U.S. Nuclear Regulatory Commission Operations Center Event Reports For 04/12/94 - 04/13/94 ** EVENT NUMBERS ** 27077 27078 27079 27080 27081 27082 27083 27084 27085 27086 27087 27088 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27077 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ARKANSAS NUCLEAR REGION: 4 |NOTIFICATION DATE: 04/11/94 | |UNIT: [1] [ ] [ ] STATE: AR |NOTIFICATION TIME: 22:04 [ET]| |RX TYPE: [1] B&W-L-LP,[2] CE |EVENT DATE: 04/11/94 | +------------------------------------------------+EVENT TIME: 20:41[CDT]| |NRC NOTIFIED BY: DAN STREBECK |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN PELLET RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION |JOHN ZWOLINSKI EO | | |JOE LOUZONIS FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED DUE TO ENTRY INTO EMERGENCY OPERATING PROCEDURES DUE | | TO EXCESSIVE POST TRIP COOLDOWN. | | | | A REACTOR TRIP OCCURRED FOR REASONS WHICH HAVE NOT YET BEEN DETERMINED. | | FOLLOWING THE REACTOR TRIP MAIN STEAM ISOLATION VALVES CLOSED ISOLATING | | BOTH OTSGs FOR REASONS WHICH HAVE NOT YET BEEN DETERMINED. WHILE COOLING | | DOWN THE OPERATORS ENCOUNTERED DIFFICULTIES WITH THE ATMOSPHERIC DUMP | | VALVES RESULTING IN OVER COOLING. THE INITIAL TEMPERATURE WAS 579 DEGREES. | | THE LOWEST TEMPERATURE REACHED WAS 522 DEGREES. AT THE TIME OF THE REPORT | | THE ATMOSPHERIC DUMP VALVES WERE CLOSED AND TEMPERATURE HAD RECOVERED TO | | 537 DEGREES. ALL CONTROL RODS INSERTED FULLY FOLLOWING THE TRIP. THE | | LICENSEE IS TRYING TO GAIN MANUAL CONTROL OF THE ATMOSPHERIC DUMP VALVES. | | THE NRC RESIDENT INSPECTOR IS IN THE UNIT 1 CONTROL ROOM OBSERVING THE | | EVENT. A CONFERENCE CALL ATTENDED BY NRR EO (ZWOLINSKI), R4DO (PELLET), R4 | | (BEECH & STETKA) TO DISCUSS THIS EVENT WAS HELD. | | | | * * * UPDATE AT 2355 EDT FROM CLINKINGBEARD TAKEN BY KARSCH * * * | | UNUSUAL EVENT TERMINATED AT 2255 CDT. THE PLANT HAS BEEN RESTORED TO | | NORMAL POST TRIP CONDITIONS. THE ENTRY CONDITIONS INTO THE EOPs NO LONGER | | EXIST. THE REACTOR WAS TRIPPED MANUALLY WHEN THE OPERATORS OBSERVED A | | FAILURE TO AN INSTRUMENT POWER SUPPLY WHICH INITIATED THE MSIV CLOSURE. | | HOO NOTIFIED R4D0 (PELLET) AND FEMA (EARL). | | ***UPDATE AT 0040 EDT ON 4/12/94 FROM STREBECK BY McGINTY*** | | THE LICENSEE CALLED AGAIN TO NOTIFY THE OPS CENTER OF THE UE TERMINATION. | | IT APPEARS THAT A LIGHTNING STRIKE, IN OR NEAR THE SWITCHYARD, WAS THE | | CAUSE OF THE INSTRUMENT PROBLEM AND THE MSIV CLOSURE (ON A SG PRESSURE | | <600# SIGNAL). THE LICENSEE NOTIFIED THE RESIDENT INSPECTOR, THE STATE, | | AND ANTICIPATES A PRESS RELEASE WILL BE ISSUED. | | | | ***UPDATE AT 14:14 BY VAN SHAIK TO GOULD*** THE LICENSEE IS RETRACTING THE | | NOUE CLASSIFICATION OF THIS EVENT SINCE IT WAS CONSERVATIVELY BASED ON | | UNCONTROLLED OTSG DEPRESSURIZATION(BELOW 600PSIG) RESULTING IN MAIN STEAM | | LINE ISOLATION(MSLI). AFTER A REVIEW THEY DETERMINED THAT THE MSLI WAS DUE | | TO POWER SUPPLY FAILURE FOR THEIR ELECTRONICS AND NOT DUE TO AN ACTUAL | | DEPRESSURIZATION. A DEPRESSURIZATION DID FOLLOW, BUT IT ONLY REACHED | | 725PSIG AND NOT 600PSIG. BASED ON THESE CONDITIONS THEY DID NOT REACH THE | | CRITERIA FOR DECLARING A NOUE BASED ON THEIR PROCEDURES. REG 4(PELLET) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27078 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 04/12/94 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 04:55 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 03:20[CDT]| |NRC NOTIFIED BY: NADEN |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM 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 +------------------------------------------------------------------------------+ | FLOODING OF ROADS INHIBITS ACCESS TO THE SITE. | | | | AT 0320 CDT, IT WAS DETERMINED THAT DUE TO HEAVY RAINS AND FLOODING, ACCESS | | TO THE PLANT VIA ROADWAYS IS NOT POSSIBLE. THIS IS AN EVENT THAT COULD | | RESULT IN AFFECTING THE OFF-SITE RESPONSE CAPABILITY OF THE EMERGENCY | | RESPONSE ORGANIZATION. | | | | AT THIS TIME, ALL THE ROADS HAVE NOT BEEN CONFIRMED TO BE IMPASSABLE, BUT | | IT IS HIGHLY SUSPECT THAT THEY ARE. HIGHWAY 54 HAS BEEN CONFIRMED TO BE | | CLOSED, AND NOBODY HAD ACCESSED THE PLANT VIA STATE ROUTE 10 DURING THE | | NIGHT. THE PLANT IS OPERATING NORMALLY, AND THE LEVELS OF THE NORTH FORK | | OF SALT CREEK POSE NO THREAT TO THE PLANT AND SHUTDOWN SERVICE WATER | | SYSTEMS OR THE CIRC WATER SYSTEM. | | | | THE LICENSEE INFORMED THE RESIDENT INSPECTOR. THE LICENSEE WILL BE | | UPDATING THE OPERATIONS CENTER AT 0800 EDT AT SHIFT TURNOVER IF IT DOES NOT | | TAKE PLACE. THERE IS CURRENTLY ADEQUATE STAFFING AT THE SITE FOR | | CONTINUING OPERATIONS. | | | | ** UPDATE DATE/TIME:4/12/94 @ 0745 EDT ***FROM LICENSEE:NADEN BY:McGINTY** | | THE LICENSEE REPORTED THAT LIMITED ACCESS TO THE PLANT, VIA BACKROADS, | | APPEARS TO BE AVAILABLE. THE STATE POLICE, HOWEVER, HAVE CLOSED OFF THE | | MAJOR ROADS PROVIDING ACCESS TO THE PLANT. THE LICENSEE SPECULATED THAT | | THE PRESENT CREW SHOULD BE ABLE TO BE RELIEVED SOMETIME EARLY IN THE DAY. | | HOO INFORMED R3DO (CANIANO). | | | | ** UPDATE DATE/TIME:4/12/94 @ 1026 EDT***FROM LICENSEE:DITTMAN BY:McGINTY** | | ENOUGH ROADS ARE ACCESSIBLE TO PERMIT NORMAL DAY-SHIFT STAFFING AND | | EMERGENCY RESPONSE ORGANIZATION STAFFING. THE RAIN HAS STOPPED AND THE | | ROAD FLOODING IS RECEDING. THE STATE POLICE HAS OPENED SOME OF THE MAJOR | | ROADS. THE LICENSEE WILL INFORM THE RESIDENT INSPECTOR. HOO NOTIFIED THE | | R3DO (CANIANO) AND AEOD (MacKINNON). | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27079 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 04/12/94 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 09:03 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 08:38[EDT]| |NRC NOTIFIED BY: BROOKS |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DAVID LEW RDO | |AINB 50.72(b)(2)(iii)(B) POT RHR INOP | | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 48 POWER OPERATION | 48 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT ENTERED A 7 DAY LCO ACTION STATEMENT DUE TO THE "A" LOOP OF CORE | | SPRAY BEING DECLARED INOPERABLE. | | | | THE PLANT WAS PERFORMING A SURVEILLANCE ON LOOP "A" OF CORE SPRAY AND WHEN | | THEY ATTEMPTED TO OPEN THE MIN-FLOW VALVE("CS-5A") ON THE CORE SPRAY PUMP, | | IT DID NOT STROKE. THEY THEN DISCOVERED SMOKE COMING FROM THE VALVE MOTOR, | | AND AT THAT POINT THEY DECLARED THE SYSTEM INOPERABLE, PUTTING THEM IN A | | LCO ACTION STATEMENT. THEY ARE INVESTIGATING THE CAUSE OF THE VALVE | | FAILURE. ALL OTHER ECCS SYSTEMS ARE OPERABLE. THE RI WAS NOTIFIED AND THE | | STATE WILL BE NOTIFIED. | | | | ** UPDATE DATE/TIME:4/12/94 @ 1017 EDT***FROM LICENSEE:BROOKS BY:McGINTY** | | THE LICENSEE IS RETRACTING THIS EVENT BASED ON FURTHER EVALUATION. SINCE | | ONLY ONE LOOP OF CORE SPRAY IS INOPERABLE, AND NOT THE ENTIRE SYSTEM (THE | | "B" LOOP REMAINS OPERABLE), THE EVENT IS NOT CONSIDERED TO BE REPORTABLE. | | THE LICENSEE WILL INFORM THE RESIDENT INSPECTOR. HOO INFORMED R1 (LEW). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27080 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CRYSTAL RIVER REGION: 2 |NOTIFICATION DATE: 04/12/94 | |UNIT: [3] [ ] [ ] STATE: FL |NOTIFICATION TIME: 11:38 [ET]| |RX TYPE: [3] B&W-L-LP |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 08:07[EDT]| |NRC NOTIFIED BY: CAMPBELL |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KERRY LANDIS 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 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DETERMINED THAT UNDER CERTAIN CONDITIONS THERE WOULD NOT BE | | SUFFICIENT VOLTAGE TO RELEASE THE BRAKE ON THE LIMITORQUE OPERATOR ON THE | | FEEDWATER ISOLATION VALVE. | | | | THIS WAS DISCOVERED DURING A PRELIMINARY REVIEW OF CALCULATION E-91-0018 | | (THIS LOOKED AT CONDITIONS WHEN THE VOLTAGE WOULD BE PULLED DOWN DURING THE | | LOADING OF ADDITIONAL EQUIPMENT ON THEIR SAFEGUARDS BUS) REV 1 WHICH | | INDICATED THAT DURING ACCIDENT CONDITIONS COINCIDENT WITH DEGRADED GRID | | CONDITIONS, THERE WILL NOT BE SUFFICIENT VOLTAGE(VOLTAGE COULD DROP TO 307 | | V) AT THE TERMINALS OF THE "FWV-28" VALVE. THIS COULD PROBABLY IMPEDE THE | | RELEASE(REQUIRES 345 V TO RELEASE) OF THE BRAKE ON THE LIMITORQUE OPERATOR | | OF THE "FWV-28" VALVE SO THAT IT WOULD NOT BE ABLE TO AUTOMATICALLY CLOSE | | ON A MAIN FEEDWATER ISOLATION SIGNAL. THE CORRECTIVE ACTION THAT THEY ARE | | INVESTIGATING WOULD BE TO DISABLE AND REMOVE THE BRAKE. THERE ARE OTHER | | VALVES IN THE LINE THAT COULD ISOLATE THE SYSTEM. THE RI WAS INFORMED | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27081 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HARRIS REGION: 2 |NOTIFICATION DATE: 04/12/94 | |UNIT: [1] [ ] [ ] STATE: NC |NOTIFICATION TIME: 11:42 [ET]| |RX TYPE: [1] W-3-LP |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 10:10[EDT]| |NRC NOTIFIED BY: COFFEE |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KERRY LANDIS 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A 3 TO 5 gpm NORMAL SERVICE WATER LEAK ON THE NORMAL SERVICE WATER BACKWASH | | VALVE WAS OBSERVED LEAKING INTO THE STORM DRAIN SYSTEM. THE STORM DRAIN | | SYSTEM IS NOT AN AUTHORIZED RELEASE POINT, SO THIS IS A VIOLATION OF THE | | STATE DISCHARGE PERMIT. NO ENVIRONMENTAL IMPACT HAS BEEN OBSERVED. THIS | | HAS BEEN REPORTED TO THE PROPER STATE AGENCIES. THE LICENSEE INFORMED THE | | RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27082 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 04/12/94 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 12:31 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 04/11/94 | +------------------------------------------------+EVENT TIME: 18:45[CDT]| |NRC NOTIFIED BY: DOUG BILLESBACH |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN PELLET 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 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTROL ROOM PRESSURE ENVELOPE INOPERABLE. | | | | THE LICENSEE PERFORMED A TEST OF THE INTEGRITY OF THE CONTROL ROOM PRESSURE | | ENVELOPE AFTER MAINTENANCE WAS COMPLETED ON A PRESSURE BOUNDARY DOOR. THE | | POST MAINTENANCE TESTING REVEALED THAT PRESSURE IN THE CABLE SPREADING ROOM | | WAS -0.01 INCHES OF WATER, WHEREAS THE ACCEPTANCE CRITERION IS POSITIVE | | PRESSURE. SINCE THE MAINTENANCE PERFORMED DID NOT AFFECT ANY DOOR SEALS, | | INVESTIGATION IS UNDERWAY TO DETERMINE THE CAUSE OF THE FAILURE. THE | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27083 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ROBINSON REGION: 2 |NOTIFICATION DATE: 04/12/94 | |UNIT: [2] [ ] [ ] STATE: SC |NOTIFICATION TIME: 13:08 [ET]| |RX TYPE: [2] W-3-LP |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 12:30[EDT]| |NRC NOTIFIED BY: DAVID CROOK |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CAUDLE JULIAN RDO | |AENS 50.72(b)(1)(v) ENS INOPERABLE | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | EMERGENCY SIRENS OUT OF SERVICE. | | | | SCHEDULED TESTING DETERMINED THAT TWELVE OF FORTY-FIVE EMERGENCY | | NOTIFICATION SIRENS WITHIN THE TEN MILE EPZ WERE OUT OF SERVICE. A ROUTINE | | ALERTING PROCESS VIA LOCAL GOVERNMENT AGENCIES IS IN PLACE AS BACK-UP FOR | | THE INOPERABLE SIRENS. THE LICENSEE IS IN THE PROCESS OF RESTORING THE | | SIRENS TO OPERABLE STATUS. THE AFFECTED COUNTIES HAVE BEEN NOTIFIED. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27084 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 04/12/94 | |UNIT: [ ] [2] [ ] STATE: AL |NOTIFICATION TIME: 14:39 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 03/14/94 | +------------------------------------------------+EVENT TIME: 08:00[CDT]| |NRC NOTIFIED BY: DON SMITH |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CAUDLE JULIAN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EVENT REPORTED AFTER THE FACT DUE TO AN NRC INSPECTION REPORT. (REPORT | | 50-259,260&296-01 DATED 3/14/94). | | | | DIESEL GENERATORS 1/2A AND 3D WERE SIMULTANEOUSLY DECLARED INOPERABLE DUE | | TO UNRELATED PROBLEMS. THIS CONDITION RESULTED IN TWO TRAINS OF STANDBY | | GAS TREATMENT SYSTEM (SBGTS) BEING INOPERABLE. TWO TRAINS OF SBGTS | | INOPERABLE COULD PREVENT THE FULFILLMENT OF SAFETY FUNCTIONS NEEDED TO | | MITIGATE THE CONSEQUENCES OF AN ACCIDENT, A FOUR HOUR REPORT. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27085 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 04/12/94 | |UNIT: [ ] [2] [ ] STATE: AL |NOTIFICATION TIME: 14:39 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 01/04/94 | +------------------------------------------------+EVENT TIME: 16:15[CDT]| |NRC NOTIFIED BY: DON SMITH |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CAUDLE JULIAN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EVENT REPORTED AFTER THE FACT DUE TO AN NRC INSPECTION REPORT. (REPORT | | 50-259,260&296-01). | | | | TWO INCIDENTS OF NONCOMPLIANCE WITH APPENDIX R WERE IDENTIFIED: | | 1. "IT WAS DETERMINED THAT A LACK OF ISOLATION CAPABILITY OF THE REACTOR | | WATER CLEANUP (RWCU) SYSTEM EXISTED IF A FIRE WERE TO OCCUR IN FIRE ZONE | | 2-4 AND FIRE AREA 16. THE POWER SUPPLY CABLES TO THE REDUNDANT RWCU | | PRIMARY CONTAINMENT ISOLATION VALVES WERE FOUND LOCATED WITHIN TWENTY FEET | | OF EACH OTHER AND NOT ADEQUATELY PROTECTED BY A FIRE BARRIER." | | | | 2. THE POWER SUPPLY CABLES TO THE 1D RAW COOLING WATER PUMP WERE NOT | | ADEQUATELY SEPARATED FROM THE SAFETY RELATED 4KV SHUTDOWN BOARD A. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27086 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 04/12/94 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 18:20 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 16:34[CDT]| |NRC NOTIFIED BY: TIM KOLB |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 97 POWER OPERATION | 97 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EMERGENCY DIESEL GENERATORS (EDGs) COULD BE RENDERED INOPERABLE BY A SINGLE | | FAILURE, OVER ROTATION OF THE CONTROL POWER SWITCH TO A POSITION BEYOND ITS | | NORMAL OPERATING RANGE. | | | | THE LICENSEE OBSERVED THAT THE "STOP LIGHT" FOR ONE OF THEIR EDGs WAS | | DEENERGIZED AND INVESTIGATED THE CAUSE. THEY DETERMINED THAT THE | | "LOCAL-REMOTE" CONTROL POWER SWITCH WAS OVER ROTATED PAST THE "REMOTE" | | POSITION. IN THAT POSITION THE EDG WOULD NOT HAVE STARTED ON AN AUTO-START | | SIGNAL. THE SWITCH WAS RETURNED TO THE "REMOTE" POSITION PER THE EDG | | STANDBY LINEUP PROCEDURE, "QC OP-6600-1". THE LICENSEE IS PERFORMING AN | | OPERABILITY RUN. THE UNIT 1 EDG'S CONTROL POWER SWITCH HAS THE SAME | | FEATURE. IT CAN ALSO BE ROTATED PAST ITS NORMAL POSITIONS INTO THE | | TWILIGHT ZONE. THE EDG IS MANUFACTURED BY GENERAL MOTORS, 20 CYLINDER | | MODEL 645E4. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 2209 EDT FROM HOUZENGA TAKEN BY KARSCH * * * | | THE LICENSEE IS RETRACTING THIS EVENT NOTIFICATION. THEIR REVIEW | | DETERMINED THAT THE SWING DIESEL, EDG 1/2, WOULD HAVE STARTED (EVEN THOUGH | | IT HAS THE SAME KIND OF SWITCH, IT WASN'T MISPOSITIONED). THE ACCIDENT | | MITIGATION SAFETY FUNCTIONS WOULD HAVE BEEN FULFILLED, THEREFORE IN THE | | LICENSEE'S OPINION, NO REPORTABLE EVENT OCCURRED. THE LICENSEE INFORMED | | THE NRC RESIDENT INSPECTOR. R3DO (CANIANO) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27087 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 04/12/94 | |UNIT: [ ] [2] [3] STATE: IL |NOTIFICATION TIME: 20:09 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 18:10[CDT]| |NRC NOTIFIED BY: JOE WELCH |LAST UPDATE DATE: 04/12/94 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N N 0 REFUELING | 0 REFUELING | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) ROOM COOLER FANS MAY NOT START | | DURING A DEGRADED VOLTAGE CONDITION. | | | | DURING REVIEWS OF ENGINEERING CALCULATIONS IN RESPONSE TO AN NRC REGION 3 | | INSPECTION (ENTS 94-003), IT WAS DISCOVERED THAT UNIT 2 & 3 HPCI ROOM | | COOLER FANS MAY NOT START DUE TO INSUFFICIENT VOLTAGE DURING A DEGRADED | | VOLTAGE CONDITION. HPCI ROOM COOLER FANS ARE REQUIRED TO FUNCTION IN THE | | EVENT OF A DESIGN BASIS LOSS OF COOLANT ACCIDENT. NINETY-EIGHT VOLTS IS | | REQUIRED TO START THE ROOM COOLER FANS, AND ONLY EIGHTY-SEVEN VOLTS IS | | POSTULATED TO BE AVAILABLE FOR A START IN A DEGRADED VOLTAGE CONDITION. | | UNIT 2 ROOM COOLER WAS STARTED AND WILL CONTINUE TO RUN UNTIL A RESOLUTION | | TO THE CONDITION IS IMPLEMENTED. UNIT 3 IS IN A REFUELING AND HPCI IS NOT | | REQUIRED. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27088 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ZION REGION: 3 |NOTIFICATION DATE: 04/13/94 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 00:16 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 04/12/94 | +------------------------------------------------+EVENT TIME: 22:25[CDT]| |NRC NOTIFIED BY: OBEREMBT |LAST UPDATE DATE: 04/13/94 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROY CANIANO RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTRACTOR DISCOVERED UNESCORTED FOR 15 MINUTES IN THE PROTECTED AREA. | | COMPENSATORY MEASURES WERE IMMEDIATELY TAKEN. THE LICENSEE WILL INFORM THE | | NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+