U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/24/96 - 09/25/96 ** EVENT NUMBERS ** 31004 31045 31049 31050 31051 31052 31053 31054 31055 31056 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31004 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 09/14/96 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 03:19 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 09/13/96 | +------------------------------------------------+EVENT TIME: 20:30[EDT]| |NRC NOTIFIED BY: ANDY WISNIEWSKI |LAST UPDATE DATE: 09/24/96 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |FRANK COSTELLO RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | - EDG OUTPUT BREAKER MAY HAVE BEEN INOPERABLE FOR THE LAST 25 DAYS - | | | | AT 2030 ON 09/13/96, THE LICENSEE DISCOVERED THREE BOLTS ON THE FLOOR NEAR | | THE OUTPUT BREAKER OF 1 OF 2 EDGs (#1-1A). THE BREAKER WAS OPEN AND ITS | | CLOSING SPRINGS WERE DISCHARGED. TWO OF THE BOLTS CAME FROM THE SPRING | | CHARGING MOTOR; THE SOURCE OF THE THIRD BOLT IS TO BE DETERMINED. THE | | LICENSEE RACKED DOWN THE BREAKER, TAGGED IT OUT TO PREVENT DISTURBANCE OF | | THE AS-FOUND CONDITIONS, AND DECLARED THE BREAKER AND THE EDG INOPERABLE. | | | | WITH THE BREAKER OPEN AND ITS CLOSING SPRINGS DISCHARGED, THE BREAKER CAN | | NOT BE CLOSED EITHER ELECTRICALLY (REMOTE OPERATION) OR MANUALLY (LOCAL | | OPERATION). | | | | THE LICENSEE BELIEVES THAT THIS BREAKER COULD HAVE BEEN INOPERABLE SINCE | | THE LAST TECH SPEC SURVEILLANCE TEST WAS PERFORMED ON THE BREAKER ON | | 08/19/96 WHILE THE PLANT WAS AT 91% POWER. | | | | THE PLANT WAS SHUTDOWN FOR A REFUELING OUTAGE ON 09/06/96. | | | | TECH SPEC LCO A/S 3.5.H.3 PROHIBITS ANY ACTIVITIES THAT HAVE THE POTENTIAL | | TO DRAIN THE REACTOR VESSEL. | | | | THE LICENSEE IS INVESTIGATING THIS SITUATION. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE 1911 9/24/96 FROM HENRIQUEZ TAKEN BY STRANSKY * * * | | | | THE LICENSEE IS RETRACTING THIS NOTIFICATION. UPON FURTHER EVALUATION, THE | | LICENSEE HAS DETERMINED THAT THIS FAILURE MODE WAS UNIQUE, AND DOES NOT | | AFFECT OTHER BREAKERS AT THE PLANT. THE NRC RESIDENT INSPECTOR WILL BE | | INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 31045 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: DEPARTMENT OF VETERANS AFFAIRS |NOTIFICATION DATE: 09/23/96 | | CITY: MEMPHIS REGION: 2 |NOTIFICATION TIME: 15:01 [ET]| | COUNTY: SHELBY STATE: TN |EVENT DATE: 09/23/96 | |LICENSE#: 41-00119-08 AGREEMENT: Y |EVENT TIME: 12:00[EDT]| | DOCKET: |LAST UPDATE DATE: 09/24/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |THOMAS DECKER RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: C. BRANNON | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MEDICAL MISADMINISTRATION AT VA MEDICAL CENTER IN MEMPHIS, TN | | | | A PATIENT WAS INADVERTENTLY GIVEN A SECOND 20 mCi DOSE OF Tc-99m AS PART OF | | A BONE SCAN. THE PATIENT HAD ARRIVED SEVERAL HOURS EARLY FOR HIS | | APPOINTMENT, AND HAD BEEN INJECTED WITH A 20 mCi DOSE OF Tc-99m. TWO HOURS | | LATER (THE TIME OF HIS SCHEDULED APPOINTMENT), HE RETURNED TO HAVE THE SCAN | | READ. HOWEVER, INSTEAD OF READING THE SCAN, THE TECHNICIAN INJECTED THE | | PATIENT WITH A SECOND 20 mCi DOSE OF Tc-99m. THE LICENSEE PLANS TO CONTACT | | THE NRC REGION 2 OFFICE REGARDING THIS EVENT. | | | | * * * UPDATE 1633 9/24/96 FROM BRANNON TAKEN BY STRANSKY * * * | | | | THE LICENSEE IS RETRACTING THIS NOTIFICATION. UPON FURTHER REVIEW AND | | DISCUSSION WITH THE NRC REGION 2 OFFICE, THE LICENSEE HAS DETERMINED THAT | | THIS EVENT WAS NOT REPORTABLE. NOTIFIED R2DO (SHYMLOCK). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31049 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: TURKEY POINT REGION: 2 |NOTIFICATION DATE: 09/24/96 | |UNIT: [3] [ ] [ ] STATE: FL |NOTIFICATION TIME: 03:52 [ET]| |RX TYPE: [3] W-3-LP,[4] W-3-LP |EVENT DATE: 09/24/96 | +------------------------------------------------+EVENT TIME: 03:11[EDT]| |NRC NOTIFIED BY: KRIS MILLER |LAST UPDATE DATE: 09/24/96 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS DECKER RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N Y 100 POWER OPERATION | 65 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TWO CONTROL RODS HAVE DROPPED INTO THE CORE | | | | ONE CONTROL ROD (F-12) FROM BANK "C" DROPPED INTO THE CORE AT 0255. WHILE | | FOLLOWING THE OFF NORMAL PROCEDURE FOR A DROPPED ROD, A SECOND ROD (K-4) | | DROPPED AT 0311. THE SECOND ROD WAS ALSO FROM BANK "C". BANK "C" IS A | | CONTROL BANK. THIS PLACED THE UNIT IN A SIX HOUR SHUTDOWN LCO. THE UNIT | | IS CURRENTLY BEING BORATED OFF LINE. ONCE POWER IS SUFFICIENTLY REDUCED | | AND THE MAIN TURBINE TRIPPED, THE CONTROL RODS WILL BE FULLY INSERTED. | | | | THE CAUSE OF THE DROPPED RODS IS NOT KNOWN, BUT IS UNDER INVESTIGATION. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 31050 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: NC STATE DIVISION OF RAD PROTECTION |NOTIFICATION DATE: 09/24/96 | | CITY: REGION: 2 |NOTIFICATION TIME: 14:55 [ET]| | COUNTY: BRUNSWICK STATE: NC |EVENT DATE: 09/23/96 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[EDT]| | DOCKET: |LAST UPDATE DATE: 09/24/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |SHYMLOCK RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: LEE COX | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NAGR AGREEMENT STATE | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AGREEMENT STATE REPORT | | | | THE NORTH CAROLINA STATE DIVISION OF RADIATION PROTECTION WAS NOTIFIED THAT | | A SHIPMENT OF SCRAP METAL SET OFF A PORTAL ALARM AT THE SOUTHERN METALS | | RECYCLING CENTER. A REPRESENTATIVE OF BRUNSWICK COUNTY RESPONDED, AND | | DISCOVERED THAT THE ALARM WAS CAUSED BY A 10 FOOT ROLL OF SCREEN WIRE THAT | | HAD BEEN SHIPPED FROM THE REGALWOOD PAPER COMPANY. THE ROLL WAS READING | | 200æR/HR ON CONTACT. THE SCREEN WIRE IS BEING RETURNED TO THE SHIPPER. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 31051 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: NC STATE DIVISION OF RAD PROTECTION |NOTIFICATION DATE: 09/24/96 | | CITY: SANFORD REGION: 2 |NOTIFICATION TIME: 15:42 [ET]| | COUNTY: LEE STATE: NC |EVENT DATE: 09/24/96 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[EDT]| | DOCKET: |LAST UPDATE DATE: 09/24/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |SHYMLOCK RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: HIGHTOWER | | |HQ OPS OFFICER: BOB STRANSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NAGR AGREEMENT STATE | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AGREEMENT STATE REPORT | | | | THE NORTH CAROLINA STATE DIVISION OF RADIATION PROTECTION WAS NOTIFIED OF | | AN APPARENT MEDICAL MISADMINISTRATION AT THE CENTRAL CAROLINA HOSPITAL. ON | | SEPTEMBER 11, A PATIENT WAS INJECTED WITH MDP (A CHEMICAL TRACER USING | | Tc-99m) AND WAS IMAGED FOR A BONE SCAN. UPON IMAGING, THE TECHNICIAN | | DISCOVERED THAT THE UPTAKE WAS NOT AT THE BONE, BUT WAS AT THE KIDNEY. THE | | HOSPITAL BELIEVES THAT THE WRONG DOSE WAS DELIVERED FROM THE PHARMACY. THE | | STATE WILL INVESTIGATE THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31052 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 09/24/96 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 16:16 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 09/24/96 | +------------------------------------------------+EVENT TIME: 16:06[EDT]| |NRC NOTIFIED BY: ROTHGEB |LAST UPDATE DATE: 09/24/96 | |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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | POWER RANGE HIGH POWER REACTOR TRIP LOGIC NOT TESTED IN ACCORDANCE WITH | | PLANT FSAR AND NRC SAFETY EVALUATION REPORT ASSUMPTIONS. | | | | THE LICENSEE HAS DETERMINED THAT PAST TESTING OF THE NUCLEAR | | INSTRUMENTATION SYSTEM HIGH POWER REACTOR TRIP FEATURE WAS NOT PERFORMED IN | | ACCORDANCE WITH ASSUMPTIONS MADE IN THE PLANT FSAR AND IN THE NRC SAFETY | | EVALUATION REPORT ISSUED IN SUPPORT OF THE OPERATING LICENSE. SPECIFICALLY, | | THE LOGIC WAS TESTED AS 2 / 3 CHANNELS TO TRIP, AS OPPOSED TO 2 / 4 OR | | 1 / 3. THE LICENSEE PLANS TO CHANGE THE TEST METHOD OR THE PLANT | | CONFIGURATION BEFORE STARTUP. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31053 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: OCONEE REGION: 2 |NOTIFICATION DATE: 09/24/96 | |UNIT: [ ] [2] [ ] STATE: SC |NOTIFICATION TIME: 17:55 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP |EVENT DATE: 09/24/96 | +------------------------------------------------+EVENT TIME: 16:43[EDT]| |NRC NOTIFIED BY: LINGLE |LAST UPDATE DATE: 09/24/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |SHYMLOCK RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION |CALVO EO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION |CONGEL AEOD | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |BEECHER OPA | | |WRIGHT FEMA | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | M/R Y 60 POWER OPERATION | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | HEATER DRAIN PIPE RUPTURE WITH PERSONNEL INJURIES | | | | AT APPROXIMATELY 1643, THE UNIT 2 REACTOR WAS MANUALLY TRIPPED FROM 60 | | PERCENT POWER AFTER A PIPE ASSOCIATED WITH THE LEVEL CONTROL SYSTEM FOR THE | | NUMBER 2 MOISTURE SEPARATOR/REHEATER RUPTURED (THIS IS A NON-RADIOACTIVE | | SYSTEM ASSOCIATED WITH THE MAIN TURBINE). FOLLOWING THE TRIP, ALL CONTROL | | RODS INSERTED, AND THE UNIT RESPONDED AS EXPECTED. THE STEAM LEAK WAS | | ISOLATED WHEN THE REACTOR TRIPPED. THERE WAS NO RADIOLOGICAL CONTAMINATION | | OR RELEASE ASSOCIATED WITH THIS EVENT. UNITS 1 AND 3 ARE UNAFFECTED. | | | | SEVEN PLANT EMPLOYEES WERE INJURED DUE TO STEAM FLASHING FROM THE RUPTURE. | | THE LICENSEE ENTERED THEIR MEDICAL RESPONSE PROCEDURES AND OFFSITE MEDICAL | | ASSISTANCE WAS REQUESTED. THE LICENSEE STATED THAT THE INJURED EMPLOYEES | | HAVE BEEN TAKEN OFFSITE FOR MEDICAL TREATMENT. A SITE ASSEMBLY WAS | | PERFORMED, AND ALL SITE EMPLOYEES WERE ACCOUNTED FOR. THE LICENSEE HAS | | ACTIVATED THE TECHNICAL SUPPORT AND OPERATIONS SUPPORT CENTERS TO ASSIST IN | | THE RESPONSE TO THIS EVENT. THE LICENSEE HAS INFORMED THE NRC RESIDENT | | INSPECTOR AND HAS ISSUED A PRESS RELEASE. | | | | * * * 2000 9/24/96 COMMISSIONERS ASSISTANTS' BRIEFING * * * | | | | PARTICIPANTS: R2DO (SHYMLOCK), EO (CALVO), AEOD (JORDAN, CONGEL), NRR | | (MIRAGLIA, THADANI, WESSMAN, HERMAN), REGION 2 (EBNETTER, WERT, JAUDON), | | PUBLIC AFFAIRS (HAYDEN), STATE PROGRAMS (VIRGILIO), CONGRESSIONAL AFFAIRS | | (KEELING), EDO (McCREE), SECY (HART), CHAIRMAN JACKSON (SMITH), COMM. | | ROGERS (FLEISHMAN), COMM. DICUS (CHAN, MARKLEY). | | | | * * * UPDATE 2115 9/24/96 FROM COOK TAKEN BY STRANSKY * * * | | | | AN UNUSUAL EVENT WAS DECLARED AND IMMEDIATELY TERMINATED DUE TO THE | | DISCOVERY OF COLLATERAL DAMAGE TO EQUIPMENT DURING A WALKDOWN OF THE | | AFFECTED AREA. THE LICENSEE'S EMERGENCY PLAN REQUIRES THE DECLARATION OF AN | | UNUSUAL EVENT UPON THE DISCOVERY OF COLLATERAL DAMAGE FOLLOWING AN | | EXPLOSION OR RUPTURE OF THIS NATURE. THE LICENSEE DISCOVERED DAMAGE TO | | COPPER TUBING ASSOCIATED WITH A PIECE OF CONTROL EQUIPMENT. THIS EQUIPMENT | | IS NOT AFFECTING CONTROL OF THE PLANT IN ITS CURRENT STATE, SO THE LICENSEE | | ELECTED TO TERMINATE THE UNUSUAL EVENT. THE NRC RESIDENT INSPECTOR HAS BEEN | | INFORMED BY THE LICENSEE. HOO NOTIFIED R2DO (SHYMLOCK), EO (CALVO), AEOD | | (CONGEL), FEMA (WRIGHT). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31054 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 09/24/96 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 18:32 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/24/96 | +------------------------------------------------+EVENT TIME: 17:00[CDT]| |NRC NOTIFIED BY: STEFAN |LAST UPDATE DATE: 09/24/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |HILAND 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 +------------------------------------------------------------------------------+ | ROLLUP FIRE DOOR FAILED TO CLOSE DURING TEST | | | | DURING THE PERFORMANCE OF TEST PROCEDURE SPP 96-029 REV. 01 TO VERIFY THE | | FUNCTIONALITY OF THE DIVISION 21 ESF SWITCHGEAR ROOM ROLLUP FIRE DOOR, THE | | DOOR FAILED TO CLOSE AS REQUIRED. ADDITIONALLY, THE DIVISION 21 ESF | | SWITCHGEAR ROOM PRESSURIZED DUE TO HVAC ALIGNMENT, RESULTING IN THE BREACH | | OF THE FIRE SEALS TO THE DIVISION 22 ESF SWITCHGEAR ROOM. | | | | THE LICENSEE HAS ESTABLISHED AN HOURLY FIRE WATCH IN ACCORDANCE WITH THEIR | | ADMINISTRATIVE PROCEDURES. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY | | THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31055 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 09/25/96 | |UNIT: [ ] [ ] [3] STATE: CA |NOTIFICATION TIME: 00:17 [ET]| |RX TYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 09/24/96 | +------------------------------------------------+EVENT TIME: 20:35[PDT]| |NRC NOTIFIED BY: POWERS |LAST UPDATE DATE: 09/25/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PHIL HARRELL RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | |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 STANDBY | 0 HOT STANDBY | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAS STARTED COOLDOWN TO MODE 5 IN ORDER TO REPAIR AN RTD | | THERMOWELL AS REQUIRED BY TS 3.4.1.3 DUE TO PRESSURE BOUNDARY LEAKAGE. | | | | AT 21:01 ON 9/23/96 A UNIT SHUTDOWN WAS INITIATED TO PERFORM AN RCS | | INSPECTION BASED UPON AN INCREASING TREND IN RCS LEAKAGE. AT 03:59 ON 9/24, | | THE UNIT WAS MANUALLY TRIPPED AT 15% POWER. IT WAS THEN DETERMINED AFTER | | THE INSPECTION THAT THE RCS LEAK DEVELOPED FROM A SPARE RCS RTD THERMOWELL | | LOCATED ON THE DISCHARGE PIPING OF REACTOR COOLANT PUMP 3P004. THE LICENSEE | | IS REPORTING THE EVENT AT THIS TIME SINCE THEY ARE SHUTTING THE REACTOR | | DOWN TO MODE 5 TO MAKE REPAIRS. WHILE SHUTTING DOWN, THEY ALSO HAD A | | FAILURE WITH THE NUMBER 1 STARTUP CHANNEL DUE TO A LOOSE CARD, BUT IT HAS | | BEEN RETURNED TO SERVICE. THE RI WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31056 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 09/25/96 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 04:32 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/25/96 | +------------------------------------------------+EVENT TIME: 00:43[PDT]| |NRC NOTIFIED BY: ANDERSON |LAST UPDATE DATE: 09/25/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PHIL HARRELL RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED AN UNACCOUNTED FOR SECURITY WEAPON. IMMEDIATE | | COMPENSATORY MEASURES TAKEN ON DISCOVERY. THE RI WILL BE NOTIFIED. SEE HOO | | LOG FOR DETAILS. | +------------------------------------------------------------------------------+