH GUSTS UP TO 85 | | MPH. ERIN IS MOVING WNW AT 17MPH, EXPECTED TO MOVE PARALLEL TO THE FLORIDA | | PANHANDLE THIS EVENING. THERE IS A CHANCE THAT ERIN WILL STRENGTHEN TO A | | CATEGORY ONE HURRICANE BEFORE MOVING INLAND. THE HURRICANE WARNING IS IN | | EFFECT FROM THE MOUTH OF THE SUWANNEE RIVER WESTWARD TO THE MOUTH OF THE | | MISSISSIPPI RIVER, INCLUDING NEW ORLEANS. PROJECTED LANDFALL OF ERIN IS | | THURSDAY MORNING AROUND 0800 CDT. THE LICENSEE INFORMED STATE AND LOCAL | | AUTHORITIES AND THE RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29152 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 08/02/95 | |UNIT: [1] [ ] [ ] STATE: FL |NOTIFICATION TIME: 21:58 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 08/02/95 | +------------------------------------------------+EVENT TIME: 19:00[EDT]| |NRC NOTIFIED BY: SNYDER |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES CASTO RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION |BRUCE BOGER EO | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MAIN STEAM ISOLATION DURING COOLDOWN TO REPAIR A RCP SEAL PACKAGE. | | | | UNIT 1 WAS IN MODE 3 MAKING PREPARATIONS TO RESTART FOLLOWING A | | PRECAUTIONARY SHUTDOWN DUE TO THE PASSING HURRICANE ERIN. AT 0805 EDT ON | | 8/2/95, THE FIRST STAGE OF THE '1A2' REACTOR COOLANT PUMP (RCP) SEAL | | FAILED. AT 1750 EDT, THE SECOND STAGE SEAL FAILED ON THE '1A2' RCP, AT | | WHICH TIME THE OPERATORS MANUALLY SECURED THE PUMP PER PROCEDURE. | | | | A CONTROLLED RCS COOLDOWN AND DEPRESSURIZATION TO MODE 5 WAS COMMENCED AT | | THAT TIME. DURING THE COOLDOWN, AT 1900 EDT, A VALID MAIN STEAM ISOLATION | | SIGNAL (MSIS) OCCURRED ON LOW STEAM GENERATOR PRESSURE, DUE TO THE FAILURE | | TO BLOCK THE MAIN STEAM ISOLATION ACTUATION. AT 1907 EDT, THE MAIN STEAM | | ISOLATION SIGNAL WAS BLOCKED AND RESET. | | | | THE OPERATORS RECEIVED THE MAIN STEAM ISOLATION PERMISSIVE AT 700#, AND THE | | BLOCKING OPERATION IS LISTED IN THE COOLDOWN PROCEDURE. THE OPERATORS | | ACKNOWLEDGED RECEIPT OF THE PERMISSIVE, BUT WERE ALSO TRYING TO DIAGNOSE | | THE SEAL FAILURES AND DID NOT BLOCK THE MSIS PRIOR TO REACHING THE 600# | | SETPOINT. | | | | THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR. SEE RELATED EVENT | | #29153. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29153 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 08/02/95 | |UNIT: [1] [ ] [ ] STATE: FL |NOTIFICATION TIME: 21:58 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 08/02/95 | +------------------------------------------------+EVENT TIME: 21:25[EDT]| |NRC NOTIFIED BY: SNYDER |LAST UPDATE DATE: 08/02/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |CHARLES CASTO RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |BRUCE BOGER EO | | |BELCHER FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PRECAUTIONARY UE DECLARED DUE TO A 2 gpm IDENTIFIED LEAK RATE CAUSED BY THE | | FAILURE OF THE '1A2' RCP SEAL PACKAGE. | | | | AT 2125 EDT ON 8/2/95, A PRECAUTIONARY UNUSUAL EVENT WAS DECLARED DUE TO | | THE CONFIRMED IDENTIFICATION OF A 2 gpm LEAK RATE FROM THE '1A2' SEAL | | PACKAGE. USING CONTROL ROOM INDICATIONS, IT HAS BEEN DETERMINED THAT THE | | LEAK IS BEING COLLECTED TO THE REACTOR CAVITY SUMP. THE LEAK RATE IS | | CURRENTLY STEADY AT 2 gpm, WITH A COOLDOWN IN PROGRESS AND RCS TEMPERATURE | | AT 370øF AND RCS PRESSURE AT 530 psia. THE UNIT IS BEING DEPRESSURIZED AND | | COOLED DOWN TO MODE 5 FOR REPAIRS ON THE '1A2' RCP SEAL. THE LICENSEE | | SECURED THE '1A2' RCP UPON INDICATION OF THE SECOND STAGE SEAL FAILURE. THE | | OTHER THREE RCP'S REMAIN IN OPERATION. | | | | THE LICENSEE HAS NOTIFIED THE STATE AND LOCAL AGENCIES AND THE RESIDENT | | INSPECTOR. UNIT 1 HAS A 1 gpm UNIDENTIFIED LEAKAGE AND 10 gpm IDENTIFIED | | LEAKAGE ALLOWABLE TECH SPEC, AND THUS THE UE DECLARATION IS PRECAUTIONARY. | | A PRIMARY COOLANT SYSTEM SAMPLE DRAWN TODAY WAS NORMAL AT 0.15 | | micro-curies/ml. THE CONTAINMENT RADIATION GASEOUS MONITORING SHOWS A VERY | | SLIGHT INCREASE IN LEVELS. SEE RELATED EVENT #29152. | +------------------------------------------------------------------------------+