U.S. Nuclear Regulatory Commission Operations Center Event Reports For 02/09/95 - 02/10/95 ** EVENT NUMBERS ** 28346 28359 28360 28361 28362 28363 28364 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28346 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FARLEY REGION: 2 |NOTIFICATION DATE: 02/06/95 | |UNIT: [1] [2] [ ] STATE: AL |NOTIFICATION TIME: 20:26 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 02/06/95 | +------------------------------------------------+EVENT TIME: 18:30[CST]| |NRC NOTIFIED BY: CRONE |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MILT SHYMLOCK 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SOLID STATE PROTECTION SYSTEM (SSPS) TRAIN "A" DECLARED INOPERABLE FOR BOTH | | UNITS. | | | | AT 1830 CST THE LICENSEE DECLARED TRAIN "A" OF THEIR SSPS INOPERABLE FOR | | BOTH UNITS. THE SSPS's WERE DECLARED INOPERABLE BECAUSE A POSTULATED STEAM | | BREAK COULD CAUSE A SHORT IN THE TURBINE TRIP PROTECTION CIRCUITS, LEADING | | TO A LOSS OF POWER TO TRAIN "A" OF THE SSPS. THIS POSTULATED EVENT IS | | SIMILAR TO THOSE REPORTED BY NORTH ANNA ON 02/03/95 (SEE EVENT # 28331) AND | | DIABLO CANYON ON 02/01/95 (SEE EVENT # 28318). | | | | LICENSEE ENTERED TECHNICAL SPECIFICATIONS 3.3.1 AND 3.3.2 (FOR REACTOR TRIP | | CONDITION & ESF SYSTEM). BOTH TECH SPECs REQUIRE THAT TRAIN "A" SSPS BE | | REPAIRED WITHIN 6 HOURS OR THAT THE UNIT BE PLACED IN HOT STANDBY WITHIN | | THE FOLLOWING 6 HOURS. ALL ECCS SYSTEMS AND EDGs ARE FULLY OPERABLE IF | | NEEDED. | | | | LICENSEE WAS GRANTED A TEN DAY NOTICE OF ENFORCEMENT DISCRETION TO MODIFY | | THEIR SSPS SYSTEM. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | | | | * * * UPDATE AT 2128 ON 2/9/95 BY CRONE TAKEN BY WEAVER * * * | | FURTHER INVESTIGATION HAS REVEALED THAT A POSTULATED STEAM BREAK AT ANOTHER | | LOCATION IN THE TURBINE BUILDING COULD RENDER THE BRAVO CHANNEL SSPS | | INOPERABLE. THIS NEW LOCATION IS NEAR WHERE THE STEAM LINE EXITS THE | | TURBINE BUILDING. THIS EVENT WOULD BE TOTALLY INDEPENDENT OF THE EVENT | | DESCRIBED FOR THE ALPHA TRAIN. REGIONAL MANAGEMENT WAS INFORMED OF THIS | | INFORMATION DURING A CONFERENCE CALL WHICH TOOK PLACE AT 2000 ON THIS DATE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28359 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GRAND GULF REGION: 2 |NOTIFICATION DATE: 02/09/95 | |UNIT: [1] [ ] [ ] STATE: MS |NOTIFICATION TIME: 02:42 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 02/09/95 | +------------------------------------------------+EVENT TIME: 00:50[CST]| |NRC NOTIFIED BY: EHRHARDT |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |FLOYD CANTRELL 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAD ONE OF ITS EMERGENCY SIRENS TO ACTIVATE INADVERTENTLY. | | | | THE LICENSEE WAS NOTIFIED THAT ONE OF ITS EMERGENCY SIRENS ACTUATED | | AUTOMATICALLY FOR NO APPARENT REASON. THE CAUSE OF THE ACTUATION IS UNKNOWN | | AND BEING INVESTIGATED. THE SIREN WAS SECURED WITHIN 10 MIN. THE RI WAS | | INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28360 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 02/09/95 | |UNIT: [ ] [2] [ ] STATE: AL |NOTIFICATION TIME: 03:25 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 02/09/95 | +------------------------------------------------+EVENT TIME: 00:28[CST]| |NRC NOTIFIED BY: KNIGHT |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |FLOYD CANTRELL 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 +------------------------------------------------------------------------------+ | THE PLANT HAD A REACTOR SCRAM FROM 100% DUE TO A TURBINE TRIP. | | | | THE TURBINE TRIP WAS CAUSED BY A RELAY SENSING FOR AN ELECTRICAL FAULT IN | | THE MAIN GENERATOR FIELD. IT IS NOT KNOWN AT THIS TIME WHETHER OR NOT THE | | SENSED FAULT WAS VALID. A FOLLOWUP INVESTIGATION WILL DETERMINE THE CAUSE. | | ALL RODS FULLY INSERTED DURING THE SCRAM AND NO SAFETY RELIEF VALVE LIFTING | | WAS NOTED. PCIS GROUPS 2, 3, 6 AND 8 INITIATED AS EXPECTED DUE TO LOW | | REACTOR WATER LEVEL CAUSED BY THE SCRAM. WATER LEVEL WAS RECOVERED, USING | | THE FEEDWATER AND CRD SYSTEM, TO NORMAL RANGE. THE TURBINE TRIP CAUSED A | | RECIRCULATION PUMP TRIP ACTUATION. STANDBY GAS TREATMENT ACTUATION ALSO | | OCCURRED DUE TO LOW REACTOR WATER LEVEL. THE CONTROL ROOM EMERGENCY | | VENTILATION SYSTEM RECEIVED AN ACTUATION SIGNAL, BUT WAS ALREADY RUNNING AT | | THE TIME OF THE SCRAM DUE TO A SURVEILLANCE THAT WAS IN PROGRESS FOR | | VERIFYING ITS OPERABILITY. THE CURRENT HEAT SINK IS THE MAIN CONDENSER AND | | THERE WAS NO ECCS ACTUATION. THE RI WAS INFORMED. | | | | | | * * * UPDATE BY DON SMITH AT 1410 ON 2/9/95 TAKEN BY WEAVER * * * | | | | THE LICENSEE CALLED BACK TO CLARIFY SOME DISCREPENCIES THAT APPEARED IN THE | | ORIGINAL REPORT. THESE DIFFERENCES WERE POINTED OUT BY THE RESIDENT | | INSPECTOR. DURING THE TRANSIENT, ALL 9 BYPASS VALVES AND ALL 13 RELIEFS | | OPENED AS EXPECTED. ALL RELIEF VALVES CLOSED AND PRESSURE STABILIZED AT | | 930 PSIG, CONTROLLED BY THE BYPASS VALVES. THE PEAK PRESSURE RECORDED WAS | | 1130 PSIG. | | | | THE FAULT WAS DETERMINED TO BE A VALID GROUND SIGNAL CAUSED BY A LEAK IN | | THE STATOR COOLING WATER SYSTEM. THE HOO NOTIFIED THE RDO (CANTRELL). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28361 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 02/09/95 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 11:01 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 02/09/95 | +------------------------------------------------+EVENT TIME: 10:55[EST]| |NRC NOTIFIED BY: PINKOWITZ |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED A CONDITION WHERE AN EXPANSION JOINT ON THE SERVICE | | WATER INTO THE RECIRC SPRAY LINE WOULD NOT FUNCTION AS DESIGNED. | | | | THIS CONDITION WAS DISCOVERED ON 2/2/95 DURING A SYSTEM WALKDOWN AND IT | | REVEALED THAT THE BOLTS ON THE EXPANSION JOINTS ON ONE OF THE FOUR HEAT | | EXCHANGERS WERE INCORRECTLY INSTALLED. THIS TYPE OF INSTALLATION | | CONSTRAINED THE EXPANSION JOINT FROM EXPANDING OR CONTRACTING. THE | | CONDITION WAS CORRECTED BY 2/3/95. THEY BELIEVE THIS PROBLEM HAS EXISTED | | FOR SOME TIME AND DURING THAT PERIOD THE OTHER TRAIN HAS BEEN OUT OF | | SERVICE FOR MAINTENANCE. WITH THIS PROBLEM BOTH TRAINS MAY HAVE BEEN | | INOPERABLE. THE LICENSEE DETERMINED, 2/9/95, THAT THE EVENT SHOULD BE | | REPORTED. THE RI WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28362 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 02/09/95 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 14:23 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 02/09/95 | +------------------------------------------------+EVENT TIME: 14:14[EST]| |NRC NOTIFIED BY: JOE BERGIN |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | POTENTIAL FOR AN UNFILTERED RELEASE DURING A LOCA | | | | WHILE PERFORMING AN ENGINEERING REVIEW OF THE ENCLOSURE BUILDING FILTRATION | | AND CONTAINMENT SYSTEMS, THE LICENSEE DISCOVERED A POSTULATED SINGLE | | FAILURE THAT COULD RESULT IN A RELEASE NOT GOING THROUGH THE CHARCOAL | | FILTERS. THE POSTULATED FAILURE IS DAMPER 2AC-11 STICKING IN THE OPEN | | POSITION. NORMAL LEAKAGE INTO THE ENCLOSURE BUILDING DURING A LOCA COULD | | BYPASS THE CHARCOAL FILTERS IF THIS DAMPER WERE TO FAIL OPEN. | | | | THE LICENSEE NOTIFIED THE APPROPRIATE STATE AND LOCAL OFFICIALS. THE | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28363 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CATAWBA REGION: 2 |NOTIFICATION DATE: 02/09/95 | |UNIT: [1] [2] [ ] STATE: SC |NOTIFICATION TIME: 18:58 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/09/95 | +------------------------------------------------+EVENT TIME: 17:00[EST]| |NRC NOTIFIED BY: GARY CLEMENTS |LAST UPDATE DATE: 02/09/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |FLOYD CANTRELL 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 92 POWER OPERATION | 92 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION OF AN OIL SPILL | | | | SUBFREEZING WEATHER CAUSED A LEAK TO DEVELOP IN A FIRE SUPPRESSION PIPE. | | THE LEAK SPRAYED DOWN THE LOW PRESSURE SERVICE WATER INTAKE STRUCTURE WITH | | WATER, WASHING OIL RESIDUE INTO LAKE WYLIE. THE OIL RESIDUE MAY HAVE COME | | FROM MAINTENANCE ON A LOW PRESSURE SERVICE WATER PUMP. NO SAFETY RELATED | | SYSTEMS WERE AFFECTED. | | | | THE LICENSEE NOTIFIED THE RESIDENT INSPECTOR, APPROPRIATE STATE AND LOCAL | | OFFICIALS AS WELL AS THE NATIONAL RESPONSE CENTER. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28364 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: WESTINGHOUSE HANFORD |NOTIFICATION DATE: 02/10/95 | | CITY: RICHLAND REGION: 4 |NOTIFICATION TIME: 02:21 [ET]| | COUNTY: BENTON STATE: WA |EVENT DATE: 02/09/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 11:00[PST]| | DOCKET: |LAST UPDATE DATE: 02/10/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: NATIONAL RESPONCE CENTER | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE NATIONAL RESPONSE REPORTED THAT A FUEL TRUCK AT WESTINGHOUSE HANFORD | | HAD A LOOSE FITTING TO A TEMPERATURE HOUSING AND IT RELEASED ABOUT 4LBS OF | | ETHYLENE GLYCOL(50% WATER SOLUTION) TO THE GROUND AT THE FACILITY. THE SOIL | | WAS EXCAVATED AND ALL OF THE MATERIAL WAS RECOVERED. DOE AND EPA HAVE BEEN | | NOTIFIED BY THE NATIONAL RESPONSE CENTER. | +------------------------------------------------------------------------------+