U.S. Nuclear Regulatory Commission Operations Center Event Reports For 11/24/95 - 11/27/95 ** EVENT NUMBERS ** 29541 29637 29638 29639 29640 29641 29642 29643 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29541 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 11/01/95 | |UNIT: [ ] [ ] [3] STATE: IL |NOTIFICATION TIME: 18:32 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 15:30[CST]| |NRC NOTIFIED BY: STEVE KUCZYNSKI |LAST UPDATE DATE: 11/24/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 REFUELING | 0 REFUELING | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MOTOR CONTROL CENTER (MCC) 38-3 FEEDER BREAKER HAS INCORRECT TRIP SETTING | | | | THE BREAKER WHICH FEEDS MCC 38-3 HAS A LONG-TERM TRIP SETTING OF 400 AMPS. | | THE CORRECT SETTING IS 600 AMPS. THIS CONDITION HAD BEEN PREVIOUSLY | | IDENTIFIED AND SHOULD HAVE BEEN CORRECTED IN JUNE 1994. THE CONDITION WAS | | DISCUSSED IN LER 94-18. THIS PARTICULAR BREAKER TRIP SETPOINT WAS NOT | | PROPERLY RESET. AN INVESTIGATION IS UNDERWAY TO DETERMINE WHY THIS ERROR | | OCCURRED. | | PREPARATIONS ARE BEING MADE TO TAKE BALANCE OF PLANT LOADS OUT OF SERVICE | | TO PROVIDE MARGIN TO THE BREAKER TRIP SETTING. WORK IS SCHEDULED FOR | | 11/2/95 TO ADJUST THE TRIP SETPOINT. MCC 38-3 FEEDS VARIOUS MAIN TURBINE | | AUXILIARIES, UNIT 3 EMERGENCY DIESEL GENERATOR AUXILIARIES, AND CLOSED | | COOLING SERVICE WATER PUMP CUBICLE COOLER FANS. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | *** 11/24/95 @ 1030EST REPORTED BY BRILEY TAKEN BY MACKINNON*** | | | | LICENSEE IS RETRACTING THIS EVENT BECAUSE SUBSEQUENT TESTING HAS DETERMINED | | THAT THE MCC WOULD NOT HAVE TRIPPED PREMATURELY AND THUS WOULD HAVE | | PERFORMED ITS DESIGN FUNCTION. THEREFORE, UNIT 3 WAS NOT OUTSIDE OF ITS | | DESIGN BASIS. | | DUE TO THE FACT THAT THIS EVENT IS BASED ON A FAILURE TO IMPLEMENT | | CORRECTIVE ACTIONS FROM LER 94-18 A VOLUNTARY LER WILL BE SUBMITTED. | | R3DO (BRENT CLAYTON) NOTIFIED. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 29637 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: HARPER HOSPITAL |NOTIFICATION DATE: 11/24/95 | | CITY: DETROIT REGION: 3 |NOTIFICATION TIME: 11:27 [ET]| | COUNTY: WAYNE STATE: MI |EVENT DATE: 11/24/95 | |LICENSE#: 21-04127-06 AGREEMENT: N |EVENT TIME: 09:15[EST]| | DOCKET: |LAST UPDATE DATE: 11/24/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |BRENT CLAYTON RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: COLIN ORTON | | |HQ OPS OFFICER: LEIGH TROCINE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | BRACHYTHERAPY ADMINISTRATION OF 800 RADS OF STRONTIUM-90 TO THE WRONG SIDE | | OF A PATIENT'S LEFT EYE AT HARPER HOSPITAL LOCATED IN DETROIT, MICHIGAN | | | | A PATIENT WAS BEING TREATED WITH A STRONTIUM-90 EYE APPLICATOR FOR | | PTERYGIUM (A GROWTH OVER THE EYE WHICH CAUSES GRADUAL BLINDNESS) ON THE | | LEFT EYE. THE PRESCRIPTION WAS FOR THREE 800-RAD FRACTIONS LASTING 30 | | SECONDS EACH, AND IT STATED THAT THE TREATMENT SITE WAS THE LEFT EYE. | | THE PATIENT WAS TREATED ON THE LEFT EYE; HOWEVER, THE SECOND OF THE THREE | | TREATMENTS ACTUALLY OCCURRED ON THE LATERAL SIDE (OUTSIDE) OF THE LEFT EYE | | IN LIEU OF THE MEDIAL SIDE (INSIDE) OF THE LEFT EYE. THE ERROR WAS | | IMMEDIATELY REALIZED, AND THE CORRECT SIDE OF THE LEFT EYE WAS THEN | | TREATED. | | | | THE LICENSEE DOES NOT BELIEVE THAT THERE ARE ANY ADVERSE AFFECTS TO THE | | PATIENT AS A RESULT OF THIS EVENT, AND REMEDIAL CARE WILL NOT BE NEEDED. | | THE LICENSEE HAS ATTRIBUTED THIS EVENT TO PERSONNEL ERROR AND PLANS TO | | MODIFY ITS PROCEDURES TO INCLUDE THE NOSE ON THE DIAGRAM. IT IS BELIEVED | | THAT THE CHART MAY HAVE BEEN VIEWED UPSIDE DOWN. | | | | THE LICENSEE PLANS TO NOTIFY THE PATIENT AND THE REFERRING PHYSICIAN, AND | | THE LICENSEE HAS ALREADY NOTIFIED NRC REGION 3 (JOHN JONES). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |IRRETRIEVABLE WELL LOGGING SOURCE | |EVENT NUMBER: 29638 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: SLUMBERJAY |NOTIFICATION DATE: 11/25/95 | | CITY: REGION: 4 |NOTIFICATION TIME: 00:23 [ET]| | COUNTY: STATE: LA |EVENT DATE: 11/22/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 10:30[CST]| | DOCKET: |LAST UPDATE DATE: 11/25/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |BARNES RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: KEN TURNER | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |EIRR 39.77(c) WELL LOGGING SOURCE | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | WELL LOGGING SOURCE EVENT | | | | NAME OF WELL OWNER: HALL-HOUSTON CO. | | | | LOCATION OF THE WELL: OFFSHORE LOUISIANA | | | | WELL IDENTIFICATION: OCS-G15118 #1 | | | | ISOTOPE: AM-241 | | | | QUANTITY: 50 ęCi | | | | REQUEST FOR IMMEDIATE NRC APPROVAL TO BEGIN ABANDONMENT (Y/N): Y | | | | THE LICENSEE CALLED TO REQUEST NRC APPROVAL FOR ABANDONMENT OF A 50ęCi | | REFERENCE SOURCE, WHICH HAS BECOME STUCK AT A DEPTH OF 8372 FT. THE SOURCE | | BECAME STUCK ON 11/22/95 AT APPROXIMATELY 10:30 (CST), AND THE LICENSEE HAS | | BEEN UNABLE TO RECOVER IT. THE LICENSEE WISHES TO ENCASE THE SOURCE IN | | CONCRETE, AND THEN TO DRILL AROUND IT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29639 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 11/25/95 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 02:51 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 11/24/95 | +------------------------------------------------+EVENT TIME: 22:30[CST]| |NRC NOTIFIED BY: TANDERUP |LAST UPDATE DATE: 11/25/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BARNES 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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EMERGENCY CONTROL ROOM VENTILATION SYSTEM INOPERABLE. | | | | AT 1941 (CST) ON 11/22/95, THE LICENSEE TOOK THE DIVISION 2 EMERGENCY | | DIESEL GENERATOR OUT OF SERVICE FOR PERIODIC MAINTENANCE. THE EMERGENCY | | CONTROL ROOM VENTILATION SYSTEM AT COOPER IS A SINGLE DIVISION SYSTEM, AND | | HAD BEEN LINED UP TO THE DIVISION 2 EMERGENCY BUS. WHEN THE EDG WAS TAKEN | | OUT OF SERVICE, THE EMERGENCY CONTROL ROOM VENTILATION SYSTEM BECAME | | INOPERABLE. | | | | ON 11/24/95, A CONTROL ROOM OPERATOR QUESTIONED THE ELECTRICAL LINEUP OF | | THE EMERGENCY CONTROL ROOM VENTILATION SYSTEM, AND BY 1945 (CST) ON | | 11/24/95, THE SYSTEM HAD BEEN REALIGNED TO THE DIVISION 1 EMERGENCY BUS, | | WHICH HAD AN OPERABLE EMERGENCY DIESEL GENERATOR. THE LICENSEE DETERMINED | | THIS EVENT TO BE REPORTABLE AT 2230 (CST) ON 11/24/95. THE NRC RESIDENT | | INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29640 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 11/26/95 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 05:34 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 11/26/95 | +------------------------------------------------+EVENT TIME: 00:40[CST]| |NRC NOTIFIED BY: HITZEL |LAST UPDATE DATE: 11/26/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BARNES 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 N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE DISCOVERED INCORRECT WIRING IN CONTROL PANEL FOR EMERGENCY DIESEL | | GENERATOR. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | "AT COOPER NUCLEAR STATION, DURING THE COURSE OF DIESEL GENERATOR #2 | | SCHEDULED OVERHAUL, A DISCREPANCY WAS DETERMINED IN THE INTERNAL WIRING OF | | THE DG2 CONTROL PANEL. IT HAS BEEN DETERMINED THAT DURING INSTALLATION OF | | TWO FUSES (F13 AND F14) FOR A DESIGN CHANGE IMPLEMENTED IN AUGUST 1994, | | RELAYS REQUIRED FOR EMERGENCY DIESEL START WERE ERRANTLY CONNECTED TO THE | | LOAD SIDE OF FUSES F13 AND F14. | | | | THE TWO 1-AMP FUSES WERE DESIGNED TO APPENDIX R REQUIREMENTS TO ISOLATE | | FIVE CONTROL ROOM DG2 INDICATIONS ON ELECTRICAL DISTRIBUTION PANEL BOARD C. | | IN THE EVENT OF AN APPENDIX R FIRE IN THE CONTROL ROOM, EMERGENCY AND LOCAL | | START CAPABILITIES OF DG2 WOULD HAVE BEEN COMPROMISED. | | | | A HAND OVER HAND WALKDOWN WAS PERFORMED TO PROVIDE ASSURANCE THAT NO OTHER | | POWER DISTRIBUTION DISCREPANCIES EXIST. IN ADDITION, ANALYSIS OF AS-BUILT | | RESULTS WAS PERFORMED TO DETERMINE THE IMPACT OF PAST OPERABILITY. ALTHOUGH | | THE DG WOULD NOT HAVE STARTED IN AN APPENDIX R SCENARIO, ANALYSIS OF WORST | | CASE INRUSH CURRENTS TO FUSES F13 AND F14 HAS DETERMINED THAT DG2 WOULD | | HAVE STARTED AND OPERATED AS DESIGNED IN RESPONSE TO A NON-APPENDIX R | | EMERGENCY START SIGNAL. | | | | THE NOTED WIRING DISCREPANCIES WILL BE CORRECTED THROUGH AN AMENDMENT TO A | | DESIGN CHANGE CURRENTLY IN PROGRESS ON THE DG2 CONTROL SYSTEM PRIOR TO | | STARTUP FROM RE16." | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 29641 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GENERAL ELECTRIC CO. |NOTIFICATION DATE: 11/26/95 | | RXTYPE: URANIUM FUEL FABRICATION |NOTIFICATION TIME: 21:02 [ET]| |COMMENTS: LEU CONVERSION (UF6 TO UO2) |EVENT DATE: 11/26/95 | | LEU FABRICATION |EVENT TIME: 01:00[EST]| | LWR COMMERICAL FUEL |LAST UPDATE DATE: 11/26/95 | | CITY: WILMINGTON REGION: 2 +-----------------------------+ | COUNTY: NEW HANOVER STATE: NC |PERSON ORGANIZATION| |LICENSE#: SNM-1097 AGREEMENT: Y |MILTON SHYMLOCK RDO | | DOCKET: 07001113 |JOHN GREEVES EO | +------------------------------------------------+ | |NRC NOTIFIED BY: LON PAULSON | | |HQ OPS OFFICER: DOUG WEAVER | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GEOMETRY CONTROL FAILURE | | | | DURING A PLANNED INSPECTION OF THE REDCAP (RECLAIM ENRICHMENT DEGRADATION | | AND CONTROL PREVENTION) OXIDATION FURNACE, AT APPROXIMATELY 1:00 AM, ON | | NOVEMBER 26, 1995, 22 KILOGRAMS OF URANIUM BEARING MATERIAL WAS DISCOVERED. | | THE REDCAP FURNACE MUFFLE HAD CRACKED, ALLOWING UNOXIDIZED AMMONIUM | | DIURANATE (ADU) AND OXIDIZED HARDSCRAP (U3O8) TO ACCUMULATE OUTSIDE AND | | UNDERNEATH THE MUFFLE CHAMBER. | | | | GEOMETRY CONTROL WAS LOST AS A RESULT OF THIS ACCUMULATION. MODERATION | | CONTROL ON THIS MATERIAL REMAINED INTACT, THUS NO UNSAFE CONDITION EXISTED. | | THE MATERIAL WAS REMOVED WITHIN THE 4-HOUR CRITERIA, AND THE TWO CONTROLS | | REQUIRED FOR DOUBLE CONTINGENCY WERE REESTABLISHED. THE SAFE MASS LIMIT | | FOR THIS MATERIAL WAS 25.0 KG. | | | | A CHANGE REQUEST TO REPLACE THE MUFFLE HAS BEEN INITIATED AND AN INCIDENT | | INVESTIGATION IS UNDERWAY. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29642 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 11/27/95 | |UNIT: [1] [ ] [ ] STATE: AZ |NOTIFICATION TIME: 02:33 [ET]| |RX TYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 11/26/95 | +------------------------------------------------+EVENT TIME: 21:00[MST]| |NRC NOTIFIED BY: ECKLUND |LAST UPDATE DATE: 11/27/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BARNES 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | A/R Y 100 POWER OPERATION | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AUTOMATIC REACTOR TRIP FROM 35% POWER AND MAIN STEAM ISOLATION DUE TO HIGH | | STEAM GENERATOR WATER LEVEL. | | | | AT APPROXIMATELY 2100 MST, WITH THE UNIT OPERATING AT 100% POWER, THE MAIN | | TURBINE TRIPPED. THE TURBINE TRIP WAS DUE TO A LOW VACUUM CONDITION IN THE | | MAIN CONDENSER. A REACTOR POWER CUTBACK TO 35% WAS INITIATED UPON THE | | TURBINE TRIP. THE STEAM BYPASS CONTROL SYSTEM ACTUATED TO CONTROL STEAM | | GENERATOR PRESSURE; HOWEVER, DUE TO THE LOW CONDENSER VACUUM CONDITION, | | STEAM BYPASS CONTROL VALVES 1001 - 1006 WERE LOCKED OUT, LEAVING ONLY | | VALVES 1007 AND 1008 OPEN TO CONTROL PRESSURE. THIS RESULTED IN A | | SECONDARY SYSTEM PRESSURE INCREASE, CAUSING FOUR OF THE MAIN STEAM SAFETY | | VALVES TO OPEN. THE LARGE INCREASE IN STEAM FLOW CAUSED BY THE OPENING OF | | THE MAIN STEAM SAFETY VALVES CAUSED STEAM GENERATOR LEVELS TO SWELL, AND | | THE UNIT RECEIVED A REACTOR TRIP AND MAIN STEAM ISOLATION ON S/G #2 HIGH | | LEVEL AT 2107 MST. | | | | ALL CONTROL RODS INSERTED FOLLOWING THE TRIP, AND ALL SYSTEMS FUNCTIONED AS | | EXPECTED. OPERATORS MANUALLY INITIATED THE AUXILIARY FEEDWATER SYSTEM TO | | MAINTAIN STEAM GENERATOR WATER LEVELS. THE LICENSEE IS CURRENTLY | | INVESTIGATING THE CAUSE OF THE LOSS OF MAIN CONDENSER VACUUM. THE NRC | | RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | | | | * * * UPDATE 0607 11/27/95 * * * | | | | THE LICENSEE CALLED TO CORRECT INFORMATION PROVIDED IN THE INITIAL | | NOTIFICATION. THE REACTOR TRIP WAS CAUSED BY A HIGH LEVEL IN THE #1 STEAM | | GENERATOR, NOT THE #2 STEAM GENERATOR, AS HAD BEEN EARLIER REPORTED. | | NOTIFIED R4DO (BARNES). | | | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29643 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 11/27/95 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 04:55 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 11/27/95 | +------------------------------------------------+EVENT TIME: 01:49[CST]| |NRC NOTIFIED BY: BAILEY |LAST UPDATE DATE: 11/27/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLAYTON RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | |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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR CORE ISOLATION COOLING SYSTEM ISOLATION DUE TO PERSONNEL ERROR. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "DURING THE PERFORMANCE OF A SURVEILLANCE ON THE REACTOR CORE ISOLATION | | COOLING (RCIC) STEAM LINE FLOW INSTRUMENTATION, THE CONTROL ROOM OPERATOR | | FAILED TO RESET THE LOGIC PRIOR TO HAVING THE BREAKER FOR THE VALVE | | ENERGIZED. THIS RESULTED IN AN ESF SIGNAL TO AUTOMATICALLY CLOSE THE RCIC | | THE VALVE WAS REOPENED, AND THE SYSTEM ALIGNED FOR STANDBY OPERATION." | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+