U.S. Nuclear Regulatory Commission Operations Center Event Reports For 10/14/97 - 10/15/97 ** EVENT NUMBERS ** 33063 33078 33079 33080 33081 33082 33083 33084 33085 33086 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33063 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 10/10/97 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 13:13 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 10/10/97 | +------------------------------------------------+EVENT TIME: 09:00[CDT]| |NRC NOTIFIED BY: DAVID GRONEK |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: FANGIE JONES +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRENT CLAYTON 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 98 POWER OPERATION | 98 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTROL ROD 46-55 INSERTED TO FULL IN FROM FULL WITHDRAWN. | | | | "WHILE ADJUSTING A LIMIT SWITCH ON THE SCRAM INLET VALVE FOR CONTROL ROD | | 46-55, THE ROD INSERTED TO FULL IN (00) FROM FULLY WITHDRAWN (48) POSITION. | | THIS ROD IS A PERIPHERAL ROD. NO CORE THERMAL LIMITS WERE EXCEEDED OR | | CHALLENGED. THE CONTROL ROD HAS BEEN ELECTRICALLY AND HYDRAULICALLY | | ISOLATED AND DECLARED INOPERABLE PENDING COMPLETION OF A ROOT CAUSE | | INVESTIGATION." | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | ***UPDATE ON 10/14/97 @ 1816 BY GRANT TO GOULD*** THE LICENSEE IS | | RETRACTING THIS EVENT. FURTHER INVESTIGATION OF THIS EVENT REVEALED THE | | ROD-DRIFT WAS DUE TO IMPROPER TORQUE SETTING FOR THE COUPLING SCREW. THIS | | ALLOWED THE SCRAM INLET VALVE DISC TO BE LIFTED FROM ITS SEAT BY HCU | | ACCUMULATOR PRESSURE; THEREBY CAUSING THE ROD TO DRIFT INTO THE CORE. IN | | THIS EVENT RPS CHANNELS WERE NOT ACTUATED, THEREFORE THE EVENT WAS NOT | | REPORTABLE. | | | | THE RESIDENT INSPECTOR WAS INFORMED. THE RDO(MCCORMICKBARGER) WAS | | NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33078 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VOGTLE REGION: 2 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 04:43 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 03:18[EDT]| |NRC NOTIFIED BY: LEE MANSFIELD |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MARK LESSER 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 N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT 1 EXPERIENCED A CONTAINMENT VENTILATION ISOLATION DURING REMOVAL OF A | | CONTROL ROD DRIVE SHAFT. | | | | "WHILE REMOVING A CONTROL ROD DRIVE SHAFT FROM THE REACTOR CAVITY, A | | CONTAINMENT VENTILATION ISOLATION SIGNAL WAS RECEIVED. RADIATION MONITOR | | 1RE-002 HIGH ALARM WAS SET FOR 15 mR/HR, AND THE MAXIMUM IT RECORDED WAS | | APPROXIMATELY 25mR/HR. ALL COMPONENTS ACTUATED AS REQUIRED. | | | | "INVESTIGATION REVEALED THAT THE INDIVIDUAL DESIGNATED DURING THE PRE-JOB | | BRIEFING TO NOTIFY THE CONTROL ROOM FAILED TO DO SO PRIOR TO THE BEGINNING | | OF THE EVOLUTION. | | | | "AN EVENT REVIEW IS UNDERWAY." | | | | CONTROL ROOM OPERATORS NORMALLY BLOCK THE ISOLATION SIGNAL AFTER | | NOTIFICATION PRIOR TO MOVEMENT OF THESE COMPONENTS SO AS TO PREVENT THE ESF | | ACTUATION. THE ISOLATION SIGNAL AND ASSOCIATED COMPONENTS HAVE BEEN RESET. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 33079 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: UNKNOWN |NOTIFICATION DATE: 10/14/97 | | CITY: SCHOHARIE REGION: 1 |NOTIFICATION TIME: 07:05 [ET]| | COUNTY: SCHOHARIE STATE: NY |EVENT DATE: 10/14/97 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 06:30[EDT]| | DOCKET: |LAST UPDATE DATE: 10/14/97 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JOHN WHITE RDO | | |DON COOL EO | +------------------------------------------------+ | |NRC NOTIFIED BY: STEPHEN SHAKO | | |HQ OPS OFFICER: STEVE SANDIN | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A PRIVATE CITIZEN FOUND AN EMPTY 5 GALLON METAL CONTAINER WITH RADIOACTIVE | | MARKINGS ALONGSIDE BEEBE ROAD IN ALBANY COUNTY, NY. THE CONTAINER IS | | LABELLED NUCLEAR DIAGNOSTIC, NDL LABS, PEEKSKILL, NY 10566. | | | | SEE HOO LOG FOR NAME AND ADDRESS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33080 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 09:19 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 01:50[CDT]| |NRC NOTIFIED BY: BART CROW |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |TOM STETKA RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | SUSPECTED HYDROGEN BURN IN AUGMENTED OFFGAS (AOG) SYSTEM PIPING. | | | | "AT 0120CDT ON 10/14/97 COOPER REMOVED THE AOG SYSTEM FROM SERVICE DUE TO | | PROBLEMS WITH STEAM JET AIR EJECTOR (SJAE) FLOW AND CONDENSER VACUUM. | | SHORTLY AFTER BYPASSING AOG, A STATION OPERATOR IN THE OFF GAS BUILDING | | NOTED AN ACID SMELL. THE OFF GAS PIPING WAS FOUND WARMER THAN EXPECTED AND | | CAUSING THE PAINT ON THE PIPES TO OVERHEAT. AFTER THE AOG SYSTEM WAS | | SECURED AND BYPASSED, THE SJAE FLOW INCREASED TO AN ABNORMAL VALUE AND | | CONDENSER VACUUM BEGAN TO RECOVER. WITHIN A FEW MINUTES THE OFF GAS PIPING | | COOLED BACK TO AMBIENT TEMPERATURE. | | | | "THIS IS BEING SUBMITTED AS AN INFORMATIONAL REPORT. THE FACILITY IS | | INVESTIGATING THIS OCCURRENCE." | | | | OPERATORS RECEIVED AN AOG TROUBLE ALARM AT 0053CDT. AOG HAD BEEN IN | | CONTINUOUS SERVICE FOR APPROXIMATELY SIX WEEKS. THE LICENSEE PERFORMED A | | WALKDOWN OF AOG AFTER SECURING IT AND FOUND NO ABNORMAL INDICATIONS. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 33081 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: FOXBORO COMPANY |NOTIFICATION DATE: 10/14/97 | | CITY: FOXBORO REGION: 1 |NOTIFICATION TIME: 11:36 [ET]| | COUNTY: STATE: MA |EVENT DATE: 10/14/97 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[EDT]| | DOCKET: |LAST UPDATE DATE: 10/14/97 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JOHN WHITE RDO | | | | +------------------------------------------------+VERN HODGE NRR | |NRC NOTIFIED BY: TRUMAN KING | | |HQ OPS OFFICER: STEVE SANDIN | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PART 21 NOTIFICATION | | | | FOXBORO COMPANY LOCATED IN FOXBORO, MA. SUPPLIED A TOTAL OF SIX NUCLEAR | | QUALIFIED PRESSURE TRANSMITTERS CONTAINING THE INCORRECT ELECTRONIC | | MODULES. THE ELECTRONIC MODULES, ALTHOUGH FROM THE SAME FAMILY, WERE NOT | | SEISMICALLY QUALIFIED AS SPECIFIED ON THE PURCHASE ORDERS. THESE SIX UNITS | | WERE SUPPLIED TO: | | | | QTY: 5 | | MODEL # N-823DP-D3SH1 | | SHIPPED: 7/26/96 | | INSTALLED AT VERMONT YANKEE | | | | QTY: 1 | | MODEL # N-823DP-D3SH2-F | | SHIPPED: 3/11/97 | | INSTALLED AT INDIAN POINT 2 | | | | ALSO, THE PURCHASE ORDER FROM INDIAN POINT 2 SPECIFIED A CUMULATIVE | | EXPOSURE OF 6,000 RADS FOR SERVICE LIFE CONSIDERATION. FOXBORO DETERMINED | | THAT, THROUGH AN OVERSIGHT ON THEIR PART, THIS REQUIREMENT HAD NOT BEEN | | TAKEN INTO CONSIDERATION. | | | | FOXBORO HAS BEEN IN CONTACT WITH BOTH UTILITIES. AT THIS TIME, NEITHER | | UTILITY HAS INDICATED AN OPERABILITY CONCERN FOR THESE INSTALLED PRESSURE | | TRANSMITTERS. FOXBORO WILL FORMALIZE AND SUBMIT A WRITTEN REPORT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33082 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GRAND GULF REGION: 4 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [ ] [ ] STATE: MS |NOTIFICATION TIME: 15:19 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 13:58[CDT]| |NRC NOTIFIED BY: SPARKS |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |TOM STETKA 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DISCOVERED THAT THEIR EMERGENCY OPERATION FACILITY (EOF) IS | | OUT OF SERVICE. | | | | THE EOF IS NOT FUNCTIONAL DUE TO FAILURE OF A VENTILATION DAMPER WHICH | | ISOLATES AIR TO THE FACILITY. THE BACKUP FACILITY IS AVAILABLE. THE MAIN | | FACILITY WILL BE OUT OF SERVICE FOR APPROXIMATELY 24 HRS. REPAIRS TO THE | | DAMPER ARE CURRENTLY BEING INITIATED. THE RESIDENT INSPECTOR WILL BE | | INFORMED ALONG WITH STATE AND LOCAL AGENCIES. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33083 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 15:49 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 14:00[CDT]| |NRC NOTIFIED BY: POWERS |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JIM MCCORMICKBARGER 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 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT DISCOVERED THAT SILT LEVELS IN THE SCREENHOUSE ARE GREATER THAN | | THE ACCEPTANCE CRITERIA FOR PUMP OPERABILITY. | | | | "DURING AN INTEGRATED SELF INSPECTION ISA REVIEW OF THE GENERIC LETTER | | 89-13 PROGRAM A CONCERN WAS RAISED ABOUT THE SILT LEVELS IN THE CLINTON | | POWER STATION SCREENHOUSE. A SUBSEQUENT SILT LEVEL INSPECTION REVEALED | | WITHIN A FIVE FOOT AREA AROUND THE DIVISION II SHUTDOWN SERVICE WATER | | PUMP(SX) SILT LEVELS RANGED FROM FOUR TO FOURTEEN INCHES, WHILE THE | | DIVISION III SX PUMP BAY CONTAINED A UNIFORM SILT LEVEL OF EIGHTEEN INCHES. | | THE DIVISION I SX PUMP AREA WAS NOT INSPECTED BECAUSE OF A DIVER SAFETY | | CONCERN BASED ON THE DIVISION I PUMPS'S AVAILABILITY TO AUTOSTART. A | | DESIGN CALCULATION SHOWS THAT THE SILT LEVEL ACCEPTANCE CRITERIA FOR THE | | PUMP OPERABILITY IS LESS THAN OR EQUAL OF FOUR INCHES." | | | | THE RESIDENT INSPECTOR WAS NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33084 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ZION REGION: 3 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 18:57 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 16:53[CDT]| |NRC NOTIFIED BY: LINDEMANN |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JIM MCCORMICKBARGER RDO | |AINB 50.72(b)(2)(iii)(B) POT RHR 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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED THAT RHR AND COMPONENT COOLING WERE DECLARED | | INOPERABLE ON BOTH UNITS. | | | | WITH THE UNITS BEING DEFUELED(UNIT 1) AND COLD SHUTDOWN(UNIT 2), TECH SPECS | | REQUIRE 2 OPERABLE COMPONENT COOLING WATER PUMPS. WITH THREE OPERABLE | | COMPONENT COOLING WATER PUMPS, THE "0B" CCW PUMP WAS DECLARED INOPERABLE | | DUE TO AN OIL LEAK. SUBSEQUENTLY, THE "1B" DIESEL GENERATOR WAS ATTEMPTED | | TO BE RUN FOR A PERFORMANCE TEST AND FAILED TO START. THIS REMOVED THE | | EMERGENCY POWER SUPPLY FROM ONE OF THE TWO CCW PUMPS REMAINING OPERABLE. | | NOW WITH ONLY ONE REMAINING OPERABLE CCW PUMP, THE TECH SPEC REQUIREMENT | | FOR TWO OPERABLE PUMPS IS NO LONGER MET. THEREFORE, THE RHR SYSTEM AS WELL | | THE CCW SYSTEM IS NOW INOPERABLE. ALTHOUGH NOT OPERABLE, FOUR CCW PUMPS | | REMAIN AVAILABLE FOR SERVICE. THE RHR SYSTEM CONTINUES TO FUNCTION | | REMOVING DECAY HEAT FROM UNIT 2. THEY ARE NOT IN A LCO ACTION STATEMENT | | WHILE IN THEIR CURRENT MODES. THEY ARE MAKING ALL ATTEMPTS TO RESTORE CCW | | SYSTEM OPERABILITY. THE RESIDENT INSPECTOR WAS INFORMED. | | | | * * * UPDATE 0410 10/15/97 FROM CARNAHAN TAKEN BY STRANSKY * * * | | | | THE '0B' CCW PUMP WAS RETURNED TO SERVICE AT 0253, MAKING THE CCW AND UNIT | | 2 RHR SYSTEMS OPERABLE. THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE | | LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33085 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 10/14/97 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 20:37 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 20:04[EDT]| |NRC NOTIFIED BY: SANTINI |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 100 POWER OPERATION | 93 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A MANAGEMENT DISCRETION SHUTDOWN HAS BEEN DIRECTED TO TAKE THE PLANT DOWN | | TO 340øF. | | | | THIS DECISION WAS MADE TO FORMULATE AN ACTION PLAN ASSOCIATED WITH TESTING | | AND EVALUATION OF THE 480V DB-50 CIRCUIT BREAKER PERFORMANCE. THIS MORNING | | THEY WERE DOING A QUARTERLY SURVEILLANCE TEST OF THE "21" SI PUMP, BUT WHEN | | THE PUMP WAS DEMANDED TO START, IT DID NOT AND THEY RECEIVED AN AMBER | | LIGHT. THE PUMP BREAKER CLOSED AND THEN TRIPPED, BUT THEY ARE NOT SURE WHAT | | CAUSED THE TRIP AT THIS TIME. THE BREAKER WAS REPLACED WITH A SPARE AND | | THE PUMP WAS SUCCESSFULLY TESTED. GIVEN THE PROBLEMS THAT THEY HAD WITH | | THIS BREAKER, MANAGEMENT HAS DECIDED TO SHUTDOWN AND EXAMINE THEIR | | ELECTRICAL SYSTEM. THE SHUTDOWN WAS STARTED AT 2004 AND THEY SHOULD HAVE | | THE REACTOR SUBCRITICAL BY 0700 @ 10/15/97. THEY WILL TAKE THE PLANT BELOW | | 350øF WHICH, ACCORDING TO THEIR TECH SPECS IS THE THRESHOLD WHERE THEY ARE | | NO LONGER REQUIRED TO HAVE SAFEGUARDS EQUIPMENT OPERABLE. | | | | THE RESIDENT INSPECTOR WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33086 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SURRY REGION: 2 |NOTIFICATION DATE: 10/14/97 | |UNIT: [1] [ ] [ ] STATE: VA |NOTIFICATION TIME: 20:41 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 10/14/97 | +------------------------------------------------+EVENT TIME: 17:26[EDT]| |NRC NOTIFIED BY: HARTKA |LAST UPDATE DATE: 10/14/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS PEEBLES 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 91 POWER OPERATION | 91 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | INTAKE CANAL LEVEL PROBES FAILED THEIR TIME RESPONSE TEST | | | | WHILE UNIT 2 IS SHUTDOWN FOR A SCHEDULED REFUELING OUTAGE, IT WAS | | IDENTIFIED THAT BOTH OF THE UNIT 2 INTAKE CANAL LEVEL PROBES FAILED THEIR | | TIME RESPONSE TESTING DUE TO HYDROID GROWTH ON THE PROBES. THIS CONDITION | | COULD HAVE AFFECTED THE ABILITY TO MITIGATE THE CONSEQUENCES OF AN ACCIDENT | | SINCE THESE PROBES FUNCTION TO ISOLATE NON-ESSENTIAL SERVICE WATER AND | | CIRCULATING WATER FLOWPATHS ON A LOW INTAKE CANAL LEVEL(3 OUT OF 4 LOGIC). | | THESE CHANNELS ALSO PROVIDE INPUT FOR UNIT 1 PROTECTION FUNCTIONS AND UNIT | | 1 IS CURRENTLY AT 91% POWER. ONE OF THE UNIT 1 CANAL LEVEL PROBES HAS BEEN | | TESTED TO ADDRESS COMMON MODE FAILURE CONCERNS. THE CHANNEL INITIALLY | | FAILED ITS TIME RESPONSE THAN TESTED SATISFACTORILY AFTER CLEANING. THE | | REMAINING UNIT 1 CHANNEL IS IN TRIP AS REQUIRED BY TECH SPECS UNTIL FURTHER | | EVALUATION IS PERFORMED. THE UNIT 2 LEVEL PROBES HAVE BEEN CLEANED AND | | TESTED SATISFACTORILY. UNIT 1 REMAINED STABLE AT 91% POWER. THE EVENT | | RESULTED IN NO RADIOLOGICAL RELEASES OR PERSONNEL INJURIES. | | | | THE RESIDENT INSPECTOR WILL BE INFORMED. | +------------------------------------------------------------------------------+