U.S. Nuclear Regulatory Commission Operations Center Event Reports For 12/20/95 - 12/21/95 ** EVENT NUMBERS ** 29719 29743 29746 29747 29748 29749 29750 29751 29752 29753 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29719 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 12/14/95 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 17:12 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 12/14/95 | +------------------------------------------------+EVENT TIME: 16:30[EST]| |NRC NOTIFIED BY: BEINKE |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHUCK CASTO RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) SYSTEM DECLARED INOPERABLE. | | | | THE ENGINEERING DEPARTMENT NOTIFIED THE CONTROL ROOM AT 1630 HOURS THAT THE | | HPCI PUMP DIFFERENTIAL PRESSURE RATIO (CURRENT DISCHARGE PRESSURE | | SUBTRACTED FROM ITS CURRENT SUCTION PRESSURE DIVIDED BY THE ORIGINAL HPCI | | PUMP DISCHARGE PRESSURE SUBTRACTED FROM ITS SUCTION PRESSURE IS 1.11, WHICH | | IS GREATER THAN ITS LIMIT OF 1.1). HPCI WAS DECLARED INOPERABLE PER | | TECHNICAL SPECIFICATION 3.5.1 (14 DAY LCO ENTERED). ALL OTHER EMERGENCY | | CORE COOLING SYSTEMS, INCLUDING RCIC, ARE FULLY OPERABLE IF NEEDED. AFTER | | THE LICENSEE RECALIBRATES THE HPCI INSTRUMENTATION, THEY WILL REPERFORM THE | | TEST. THE HPCI TEST WAS PERFORMED BY OPERATIONS ON 11/29/95, BUT OPERATIONS | | ROUNDED THE DATA OFF INCORRECTLY, GETTING A RATIO OF 1.1 INSTEAD OF 1.11. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | * * * UPDATE 1432 12/20/95 FROM REED TAKEN BY STRANSKY * * * | | | | THE LICENSEE IS RETRACTING THIS NOTIFICATION. THE LICENSEE DISCOVERED THAT | | THE GAUGE WHICH INDICATES FLOW DEMAND AT THE FLOW CONTROLLER STATION WAS | | READING TOO LOW, CAUSING THE TEST TO BE RUN IMPROPERLY. THE GAUGE WAS | | RECALIBRATED, AND THE TEST WAS REPERFORMED SUCCESSFULLY. SINCE NO WORK HAD | | BEEN PERFORMED ON THE HPCI SYSTEM BETWEEN THE TESTS, THE LICENSEE CONCLUDED | | THAT HPCI HAD ACTUALLY REMAINED OPERABLE. THE NRC RESIDENT INSPECTOR HAS | | BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29743 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SALEM REGION: 1 |NOTIFICATION DATE: 12/19/95 | |UNIT: [1] [2] [ ] STATE: NJ |NOTIFICATION TIME: 20:49 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 12/19/95 | +------------------------------------------------+EVENT TIME: 19:57[EST]| |NRC NOTIFIED BY: GWIRTZ |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MODES 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 N 0 REFUELING | 0 REFUELING | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MAJOR LOSS OF OFFSITE RESPONSE CAPABILITY DUE TO WINTER STORM. | | | | DUE TO AN ONGOING WINTER STORM, GREATER THAN 10% OF THE LICENSEE'S OFFSITE | | EMERGENCY WARNING SIRENS ARE INOPERABLE. THE LICENSEE REPORTED THAT TEN | | SIRENS IN DELAWARE AND ONE SIREN IN NEW JERSEY ARE PRESENTLY INOPERABLE | | BECAUSE OF POWER FAILURES. THE STATE OF DELAWARE IS NOTIFYING ROUTE | | ALERTING TEAMS AS A BACKUP DUE TO THE LOSS OF THE SIRENS. THIS CONDITION | | AFFECTS BOTH SALEM 1 AND 2, AS WELL AS HOPE CREEK. THE NRC RESIDENT | | INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | | | | THIS EVENT WAS ALSO REPORTED BY HOPE CREEK. SEE EVENT 29745. | | | | * * * UPDATE 1146 12/20/95 FROM SAUER TAKEN BY STRANSKY * * * | | | | FIVE SIRENS IN DELAWARE REMAIN INOPERABLE, BUT THE OTHER SIX HAVE BEEN | | RETURNED TO SERVICE. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | | NOTIFIED R1DO (MODES). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29746 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 12/20/95 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 09:27 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 06:17[CST]| |NRC NOTIFIED BY: MIKE ENTWISTLE |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | HPCS PUMP INOPERABLE FOR 29 MINUTES | | | | THE UNIT TWO HIGH PRESSURE CORE SPRAY (HPCS) PUMP WAS DECLARED INOPERABLE | | WHEN THE HPCS PUMP CONTROL SWITCH WAS PLACED IN THE PULL-TO-LOCK POSITION. | | THE CONTROL SWITCH WAS PLACED IN THE P-T-L POSITION FOLLOWING THE RECEIPT | | OF AN ANNUNCIATOR ALARM INDICATING THAT THE HPCS PUMP BREAKER HAD RECEIVED | | AN AUTO-TRIP SIGNAL. THE HPCS PUMP WAS IN THE STAND-BY (OFF) CONDITION | | WHEN THE ALARM WAS RECEIVED. | | | | THE HPCS PUMP BREAKER TRIP ALARM WAS RECEIVED DURING THE PERFORMANCE OF | | MODIFICATION TESTING FOLLOWING THE PLANNED REPLACEMENT OF THE REVERSE POWER | | TRIP RELAY FOR THE HPCS DIESEL GENERATOR. | | | | ALTHOUGH THE HPCS PUMP BREAKER TRIP ALARM ANNUNCIATED PROPERLY IN REGARDS | | TO THE TESTING IN PROGRESS, THE ANNUNCIATION OF THE ALARM WAS NOT | | IDENTIFIED IN THE TEST PROCEDURE, AND WAS AN UNEXPECTED ALARM TO THE | | CONTROL ROOM PERSONNEL. | | | | THE HPCS PUMP CONTROL SWITCH WAS PLACED IN THE PULL-TO-LOCK POSITION IN | | ORDER FOR THE UNIT TWO NUCLEAR STATION OPERATOR TO MAINTAIN POSITIVE | | CONTROL OF PLANT EQUIPMENT UNTIL THE REASON FOR THE ALARM COULD BE | | UNDERSTOOD. | | | | FOLLOWING A REVIEW OF THE MODIFICATION TEST AND RELATED ELECTRICAL WIRING | | DRAWINGS, THE RECEIPT OF THE ALARM WAS PROVEN TO BE A RESULT OF THE | | TESTING, ALTHOUGH THIS WAS NOT PROPERLY IDENTIFIED IN THE PROCEDURE. | | | | THE HPCS PUMP CONTROL SWITCH WAS REMOVED FROM THE PULL-TO-LOCK POSITION, | | AND THE HPCS PUMP WAS RETURNED TO AN OPERABLE STATUS, FOLLOWING A REVIEW OF | | THE MODIFICATION TEST. THE HPCS PUMP WAS INOPERABLE FOR 29 MINUTES. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 29747 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GE NUCLEAR ENERGY |NOTIFICATION DATE: 12/20/95 | | RXTYPE: URANIUM FUEL FABRICATION |NOTIFICATION TIME: 14:59 [ET]| |COMMENTS: LEU CONVERSION (UF6 TO UO2) |EVENT DATE: 12/19/95 | | LEU FABRICATION |EVENT TIME: 15:00[EST]| | LWR COMMERICAL FUEL |LAST UPDATE DATE: 12/20/95 | | CITY: WILMINGTON REGION: 2 +-----------------------------+ | COUNTY: NEW HANOVER STATE: NC |PERSON ORGANIZATION| |LICENSE#: SNM-1097 AGREEMENT: Y |SKINNER RDO | | DOCKET: 07001113 |COOL EO | +------------------------------------------------+ | |NRC NOTIFIED BY: S. MURRAY | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF COMPUTER INVENTORY CONTROL COULD HAVE PERMITTED ADDITION OF GREATER | | THAN AUTHORIZED ENRICHMENT INTO POWER PRODUCTION STREAM. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "AT APPROXIMATELY 1500 ON 12/19/95, IN THE PROCESS OF INVESTIGATING A | | PROCEDURE VIOLATION, IT WAS DISCOVERED THAT A SECONDARY CONTROL ON THE | | COMPUTER INVENTORY SYSTEM HAD ALSO BEEN VIOLATED. AS A RESULT, THERE WAS A | | POTENTIAL FOR GREATER THAN AUTHORIZED ENRICHMENT TO BE INTRODUCED INTO THE | | LINE 5 POWDER RECYCLE EQUIPMENT. | | | | NO UNSAFE CONDITION EXISTED. GEOMETRY CONTROLS HAD BEEN MAINTAINED AND ALL | | POWDER ENRICHMENTS WERE WITHIN CRITICALITY SAFETY LIMITS. | | | | CONTROLS WERE REESTABLISHED IMMEDIATELY, WELL WITHIN THE 4 HOUR CRITERIA. | | | | WE ARE REPORTING THIS CONDITION, PURSUANT TO NRC BULLETIN 91-01, WITHIN THE | | 24 HOUR TIME FRAME. THE POWDER PRODUCTION LINE 5 RECYCLE HOOD HAS BEEN | | SHUT DOWN PENDING AN INVESTIGATION AND IMPLEMENTATION OF CORRECTIVE | | ACTIONS." | | | | THE LICENSEE REPORTED THAT A TOTAL OF 13.895 KG OF 3.8 WEIGHT PERCENT | | ENRICHED U-235 MATERIAL HAD BEEN MOVED WITHOUT REQUIRED ENRICHMENT CONTROL. | | THE ENRICHMENT MET THE REQUIRED CONDITION OF 4.013 WEIGHT PERCENT U-235. | | THE LICENSEE STATED THAT MULTIPLE FAILURES OF THIS TYPE WOULD HAVE HAD TO | | OCCUR BEFORE A CRITICALITY COULD OCCUR. THE LICENSEE PLANS TO CONTRACT NRC | | REGION II REGARDING THIS ISSUE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 29748 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: AT&T |NOTIFICATION DATE: 12/20/95 | | CITY: RICHMOND REGION: 2 |NOTIFICATION TIME: 15:27 [ET]| | COUNTY: STATE: VA |EVENT DATE: 12/20/95 | |LICENSE#: AGREEMENT: N |EVENT TIME: 00:00[EST]| | DOCKET: |LAST UPDATE DATE: 12/20/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |SKINNER RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: SERRANO | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE CALLED TO REPORT A LOST NI-63 SOURCE. | | | | THE LICENSEE REPORTED THE LOSS OF A 15mCi NI-63 SOURCE (SERIAL NO. 1130) | | FROM THE AT&T RICHMOND WORKS. THE SOURCE WAS USED IN A THICKNESS GAUGE, | | AND IS BELIEVED TO HAVE BEEN LOST SOMETIME BETWEEN 12/94 AND 6/95. THE | | LICENSEE HAS PERFORMED A RIGOROUS SEARCH OF THE FACILITY AND HAS BEEN | | UNABLE TO LOCATE THE SOURCE. THE LICENSEE HAS ALREADY CONTACTED NRC REGION | | II DIRECTLY REGARDING THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29749 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 12/20/95 | |UNIT: [2] [3] [ ] STATE: PA |NOTIFICATION TIME: 16:42 [ET]| |RX TYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 16:00[EST]| |NRC NOTIFIED BY: FRANSSEN |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MODES RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | STANDBY GAS TREATMENT SYSTEM MAY NOT PROVIDE ADEQUATE DIFFERENTIAL PRESSURE | | DURING SPECIFIC LOSS OF COOLANT ACCIDENT CONDITIONS. | | | | DURING MUCH OF THE PLANT LIFETIME, THE STANDBY GAS TREATMENT SYSTEM HAS | | BEEN OPERATED DURING REGENERATION OF THE REACTOR WATER CLEANUP SYSTEM | | DEMINERALIZER RESINS TO REDUCE EFFLUENT RELEASES THROUGH THE PLANT STACK. | | THE LICENSEE HAS DETERMINED THAT USE OF THE 'B' SGTS TRAIN (SHARED BETWEEN | | UNITS) DURING RESIN REGENERATION COULD HAVE DEGRADED THE ABILITY OF THE | | SGTS TO MAINTAIN AN ADEQUATE DIFFERENTIAL PRESSURE (-0.25" WATER) BETWEEN | | THE SECONDARY CONTAINMENT AND THE OUTSIDE ATMOSPHERE DURING LOCA | | CONDITIONS. (THE 'A' TRAIN IS DEDICATED TO UNIT 2, WHILE THE 'C' TRAIN IS | | USED BY UNIT 3.) | | SPECIFICALLY, THE LICENSEE REPORTED THAT, DURING A LOCA ON ONE OF THE | | UNITS, THE SINGLE FAILURE OF THE DEDICATED SGTS TRAIN, WHILE THE 'B' TRAIN | | WAS BEING USED FOR RWCU RESIN REGENERATION ON THE OTHER UNIT, COULD RESULT | | IN THE INABILITY OF THE SGTS TO MAINTAIN AN ADEQUATE DIFFERENTIAL PRESSURE | | ON THE UNIT HAVING THE LOCA. THIS IS BECAUSE THE 'B' FAN WOULD BE REQUIRED | | TO PROVIDE SUCTION ON BOTH THE LOCA AND NON-LOCA UNITS. FAN CURVES FOR THE | | SGTS INDICATE THAT THE 'B' TRAIN WOULD LIKELY NOT BE ABLE TO MAINTAIN | | ADEQUATE DIFFERENTIAL PRESSURE ON THE LOCA UNIT. | | | | THE LICENSEE HAS CHANGED PLANT PROCEDURES TO ADDRESS THIS ISSUE. THE NRC | | RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29750 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 12/20/95 | |UNIT: [1] [ ] [ ] STATE: AZ |NOTIFICATION TIME: 19:10 [ET]| |RX TYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 13:12[MST]| |NRC NOTIFIED BY: GRABO |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PELLET RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | LICENSEE DISCOVERED THAT ONE MAIN STEAM ISOLATION VALVE BYPASS VALVE WOULD | | NOT CLOSE ON DEMAND. | | | | AT 1312 MST, THE LICENSEE DISCOVERED DURING A SURVEILLANCE TEST THAT ONE OF | | FOUR MSIV BYPASS VALVES WOULD NOT CLOSE WHEN GIVEN A CONTAINMENT ISOLATION | | SIGNAL. UPON INVESTIGATION, THE LICENSEE FOUND THAT THE VALVE MANUAL | | OPERATOR HAD NOT BEEN PLACED IN THE NEUTRAL POSITION, EFFECTIVELY BLOCKING | | AUTOMATIC OPERATION OF THE VALVE. THE LICENSEE BELIEVES THAT THE VALVE HAS | | BEEN IN THIS CONDITION SINCE THE UNIT RESTARTED FROM ITS LAST REFUELING | | OUTAGE IN THE SPRING. | | | | THE LICENSEE HAS CORRECTED THE CONDITION OF THE VALVE. THE NRC RESIDENT | | INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | * * * UPDATE 1947 12/20/95 FROM GRABO TAKEN BY STRANSKY * * * | | | | THE LICENSEE IS RETRACTING THIS NOTIFICATION. THE LICENSEE STATED THAT | | SINCE THE VALVE WAS ISOLATED AT 1312 MST, THE TECHNICAL SPECIFICATION | | ACTION STATEMENT WAS MET, AND THEREFORE THIS EVENT DOES NOT MEET THE | | REPORTING REQUIREMENTS OF 10 CFR 50.72. THE LICENSEE STILL PLANS TO SUBMIT | | AN LER REGARDING THIS EVENT. THE NRC RESIDENT INSPECTOR WILL BE INFORMED. | | NOTIFIED R4DO (PELLET). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29751 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 12/20/95 | |UNIT: [1] [2] [ ] STATE: PA |NOTIFICATION TIME: 20:55 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 17:30[EST]| |NRC NOTIFIED BY: WALSH |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MODES RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | CONTROL ROOM EMERGENCY OUTSIDE AIR SUPPLY SYSTEM FAILED TO START DURING | | TESTING. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "DIVISION I OF THE CONTROL ROOM OUTSIDE AIR SUPPLY SYSTEM (CREOASS) FAILED | | TO START WHEN THE EMERGENCY OUTSIDE AIR INTAKE PORTION OF THE LOGIC WAS | | INITIATED DURING TESTING. | | | | EARLIER IN THE DAY THE CHLORINE DETECTION PORTION OF THE CREOASS INITIATION | | LOGIC WAS REMOVED FROM THE CIRCUIT SINCE IT IS NO LONGER REQUIRED. THE | | POST DEACTIVATION TESTING REQUIRED WAS THE 18 MONTH LOGIC SYSTEM FUNCTIONAL | | TEST. DURING PERFORMANCE OF THE LOGIC FUNCTIONAL TESTS, THE SYSTEM FAILED | | TO INITIATE ON THE OUTSIDE AIR INTAKE RADIATION SIGNAL. SUBSEQUENT | | INVESTIGATION HAS IDENTIFIED A FAULTY AGASTAT RELAY. THE RELAY WAS | | REPLACED AND THE CREOASS SYSTEM WAS SUCCESSFULLY TESTED." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29752 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRUNSWICK REGION: 2 |NOTIFICATION DATE: 12/20/95 | |UNIT: [1] [ ] [ ] STATE: NC |NOTIFICATION TIME: 22:13 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 18:13[EST]| |NRC NOTIFIED BY: WILLIAMS |LAST UPDATE DATE: 12/20/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SKINNER 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 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ABNORMAL FLOW CONTROLLER RESPONSE DURING TEST CAUSED HPCI SYSTEM TO DEVELOP | | LEAK. | | | | THE LICENSEE REPORTED THAT WHILE PERFORMING A POST-MAINTENANCE TEST RUN OF | | THE HIGH PRESSURE COOLANT INJECTION SYSTEM, THE HPCI FLOW CONTROLLER | | RESPONDED ABNORMALLY, CAUSING A HIGH PUMP DISCHARGE PRESSURE AND BLOWING | | OUT A GASKET ON A FLANGE FOR THE PUMP DISCHARGE FLOW ORIFICE. THE FLANGE | | HAD BEEN LEAKING APPROXIMATELY 20 DROPS/MIN PRIOR TO THE TEST. THE | | LICENSEE HAD STARTED THE SYSTEM NORMALLY, BUT NOTED A HIGHER THAN NORMAL | | PRESSURE AT THE PUMP DISCHARGE. | | | | THE LICENSEE HAS SECURED THE HPCI SYSTEM AND IS ISOLATING THE SYSTEM IN | | ORDER TO REPAIR THE LEAKING FLANGE. THE LICENSEE ALSO PLANS TO | | TROUBLESHOOT THE FLOW CONTROLLER. THE LICENSEE IS UNSURE OF THE | | REPORTABILITY OF THIS EVENT BECAUSE THE HPCI SYSTEM WAS ALREADY OUT OF | | SERVICE FOR MAINTENANCE PRIOR TO THE EVENT. THE NRC RESIDENT INSPECTOR HAS | | BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29753 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ZION REGION: 3 |NOTIFICATION DATE: 12/21/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 00:53 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 12/20/95 | +------------------------------------------------+EVENT TIME: 23:10[CST]| |NRC NOTIFIED BY: LT HANSON |LAST UPDATE DATE: 12/21/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 73 POWER OPERATION | 73 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFEGUARDS DEGRADATION RELATED TO AN AREA BOUNDARY | | | | IMMEDIATE COMPENSATORY MEASURES TAKEN UPON DISCOVERY. NO OUTSIDE AGENCIES | | WERE INVOLVED. THE NRC RESIDENT WAS NOT NOTIFIED. | | | | SEE HOO LOG FOR DETAILS. | +------------------------------------------------------------------------------+