U.S. Nuclear Regulatory Commission Operations Center Event Reports For 03/01/96 - 03/04/96 ** EVENT NUMBERS ** 30029 30039 30049 30050 30051 30052 30053 30054 30055 30056 30057 +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30029 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: NUCLEAR METALS, INC |NOTIFICATION DATE: 02/26/96 | | CITY: CONCORD REGION: 1 |NOTIFICATION TIME: 16:36 [ET]| | COUNTY: STATE: MA |EVENT DATE: 02/21/96 | |LICENSE#: SMB-179 AGREEMENT: N |EVENT TIME: 06:55[EST]| | DOCKET: 04000672 |LAST UPDATE DATE: 03/01/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |GLENN MEYER RDO | | |DONALD COOL, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: ERIC ANDERSON | | |HQ OPS OFFICER: DICK JOLLIFFE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - VENT FIRE LASTING LESS THAN ONE HOUR; NO RAD RELEASES OR CONTAMINATIONS - | | | | AT 0645 ON 02/21/96, LICENSEE STARTED THE LIQUID RADIOACTIVE WASTE | | PROCESSING SYSTEM. AT APPROXIMATELY 0655 ON 02/21/96, A FIRE STARTED | | INSIDE THE SYSTEM. LICENSEE PUT THE FIRE OUT WITHOUT OFFSITE ASSISTANCE IN | | LESS THAN ONE HOUR. ALL WORKERS RESPONDING TO THE FIRE WORE BREATHING ZONE | | AIR SAMPLERS, AND NO WORKERS RECEIVED INTAKES OF RADIOACTIVE MATERIALS. | | | | AFTER REVIEWING THE EVENT, LICENSEE DETERMINED THAT THE SYSTEM | | THERMOCOUPLES THAT HAD BEEN REPLACED THE PREVIOUS DAY APPARENTLY WERE | | THE CAUSE OF THE FIRE. LICENSEE DETERMINED THAT NO OFFSITE RADIATION | | RELEASES HAD OCCURRED AS A RESULT OF THE FIRE. | | | | LICENSEE NOTIFIED THE COMMONWEALTH OF MASSACHUSETTS OFFICIALS AND NRC | | REGION 1 OFFICIALS. REGION 1 MARIE MILLER AND RON BELLAMY ISSUED NRC | | PRELIMINARY NOTIFICATION #PN1-96-11 ON THIS EVENT ON 02/26/96. | | (SEE HOO LOG FOR CALLER'S TELEPHONE NUMBER.) | | | | * * * UPDATE AT 1526 EST ON 3/1/96, FROM ANDERSON TAKEN BY KARSCH * * * | | AN INSPECTION CLARIFIED SEVERAL ISSUES AS FOLLOWS: 1. THE FIRE BURNED FOR | | A TOTAL OF FIVE HOURS. 2. FIRE CREW WORE SELF CONTAINED BREATHING | | APPARATUSES. 3. BIO-ASSAY SAMPLES HAVE BEEN COLLECTED, BUT IT WILL BE | | SEVERAL WEEKS BEFORE DOSE RESULTS TO THE FIRE CREW ARE AVAILABLE. 4. | | ACTIVITY SAMPLES DURING AND AFTER THE FIRE SHOWED A FRACTION OF A DAC | | (DERIVED AIR CONCENTRATION). 5. AFTER FILTERING THE AIR, THE ROOM HAS | | BEEN RETURNED TO SERVICE. NO SIGNIFICANT ACTIVITY WAS NOTED. R1DO | | (RULAND) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30039 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FITZPATRICK REGION: 1 |NOTIFICATION DATE: 02/28/96 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 11:29 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 02/28/96 | +------------------------------------------------+EVENT TIME: 09:30[EST]| |NRC NOTIFIED BY: ART ZAREMBA |LAST UPDATE DATE: 03/03/96 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GLENN MEYER 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFETY-RELIEF VALVE PILOT SOLENOID LINES CONTAIN DEBRIS | | | | DURING A WALKDOWN OF THE DRYWELL, AN OPERATOR NOTED AN "AIR" LEAK ON THE | | "G" SRV PILOT SOLENOID VALVE. TROUBLESHOOTING LED TO THE DISCOVERY OF | | MINUTE DEBRIS FROM THE EXHAUST PORT OF THE PILOT VALVE. FURTHER INSPECTION | | OF THE REMAINING 10 PILOT VALVES REVEALED DEBRIS IN THE SUPPLY LINES TO | | FOUR OTHER VALVES. THE DEBRIS WAS CHARACTERIZED AS DARK, METALLIC AND VERY | | SMALL. | | | | THE LICENSEE ALSO DISCOVERED THAT ONE PILOT VALVE WOULD NOT OPERATE FROM | | THE CONTROL ROOM AND TWO OTHERS WOULD NOT OPERATE FROM THE REMOTE PANEL. IN | | EACH OF THESE THREE CASES, THE VALVES WERE OPERABLE FROM AT LEAST ONE | | LOCATION. THESE FAILURES WOULD NOT HAVE PREVENTED THE SAFETY FUNCTION OF | | THE SRVs. TWO OF THE THREE VALVES ARE PART OF THE AUTOMATIC | | DEPRESSURIZATION SYSTEM. IT IS NOT KNOWN WHETHER THE FAILURE OF THESE | | THREE PILOT VALVES TO OPERATE IS ASSOCIATED WITH THE DEBRIS PROBLEM | | MENTIONED ABOVE. | | | | THE LICENSEE'S CORRECTIVE ACTIONS ARE UNDER DEVELOPMENT. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE 1057 3/3/96 FROM ZAREMBA TAKEN BY STRANSKY * * * | | | | THE LICENSEE HAS DETERMINED THROUGH FURTHER TESTING THAT 4 OF THE 11 SRV | | PILOT SOLENOID VALVES WERE MALFUNCTIONING IN THAT THEY WOULD EITHER NOT | | OPEN UPON DEMAND OR NOT RESEAT AFTER DEENERGIZATION. THE LICENSEE STATED | | THAT THE SRVs THEMSELVES WERE WORKING PROPERLY. | | | | UPON DISASSEMBLY OF THE SOLENOID VALVES, THE LICENSEE DISCOVERED THAT THE | | SOLENOID PLUNGER LOCKNUT WAS LOOSE IN SEVERAL OF THE SOLENOID VALVES AND | | THAT THE NUT HAD BECOME DISPLACED ON TWO OF THE SOLENOID VALVES. | | ADDITIONALLY, LOCTITE HAD NOT BEEN APPLIED TO SOME OF THE SOLENOID PLUNGER | | LOCKNUTS AS REQUIRED. | | | | EVEN THOUGH FOUR SOLENOID VALVES HAD FAILED TO OPERATE PROPERLY, THE | | LICENSEE STATED THAT ONLY ONE SRV WOULD HAVE FAILED TO PERFORM ITS SAFETY | | FUNCTION AS A RESULT. THE LICENSEE HAS REBUILD OR REPLACED ALL ELEVEN SRV | | PILOT SOLENOID VALVES AND HAS PURGED THE AIR SUPPLY TO THE SRVs TO PREVENT | | FURTHER CLEANLINESS PROBLEMS. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED | | BY THE LICENSEE. NOTIFIED R1DO (RULAND). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30049 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 03/01/96 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 04:18 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 03/01/96 | +------------------------------------------------+EVENT TIME: 03:45[EST]| |NRC NOTIFIED BY: S SMITH |LAST UPDATE DATE: 03/01/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM RULAND RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 3 | N N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TWO OF THREE EMERGENCY DIESEL GENERATORS (EDGs) DECLARED INOPERABLE DUE TO | | LUBE OIL PROBLEM. | | | | AT APPROXIMATELY 0345ET, IT WAS DETERMINED THAT #32 EDG HAD HIGHER THAN | | NORMAL LUBE OIL TEMPERATURES, AND THE #32 EDG WAS DECLARED INOPERABLE. THE | | LICENSEE DID NOT KNOW THE EXACT TEMPERATURE OF THE LUBE OIL. EDG #33 IS | | CURRENTLY OUT OF SERVICE DUE TO A LUBE OIL SYSTEM CHECK VALVE PROBLEM, BUT | | IT IS IN THE PROCESS OF BEING TESTED FOR OPERABILITY AND IT SHOULD BE BACK | | IN SERVICE BY 0630ET. EDG #31 IS OPERABLE. THE LICENSEE IS IN TECHNICAL | | SPECIFICATION ACTION STATEMENT 3.7.b.1 (ONE DIESEL OR DIESEL FUEL OIL | | SYSTEM OR DIESEL ASSOCIATED FUEL OIL SYSTEM MAY BE INOPERABLE FOR UP TO 72 | | HOURS). TECHNICAL SPECIFICATIONS REQUIRE THAT TWO EDGs BE OPERABLE. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30050 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 03/01/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 09:20 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 03/01/96 | +------------------------------------------------+EVENT TIME: 09:12[EST]| |NRC NOTIFIED BY: D. HARRIS |LAST UPDATE DATE: 03/01/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BILL RULAND 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNANALYZED HEAVY LOAD PATH FOR MOVING THE GATES OUTSIDE THE SPENT FUEL | | POOL. | | | | DURING A PRE-JOB BRIEF FOR MOVING THE SPENT FUEL POOL GATES OUT OF THE | | POOL, IT WAS DETERMINED THAT THE LOAD PATH REQUIRED TO MOVE THE GATES | | OUTSIDE THE POOL WOULD BE OUTSIDE THE REQUIREMENTS OF MILLSTONE UNIT 1 | | PROCEDURE MP 790.4, "CONTROL OF HEAVY LOADS." SPECIFICALLY, THE GATE COULD | | BE SUSPENDED OVER IRRADIATED FUEL AND THE CONSEQUENCES OF A GATE LOAD DROP | | HAS NOT BEEN ANALYZED. | | | | THE PROCEDURE WAS DEVELOPED BACK IN THE EARLY 1980's IN ACCORDANCE WITH | | NUREG-0612 (CONTROL OF HEAVY LOADS). THE SPENT FUEL POOL WAS RERACKED IN | | 1988. THE RERACK MAY HAVE PUT THE RACKS CLOSE ENOUGH TO THE SPENT FUEL | | POOL WALLS SO THAT TOTAL COMPLIANCE WITH NUREG-0612 (CONTROL OF HEAVY | | LOADS) WITH THE CURRENT CONTROL OF HEAVY LOADS PROCEDURE (MP 790.4) MIGHT | | NOT BE POSSIBLE. | | | | THE LICENSEE WILL REVISE THE PROCEDURE TO BE IN COMPLIANCE WITH NUREG-0612. | | | | THE RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30051 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: LARPEN OF TEXAS |NOTIFICATION DATE: 03/01/96 | | CITY: HOUSTON REGION: 4 |NOTIFICATION TIME: 10:37 [ET]| | COUNTY: STATE: TX |EVENT DATE: 02/28/96 | |LICENSE#: L00074 AGREEMENT: Y |EVENT TIME: 00:00[CST]| | DOCKET: |LAST UPDATE DATE: 03/01/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |TOM STETKA RDO | | |FRED COMBS (NMSS) EO | +------------------------------------------------+ | |NRC NOTIFIED BY: R FREE | | |HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NAGR AGREEMENT STATE | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THREE RADIOGRAPHY CAMERAS MISSING. | | | | THE STATE OF TEXAS BUREAU OF RADIATION CONTROL IN AUSTIN WAS NOTIFIED BY | | ITS HOUSTON OFFICE THAT TWO CO-60 RADIOGRAPHY CAMERAS (43 CURIES AND 8.5 | | CURIES AS OF AUGUST 1994) AND ONE IR-192 RADIOGRAPHY CAMERA (SOURCE HAD | | COMPLETELY DECAYED AWAY BUT IT HAD A DEPLETED URANIUM SHIELD) WERE MISSING | | OR HAD BEEN STOLEN. | | | | THE LARPEN COMPANY FORMERLY LOCATED AT 3620 GILLESPI ST, HOUSTON, TEXAS, | | HAD OWNED THESE RADIOGRAPHY CAMERAS, BUT THEY WENT BANKRUPT LAST YEAR. IN | | MARCH OF 1995, THE BUREAU OF RADIATION CONTROL FOR THE STATE OF TEXAS HAD | | MOVED THE RADIOGRAPHY CAMERAS INTO A SHOOTING BAY AT THE LARPEN FACILITY | | FOR STORAGE. THIS BUILDING WAS DEMOLISHED THE WEEK OF FEBRUARY 19th OF | | THIS YEAR. DURING THE TIME PERIOD FROM MARCH OF 1995 TO FEBRUARY 28th OF | | THIS YEAR, THE THREE RADIOGRAPHY CAMERAS WERE EITHER STOLEN OR SCRAPPED. IF | | THEY HAD BEEN SCRAPPED, THEY WOULD PROBABLY HAVE BEEN SENT TO ONE OF THE | | FOLLOWING SCRAP YARDS: THE COMMERCIAL METAL SCRAP YARD OR THE PRE MET | | SCRAP YARD. BOTH SCRAP YARDS ARE LOCATED IN HOUSTON, AND THEY HAVE BEEN | | NOTIFIED THAT THEY MAY HAVE THE RADIOGRAPHY CAMERAS. THE STATE OF TEXAS | | BUREAU OF RADIATION CONTROL ALSO IS LOOKING FOR THE MISSING RADIOGRAPHY | | CAMERAS. REGION 4 (HACKNEY AND CHUCK CAIN) WERE NOTIFIED BY THE STATE OF | | TEXAS OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 30052 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: PUERTO RICO OPTHALMIC INSTITUTE |NOTIFICATION DATE: 03/01/96 | | CITY: MAYAGUEZ REGION: 2 |NOTIFICATION TIME: 15:32 [ET]| | COUNTY: MAYAGUEZ STATE: PR |EVENT DATE: 03/01/96 | |LICENSE#: 52-25114-01 AGREEMENT: N |EVENT TIME: 00:00[AT ]| | DOCKET: |LAST UPDATE DATE: 03/01/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |EDWARD MCALPINE RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: JOSE LUIS FERNANDEZ | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PUERTO RICO OPTHALMIC INSTITUTE, MAYAGUEZ, PR. | | TWO YEAR ON-GOING OVEREXPOSURE INVOLVING 71 PATIENTS DUE TO A | | MIS-CALIBRATED DEVICE. | | | | THE DEVICE IS A BETA APPLICATOR USING Sr-90 TO EXPOSE THE JUNCTION OF THE | | CORNEA AND THE SCLERA. THE MACHINE WAS CHECKED AND FOUND TO BE OFF BY MORE | | THAN 20% AND POSSIBLY DOUBLE THE INTENDED DOSE. THE PATIENTS ARE BEING | | CONTACTED. A SIMILAR DEVICE IN SAN JUAN HAS BEEN SENT FOR A CALIBRATION | | CHECK. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30053 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 03/01/96 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 15:45 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 03/01/96 | +------------------------------------------------+EVENT TIME: 15:40[EST]| |NRC NOTIFIED BY: JIM BROOKS |LAST UPDATE DATE: 03/01/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM RULAND 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 +------------------------------------------------------------------------------+ | SPDS (SAFETY PARAMETER DISPLAY SYSTEM) AND ALARM PRINTER OUT OF SERVICE FOR | | MORE THAN EIGHT HOURS. | | | | At 0740 EST, THE LICENSEE TOOK THE SYSTEM COMPUTER DOWN FOR MAINTENANCE AND | | WAS THEN UNABLE TO BRING IT BACK UP. THIS COMPUTER DRIVES THE ALARM | | PRINTER AND THE DATA DISPLAY SYSTEM. LOSS OF THIS SYSTEM REDUCES THE | | EMERGENCY ASSESSMENT CAPABILITY. THE LICENSEE EXPECTS TO RESTORE THE | | SYSTEM LATER TODAY. THE ROOT CAUSE IS UNDER INVESTIGATION. THE LICENSEE | | WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 2038 EST FROM BROOKS TAKEN BY KARSCH * * * | | THE COMPUTER FOR THE SPDS WAS RETURNED TO SERVICE AT 2035. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30054 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 03/01/96 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 17:47 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 03/01/96 | +------------------------------------------------+EVENT TIME: 17:44[EST]| |NRC NOTIFIED BY: AL OLECHNOWICZ |LAST UPDATE DATE: 03/01/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM RULAND RDO | |AINB 50.72(b)(2)(iii)(B) POT RHR INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TECH SPECS REQUIRE THAT AT LEAST ONE OPERABLE SERVICE WATER PUMP BE | | OPERABLE AT ALL TIMES (INCLUDING PROTECTION FROM FLOODS). IN THE PAST, THE | | LICENSEE HAS OPERATED WITH THE "A" SERVICE WATER PUMP IN OPERATION AND THE | | "B" AND "C" PUMPS INOPERABLE. THE "A" PUMP IS NOT FLOOD PROTECTED, SO THIS | | WAS A TECH SPEC VIOLATION. THE LICENSEE'S CORRECTIVE ACTION IS TO | | INSTITUTE PROCEDURAL CONTROLS TO ASSURE THAT EITHER THE "B" OR "C" PUMP IS | | OPERABLE AT ALL TIMES. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR | | AND STATE AND LOCAL GOVERNMENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30055 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 03/01/96 | |UNIT: [1] [ ] [ ] STATE: AZ |NOTIFICATION TIME: 21:24 [ET]| |RX TYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 03/01/96 | +------------------------------------------------+EVENT TIME: 18:40[MST]| |NRC NOTIFIED BY: BERT GRABO |LAST UPDATE DATE: 03/01/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |TOM STETKA 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 N 0 | 0 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE HAS FOUND CONDITIONS WHERE A FAILURE ON ONE TRAIN OF SAFETY | | EQUIPMENT WOULD AFFECT THE INDEPENDENT TRAIN. | | | | THE FOLLOWING NOTIFICATION WAS RECEIVED FROM THE LICENSEE: | | "CONTINUING REVIEW OF DEGRADED VOLTAGE CONDITIONS AT PALO VERDE NUCLEAR | | GENERATION STATION (PVNGS) IDENTIFIED A CONDITION THAT SHOWED PVNGS COULD | | BE OUTSIDE ITS DESIGN BASIS IN CERTAIN ACCIDENT SCENARIOS. THE POSTULATED | | ACCIDENT CONDITION IS A LIMITED RANGE OF MSLB BREAK SIZES, CONCURRENT WITH | | DEGRADED OFFSITE VOLTAGE CONDITIONS. NOTE: DEGRADED VOLTAGE CONDITIONS | | EXISTED FOR APPROXIMATELY SEVEN MINUTES DURING CALENDAR YEAR 1995. | | | | OUR DEGRADED VOLTAGE T.S. ACTION STATEMENT REQUIRES THAT A SINGLE TRAIN OF | | FBT (FAST BUS TRANSFER) BE BLOCKED WITHIN 1 HOUR WHICH RESTORES OPERABILITY | | OF THE OFFSITE POWER SOURCE TO ITS ASSOCIATED TRAIN. | | | | PVNGS HAS IDENTIFIED A SCENARIO WHEREIN IF THE A TRAIN IS BLOCKED, DEGRADED | | VOLTAGE CONDITIONS EXPERIENCED BY THE B TRAIN OF THE AFW SYSTEM MAY RESULT | | IN A COMPONENT FAILURE DURING THE DEGRADED VOLTAGE CONDITION (AFW FEED | | VALVES ARE UNABLE TO CLOSE) WHICH WILL IMPACT THE ABILITY TO ISOLATE THE | | FEEDWATER TO THE FAULTED GENERATOR. | | | | FAILURE OF THE B TRAIN OF AFW VALVES COULD RENDER THE A TRAIN AFW SYSTEM | | INOPERABLE DUE TO PREFERENTIAL FEEDING OF THE FAULTED S/G IN LIEU OF THE | | INTACT S/G. COMPENSATORY MEASURES ARE IN PLACE THAT SPECIFY BLOCKING BOTH | | TRAINS OF FBT AT THE ONSET OF DEGRADED VOLTAGE CONDITIONS. | | | | EXISTING T.S. ALLOW FOR PLACING EITHER TRAIN'S EDG ON ITS ASSOCIATED BUS | | AND DIVORCING THAT BUS FROM ITS OFFSITE SOURCE AND THEN UNBLOCKING FBT ON | | THAT SIDE. THIS ACTION ALLOWS MAINTENANCE OF FORCED CIRCULATION OF THE RCS | | POST TRIP." | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30056 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 03/03/96 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 13:44 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 03/03/96 | +------------------------------------------------+EVENT TIME: 10:30[EST]| |NRC NOTIFIED BY: GARY SCHIENDELMAN |LAST UPDATE DATE: 03/03/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM RULAND 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 88 POWER OPERATION | 88 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNANTICIPATED ISOLATION OF HIGH PRESSURE COOLANT INJECTION (HPCI) STEAM | | SUPPLY DURING SURVEILLANCE TESTING. | | | | DURING TESTING OF HPCI NUCLEAR STEAM SUPPLY SHUTOFF SYSTEM ISOLATION LOGIC | | PER ST-2-055-611-1, AN INADVERTENT HPCI STEAM SUPPLY OUTBOARD PRIMARY | | CONTAINMENT VALVE ISOLATION OCCURRED. THIS RESULTED IN RENDERING THE HPCI | | SYSTEM INOPERABLE. TESTING WAS SUSPENDED, AND THE ISOLATION LOGIC WAS | | RESET. THE HPCI SYSTEM WAS RESTORED TO OPERABLE STATUS AT 1146 EST. THE | | LICENSEE IS INVESTIGATING THE CAUSE OF THE ISOLATION. THE LICENSEE | | INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30057 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 03/03/96 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 14:19 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 03/03/96 | +------------------------------------------------+EVENT TIME: 14:08[EST]| |NRC NOTIFIED BY: AL OLECHNOWICS |LAST UPDATE DATE: 03/03/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM RULAND 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A VALVE REQUIRED TO CLOSE DURING A SAFETY INJECTION WAS REASSEMBLED WITH | | ITS DISK MISSING. | | | | VALVE 2SI618 IS A CLOSEABLE CHECK VALVE IN THE LOOP 1A COLD LEG INJECTION | | LINE. THE LICENSEE FOUND THAT ITS DISK WAS MISSING. DURING A SAFETY | | INJECTION, WHEN THE VALVE IS REQUIRED TO CLOSE, IT WOULD HAVE FAILED TO | | ISOLATE ITS ASSOCIATED FLOW PATH. THIS WOULD HAVE DIVERTED SOME INJECTION | | FLOW TO A DRAIN TANK VIA A ONE-INCH DIAMETER RELIEF VALVE. THIS VALVE WAS | | OVERHAULED DURING THE JANUARY 1995 REFUELING OUTAGE. PRESUMABLY, THE PLANT | | HAS OPERATED OUTSIDE ITS DESIGN BASIS SINCE THAT TIME. THE LICENSEE | | INFORMED THE NRC RESIDENT INSPECTOR AND STATE AND LOCAL GOVERNMENT. | +------------------------------------------------------------------------------+