U.S. Nuclear Regulatory Commission Operations Center Event Reports For 08/15/94 - 08/16/94 ** EVENT NUMBERS ** 27671 27672 27673 27674 27675 27676 27677 27678 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27671 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COMANCHE PEAK REGION: 4 |NOTIFICATION DATE: 08/15/94 | |UNIT: [ ] [2] [ ] STATE: TX |NOTIFICATION TIME: 13:40 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/15/94 | +------------------------------------------------+EVENT TIME: 10:45[CDT]| |NRC NOTIFIED BY: TIM CLOSER |LAST UPDATE DATE: 08/15/94 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES CAIN 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 | M/R Y 75 POWER OPERATION | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT 2 WAS MANUALLY TRIPPED FROM 75% POWER DUE TO LEAKING MAIN TRANSFORMER | | BUSHING. | | | | AT APPROXIMATELY 0730CDT ON 8/14/94, OPERATORS NOTICED A SMALL OIL LEAK ON | | "C" PHASE MAIN TRANSFORMER 2MT2 BUSHING. AT MIDNIGHT THE LICENSEE COMMENCED | | A UNIT SHUTDOWN FOR REPAIRS. AT 10454CDT OPERATORS MANUALLY TRIPPED THE | | REACTOR TO PREVENT POSSIBLE DAMAGE TO THE LEAKING BUSHING. | | | | ALL RODS FULLY INSERTED. FOLLOWING THE REACTOR TRIP REACTOR COOLANT PUMP | | NO. 1 AND SEVERAL OTHER NON-ESSENTIAL LOADS ALSO TRIPPED DUE TO AN APPARENT | | ELECTRICAL TRANSIENT. THE "2A1" 6900KV BUS WHICH SUPPLIES THE ABOVE LOADS | | REMAINED ENERGIZED DURING THE TRANSFER FROM THE UNIT AUX TRANSFORMER TO | | OFFSITE POWER. THE LICENSEE IS INVESTIGATING THE CAUSE OF THE ABOVE TRIPS. | | THE SPRAY BLOCK VALVE FROM REACTOR COOLANT LOOP NO. 1 WAS SHUT FOLLOWING | | THE RCP TRIP. FULL PRESSURIZER SPRAY FLOW IS AVAILABLE FROM REACTOR COOLANT | | LOOP NO. 4. BOTH MOTOR DRIVEN AND THE STEAM DRIVEN AUXILIARY FEEDWATER | | PUMPS ACTUATED ON LOW-LOW STEAM GENERATOR LEVEL. OPERATORS MANUALLY | | DECREASED AUXILIARY FEEDWATER FLOW TO LIMIT RCS COOLDOWN. THREE ADDITIONAL | | AUXILIARY FEEDWATER ACTUATIONS OCCURRED DURING STEAM DUMP OPERATION DUE TO | | STEAM GENERATOR SHRINK AND SWELL. | | | | THE UNIT IS CURRENTLY STABLE IN MODE 3 AT NORMAL OPERATING TEMPERATURE AND | | PRESSURE WITH AN ESTIMATED RESTART FOLLOWING REPAIRS ON 8/17/94. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27672 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 08/15/94 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 16:06 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/12/94 | +------------------------------------------------+EVENT TIME: 12:00[CDT]| |NRC NOTIFIED BY: WAGNER |LAST UPDATE DATE: 08/15/94 | |HQ OPS OFFICER: GREG SCARFO +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS BURDICK RDO | |BAB2 20.2201(a)(1)(ii) LOST/STOLEN LNM>10X | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | LOST 10 MILLICURIE NICKEL-63 SOURCE. | | | | DURING THE PERFORMANCE OF THE SEMI-ANNUAL INVENTORY, A 10 MILLICURIE | | NICKEL-63 SOURCE (SERIAL #"27119") WAS DETERMINED TO BE MISSING FROM ITS | | EXPLOSIVE DETECTOR. THE LAST TIME THE WHEREABOUTS OF THE SOURCE WAS KNOWN | | WAS ON 08/12 AT NOON. A SEARCH HAS NOT FOUND THE MISSING SOURCE. NICKEL-63 | | IS REPORTED TO BE A BETA EMITTER. THE SOURCES ARE USUALLY KEPT IN A SAFE IN | | THE CALIBRATION FACILITY. INSTRUMENT/MAINTENANCE TECHNICIANS USE THIS TYPE | | OF SOURCE ON AN INFREQUENT BASIS (NOT REGULARLY USED). | | | | A SEARCH FOR THE SOURCE IS ONGOING. THE LICENSEE INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27673 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 08/15/94 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 16:13 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 08/15/94 | +------------------------------------------------+EVENT TIME: 14:35[CDT]| |NRC NOTIFIED BY: TIEDEMANN |LAST UPDATE DATE: 08/15/94 | |HQ OPS OFFICER: GREG SCARFO +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS BURDICK RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN 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 +------------------------------------------------------------------------------+ | LOSS OF 12 SIRENS DUE TO A LOCAL LOSS OF ELECTRICAL SERVICE. | | | | TWELVE SIRENS IN THE EMERGENCY NOTIFICATION SYSTEM WERE DECLARED INOPERABLE | | WHEN A LOSS OF LOCAL POWER TO THE SIRENS OCCURRED. THIS AMOUNTS TO | | APPROXIMATELY 27% OF THE TOTAL NUMBER OF SIRENS. THIS OCCURRED DUE TO A | | FAILED COMMON ELECTRICAL BREAKER IN THE CORNBELT RURAL COOP DISTRIBUTION | | SYSTEM. THE TIME TO REPAIR IS UNKNOWN. THE LICENSEE HAS NOTIFIED STATE | | AGENCIES, LOCAL AGENCIES AND FEMA. THE LICENSEE INFORMED THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 27674 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: NORTH MEMORIAL MEDICAL CENTER |NOTIFICATION DATE: 08/15/94 | | CITY: ROBBINSDALE REGION: 3 |NOTIFICATION TIME: 14:26 [ET]| | COUNTY: STATE: MN |EVENT DATE: 08/03/94 | |LICENSE#: 22-05792-01 AGREEMENT: N |EVENT TIME: 18:30[CDT]| | DOCKET: |LAST UPDATE DATE: 08/15/94 | | +-----------------------------+ | |PERSON ORGANIZATION| | |THOMAS BURDICK RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: MARY FOX (VIA FAX) | | |HQ OPS OFFICER: STEVE SANDIN | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE RADIATION SAFETY OFFICER OF THE NORTH MEMORIAL MEDICAL CENTER OF | | ROBBINSDALE, MINNESOTA, REPORTED THAT THERE MAY HAVE BEEN SOME DISCREPANCY | | IN THE DOSE MEASUREMENT DURING A BRONCHIAL EXPOSURE. | | | | THE FOLLOWING IS THE TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | "I AM REPORTING AN APPARENT MISADMINISTRATION. THE EVENTS ARE AS FOLLOWS: | | | | 1. THURSDAY, AUGUST 4TH, 1994 I RECEIVED A CALL FROM A MEDICAL | | PHYSICIST INFORMING ME THAT ACCORDING TO THE RADIATION ONCOLOGIST, THERE | | MAY HAVE BEEN SOME PROBLEMS WITH A BRONCHIAL INSERTION THE PREVIOUS | | EVENING. | | | | 2. I THEN CALLED DR. ECKER, THE RADIATION ONCOLOGIST. HE REPORTS THAT | | A NURSE CALLED HIM WEDNESDAY EVENING AUGUST 3RD AT APPROXIMATELY 6:30PM TO | | REPORT THAT THE CATHETER OUTSIDE A BRONCHIAL IMPLANT PATIENT "LOOKED | | LONGER". HE THEN ORDERED A CHEST X-RAY, WHICH HE REPORTED WAS FOGGED. HE | | FURTHER STATED THAT AFTER HE PERSONALLY OBSERVED THE PATIENT, IT WAS | | APPARENT THAT THE MATERIAL WAS NOT EXACTLY IN THE SAME SPOT, BUT IN | | REASONABLE POSITION, AND THAT MOST OF THE TUMOR WAS GETTING THE DOSE. | | KEEPING THE PATIENTS HEALTH IN MIND AND KNOWING THAT THIS PATIENT WAS NOT A | | CANDIDATE FOR A REPEAT BRONCHOSCOPY, HE TAPED THE CATHETER INTO PLACE. DR. | | ECKER SAID HE DID EVERYTHING POSSIBLE TO ASSURE THAT THE PROPER DOSE WAS | | DELIVERED TO THE TUMOR. THE IRIDIUM WAS REMOVED THURSDAY MORNING AUGUST | | 4TH, AT THE CALCULATED TIME. | | | | 3. FRIDAY MORNING AUGUST 5TH, I RETRIEVED THE CHEST X-RAY, AND REVIEWED | | THIS WITH DR. ECKER. THE IRIDIUM RIBBON WAS NOT VISIBLE. DR. ECKER | | POINTED OUT THAT IT IS NOT ALWAYS EASY TO SEE THE RIBBON. HE THEN POINTED | | TO THE POSITION ON THE X-RAY HE OBSERVED THE SEEDS TO BE WHEN EVALUATING | | THE CATHETER AND PATIENT THE NIGHT BEFORE, AND CONSIDERING THE LENGTH OF | | THE CATHETER REMAINING IN THE PATIENT UPON REMOVAL OF THE RIBBON THURSDAY | | MORNING. | | | | 4. THERE SEEMS TO BE A DISCREPANCY FROM INFORMATION PRESENTED TO ME AND | | WHAT IS DOCUMENTED IN THE CHART. SINCE THE RADIATION ONCOLOGIST IS ON | | VACATION PRESENTLY, ONE WOULD ACCESS THE TREATMENT LOCATION EITHER | | RADIOGRAPHICALLY, OR BY SOME PREVIOUSLY DOCUMENTED LANDMARKS ON THE | | CATHETER IN RELATIONSHIP TO NASAL ANATOMY. IT IS NOT VERY CLEAR TO ME AS | | TO HOW THE RADIATION ONCOLOGIST HAS ESTABLISHED THAT THE DOSE WAS DELIVERED | | TO THE INTENDED SITE. | | | | I WILL BE CONTACTING YOU BY PHONE CONFIRM YOU HAVE RECEIVED THIS FAX." END | | OF TEXT. | | | | THIS FACSIMILE WAS SUBMITTED BY THE RADIATION SAFETY OFFICER, MARY FOX, OF | | THE NORTH MEMORIAL MEDICAL CENTER OF ROBBINSDALE, MINNESOTA. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27675 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 08/15/94 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 19:05 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 08/15/94 | +------------------------------------------------+EVENT TIME: 18:55[EDT]| |NRC NOTIFIED BY: MCDONALD |LAST UPDATE DATE: 08/15/94 | |HQ OPS OFFICER: GREG SCARFO +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |GUS LAINAS EO | |NLCO TECH SPEC LCO A/S |LAUZONIS FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 STARTUP | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AN NOUE WAS DECLARED WHEN THE ROD POSITION INDICATION SYSTEM WAS DECLARED | | INOPERABLE AND SIX CONTROL RODS BECAME MISALIGNED DURING A STARTUP. A | | TECHNICAL SPECIFICATION (T/S)-REQUIRED SHUTDOWN OF THE UNIT WAS COMPLETED. | | | | AT 1855EDT, AN NOUE WAS DECLARED WHEN THE ROD POSITION INDICATION SYSTEM | | WAS DECLARED INOPERABLE AFTER SIX CONTROL RODS BECAME MISALIGNED BY GREATER | | THAN SIXTEEN STEPS DURING THE REACTOR STARTUP. THE CONTROL RODS AFFECTED | | ARE IN CONTROL BANK "C" AND INCLUDE RODS "10", "11", "12", "13", "31", | | "32", AND "33". AFTER OPERATORS ATTEMPTED TO RE-ALIGN THE AFFECTED RODS, | | T/S ACTION STATEMENT 3.1.3.2 WAS ENTERED AND A CONTROLLED PLANT SHUTDOWN | | WAS INITIATED. THE CAUSE OF THE MISALIGNMENT IS UNKNOWN AT THIS TIME BUT | | AN INVESTIGATION IS UNDERWAY. | | | | THE NOUE WAS TERMINATED AT 1920EDT WHEN THE UNIT WAS STABLE IN HOT STANDBY | | AND THE REACTOR TRIP BREAKERS WERE OPENED. STATE AND LOCAL AGENCIES WERE | | NOTIFIED. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27676 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 08/15/94 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 21:28 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/15/94 | +------------------------------------------------+EVENT TIME: 18:15[PDT]| |NRC NOTIFIED BY: ANDERSON |LAST UPDATE DATE: 08/16/94 | |HQ OPS OFFICER: GREG SCARFO +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES CAIN RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN 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 | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF 90% OF EMERGENCY SIRENS DUE TO A LOSS OF ELECTRICAL POWER TO THE | | COUNTY. | | | | 90% OF THE EMERGENCY SIRENS WERE DECLARED INOPERABLE WHEN THE LOSS OF TWO | | "MORRO BAY" 230KV LINES RESULTED IN A LOSS OF POWER TO THE COUNTY. LOCAL | | FIRES IN THE AREA OF THE PLANT (15-20 MILES) CAUSED THE LOSS OF THE TWO | | "MORRO BAY" LINES. IT IS EXPECTED THAT THE "MORRO BAY" LINES WILL BE | | RETURNED TO SERVICE WITHIN TWO OR THREE HOURS. THE LICENSEE INFORMED THE | | NRC RESIDENT INSPECTOR. | | | | HOO NOTE: ALSO, ONE OF THE "MORRO BAY" LINES IS ONE OF TWO OFFSITE POWER | | SOURCES FOR THE PLANT. THE OTHER, THE "MIDWAY LINE" (A 500KV | | LINE), IS STILL AVAILABLE AND IS NOT THREATENED BY THE FIRES. | | NO OTHER PLANT OPERATIONS HAVE BEEN AFFECTED BY THE FIRES. | | | | **** UPDATE AT 0327 EDT ON 08/16/94 BY DYE TAKEN BY ANDREWS **** | | THE LICENSEE CALLED TO REPORT THAT POWER HAD BEEN RESTORED TO THE SAN LUIS | | OBISPO AREA AND APPEARED TO BE STABLE AND RELIABLE. THIS MEANS THAT POWER | | HAS BEEN RESTORED TO THE SIRENS SO THEY ARE NOW CONSIDERED TO BE OPERABLE. | | | | HOWEVER, THE LICENSEE NOTED THAT THE ACTIVATION TRANSMITTER HAS NOT HAD | | POWER RESTORED AND IS OPERATING ON A BACKUP GENERATOR / BACKUP BATTERIES AT | | THIS TIME. THEY ARE WORKING TO RESTORE POWER TO THIS DEVICE. | | | | THE NRC RESIDENT INSPECTOR WILL BE NOTIFIED. | | | | HOO NOTIFIED R4DO (CAIN). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27677 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOK REGION: 3 |NOTIFICATION DATE: 08/16/94 | |UNIT: [ ] [2] [ ] STATE: MI |NOTIFICATION TIME: 00:38 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/15/94 | +------------------------------------------------+EVENT TIME: 23:50[EDT]| |NRC NOTIFIED BY: NED WOLLENSLEGEL |LAST UPDATE DATE: 08/16/94 | |HQ OPS OFFICER: THOMAS ANDREWS +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |THOMAS BURDICK RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |GUS LAINAS EO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION |DAN SULLIVAN FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | A/R Y 61 POWER OPERATION | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED --- LOSS OF ALL NORMAL FEEDWATER | | | | THE LICENSEE WAS OPERATING AT 61% RATED THERMAL POWER IN A NORMAL | | END-OF-CYCLE COASTDOWN WHILE OPERATORS WERE TROUBLESHOOTING A "D" BUS LOW | | VOLTAGE ALARM. THE OPERATORS SECURED THE "#21" CIRCULATING WATER PUMP, | | LEAVING THE REMAINING THREE CIRCULATING PUMPS OPERATING. AT THIS POWER | | LEVEL, THERE SHOULD HAVE BEEN ADEQUATE CIRCULATING WATER FLOW THROUGH THE | | MAIN FEED PUMP CONDENSER FROM THESE 3 REMAINING CIRCULATING WATER PUMPS. | | | | WHEN THE CIRCULATING WATER PUMP WAS TAKEN OUT OF SERVICE, MAIN FEED PUMP | | CONDENSER VACUUM DECREASED TO THE POINT WHERE BOTH MAIN FEED PUMPS TRIPPED | | ON LOSS OF VACUUM. MAIN CONDENSER VACUUM WAS NOT LOST. AT 2350 EDT ON | | 08/15/94, WHEN THE LEVEL IN THE "#3" STEAM GENERATOR DECREASED TO THE LOW | | LEVEL CONDITION (APPROXIMATELY 26%), THE REACTOR TRIPPED ON LOW LEVEL | | COINCIDENT WITH LOW FLOW IN THE "#3" STEAM GENERATOR. | | | | SYSTEM RESPONSE FOLLOWING THE TRIP WAS NORMAL. ALL RODS FULLY INSERTED | | AFTER THE TRIP. THERE WERE NO PRIMARY OR SECONDARY PORV OR SAFETY VALVE | | ACTUATIONS. THE MAIN TURBINE TRIPPED. ALL THE REACTOR COOLANT PUMPS | | REMAINED RUNNING THROUGHOUT THE EVENT. NORMAL OFFSITE POWER IS AVAILABLE | | AND THE DIESELS ARE IN STANDBY. NO SAFETY EQUIPMENT IS OUT OF SERVICE. | | AUXILIARY FEEDWATER ACTUATED AS DESIGNED (BOTH THE MOTOR DRIVEN PUMPS AND | | THE TURBINE DRIVEN PUMP STARTED) AND A FEEDWATER ISOLATION OCCURRED AS | | EXPECTED. STEAM GENERATOR WATER LEVEL IS BEING MAINTAINED USING THE | | AUXILIARY FEEDWATER SYSTEM. STEAM IS BEING DUMPED TO THE CONDENSER WITH | | THE CONDENSER SERVING AS THE HEAT SINK. | | | | THE LICENSEE NOTED THAT THE SOURCE RANGE DETECTORS ARE CONSIDERED TO BE | | FUNCTIONAL BUT NOT OPERABLE. THIS IS A RESULT OF THEM BEING ENERGIZED FOR | | APPROXIMATELY 30 MINUTES WHILE THE REACTOR WAS AT 100% RATED THERMAL POWER | | EARLIER IN THE CYCLE. THE LICENSEE STATED THAT THE READINGS FROM THE | | SOURCE RANGE DETECTORS APPEARED TO BE NORMAL AND WERE TRENDING AS EXPECTED. | | | | WHILE REVIEWING THE EVENT, THE LICENSEE DECLARED AN UNUSUAL EVENT BASED ON | | LOSS OF ALL NORMAL FEEDWATER AT 0035 EDT ON 08/16/94. BECAUSE AUXILIARY | | FEEDWATER HAD ACTUATED AND WAS MAINTAINING STEAM GENERATOR LEVEL, THE | | UNUSUAL EVENT WAS TERMINATED AT 0035 EDT ON 08/16/94. | | | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE LOSS OF MAIN FEED PUMP | | CONDENSER VACUUM BUT SPECULATES THAT BIOLOGICAL FOULING (ZEBRA MUSCLES) MAY | | HAVE CONTRIBUTED TO THIS EVENT. THE NRC RESIDENT INSPECTOR WILL BE | | NOTIFIED. STATE AND LOCAL OFFICIALS HAVE BEEN NOTIFIED. A PRESS RELEASE IS | | NOT PLANNED AT THIS TIME. | | | | HOO NOTE: THE LICENSEE CALLED AT 0308 TO UPDATE THIS EVENT TO REFLECT | | A 4 HOUR REPORTABLE REQUIREMENT FOR THE RPS ACTUATION. | | BECAUSE THERE WAS SIGNIFICANT OVERLAP BETWEEN THE TWO REPORTS, | | THE TEXT OF THE INITIAL NOTIFICATION WAS MODIFIED TO REFLECT | | THE UPDATED INFORMATION AS APPROPRIATE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27678 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 08/16/94 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 03:10 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 08/16/94 | +------------------------------------------------+EVENT TIME: 00:35[EDT]| |NRC NOTIFIED BY: CARL SMYERS |LAST UPDATE DATE: 08/16/94 | |HQ OPS OFFICER: THOMAS ANDREWS +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG 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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE NEW YORK DEPARTMENT OF ENVIRONMENTAL CONSERVATION WAS NOTIFIED BY A | | CONTRACTOR REGARDING THE FAILURE OF THE "31" FUEL OIL STORAGE TANK LEAK | | TEST. THERE IS NO OBSERVABLE LEAKAGE TO THE ENVIRONMENT. THE CALCULATED | | LEAKAGE IS 0.129 GALLONS PER HOUR. THE LEAK RATE SPECIFICATION IS 0.050 | | GALLONS PER HOUR. | | | | THE LICENSEE IS MAKING PREPARATIONS TO REVERIFY THE SYSTEM LINEUP TO | | REPERFORM THE TEST WITH THE CONTRACTOR. THE "31" EMERGENCY DIESEL | | GENERATOR IS ALREADY OUT OF SERVICE FOR MAINTENANCE SO THIS DOES NOT AFFECT | | THE OPERABILITY OF THE DIESEL AT THIS TIME. | | | | THE NRC RESIDENT INSPECTOR WILL BE NOTIFIED BY THE LICENSEE. NO OTHER | | NOTIFICATIONS ARE PLANNED AT THIS TIME. | +------------------------------------------------------------------------------+