U.S. Nuclear Regulatory Commission Operations Center Event Reports For 11/02/94 - 11/03/94 ** EVENT NUMBERS ** 27920 27973 27974 27975 27976 27977 27978 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27920 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 10/18/94 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 20:55 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 10/18/94 | +------------------------------------------------+EVENT TIME: 18:55[CDT]| |NRC NOTIFIED BY: MIKE ENTWISTLE |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |B. CLAYTON RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | 2 | N Y 97 POWER OPERATION | 97 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF PROTECTED AREA SECURITY LIGHTING. | | | | THE PROTECTED AREA PERIMETER LIGHTING WAS LOST AT 1855 CDT. COMPENSATORY | | ACTION WAS IMMEDIATELY TAKEN PER STATION PROCEDURES AND IN PLACE WITHIN | | SEVERAL MINUTES. THE SPECIFIC CAUSE IS UNKNOWN BUT HAS BEEN TRACED TO A | | TRIPPED 480 VOLT MCC BREAKER. ALL PERIMETER ALARM ZONES REMAINED | | FUNCTIONAL. | | | | THE RESIDENT INSPECTOR WILL BE NOTIFIED. | | | | *** RETRACTION FROM COMBS TO HUFFMAN AT 12:41 EST ON 11/2/94 *** | | INVESTIGATION REVEALED THAT ONLY ONE SECTION OF THE PROTECTED AREA SECURITY | | LIGHTING WAS AFFECTED. BECAUSE COMPENSATORY ACTIONS WERE TAKEN WITHIN 10 | | MINUTES, THE EVENT IS ONLY LOGGABLE AND NOT REPORTABLE. THIS RETRACTION HAS | | ALREADY BEEN DISCUSSED WITH NRC REGION III AND THE RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27973 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SEABROOK REGION: 1 |NOTIFICATION DATE: 11/02/94 | |UNIT: [1] [ ] [ ] STATE: NH |NOTIFICATION TIME: 09:50 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 09:24[EST]| |NRC NOTIFIED BY: McINTYRE |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANDERSON 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE REPORTED A CONDITION OUTSIDE OF THE PLANT DESIGN BASIS. | | | | "ON 10/31/94, ULTIMATE HEAT SINK COOLING TOWER PUMP SWP-110A WAS REMOVED | | FROM SERVICE FOR INSPECTION OF FLANGE BOLTS. INSPECTIONS ON 11/1/94 | | INDICATED THAT NUMEROUS BOLTS WERE SIGNIFICANTLY DEGRADED SUCH THAT THE | | PUMP MAY NOT HAVE BEEN ABLE TO MEET ITS SEISMIC DESIGN BASIS. AS A RESULT | | OF THE "A" PUMP CONDITION, THE REDUNDANT "B" PUMP WAS DECLARED INOPERABLE. | | THE "B" PUMP IS BEING REMOVED FROM SERVICE FOR INSPECTION AND REBUILD. THE | | "A" PUMP HAS BEEN REPLACED AND IS CURRENTLY OPERABLE." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27974 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HOPE CREEK REGION: 1 |NOTIFICATION DATE: 11/02/94 | |UNIT: [1] [ ] [ ] STATE: NJ |NOTIFICATION TIME: 11:10 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 08:52[EST]| |NRC NOTIFIED BY: POWELL |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANDERSON 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 +------------------------------------------------------------------------------+ | EMERGENCY DIESEL GENERATOR AUTO START DUE TO UNKNOWN CAUSE. | | | | THE LICENSEE REPORTED THAT THE "A" EMERGENCY DIESEL GENERATOR STARTED FOR | | NO APPARENT REASON. NO WORK OR SURVEILLANCES WERE BEING PERFORMED ON THE | | EDG OR ITS LOGIC SYSTEMS, AND NO RELAYS WERE FOUND TO BE TRIPPED. THE | | DIESEL WAS RUN FOR APPROXIMATELY 1 HOUR WHILE TROUBLESHOOTING ACTIVATES | | WERE PERFORMED, AT WHICH TIME IT WAS SHUT DOWN AND PLACED INTO STANDBY. | | | | THE LICENSEE WILL CONTINUE TROUBLESHOOTING ACTIVITIES, BUT HAS NOT FOUND A | | POTENTIAL CAUSE FOR THE AUTO START AT THIS TIME. THE RI HAS BEEN INFORMED. | | | | ***UPDATE @ 1704ET 11/02/94 BY DAVE POWELL TAKEN BY MACKINNON*** | | | | LICENSEE CONTINUED TO TROUBLESHOOT THE CAUSE OF THE AUTO START (INCLUDING | | INSTALLING RECORDERS ON INPUTS TO THE EDG START LOGIC AND MONITORING THE | | SOLID STATE LOGIC CIRCUIT PANELS USING VIDEO CAMERAS). THE LICENSEE | | REVIEWED THE ALARM CHRONOLOGY FROM THE COMPUTER WHICH MONITORS ALL THE | | INPUTS, AND FOUND EVERYTHING TO BE NORMAL. THE LICENSEE THEN PERFORMED THE | | NORMAL 31 DAY EDG SURVEILLANCE TEST WITH RECORDERS AND VIDEO CAMERAS STILL | | HOOKED UP, BUT NOTED NOTHING ABNORMAL. | | | | THE LICENSEE THEN INTERVIEWED ALL EMPLOYEES INVOLVED IN ACTIVITIES THAT | | COULD HAVE CAUSED THE EVENT. AN ELECTRICIAN WAS PREPARING TO TROUBLESHOOT | | AN ANNUNCIATOR IN THE EDG DIESEL ENGINE ANNUNCIATOR CABINET. HE HAD GONE | | INTO THE ANNUNCIATOR CABINET TO FIND THE RELAY THAT HE WAS GOING TO BE | | WORKING ON. HE HAD OPENED THE CABINET DOOR AND WAS HOLDING THE RELAY AND | | ITS WIRES MAKING SURE THAT HE HAD THE RIGHT RELAY AT ABOUT THE TIME THE EDG | | AUTO STARTED. HIS ELBOW WAS AT THE SAME HEIGHT AS THE MANUAL START RELAY | | FOR THE EDG. THE LICENSEE BELIEVES THAT THE MOST PROBABLE CAUSE OF THE EDG | | AUTO START IS THAT THE ELECTRICIAN ACCIDENTALLY BUMPED THE MANUAL ACTUATOR | | FOR THE RELAY. THE RI WAS INFORMED BY THE LICENSEE. R1DO (CLIFF ANDERSON) | | NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27975 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NINE MILE POINT REGION: 1 |NOTIFICATION DATE: 11/02/94 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 11:20 [ET]| |RX TYPE: [1] GE-2,[2] GE-5 |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 10:04[EST]| |NRC NOTIFIED BY: DAN BIERBRAUER |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFFORD ANDERSON 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 75 POWER OPERATION | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR SCRAM DURING SURVEILLANCE TESTING. | | | | THE FOLLOWING IS THE TEXT OF A FACSIMILE FROM THE LICENSEE REPORTING THIS | | EVENT: | | "THE PLANT WAS OPERATING AT APPROXIMATELY 75% POWER. A 1/2 SCRAM WAS | | MANUALLY INSERTED ON RPS CHANNEL #11 BY A CONTROL ROOM OPERATOR IN | | PREPARATION FOR THE I&C DEPARTMENT TO PERFORM A SCHEDULED SURVEILLANCE | | TEST. APPROXIMATELY ONE MINUTE LATER, A FULL SCRAM SIGNAL WAS RECEIVED. THE | | CAUSE OF THE SCRAM IS BELIEVED TO BE THE PERFORMANCE OF THE SURVEILLANCE BY | | THE I&C TECHNICIANS. INVESTIGATION INTO THE EVENT IS IN PROGRESS. | | | | AS A RESULT OF THE SCRAM, REACTOR WATER LEVEL EXCEEDED THE LOW LEVEL | | SETPOINT WHICH RESULTED IN THE FEED WATER PUMPS STARTING AND RUNNING IN THE | | HPCI MODE OF OPERATION. THIS WAS EXPECTED". END OF TEXT. | | | | THE PLANT IS STABLE AT 814 PSI AND COOLING DOWN BY DISCHARGING DECAY HEAT | | TO THE MAIN CONDENSER. NORMAL FEED WATER IS MAINTAINING WATER LEVEL. ALL | | RODS FULLY INSERTED DURING THE TRANSIENT. NO SAFETY RELIEF VALVES LIFTED. | | WATER LEVEL SHRANK FROM A NORMAL LEVEL OF 76" TO A LOW LEVEL OF 18" WHICH | | IS NOT UNCOMMON FOR THIS PLANT. THERE WERE NO COMPLICATIONS DURING THE | | TRANSIENT. | | | | THE LICENSEE DID NOTE THAT THERE WAS A PROBLEM WITH ONE OF THE FEEDWATER | | PUMPS FOLLOWING THE HPCI ACTUATION SIGNAL. THE #11 FEEDWATER PUMP WAS | | ALREADY RUNNING AND CONTINUED RUN AS REQUIRED AFTER THE HPCI SIGNAL. THE | | #12 FEED WATER PUMP SHOULD HAVE ALSO STARTED. SHORTLY AFTER THE HPCI | | SIGNAL, IT WAS NOTICED THAT THE #12 PUMP WAS NOT RUNNING. THE LICENSEE IS | | INVESTIGATING WHETHER THE PUMP FAILED TO START OR TRIPPED AFTER THE START | | SIGNAL. ALL OTHER SYSTEMS FUNCTIONED AS REQUIRED. | | THE NRC RESIDENT INSPECTOR HAS BEEN NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27976 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 11/02/94 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 12:17 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 10:50[CST]| |NRC NOTIFIED BY: R. TERMINI |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: | | |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 95 POWER OPERATION | 95 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR CORE ISOLATION COOLING (RCIC) DECLARED INOPERABLE. | | | | THE FOLLOWING IS THE TEXT OF A FACSIMILE REPORTING THIS EVENT: | | "DURING PLANT MAINTENANCE ON REACTOR CORE ISOLATION COOLING SUCTION FROM | | CONDENSATE STORAGE VALVE 2E51-F010, THE RCIC SUCTION WAS ALIGNED TO THE | | SUPPRESSION POOL PER SPECIAL PROCEDURE LLP 94-101. A SHIFTLY SPECIAL LOG | | CONDUCTED TO VERIFY RCIC SYSTEM FILL/VENT FOUND THE SYSTEM NOT FILLED AS | | REQUIRED. RCIC WATERLEG PUMP ALIGNMENT TO SUPPRESSION POOL SHOULD HAVE | | MAINTAINED SYSTEM FILL. | | | | RCIC WAS REMOVED FROM STANDBY OPERATION AND DECLARED INOPERABLE DUE TO LOSS | | OF SYSTEM FILL. AN INVESTIGATION TO DETERMINE CAUSE OF LOSS OF SYSTEM FILL | | IS IN PROGRESS." END OF TEXT. | | | | THE RESIDENT INSPECTOR HAS BEEN INFORMED. | | | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27977 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 11/02/94 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 16:44 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 16:30[EST]| |NRC NOTIFIED BY: ALBERT OLECHNOWICZ |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CLIFF ANDERSON 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 +------------------------------------------------------------------------------+ | "B" ENCLOSURE FILTRATION FAN FOUND TO BE BELOW DESIGN FLOW RATE DURING ITS | | 18 MONTH SURVEILLANCE TEST. | | | | DESIGN FLOW RATE OF THE "B" ENCLOSURE BUILDING FILTRATION FAN (F25B) IS | | 9000cfm. DURING ITS 18 MONTH SURVEILLANCE TEST "B" ENCLOSURE BUILDING | | FILTRATION (F25B) FLOW RATE WAS MEASURED AT 7892cfm & 7974cfm. TRAIN "A" & | | "B" ENCLOSURE BUILDING FILTRATION FANS ARE REQUIRED TO BE FULLY OPERABLE | | WHEN IN MODES 1,2,3, & 4 (DESIGN FLOW RATE OF AT LEAST 9000cfm PER FAN). | | LICENSE WILL PERFORM A SYSTEM FLOW CHECK TO FIND FLOW RESTRICTION. LICENSEE | | THINKS THAT ONE OR MORE OF THE SYSTEM DAMPERS IS NOT PROPERLY POSITIONED. | | TRAIN "A" ENCLOSURE BUILDING FILTRATION FAN IS FULLY OPERABLE. | | LAST REFUELING OUTAGE BOTH TRAIN "A" & "B" ENCLOSURE BUILDING FILTRATION | | FANS PASSED THEIR SURVEILLANCE TEST. LICENSEE NOTIFIED NEW LONDON COUNTY | | AND THE STATE OF CONNECTICUT OF THIS EVENT. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27978 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FT SAINT VRAIN REGION: 4 |NOTIFICATION DATE: 11/02/94 | |UNIT: [1] [ ] [ ] STATE: CO |NOTIFICATION TIME: 18:24 [ET]| |RX TYPE: [1] GA (GENERAL ATOMIC) |EVENT DATE: 11/02/94 | +------------------------------------------------+EVENT TIME: 15:50[MST]| |NRC NOTIFIED BY: STEVE SHAFER |LAST UPDATE DATE: 11/02/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DALE POWERS 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 N 0 DECOMMISSIONED | 0 DECOMMISSIONED | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | COLORADO DEPARTMENT OF HEALTH NOTIFIED THAT THE PH LIMIT AT THE OUTLET OF A | | DISCHARGE POND WAS EXCEEDED. | | | | COLORADO DEPARTMENT OF HEALTH WAS NOTIFIED BY THE LICENSEE THAT WATER WITH | | A PH OF 9.6 WAS RELEASED FROM THE OUTLET OF A DISCHARGE POND INTO THE SOUTH | | PLATTE RIVER (LIMIT REQUIRES PH TO BE LESS THAN OR EQUAL TO 9.0). THE PH | | INCREASE IS DUE TO BIOLOGICAL ACTIVITY IN THE POND. BASED ON CONVERSATIONS | | WITH REGION 4 (ROBERT EVANS), THIS WILL BE THE LAST TIME THAT THE LICENSEE | | WILL REPORT THIS TYPE OF EVENT TO THE NUCLEAR REGULATORY COMMISSION. | +------------------------------------------------------------------------------+