U.S. Nuclear Regulatory Commission Operations Center Event Reports For 02/16/95 - 02/17/95 ** EVENT NUMBERS ** 28303 28385 28396 28397 28398 28399 28400 28401 28402 28403 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28303 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 01/29/95 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 05:03 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 01/29/95 | +------------------------------------------------+EVENT TIME: 04:35[EST]| |NRC NOTIFIED BY: RICHARD WILLIS |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |FRANK COSTELLO 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 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | BOTH PRESSURIZER PORVs FOUND INOPERABLE WHILE SHUTDOWN | | | | BOTH PZR PORVs WERE FOUND TO BE INOPERABLE DURING AN OUTAGE SURVEILLANCE. | | THE PORVs COULD NOT BE OPENED. THIS FACT WAS CONFIRMED BY OBSERVING THE | | VALVES LOCALLY WHILE ATTEMPTING TO OPEN THEM. THE BLOCK VALVES ARE | | OPERABLE. THE LICENSEE CONTINUES TO INVESTIGATE THE CAUSE OF THE FAILURE. | | THE LICENSEE WILL NOTIFY THE RESIDENT INSPECTOR. APPROPRIATE STATE AND | | LOCAL OFFICIALS HAVE BEEN NOTIFIED. | | | | * * * UPDATE 1659 2/16/95 FROM HEFFERNAN TAKEN BY STRANSKY * * * | | THE LICENSEE IS RETRACTING THIS EVENT BASED UPON THE COMPLETION OF AN | | ENGINEERING ANALYSIS WHICH DETERMINED THAT THE VALVES WOULD HAVE OPENED | | FULLY IF THE RCS HAD BEEN AT SYSTEM PRESSURE. DECREASED AIR HEADER | | PRESSURE CAUSED THE VALVES TO FAIL TO OPEN WITH THE RCS AT ZERO PRESSURE. | | THE NRC RESIDENT HAS BEEN INFORMED. NOTIFIED R1DO (BORES). | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28385 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 02/15/95 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 00:42 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 02/15/95 | +------------------------------------------------+EVENT TIME: 00:30[EST]| |NRC NOTIFIED BY: BRUCE DANIELSON |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROBERT BORES 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AGASTAT RELAYS FOUND TO EXCEED THEIR QUALIFIED LIFE | | | | MORE THAN ONE DOZEN AGASTAT RELAYS INSTALLED IN CATEGORY I EQUIPMENT HAVE | | BEEN FOUND WHICH HAVE EXCEEDED THEIR TEN YEAR QUALIFIED LIFE. THIS | | INFORMATION WAS DISCOVERED DURING A REVIEW OF VENDOR INFORMATION. THE | | NUMBER IS EXPECTED TO INCREASE AS THE REVIEW PROGRESSES. THE EARLIEST | | INSTALLATION DATE DISCOVERED TO THIS POINT IS 1980. | | | | THE LICENSEE IS EXPECTED TO BEGIN CORE RELOAD IN THREE DAYS. THE PLANT | | INDICATED THIS SCHEDULE MAY BE DELAYED BASED ON THIS EVENT. THE LICENSEE | | WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE 1659 2/16/95 FROM HEFFERNAN TAKEN BY STRANSKY * * * | | | | THE LICENSEE HAS RETRACTED THIS NOTIFICATION. THE REPORT WAS MADE BASED | | UPON VENDOR INFORMATION REGARDING EQUIPMENT ENVIRONMENTAL QUALIFICATION. | | NONE OF THE SUBJECT AGASTAT RELAYS INSTALLED AT THE PLANT ARE PART OF THE | | PLANT EEQ PROGRAM, AND THE SERVICE LIFE DISCUSSED IN THE VENDOR INFORMATION | | PERTAINS ONLY TO ENVIRONMENTAL QUALIFICATION OF THE COMPONENTS. THE NRC | | RESIDENT INSPECTOR HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28396 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [2] [ ] STATE: PA |NOTIFICATION TIME: 09:37 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 02/15/95 | +------------------------------------------------+EVENT TIME: 11:00[EST]| |NRC NOTIFIED BY: DAVID NEFF |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROBERT BORES RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TWO SUPERVISORS ACCESS SUSPENDED FOR DRUG USE | | | | TWO SUPERVISORS HAD THEIR UNESCORTED ACCESS PRIVILEGES REVOKED WHEN THEY | | ADMITTED TO DRUG USE OVER THE PAST SEVERAL YEARS. THESE INDIVIDUALS DID | | NOT PERFORM SAFETY RELATED WORK. THE LICENSEE INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28397 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 13:47 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 09:00[CST]| |NRC NOTIFIED BY: REIS |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BURDICK 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 72 POWER OPERATION | 72 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | QUARTERLY SURVEILLANCES FOR ECCS DIVISION 3 DC BATTERIES NOT PERFORMED. | | | | THE LICENSEE DISCOVERED THAT THE QUARTERLY SURVEILLANCES FOR THE DIVISION 3 | | DC BATTERIES (LICENSEE SURVEILLANCE LOS-DC-Q6) FOR BOTH UNITS WERE NOT | | PERFORMED AS REQUIRED BY THE PLANT TECHNICAL SPECIFICATIONS (TSs). THE | | LICENSEE HAS DECLARED THE HIGH PRESSURE CORE SPRAY (HPCS) SYSTEMS FOR BOTH | | UNITS INOPERABLE AS REQUIRED BY THE TSs. BOTH UNITS ARE CURRENTLY IN | | 14-DAY LIMITING CONDITION FOR OPERATION ACTION STATEMENTS DUE TO THE | | INOPERABILITY OF HPCS. THE REACTOR CORE ISOLATION COOLING (RCIC) SYSTEMS | | AND AUTOMATIC DEPRESSURIZATION SYSTEMS (ADS) FOR BOTH UNITS ARE CURRENTLY | | OPERABLE. | | | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE FAILURE TO PERFORM THE | | REQUIRED SURVEILLANCES (THE LICENSEE HAS AN AUTOMATED SYSTEM TO SCHEDULE | | THESE SURVEILLANCES). THE REQUIRED SURVEILLANCES ARE CURRENTLY BEING | | PERFORMED BY THE LICENSEE. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF | | THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28398 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BIG ROCK POINT REGION: 3 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 14:16 [ET]| |RX TYPE: [1] GE-1 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 13:50[EST]| |NRC NOTIFIED BY: GOBLE |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |BURDICK RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |GRIMES EO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS |SUMMERS 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED DUE TO UNIT SHUTDOWN REQUIRED BY PLANT TECHNICAL | | SPECIFICATIONS. | | | | THE LICENSEE COMMENCED A PLANT SHUTDOWN DUE TO AN UNANALYZED CONDITION | | REGARDING CORE SPRAY SYSTEM FLOW. HIGH DIFFERENTIAL PRESSURE WAS OBSERVED | | ON ONE OF THE BASKET STRAINERS IN THE PLANT FIRE SUPPRESSION SYSTEM, WHICH | | SUPPLIES WATER TO THE CORE SPRAY SYSTEM. THE LICENSEE DOES NOT KNOW THE | | SOURCE OF THE BLOCKAGE AT THIS TIME. THE LICENSEE HAS DECIDED NOT TO | | ATTEMPT TO CLEAN THE STRAINERS DURING THE PLANT SHUTDOWN. THE LICENSEE | | PLANS TO TAKE THE UNIT TO COLD SHUTDOWN CONDITIONS. THE NRC RESIDENT | | INSPECTOR HAS BEEN INFORMED. | | | | * * * UPDATE 1551 2/16/95 FROM GOBLE TAKEN BY STRANSKY * * * | | | | THE UNIT IS CURRENTLY AT APPROXIMATELY 30% POWER AND DECREASING. THE | | LICENSEE PROVIDED THE FOLLOWING CLARIFICATION OF THE SHUTDOWN REQUIREMENT: | | | | "BOTH CORE SPRAY SYSTEMS ARE ASSUMED INOPERABLE DUE TO THE UNANALYZED | | CONDITION FOR ANALYZED SYSTEM FLOW. A DUPLEX BASKET STRAINER IN ONE LINE | | IS ASSUMED BLOCKED BECAUSE OF INDICATED HIGH DIFFERENTIAL PRESSURE AND THE | | INABILITY TO SELECT ONLY ONE STRAINER. THIS CONDITION, IN CONJUNCTION WITH | | FAILURES ASSUMED IN THE ECCS FLOW ANALYSIS (1) BEING LOSS OF ONE FIRE PUMP, | | AND (2) A CORE SPRAY LINE BREAK, RESULTS IN THE UNANALYZED CONDITION FOR | | ADEQUATE CORE SPRAY FLOW. PLANT TECHNICAL SPECIFICATIONS SECTION | | 11.3.1.4.F FOR BOTH CORE SPRAY SYSTEMS INOPERABLE REQUIRE THE PLANT TO BE | | IN THE SHUTDOWN CONDITION, WHICH IS DEFINED AS ALL OR ALL BUT ONE CRD | | [CONTROL ROD DRIVE] FULLY INSERTED AND PRIMARY COOLANT TEMPERATURE LESS | | THAN 212øF, WITHIN 12 HOURS." THE PLANT WILL REMAIN IN THE UNUSUAL EVENT | | UNTIL SHUTDOWN CONDITIONS ARE REACHED. | | | | * * * UPDATE AT 0013 2/17/95 FROM BOSS TAKEN BY WEAVER * * * | | | | THE PLANT WILL BE UNABLE TO MEET THE TIME REQUIREMENT OF THE LCO ACTION | | STATEMENT. SPECIFICALLY, THE PLANT IS CURRENTLY AT 375 F AND WILL NOT BE | | ABLE TO REACH 212 F BY 0150 WHEN THE ACTION STATEMENT TIME LIMIT EXPIRES. | | THE COOLDOWN RATE LIMIT FOR THE CURRENT CONDITIONS IS 100 F PER HOUR. THE | | LICENSEE CONSIDERS THIS TO BE OF MINIMAL SAFETY SIGNIFICANCE AS THE PLANT | | IS STABLE IN COOLDOWN. THEY EXPECT TO REACH 212 F AROUND 0400 TODAY. THE | | PRIMARY CAUSE OF THE DELAY WAS A PROBLEM WITH A DRAIN VALVE IN THE COOLDOWN | | SYSTEM. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. HOO NOTIFIED | | RDO (), EO () | | | | * * * UPDATE AT 0613 2/17/95 FROM PETITJEAN TAKEN BY WEAVER * * * | | | | THE UNUSUAL EVENT WAS TERMINATED AT 0605 WHEN THE PLANT REACHED SHUTDOWN | | CONDITIONS WITH TEMPERATURE LESS THAN 212 F. THE LICENSEE INFORMED THE | | NRC RESIDENT INSPECTOR. HOO NOTIFIED RDO (BURDICK), EO (), FEMA (AUSTIN) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28399 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 14:28 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 13:15[CST]| |NRC NOTIFIED BY: D HODEL |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |TOM BURDICK RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |CHRIS GRIMES EO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS |SULLIVAN FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 90 POWER OPERATION | 90 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TECH SPEC REQUIRED SHUTDOWN BECAUSE DIVISION 2 125 VOLT DC POWER SUPPLY | | DECLARED INOPERABLE. | | | | LICENSEE COMMENCED A REACTOR PLANT SHUTDOWN AT A RATE OF 100 MWe/HOUR | | BECAUSE THEY ENTERED TECH SPEC 3.8.4 (DIVISION 2 DC ELECTRICAL POWER | | SUBSYSTEM INOPERABLE) AFTER DECLARING THE DIVISION 2 125 VOLT DC POWER | | SUPPLY INOPERABLE. THE DIVISION 2 125 VOLT DC ELECTRICAL POWER SYSTEM WAS | | DECLARED INOPERABLE AS A RESULT OF VOLTAGE LESS THAN 129 VOLTS. THE CAUSE | | OF THE LOW VOLTAGE WAS A FAILURE OF A SILICON CONTROLLED RECTIFIER (SCR) | | FIRING CARD IN THE DIVISION 2 BATTERY CHARGER. THE BATTERY CHARGER HAS | | BEEN REPLACED AND THE LICENSEE IS PERFORMING A 4 HOUR OPERABILITY TEST OF | | THE BATTERY CHARGER. BATTERIES ARE EXPECTED TO PROVIDE ADEQUATE VOLTAGE TO | | THE DIVISION 2 DC ELECTRICAL POWER SYSTEM WHILE THE BATTERY CHARGER IS OUT | | OF SERVICE. THE LICENSEE WILL INVESTIGATE WHY THE SCR FIRING CARD FAILED. | | ALL EMERGENCY DIESEL GENERATORS AND ALL THEIR EMERGENCY CORE COOLING | | SYSTEMS ARE FULLY OPERABLE IF NEEDED. ALL OFFSITE POWER IS AVAILABLE AND | | THE GRID IS STABLE. LICENSEE NOTIFIED STATE OFFICIALS THAT THEY WERE IN AN | | UNUSUAL EVENT. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | * * * UPDATE 2034 2/16/95 BY SCHOTTEL TAKEN BY STRANSKY * * * | | | | THE UNUSUAL EVENT WAS TERMINATED AT 1912 CST WHEN THE DIVISION II BATTERY | | CHARGER WAS DECLARED OPERABLE. THE NRC REGION 3 OFFICE ISSUED A 12 HOUR | | NOTICE OF ENFORCEMENT DISCRETION TO THE LICENSEE TO PREVENT AN UNNECESSARY | | SHUTDOWN OF THE UNIT. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | | NOTIFIED R3DO (BURDICK), EO (ROE), FEMA (MOSTELLER). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28400 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [ ] [ ] STATE: FL |NOTIFICATION TIME: 15:01 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 11:45[EST]| |NRC NOTIFIED BY: LYONS |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CASTO 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE 1A EMERGENCY DIESEL GENERATOR (EDG) AUTOMATICALLY STARTED AND LOADED TO | | ITS ASSOCIATED EMERGENCY BUS. | | | | ELECTRICAL MAINTENANCE PERSONNEL WERE REPLACING THE UNDERVOLTAGE RELAY | | (2X5) ON THE 1A3 4160 VOLT AC SAFETY RELATED BUS. WHILE RESTORING THE | | SYSTEM TO ITS NORMAL CONFIGURATION, THE 1A3 BUS DEENERGIZED. THE 1A EDG | | AUTOMATICALLY STARTED, AND LOADED TO THE 1A3 BUS. ALL SAFETY SYSTEMS | | FUNCTIONED AS REQUIRED. THE EDG HAS BEEN SECURED, AND NORMAL POWER HAS | | BEEN RESTORED TO THE 1A3 BUS. THE LICENSEE IS INVESTIGATING THE CAUSE OF | | THE DEENERGIZATION OF THE 1A3 BUS. THE NRC RESIDENT INSPECTOR HAS BEEN | | INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28401 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 02/16/95 | |UNIT: [ ] [2] [3] STATE: IL |NOTIFICATION TIME: 17:29 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 16:00[CST]| |NRC NOTIFIED BY: STACHNIAK |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BURDICK RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 96 POWER OPERATION | 96 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE NOTIFIED THE ILLINOIS ENVIRONMENTAL PROTECTION AGENCY OF A RELEASE | | OF 102 POUNDS OF SODIUM HYPOCHLORITE INTO BOTH UNITS CIRCULATING WATER | | SYSTEMS. | | | | THE LICENSEE NOTIFIED THE STATE THAT THE UNITS HAD OPERATED IN VIOLATION OF | | THE SITE NPDES PERMIT FOR APPROXIMATELY 18 HOURS FROM 1417 ON 2/15/95 TO | | 0900 ON 2/16/95. THE SITE PERMIT ALLOWS INJECTION OF SODIUM HYPOCHLORITE | | INTO THE MAIN CONDENSER FOR A TOTAL OF 2 HOURS PER UNIT. A TOTAL OF 102 | | POUNDS OF SODIUM HYPOCHLORITE WAS INJECTED INTO THE CIRCULATING WATER | | SYSTEMS FOR BOTH UNITS VIA THE MAIN CONDENSERS. THE NRC RESIDENT INSPECTOR | | HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28402 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 02/16/95 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 20:30 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 19:08[CST]| |NRC NOTIFIED BY: MUSGROVE |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CASTO 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PRIMARY CONTAINMENT GROUP 2 AND 5 ISOLATIONS OCCURRED DUE TO TRIP OF | | REACTOR PROTECTION SYSTEM (RPS) MOTOR GENERATOR SET OUTPUT BREAKER. | | | | THE OUTPUT BREAKER FOR THE "B" RPS MOTOR GENERATOR SET TRIPPED, CAUSING A | | LOSS OF POWER TO THE "B" RPS BUS, AND SUBSEQUENT PRIMARY CONTAINMENT GROUPS | | 2 (DRYWELL NITROGEN) AND 5 (REACTOR WATER CLEANUP) OUTBOARD ISOLATIONS, AS | | WELL AS A LOSS OF SUCTION TO THE FISSION PRODUCT MONITORING SYSTEM (FPMS). | | THE GROUP 2 AND 5 ISOLATIONS WERE RESET BY 1921 EST, AND THE FPMS WAS | | RESTORED BY 1925 EST. | | | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE BREAKER TRIP. THE "B" RPS | | BUS REMAINS ON ITS ALTERNATE POWER SUPPLY. THE NRC RESIDENT INSPECTOR HAS | | BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28403 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FERMI REGION: 3 |NOTIFICATION DATE: 02/16/95 | |UNIT: [2] [ ] [ ] STATE: MI |NOTIFICATION TIME: 23:08 [ET]| |RX TYPE: [2] GE-4 |EVENT DATE: 02/16/95 | +------------------------------------------------+EVENT TIME: 22:00[EST]| |NRC NOTIFIED BY: REITH |LAST UPDATE DATE: 02/16/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BURDICK 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 N 0 STARTUP | 0 STARTUP | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR CORE ISOLATION COOLING (RCIC) VACUUM BREAKER ISOLATION DURING | | PERFORMANCE OF SURVEILLANCE TEST. | | | | DURING PERFORMANCE OF A NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM LOGIC | | SURVEILLANCE, THE RCIC VACUUM BREAKER OUTBOARD ISOLATION VALVE (E51-F062) | | CLOSED DUE TO PERSONNEL ERROR. A TECHNICIAN WHO WAS TROUBLESHOOTING AN | | OPEN CIRCUIT INADVERTENTLY CONTACTED AN INCORRECT TERMINAL, ENERGIZING THE | | ISOLATION LOGIC FOR THE VALVE. AT THE TIME OF THE ISOLATION, THE RCIC | | SYSTEM WAS ALREADY ISOLATED DUE TO LOW MAIN STEAM LINE PRESSURE. THE VALVE | | WAS REOPENED WITHIN SEVERAL MINUTES OF THE ISOLATION. THE NRC RESIDENT | | INSPECTOR WILL BE INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+