U.S. Nuclear Regulatory Commission Operations Center Event Reports For 11/07/95 - 11/08/95 ** EVENT NUMBERS ** 29564 29566 29567 29568 29569 29570 29571 29572 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29564 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CALVERT CLIFFS REGION: 1 |NOTIFICATION DATE: 11/06/95 | |UNIT: [1] [2] [ ] STATE: MD |NOTIFICATION TIME: 14:25 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 11/06/95 | +------------------------------------------------+EVENT TIME: 13:40[EST]| |NRC NOTIFIED BY: GECKLE |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN KINNEMAN RDO | |AENS 50.72(b)(1)(v) ENS INOPERABLE | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | ST MARY'S COUNTY OFFICIALS NOTIFIED THE LICENSEE THAT 17 OF 17 CALVERT | | CLIFFS' OFFSITE EMERGENCY SIRENS (#11 - 14 AND #39 - 51) FAILED THE ANNUAL | | FULL CYCLE TEST. | | | | COUNTY OFFICIALS ARE REPAIRING THE SIRENS AND WILL RETEST THEM. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1458 ON 11/07/95 BY GECKLE ENTERED BY HOO JOLLIFFE * * * | | | | AT 1300 ON 11/07/95, ST MARY'S COUNTY OFFICIALS NOTIFIED LICENSEE THAT | | 16 OF 17 CALVERT CLIFF'S OFFSITE EMERGENCY SIRENS OR BACK IN SERVICE AND | | THEY ARE REPAIRING THE SEVENTEENTH SIREN. | | | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | HOO NOTIFIED R1DO JOHN KINNEMAN. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29566 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NORTH ANNA REGION: 2 |NOTIFICATION DATE: 11/07/95 | |UNIT: [1] [2] [ ] STATE: VA |NOTIFICATION TIME: 09:48 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 11/07/95 | +------------------------------------------------+EVENT TIME: 08:00[EST]| |NRC NOTIFIED BY: GEORGE MARSHALL |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN POTTER 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION OF A SPILLWAY DIESEL GENERATOR START FAILURE | | | | THE LICENSEE HAS A SPILLWAY DIESEL GENERATOR THAT SUPPLIES EMERGENCY POWER | | TO THE RADIAL GATES AND LIGHTING AT THE DAM ON AN IMPOUNDED LAKE WHICH IS | | USED AS THE UNIT'S HEAT SINK. DURING A 31-DAY SURVEILLANCE TEST OF THIS | | SPILLWAY DIESEL GENERATOR, IT FAILED TO START AT 04:00 ON NOVEMBER 7, 1995. | | IN ACCORDANCE WITH THE LICENSEE'S EMERGENCY RESPONSE PLAN, THE LICENSEE | | NOTIFIED THE FEDERAL EMERGENCY RESPONSE CENTER OF THIS START FAILURE AT | | 08:00. THERE ARE NO TECHNICAL SPECIFICATIONS ASSOCIATED WITH THIS FAILURE. | | REPAIRS ARE CURRENTLY UNDERWAY. | | | | THE LICENSEE ALSO NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29567 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SURRY REGION: 2 |NOTIFICATION DATE: 11/07/95 | |UNIT: [ ] [2] [ ] STATE: VA |NOTIFICATION TIME: 12:40 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 11/07/95 | +------------------------------------------------+EVENT TIME: 09:56[EST]| |NRC NOTIFIED BY: DON HART |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN POTTER 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 | N Y 100 POWER OPERATION | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - AUTO REACTOR TRIP FROM 100% POWER DUE TO LOSS OF 1 REACTOR COOLANT PUMP - | | | | AT 0956, UNIT 2 AUTOMATICALLY TRIPPED FROM 100% POWER DUE TO A LOSS OF | | COOLANT FLOW IN 1 OF 3 REACTOR COOLANT LOOPS AND REACTOR POWER GREATER THAN | | PERMISSIVE #P-8 (POWER GREATER THAN 35% WITH 3 REACTOR COOLANT PUMPS | | RUNNING). THE LOSS OF FLOW CONDITION WAS CAUSED BY THE LOSS OF THE | | 'C' REACTOR COOLANT PUMP DUE TO A TIMED AND INSTANTANEOUS OVERCURRENT | | AND GROUND CONDITION. NO TESTING OR MAINTENANCE ACTIVITIES WERE BEING | | CONDUCTED AT THE TIME OF THE REACTOR TRIP. LICENSEE IS INVESTIGATING | | THE CAUSE OF THE LOSS OF THE REACTOR COOLANT PUMP. | | | | ALL CONTROL RODS INSERTED COMPLETELY INTO THE CORE. HOWEVER, THE | | INDIVIDUAL ROD POSITION INDICATION FOR CONTROL ROD #M-10 INDICATED THAT | | CONTROL ROD #M-10 SLOWLY DRIFTED COMPLETELY INTO THE CORE FOLLOWING THE | | REACTOR TRIP. THIS IS A NORMAL CONDITION FOR CONTROL ROD #M-10 FOLLOWING | | A REACTOR TRIP ON UNIT 2. | | | | AUXILIARY FEEDWATER AUTOMATICALLY INITIATED AS DESIGNED ON LOW LOW STEAM | | GENERATOR LEVEL FOLLOWING THE REACTOR TRIP. NO PRIMARY SAFETY OR POWER | | OPERATED RELIEF VALVES WERE ACTIVATED DURING THE EVENT. HOWEVER, THE | | 'B' STEAM GENERATOR PORV OPENED TO ITS INTERMEDIATE POSITION FOR | | APPROXIMATELY 1 MINUTE AND THEN COMPLETELY RECLOSED. ALL ELECTRICAL | | BUSSES TRANSFERRED PROPERLY FOLLOWING THE REACTOR TRIP AND ALL EDGs ARE | | OPERABLE. DECAY HEAT IS BEING DUMPED TO THE MAIN CONDENSER. | | | | UNIT 2 IS STABLE IN MODE 4 (HOT SHUTDOWN). | | | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29568 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: METOREX, INC, LANGHORNE, PA |NOTIFICATION DATE: 11/07/95 | | CITY: LANGHORNE REGION: 1 |NOTIFICATION TIME: 13:54 [ET]| | COUNTY: STATE: PA |EVENT DATE: 11/07/95 | |LICENSE#: 37-28461-01 AGREEMENT: N |EVENT TIME: 11:00[EST]| | DOCKET: |LAST UPDATE DATE: 11/07/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JOHN KINNEMAN RDO | | |DONALD COOL, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: STAN PIOREX, RSO | | |HQ OPS OFFICER: DICK JOLLIFFE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -2 LEAKING SPENT SEALED SOURCES SHIPPED TO THEIR MANUFACTURERS FOR DISPOSAL | | | | METOREX, INC, MANUFACTURER AND DISTRIBUTOR OF PORTABLE X-RAY ANALYZERS, | | (POSSESSION LICENSE #37-28461-01, DISTRIBUTION LICENSE #37-28461-02G) | | IS SHIPPING 2 LEAKING SPENT SEALED SOURCES INSIDE LEAD PIGS TO THEIR | | MANUFACTURERS FOR DISPOSAL: | | 1 - 1 TO 2 MILLICURIES OF CADMIUM-109 MADE BY ISOTOPE PRODUCTS, | | MODEL #XFB-3, SERIAL #U-049 | | 2 - 5 MILLICURIES OF IRON-55 MADE BY AMERSHAM, | | MODEL #IEC.A1, SERIAL #6155LG. | | | | WIPE TESTS OF THE LEAKING SOURCES INDICATED GREATER THAN 0.005 MICROCURIES. | | THE LEAD PIGS CONTAINING THE LEAKING SOURCES WILL BE SHIPPED INSIDE A-1 | | SHIPPING CONTAINERS TO THEIR MANUFACTURERS FOR DISPOSAL. | | | | NO PERSONNEL WERE CONTAMINATED. | | | | LICENSEE WILL SUBMIT A WRITTEN REPORT TO THE NRC ON THIS EVENT WITHIN | | 30 DAYS. | | | | SEE HOO LOG FOR TELEPHONE NUMBERS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29569 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BIG ROCK POINT REGION: 3 |NOTIFICATION DATE: 11/07/95 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 15:23 [ET]| |RX TYPE: [1] GE-1 |EVENT DATE: 11/07/95 | +------------------------------------------------+EVENT TIME: 11:35[EST]| |NRC NOTIFIED BY: MIKE BOURASSA |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN JACOBSON RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION |ED GOODWIN, NRR EO | | |RICH BARRETT AEOD | | |HENRY BAILEY AEOD | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 72 POWER OPERATION | 72 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - 2 OF 2 DIESEL GENERATORS INOPERABLE WITH THE PLANT AT 72% POWER - | | | | BIG ROCK POINT HAS A TOTAL OF TWO DIESEL GENERATORS; A TECH SPEC REQUIRED | | EMERGENCY DIESEL GENERATOR AND A STANDBY DIESEL GENERATOR. THE STANDBY | | DIESEL GENERATOR IS REQUIRED TO BE AVAILABLE FOR OPERATION WITHIN 24 HOURS | | FOLLOWING A LOSS OF COOLANT ACCIDENT IN ACCORDANCE WITH BIG ROCK POINT'S | | FINAL HAZARDS SUMMARY REPORT (FHSR) (aka FSAR), APPENDIX K EXCEPTION. | | THIS STANDBY DIESEL GENERATOR IS NOT ADDRESSED IN BIG ROCK POINT TECH | | SPECS; THEREFORE THERE ARE NO TECH SPEC OPERABILITY REQUIREMENTS FOR | | THE STANDBY DIESEL GENERATOR. | | | | ON 11/02/95, LICENSEE PERFORMED A TECH SPEC SURVEILLANCE TEST OF THE | | TECH SPEC EDG AND RECORDED THE TEST RESULTS DATA. | | | | AT 0530 ON 11/06/95, LICENSEE DECLARED THE STANDBY D/G INOPERABLE AFTER IT | | FAILED ITS WEEKLY SURVEILLANCE TEST (FAILED TO START WITHIN THE REQUIRED | | 30 SECONDS) PROBABLY DUE TO BATTERY FAILURE. HOWEVER, THE STANDBY D/G IS | | STILL FUNCTIONAL. | | | | AT 1135 ON 11/07/95, LICENSEE DECLARED THE TECH SPEC EDG INOPERABLE DUE TO | | DEGRADED COOLING WATER FLOW AFTER ANALYZING THE TEST RESULTS DATA TAKEN ON | | 11/02/95. TECH SPEC LCO A/S 11.3.5.3.A.2 REQUIRES THE LICENSEE TO RESTORE | | THE TECH SPEC EDG TO OPERABLE STATUS WITHIN 3 DAYS OR TO PLACE THE PLANT | | IN COLD SHUTDOWN CONDITION WITHIN THE FOLLOWING 36 HOURS. | | | | AT 1235 ON 11/07/95, LICENSEE STARTED THE STANDBY D/G AND MAY RUN IT UNTIL | | THE TECH SPEC EDG IS DECLARED OPERABLE. LICENSEE IS DISCUSSING THIS OPTION | | WITH CATERPILLAR, THE STANDBY D/G SUPPLIER. LICENSEE IS ALSO DISCUSSING | | WITH CATERPILLAR THE POSSIBILITY OF BRINGING ANOTHER D/G TO THE PLANT | | WITHIN 24 HOURS, IF NEEDED. | | | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29570 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: DEPARTMENT OF ARMY, ROCK ISLAND, IL |NOTIFICATION DATE: 11/07/95 | | CITY: ROCK ISLAND REGION: 3 |NOTIFICATION TIME: 17:19 [ET]| | COUNTY: STATE: IL |EVENT DATE: 11/07/95 | |LICENSE#: 12-00722-13 AGREEMENT: Y |EVENT TIME: 12:00[CST]| | DOCKET: |LAST UPDATE DATE: 11/07/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JOHN JACOBSON RDO | | |DONALD COOL, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: BETTY PETERSON | | |HQ OPS OFFICER: DICK JOLLIFFE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |BAB2 20.2201(a)(1)(ii) LOST/STOLEN LNM>10X | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -CHEMICAL AGENT DETECTOR AND BETA-GAMMA DETECTOR MAY BE DISCARDED AS TRASH- | | | | BETTY PETERSON, DEPARTMENT OF ARMY, ARMAMENT AND CHEMICAL ACQUISITION | | AND LOGISTICS ACTIVITY, ROCK ISLAND, IL, REPORTED THAT A PLASTIC BAG | | CONTAINING A M8A1 CHEMICAL AGENT DETECTOR (4"X7"X12") WHICH CONTAINS | | A 250 MICROCURIES SPECIAL FORM AM-241 SOURCE AND AN ANVDR-2 BETA-GAMMA | | DETECTOR WHICH CONTAINS A 0.001 MICROCURIE SEALED TH-232 SOURCE IS MISSING. | | | | THE CONTENTS OF THE PLASTIC BAG WAS LAST SEEN ON 9/24/95 IN FORT IRWIN, CA, | | AND BELONGS TO THE SECOND BATTALION, SEVENTEENTH FIELD ARTILLERY GROUP, | | FORT SILL, OK (CONTACT: CAPT HOLDREN). | | | | THESE DETECTORS WERE NOT DAMAGED AND NO PERSONNEL WERE CONTAMINATED. | | | | THE PLASTIC BAG AND ITS CONTENTS MAY HAVE BEEN DISCARDED AS TRASH FROM | | FORT IRWIN, CA. | | | | SEE HOO LOG FOR CONTACT TELEPHONE NUMBERS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29571 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BYRON REGION: 3 |NOTIFICATION DATE: 11/07/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 17:47 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 11/07/95 | +------------------------------------------------+EVENT TIME: 15:45[CST]| |NRC NOTIFIED BY: DENNIS MORRIS |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN JACOBSON 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 +------------------------------------------------------------------------------+ | - > 1% OF INSPECTED TUBES ON 4 OF 4 STEAM GENERATORS ARE DEFECTIVE - | | | | WHILE INSPECTING THE FULL LENGTH OF 100% OF THE TUBES OF ALL 4 STEAM | | GENERATORS ON UNIT 1, LICENSEE DETERMINED THAT MORE THAN 1% OF THE | | INSPECTED TUBES WERE FOUND TO BE DEFECTIVE IN THAT THEY CONTAINED | | IMPERFECTIONS WHICH EXCEEDED THE PLUGGING OR REPAIR LIMIT. | | | | THE ACCEPTANCE CRITERIA SPECIFIED IN UNIT 1 TECH SPECS 4.4.5.4.a.6 AND | | 4.4.5.4.a.11 REQUIRE A TUBE TO BE PLUGGED OR REPAIRED IF AN IMPERFECTION | | IS GREATER THAN OR EQUAL TO 40% THROUGH WALL OR EXCEEDS 1 VOLT BOBBIN COIL | | VOLTAGE. LICENSEE HAS SUBMITTED A 3.0 VOLT INTERIM PLUGGING CRITERIA | | LICENSE AMENDMENT REQUEST FOR NRC APPROVAL. THIS AMENDMENT REQUEST HAS | | NOT BEEN APPROVED BY THE NRC AT THIS TIME. | | | | IN ACCORDANCE WITH BYRON TECH SPEC 4.4.5.2, FOR EACH STEAM GENERATOR, | | THESE INSPECTION RESULTS CORRESPOND TO A C-3 CLASSIFICATION, REQUIRING | | NOTIFICATION TO THE NRC. | | | | LICENSEE WILL COMPLETE THE INSPECTION OF ALL STEAM GENERATORS, PROVIDE AN | | UPDATE OF SPECIFIC PERCENTAGES TO THE NRC WHEN THE INSPECTION IS COMPLETE, | | AND PLUG OR REPAIR DEFECTIVE TUBES. | | | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29572 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 11/07/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 18:21 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 11/03/95 | +------------------------------------------------+EVENT TIME: 06:55[CST]| |NRC NOTIFIED BY: JIM SCHOTTEL |LAST UPDATE DATE: 11/07/95 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN JACOBSON 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - PLANT OPERATED AT 2 MWTh ABOVE LICENSE LIMIT FOR 7 HOURS ON 11/03/95 - | | | | ON 10/30/95, LICENSEE REMOVED THE REACTOR WATER CLEANUP (RWCU) SYSTEM | | FROM SERVICE TO PERFORM PLANNED MAINTENANCE ACTIVITIES ON THE SYSTEM. | | IN ORDER TO ALLOW COMPUTER THERMAL CALCULATIONS TO CONTINUE, AN ARTIFICIAL | | VALUE OF THE RWCU SYSTEM FLOW WAS SUBSTITUTED FOR THE ACTUAL FLOW VALUE. | | | | WHEN THE RWCU SYSTEM WAS RESTORED TO SERVICE ON 11/02/95, THE ARTIFICIAL | | FLOW VALUE WAS NOT REMOVED FROM THE COMPUTER. THIS SITUATION WAS | | DISCOVERED AT 0655 (CST) ON 11/03/95. | | | | SUBSEQUENT ANALYSIS COMPLETED AT 1540 (CST) ON 11/07/95, SHOWED THAT | | THERMAL POWER WAS AT 2896 MWTh FROM 0000 (CST) TO 0655 (CDT) ON 11/03/95. | | CLINTON FACILITY OPERATING LICENSE NPF-62, SECTION 2.C, SPECIFIES THE | | MAXIMUM OPERATING THERMAL POWER AT 2894 MWTh. THE 2 MWTh IS EQUIVALENT TO | | LESS THAN 0.1% POWER. | | | | LICENSEE IS STILL EVALUATING THE OPERATING DATA FOR 11/02/95 AND WILL | | ADDRESS THIS SITUATION IN THE 30 DAY WRITTEN REPORT SUBMITTED TO THE NRC. | | | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+