U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/14/97 - 01/15/97 ** EVENT NUMBERS ** 31586 31587 31588 31589 31590 31591 31592 31593 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31586 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 01/14/97 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 07:12 [ET]| |RX TYPE: [1] CE |EVENT DATE: 01/13/97 | +------------------------------------------------+EVENT TIME: 23:30[EST]| |NRC NOTIFIED BY: WALTER JOHNSON |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN WHITE 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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE NOTIFIED THE STATE OF MAINE OF A 1.4 Ci RELEASE WHICH EXCEEDED THE | | SCHEDULED 0.1 Ci RELEASE VALUE. | | | | THE LICENSEE DETERMINED THROUGH A SAMPLE THAT THE GASEOUS RELEASE FROM | | CONTAINMENT HAD HIGHER THAN ANTICIPATED RADIOACTIVITY. THE CALCULATED | | ACTIVITY FOR 1/13/97 WAS DETERMINED TO BE 1.4 Ci RATHER THAN THE | | ANTICIPATED VALUE OF 1.0 Ci. THE LICENSEE BELIEVES THAT THE HIGHER VALUE | | RESULTED FROM REMOVAL OF THE REACTOR VESSEL HEAD AND FLOODING OF THE | | REFUELING CAVITY. | | | | THE LICENSEE HAD NOTIFIED THE STATE OF MAINE THAT THEY ANTICIPATED A | | RELEASE OF 1.0 Ci FOR THE DAY. ANY DEVIATION THAT EXCEEDS THE SCHEDULED | | RELEASE MUST BE REPORTED BY THE LICENSEE TO THE STATE AUTHORITIES. THESE | | NOTIFICATIONS ARE REPORTABLE TO THE NRC. THE LICENSEE ALSO INFORMED THE | | NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31587 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 01/14/97 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 10:31 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 08:00[EST]| |NRC NOTIFIED BY: STEVE SMITH |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN WHITE RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 3 | N Y 94 POWER OPERATION | 94 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE NEW YORK DEPARTMENT OF ENVIRONMENTAL CONSERVATION | | THAT SOME OIL FROM THE MAIN TURBINE LEAKED INTO THE DISCHARGE CANAL. AN | | OIL SHEEN WAS OBSERVED ON THE HUDSON RIVER, SO THE LICENSEE ALSO NOTIFIED | | THE U.S. COAST GUARD. THE LICENSEE ALSO INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31588 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 01/14/97 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 12:06 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 00:10[EST]| |NRC NOTIFIED BY: D. MEKOFF |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SILK 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 +------------------------------------------------------------------------------+ | INVALID SHUTDOWN COOLING SYSTEM ISOLATION | | | | AN INVALID GROUP 3 ISOLATION OCCURRED AFTER TECHNICIANS REMOVED FUSES AS | | PART OF A CLEARANCE PROCEDURE. THE SHUTDOWN COOLING SUCTION ISOLATION VALVE | | CLOSED AS A RESULT OF THE ISOLATION SIGNAL. THE LICENSEE REPORTED THAT THE | | SHUTDOWN COOLING IS NOT REQUIRED FOR DECAY HEAT REMOVAL WITH THE REACTOR IN | | ITS PRESENT CONFIGURATION. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF | | THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31589 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 01/14/97 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 14:11 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 13:30[EST]| |NRC NOTIFIED BY: ROTHGEB |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SILK 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DOOR TO CABLE SPREADING ROOM FOUND BLOCKED OPEN | | | | THE SHIFT MANAGER WAS NOTIFIED THAT A DOOR TO THE CABLE SPREADING ROOM | | LOCATED BELOW THE CONTROL ROOM WAS BLOCKED OPEN. THIS DOOR IS A HIGH ENERGY | | LINE BREAK PROTECTION BOUNDARY. THE DOOR HAS BEEN CLOSED AND AN | | INVESTIGATION IS BEING CONDUCTED. THE NRC RESIDENT INSPECTOR HAS BEEN | | INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31590 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 01/14/97 | |UNIT: [ ] [2] [ ] STATE: CA |NOTIFICATION TIME: 14:14 [ET]| |RX TYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 07:30[PST]| |NRC NOTIFIED BY: CLAY WILLIAM |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOSEPH TAPIA RDO | |NONR OTHER UNSPEC REQMNT | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GREATER THAN 1% OF TUBES IN STEAM GENERATOR FOUND DEFECTIVE | | | | IN THE CURRENT REFUELING OUTAGE, THE LICENSEE INSPECTED 100% OF THE TUBES | | IN STEAM GENERATOR E-088. THE LICENSEE HAS DETERMINED THAT 1.2% OF THE | | TUBES REQUIRE REPAIR OR PLUGGING. THESE TUBES HAD INDICATIONS OF EITHER | | CIRCUMFERENTIAL OR AXIAL CRACKING. INSPECTION OF THE OTHER STEAM GENERATOR | | HAS NOT YET BEEN COMPLETED. THIS REPORT WAS MADE IN ACCORDANCE WITH PLANT | | TECHNICAL SPECIFICATIONS. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31591 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 01/14/97 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 15:58 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 15:32[EST]| |NRC NOTIFIED BY: BROWN |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SILK RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | RIVER TEMPERATURE BELOW DESIGN BASIS LIMIT | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "THE RIVER TEMPERATURE DECREASED BELOW THE DESIGN BASIS LIMIT. THE LOWER | | TEMPERATURE HAS NO EFFECT ON PLANT EQUIPMENT. CURRENT TEMPERATURE IS | | APPROXIMATELY 33øF VERSUS THE DESIGN LIMIT OF 35øF, THE CAUSE OF THE EVENT | | WAS INACCURACIES IN THE UFSAR. THE UFSAR DOES NOT REFLECT ACTUAL WINTER | | OPERATING TEMPERATURES AT HADDAM NECK." | | | | THE LICENSEE PLANS TO UPDATE THE UFSAR AND DESIGN BASIS CALCULATIONS. THE | | NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31592 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOK REGION: 3 |NOTIFICATION DATE: 01/14/97 | |UNIT: [ ] [2] [ ] STATE: MI |NOTIFICATION TIME: 16:49 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 10:00[EST]| |NRC NOTIFIED BY: DEPUYDT |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BURGESS RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CCW TRAIN INOPERABLE DUE TO SPACER MISSING FROM TORQUE SWITCH | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "AT 1000 HOURS TODAY, WITH UNIT 2 AT 100 PERCENT RATED THERMAL POWER, IT | | WAS DETERMINED THAT THE 2-CMO-415, EAST COMPONENT COOLING WATER (CCW) | | SUPPLY TO THE MISCELLANEOUS HEADER, WAS INOPERABLE DUE TO A TORQUE SWITCH | | CONFIGURATION THAT COULD PREVENT THE VALVE FROM GOING FULL CLOSED. THE | | VALVE, PER THE DESIGN BASIS, IS DESIGNED TO BE MANUALLY CLOSED DURING | | POST-LOCA OPERATION AFTER RECIRCULATION HAS COMMENCED. DUE TO THE | | INOPERABLE 2-CMO-415, THE EAST CCW TRAIN WAS DECLARED INOPERABLE BY | | OPERATIONS, AND THE VALVE WAS CLOSED. CONSERVATIVELY, THE VALVE AND CCW | | TRAIN HAVE NOT BEEN ABLE TO PERFORM THEIR DESIGN FUNCTION SINCE SEPTEMBER | | 3, 1996, WHEN THE NEW TORQUE SWITCH WAS INSTALLED, THEREFORE, THIS EVENT IS | | BEING REPORTED UNDER 10 CFR 50.72(b)(1)(ii)(B), AS A CONDITION OUTSIDE THE | | DESIGN BASIS. | | | | THE NEW TORQUE SWITCH WAS INSTALLED IN SEPTEMBER 1996, AND SATISFACTORILY | | TESTED UNDER STATIC CONDITIONS PRIOR TO RETURN TO SERVICE. ON JANUARY | | 12,1997, ANOTHER VALVE WITH THE IDENTICAL TORQUE SWITCH CONFIGURATION | | FAILED TO GO FULLY CLOSED. THE INVESTIGATION INTO THE FAILURE TODAY | | REVEALED THAT IT WAS DUE TO THE LACK OF A SPACER IN THE TORQUE SWITCH | | ASSEMBLY. THIS FAILURE WOULD ONLY AFFECT VALVE TRAVEL IN THE CLOSED | | DIRECTION. | | | | A SEARCH REVEALED THAT SEVEN OF THESE ASSEMBLIES WERE RECEIVED BY THE | | PLANT, FOUR OF WHICH HAVE BEEN INSTALLED. THE REMAINDER OF THE SHIPMENT LOT | | HAVE NOT BEEN INSTALLED., AND HAVE BEEN VERIFIED TO LACK THE SPACER WHICH | | WOULD PREVENT THE FAILURE. TWO OF THE VALVES WHICH RECEIVED THE NEW | | SWITCHES ARE NON-SAFETY APPLICATIONS, AND THE THIRD, WHICH IS SAFETY | | RELATED, IS AN APPLICATION WHERE THE DIRECTION OF REQUIRED TRAVEL IS IN THE | | OPEN DIRECTION. THE FOURTH VALVE IS 2-CMO-415. AFTER DISCUSSION WITH | | ENGINEERING, IT WAS DETERMINED THAT ALTHOUGH THE VALVE ORIGINALLY TESTED | | SATISFACTORILY, THE VALVE SHOULD BE DECLARED INOPERABLE DUE TO THE TORQUE | | SWITCH CONFIGURATION, SINCE REASONABLE ASSURANCE DID NOT EXIST THAT THE | | VALVE COULD PERFORM ITS DESIGN FUNCTION. | | | | THE TECHNICAL SPECIFICATION ACTION STATEMENT FOR THE CCW SYSTEM HAS BEEN | | ENTERED, WHICH REQUIRES THAT THE INOPERABLE TRAIN BE RESTORED WITHIN 72 | | HOURS. CURRENT PLANS ARE TO RESTORE THE EAST CCW TRAIN TO OPERABLE STATUS | | BY TOMORROW MORNING, JANUARY 15, 1997." | | | | THE LICENSEE IS ALSO EVALUATING THE NEED FOR A PART 21 NOTIFICATION. THE | | NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | | | | | | | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31593 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BIG ROCK POINT REGION: 3 |NOTIFICATION DATE: 01/14/97 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 18:31 [ET]| |RX TYPE: [1] GE-1 |EVENT DATE: 01/14/97 | +------------------------------------------------+EVENT TIME: 16:15[EST]| |NRC NOTIFIED BY: BOURASSA |LAST UPDATE DATE: 01/14/97 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BURGESS 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 +------------------------------------------------------------------------------+ | HIGH ELECTRICAL RESISTANCE MEASURED ACROSS STATION BATTERY | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "THE STATION BATTERY CONNECTION (CELL NO. 30 TO NO. 31) RESISTANCE WAS | | RECORDED OUTSIDE OF THE ACCEPTANCE CRITERIA. THE SHUNT INTER-TIER | | CONNECTION READ 639 æOHM. ACCEPTANCE CRITERIA IS 600 æOHM OR LESS. THE | | STATION BATTERIES WERE DECLARED INOPERABLE BASED ON THE HIGH RESISTANCE | | READING. CANNOT CONCLUDE AT THIS TIME IF THE STATION BATTERIES COULD HAVE | | PERFORMED THEIR SAFETY FUNCTION. PLANT IS IN COLD SHUTDOWN; BATTERIES ARE | | NOT REQUIRED TO BE OPERABLE." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+