U.S. Nuclear Regulatory Commission Operations Center Event Reports For 07/31/95 - 08/01/95 ** EVENT NUMBERS ** 29137 29138 29139 29140 29141 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29137 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: TURKEY POINT REGION: 2 |NOTIFICATION DATE: 07/31/95 | |UNIT: [3] [4] [ ] STATE: FL |NOTIFICATION TIME: 11:45 [ET]| |RX TYPE: [3] W-3-LP,[4] W-3-LP |EVENT DATE: 07/31/95 | +------------------------------------------------+EVENT TIME: 11:25[EDT]| |NRC NOTIFIED BY: RICK ADAMSON |LAST UPDATE DATE: 07/31/95 | |HQ OPS OFFICER: JOSEPH SEBROSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |THOMAS PEEBLES RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |AL CHAFFEE EO | | |AUSTIN 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 | | 4 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED DUE TO A HURRICANE WARNING BEING POSTED FOR THE | | AREA. | | | | ALL EMERGENCY CORE COOLING SYSTEMS AND EMERGENCY DIESEL GENERATORS (EDGs) | | ARE OPERABLE. THE LICENSEE PLANS TO TEST THE EDGs LATER TODAY DUE TO THE | | HURRICANE. THE LICENSEE WILL EXIT THE UNUSUAL EVENT WHEN THE HURRICANE | | WARNING FOR THEIR AREA IS NO LONGER IN EFFECT. | | | | THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR, STATE OFFICIALS, AND | | LOCAL OFFICIALS IN ACCORDANCE WITH THEIR EMERGENCY PLAN. | | | | NOTE: SEE EVENT #29138 FOR A RELATED EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |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: 07/31/95 | |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. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 29139 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GENERAL ELECTRIC CO. |NOTIFICATION DATE: 07/31/95 | | RXTYPE: URANIUM FUEL FABRICATION |NOTIFICATION TIME: 13:40 [ET]| |COMMENTS: LEU CONVERSION (UF6 TO UO2) |EVENT DATE: 07/30/95 | | LEU FABRICATION |EVENT TIME: 13:45[EDT]| | LWR COMMERICAL FUEL |LAST UPDATE DATE: 07/31/95 | | CITY: WILMINGTON REGION: 2 +-----------------------------+ | COUNTY: NEW HANOVER STATE: NC |PERSON ORGANIZATION| |LICENSE#: SNM-1097 AGREEMENT: Y |THOMAS PEEBLES RDO | | DOCKET: 07001113 |LARRY CAMPER, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: SCOTT MURRAY | | |HQ OPS OFFICER: TIM McGINTY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | |NLTR LICENSEE 24 HR REPORT | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GE WILMINGTON REPORTED A 24 HOUR BULLETIN 91-01 REPORT FOR THE LOSS OF ONE | | CONTROLLED PARAMETER INVOLVING LESS THAN A SAFE MASS. | | | | AT 13:45 ON 7/30/95, THE CONCENTRATION CONTROLLED PARAMETER ON A WASTE | | TREATMENT FACILITY MEMBRANE BIO-REACTION TANK (MBR) WAS DISABLED. THE | | SECOND CONTROLLED PARAMETER ON MASS WAS MAINTAINED AND NO UNSAFE CONDITION | | EXISTED THROUGHOUT THE DURATION OF THE INCIDENT. THE LOST CONTROLLED | | PARAMETER WAS REESTABLISHED AT ABOUT 16:30 THE SAME DAY. THIS INCIDENT IS | | BEING REPORTED PURSUANT TO NRC BULLETIN 91-01 WITHIN 24 HOURS AFTER A LOSS | | OF ONE CONTROLLED PARAMETER INVOLVING LESS THAN A SAFE MASS. AT THE TIME | | OF THE INCIDENT, THE VESSEL CONTAINED LESS THAN 30 GRAMS OF URANIUM IN | | SUSPENSION. THIS IS WELL BELOW THE ESTABLISHED SAFE MASS LIMIT OF 25 kgU. | | | | THE MEMBRANE BIO-REACTION TANK IS PART OF THE BIO-DENITRIFICATION (BDN) | | PILOT PLANT. THE PILOT PLANT IS DESIGNED TO TEST BACTERIAL ABILITY | | TO REMOVE NITRATES AND AMMONIA FROM TREATED SECONDARY NITRATE WASTE. | | THE BIO-REACTION TANK IS A 1200 GALLON VESSEL WITH TWO CRITICALITY SAFETY | | CONTROLLED PARAMETERS: CONCENTRATION AND MASS. | | | | THE CONCENTRATION CONTROLLED PARAMETER RELIES ON ADEQUATE AGITATION OF | | THE TANK CONTENTS. THE PRIMARY AGITATION SYSTEM WAS LOST WHEN AN | | OPERATOR TURNED OFF THE MAIN RECIRCULATION PUMP TO AVOID A PROCESS UPSET. | | THE BACKUP AGITATION SYSTEM WAS LOST DURING SHUTDOWN MAINTENANCE | | ACTIVITIES. THE MASS CONTROLLED PARAMETER REMAINED IN EFFECT AND FULL | | CRITICALITY SAFETY CONTROLS WERE AUTOMATICALLY REESTABLISHED AT 16:30 | | ON 7/30/95, WHEN THE SECONDARY AGITATION SYSTEM WAS REESTABLISHED. | | | | THE SAFETY SIGNIFICANCE OF THE EVENT IS CONSIDERED TO BE LOW, BASED ON THE | | MASS CONTROLLED PARAMETER FOR THE PROCESS BEING MAINTAINED AND LESS THAN | | 30 GRAMS OF URANIUM BEING INVOLVED. MULTIPLE UNLIKELY FAILURES WOULD HAVE | | HAD TO OCCUR REGARDING MASS AND CONCENTRATION CONTROLLED PARAMETERS TO | | EXPERIENCE A CRITICALITY UNDER THESE CONDITIONS. THE ESTIMATED AMOUNT OF | | URANIUM IN THE MBR TANK IS 28 GRAMS OF URANIUM, WITH LESS THAN 2 GRAMS | | BEING U-235. ADDITIONAL CORRECTIVE ACTIONS ARE BEING INVESTIGATED. | | | | THE LICENSEE INFORMED THE STATE, NEW HANOVER COUNTY AND REGION 2. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29140 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CALVERT CLIFFS REGION: 1 |NOTIFICATION DATE: 07/31/95 | |UNIT: [1] [ ] [ ] STATE: MD |NOTIFICATION TIME: 14:36 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 07/31/95 | +------------------------------------------------+EVENT TIME: 14:28[EDT]| |NRC NOTIFIED BY: KENT MILLS |LAST UPDATE DATE: 07/31/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JACK DURR RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 99 POWER OPERATION | 95 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CALVERT CLIFFS UNIT 1 IS CURRENTLY SHUTTING DOWN DUE TO BOTH SERVICE WATER | | HEAT EXCHANGERS BEING OUT OF SERVICE. | | | | UNIT 1 ENTERED TS 3.0.3 DUE TO BOTH THE '11' AND '12' SERVICE WATER HEAT | | EXCHANGERS BEING OUT OF SERVICE. THE SERVICE WATER HEAT EXCHANGERS ARE | | OPERATING, BUT ARE CONSIDERED TO BE "OUT OF SERVICE" DUE TO HIGH | | CIRCULATING WATER INLET TEMPERATURES. THE INJECTION TEMPERATURE HAS | | INCREASED TO THE POINT THAT IS BEYOND THE DESIGN FOR THE CIRC WATER INLET | | TEMPERATURE. THE LICENSEE BELIEVES THAT OUT-FALL FROM THE CIRCULATING | | WATER SYSTEM IS CONTRIBUTING TO THE HIGH INLET CIRC WATER TEMPERATURES | | (BASED ON THE "SWIRLING" EFFECT OF WIND, TIDAL AND SUCTION POINT | | CONDITIONS) FOR UNIT 1, AND IS HOPEFUL THAT POWER REDUCTION MAY PROVIDE | | SOME ADDITIONAL MARGIN (MITIGATE THE INCREASE IN INLET TEMPERATURE). | | | | THE LICENSEE WILL BE MONITORING THE CIRC WATER INJECTION TEMPERATURES. | | UNIT 2 REMAINS OPERATING AT 100%, AND HAS ALSO EXPERIENCED SOME INCREASE | | IN CIRC WATER INJECTION TEMPERATURES (THEY HAVE NOT YET REACHED ANY | | OPERABILITY CONCERNS DUE TO INCREASED CIRC WATER TEMPERATURES FOR UNIT 2). | | UNIT 2 DISCHARGE FROM THE MAIN CONDENSER IS SOUTH OF THE PLANT, AND THUS | | FAR HAS NOT EXPERIENCED THE DEGREE OF "SWIRLING" EFFECT THAT UNIT 1 HAS | | EXPERIENCED ON THE CIRC WATER SUCTION TEMPERATURES. | | | | CURRENTLY, THE CIRC WATER INJECTION TEMPERATURE FOR UNIT 1 IS 87.7øF. | | THE LICENSEE DECLARED THE SERVICE WATER HEAT EXCHANGERS INOPERABLE WHEN | | THE INJECTION TEMPERATURE PASSED 87.1øF (LIMITATION CONTAINED IN THE | | OPERATING INSTRUCTIONS REGARDING THE CONTAINMENTS ABILITY TO MITIGATE | | THE CONSEQUENCES OF A DESIGN BASIS ACCIDENT). THE CIRC WATER INJECTION | | TEMPERATURE HAS INCREASED ABOUT 1 - 2øF/HR FOR THE PAST 4 HOURS. THE | | '11' HEAT EXCHANGER SURPASSED THE LIMIT (PLACING THE UNIT IN A 72 HOUR | | ACTION STATEMENT) ABOUT 20 MINUTES BEFORE THE '12' HEAT EXCHANGER. | | WITH BOTH THE '11' AND '12' SERVICE WATER HEAT EXCHANGERS INOPERABLE, | | THE LICENSEE ENTERED TS 3.0.3 AT 1428 EDT. | | | | UNIT 1 WOULD HAVE TO BE PLACED IN HOT SHUTDOWN BY 2128 EDT IF BOTH SERVICE | | WATER HEAT EXCHANGERS REMAIN INOPERABLE, AND COLD SHUTDOWN WITHIN THE | | FOLLOWING 24 HOURS. UNIT 1 IS CURRENTLY BEING SHUT DOWN AT THE RATE OF | | ABOUT 25%/HOUR. BOTH UNITS HAVE ALL OF THE ECCSs AND EDGs FULLY OPERABLE | | AND AVAILABLE. | | | | THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR AND THE COUNTY, AND | | WILL UPDATE THE OPERATIONS CENTER UPON COMPLETING OR TERMINATING THE | | SHUTDOWN OF UNIT 1. | | | | *** UPDATE @ 1815 ON 7/31/95, FROM: MILLS BY: McGINTY *** | | | | THE LICENSEE EXITED TS 3.0.3 AT 1755 EDT AND REENTERED THE 72 HOUR LCO. | | SERVICE WATER HEAT EXCHANGER '12' HAS BEEN DECLARED OPERABLE, BASED ON A | | REDUCTION IN THE CIRC WATER INJECTION TEMPERATURE. THE POWER REDUCTION | | HAS BEEN TERMINATED AT ABOUT 50% POWER. THE LICENSEE WILL BE FURTHER | | EVALUATING THE CIRC WATER TEMPERATURES WITH RESPECT TO POSSIBLE | | OPERABILITY CONCERNS. THE LICENSEE ALSO EXPECTS TO BE ABLE TO DECLARE | | THE '11' SERVICE WATER HEAT EXCHANGER TO BE OPERABLE LATER THIS EVENING. | | | | THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR. | | | | HOO NOTIFIED THE R1DO (DURR). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29141 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FERMI REGION: 3 |NOTIFICATION DATE: 08/01/95 | |UNIT: [2] [ ] [ ] STATE: MI |NOTIFICATION TIME: 04:42 [ET]| |RX TYPE: [2] GE-4 |EVENT DATE: 08/01/95 | +------------------------------------------------+EVENT TIME: 00:50[EDT]| |NRC NOTIFIED BY: DALE HOSKINS |LAST UPDATE DATE: 08/01/95 | |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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 95 POWER OPERATION | 95 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - 0.5 GPM LEAK FROM Rx RECIRC CONDUCTIVITY SAMPLING SYSTEM FLOW INDICATOR - | | | | FERMI-2 EXPERIENCED A 0.5 GPM LEAK FROM A FAILED FLOW INDICATOR IN THE | | REACTOR RECIRCULATION CONDUCTIVITY SAMPLING SYSTEM. | | | | CONTROL ROOM OPERATORS STOPPED THE LEAK BY MANUALLY CLOSING THE REACTOR | | RECIRCULATION WATER SAMPLE LINE PRIMARY CONTAINMENT ISOLATION VALVES | | #B31F-019 AND #B31F-020 TO ISOLATE THE SYSTEM. CONTROL ROOM OPERATORS | | CLOSED THESE VALVES BECAUSE THE LOCAL MANUAL ISOLATION VALVE WAS TOO CLOSE | | TO THE LEAKING INSTRUMENT. | | | | THE ACTUATION SIGNALS WHICH CAUSE THESE TWO PCIS GROUP 2 ISOLATION VALVES | | TO AUTOMATICALLY CLOSE ARE REACTOR PRESSURE VESSEL WATER LEVEL 2, | | HIGH DRYWELL PRESSURE, AND HIGH MAIN STEAM LINE RADIATION LEVEL. | | THERE WERE NO CHANGES IN THESE THREE PARAMETERS WHICH COULD LEAD TO | | AN AUTOMATIC PCIS GROUP 2 ISOLATION. | | | | LICENSEE IS REPAIRING THE FAILED FLOW INDICATOR. | | | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+