U.S. Nuclear Regulatory Commission Operations Center Event Reports For 05/16/96 - 05/17/96 ** EVENT NUMBERS ** 30474 30475 30476 30477 30478 30479 30480 30481 30482 30483 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30474 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 05/16/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 13:30 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 13:28[EDT]| |NRC NOTIFIED BY: SANTINI |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANIELLO DELLA GRECA RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED NEW YORK STATE ENVIRONMENTAL CONSERVATION OFFICE AND | | THE WEST CHESTER DEPARTMENT OF HEALTH OF A PCB SPILL WHICH OCCURRED ON | | 4/22/96. | | | | ON 4/22/96 A 1 GALLON OIL SPILL FROM A COMPANY OWNED VEHICLE OCCURRED. THE | | OIL LEAKED WAS FROM AN OIL TRUCK WHICH HAD BEEN USED BY THEIR TRANSFORMER | | SHOPS, SO PCBs WERE SUSPECTED. CLEANUP WAS PERFORMED IN COMPLIANCE WITH ALL | | THE APPLICABLE REGULATIONS FOR A PCB SPILL. THE ACTUAL PCB CONTENT, | | HOWEVER, WAS UNKNOWN AT THE TIME, SO THE EVENT WAS TREATED AS A | | NONREPORTABLE OIL SPILL. A SAMPLE WAS TAKEN AT THAT TIME FOR ANALYSIS, AND | | THE RESULTS WERE RETURNED ON 05/15/96. THE PCB CONTENT WAS DETERMINED FROM | | THE SAMPLE TO BE 139 PPM, WHICH IS A REPORTABLE AMOUNT. THE LICENSEE | | NOTIFIED THE APPROPRIATE AGENCIES OF THE SPILL TODAY. THE RI WAS NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30475 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: MKW POWER SYSTEMS, INC. |NOTIFICATION DATE: 05/16/96 | | CITY: ROCKY MOUNT REGION: 2 |NOTIFICATION TIME: 13:41 [ET]| | COUNTY: STATE: NC |EVENT DATE: 05/16/96 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[EDT]| | DOCKET: |LAST UPDATE DATE: 05/16/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+VERNON HODGE NRR | |NRC NOTIFIED BY: STEFFAN | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MKW POWER SYSTEMS, INC., REPORTED THAT THERE IS A PROBLEM WITH A VOLTAGE | | REGULATOR USED ON THEIR SAFETY RELATED DIESEL GENERATORS. | | | | DURING REPAIR AND TESTING OF A VOLTAGE REGULATOR, MANUFACTURED BY NEI | | PEEBLES, FOR TURKEY POINT, VOLTAGE INSTABILITY WAS OBSERVED. THE CAUSE WAS | | DETERMINED TO BE DUE TO FOREIGN MATERIAL ON THE STATIONARY WIPER PORTION OF | | THE R4 VOLTAGE ADJUST POTENTIOMETER. THE POTENTIOMETER IS 250 OHM, 2W, | | MANUFACTURED BY CHICAGO TELEPHONE SUPPLY, P/N 115R251A AND HAS BEEN USED BY | | NEI FOR OVER 20 YEARS FOR THIS APPLICATION. THE FOLLOWING U.S. CUSTOMERS | | AFFECTED ARE: | | 1. OCONEE | | 2. ST LUCIE-2 | | 3. TURKEY POINT | | 4. GRAND GULF | | 5. KESSELRING | | 6. TROJAN | | 7. SUSQUEHANNA | | 8. RANCHO SECO | | 9. WATTS BAR | | 10. SEQUOYAH | | 11. POINT BEACH | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30476 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 05/16/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 15:11 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 14:50[EDT]| |NRC NOTIFIED BY: LATZ |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANIELLO DELLA GRECA 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 +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED A CONDITION WHERE THE TURBINE STOP VALVE AND TURBINE | | CONTROL VALVE CLOSURE SCRAM SIGNALS WOULD BE BYPASSED WHEN REQUIRED TO BE | | OPERABLE BY TECHNICAL SPECIFICATION. | | | | THIS CONDITION WOULD OCCUR WHEN A REQUEST FOR LOAD REDUCTION IS MADE, | | REACTOR POWER IS REDUCED AND IN ADDITION THEY OPENED THEIR BYPASS VALVES TO | | BYPASS STEAM TO THE CONDENSER. THE TURBINE SCRAM BYPASS SIGNAL COMES FROM | | FIRST STAGE PRESSURE AND TECH SPECS REQUIRE CORE THERMAL POWER TO BE LESS | | THAN 50%. BECAUSE THE INITIATING SIGNAL FOR BYPASS COMES FROM FIRST STAGE | | PRESSURE WHEN THEY OPEN THE BYPASS VALVES THE FIRST STAGE PRESSURE COULD BE | | LESS THAN 50% WHICH CAUSES THE SCRAM BYPASS TO COME IN, BUT THERMAL POWER | | COULD STILL BE GREATER THAN 50%. THE INVESTIGATION WAS INITIATED BECAUSE OF | | GE INFORMATION LETTER #423. THEY PLAN TO CORRECT THEIR PROCEDURES TO | | PREVENT THIS CONDITION FROM OCCURRING. THE RI, STATE AND LOCAL AGENCIES | | WERE NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30477 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 05/16/96 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 15:56 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 05/14/96 | +------------------------------------------------+EVENT TIME: 15:48[EDT]| |NRC NOTIFIED BY: SANTINI |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANIELLO DELLA GRECA RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE DISCOVERED A CONDITION THAT, UNDER CERTAIN CIRCUMSTANCES, | | COULD COMPLICATE ONE OF THE PATHS OF EMERGENCY BORATION IF IT WERE | | REQUIRED. | | | | THIS CONDITION WAS IDENTIFIED AS THE RESULT OF AN EVENT IN WHICH A | | MALFUNCTION ASSOCIATED WITH AN INSTRUMENT BUS RESULTED IN THE CLOSURE OF | | THE VOLUME CONTROL TANK (VCT) OUTLET VALVE AND THE REALIGNMENT OF THE | | SUCTION OF THE CHARGING PUMPS FROM THE VCT TO THE REFUELING WATER STORAGE | | TANK (RWST). THE OPERATORS SECURED BORIC ACID TO BLENDED MAKEUP IN | | PREPARATION FOR OPERATION OF PRIMARY WATER MAKEUP TO DILUTE THE EXPECTED | | HIGH CONCENTRATION BORIC ACID FROM THE RWST. HOWEVER, BECAUSE THE DISCHARGE | | PRESSURE OF THE INSERVICE PRIMARY WATER MAKEUP WAS HIGHER THAN THE | | DISCHARGE HEAD FROM THE RWST, THE CHECK VALVE ON THE OUTLET OF THE RWST TO | | THE CHARGING PUMP SUCTION CLOSED. THIS EFFECTIVELY SHUT OFF THE RWST FROM | | THE SUCTION OF THE CHARGING PUMPS, LEAVING ONLY PRIMARY WATER. WHEN THE | | OPERATORS OBSERVED AN INCREASE IN THE RCS AVERAGE TEMPERATURE, INSTEAD OF | | THE EXPECTED DECREASE, THEY SECURED PRIMARY WATER MAKEUP. THE PLANT | | TRANSIENT WAS MINIMAL AND TRIP LIMITS WERE NOT REACHED. IN THE EVALUATION | | OF THIS EVENT, EMERGENCY BORATION PROCEDURES WERE REVIEWED. THE PROCEDURES | | DID NOT INSTRUCT THE OPERATOR TO SECURE MAKEUP PRIOR TO INITIATING | | EMERGENCY BORATION PATH FROM THE RWST. THE PROCEDURES HAVE NOW BEEN CHANGED | | TO INCLUDE THESE INSTRUCTIONS. OTHER EMERGENCY BORATION PATHS FROM THE | | BORIC ACID STORAGE SYSTEM WOULD HAVE BEEN UNAFFECTED BY THE CONDITION. THE | | RI WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 30478 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: MALLINCKRODT MEDICAL COMPANY |NOTIFICATION DATE: 05/16/96 | | CITY: LONG BRANCH REGION: 1 |NOTIFICATION TIME: 16:08 [ET]| | COUNTY: STATE: NJ |EVENT DATE: 05/16/96 | |LICENSE#: AGREEMENT: N |EVENT TIME: 08:00[EDT]| | DOCKET: |LAST UPDATE DATE: 05/16/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |ANIELLO DELLA GRECA RDO | | |LARRY CAMPER, NMSS EO | +------------------------------------------------+RICH BARRETT AEOD | |NRC NOTIFIED BY: CHECKAN, NAT RESP CENTER | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE USCG NATIONAL RESPONSE CENTER REPORTED THAT MALLINCKRODT MEDICAL | | COMPANY RECEIVED A DELIVERY CASE CONTAINING TECHNETIUM AT THE MONMOUTH | | MEDICAL CENTER, LONG BRANCH, NJ, THAT HAD SURFACE CONTAMINATION OF 17,000 | | DPM. THE RELEASE HAS BEEN SECURED AND THE BOX WAS ISOLATED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |HOSPITAL | |EVENT NUMBER: 30479 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: CENTRO DE CARDIOLODIA Y MEDICINA |NOTIFICATION DATE: 05/16/96 | | CITY: SAN JUAN REGION: 2 |NOTIFICATION TIME: 17:04 [ET]| | COUNTY: STATE: PR |EVENT DATE: 05/16/96 | |LICENSE#: AGREEMENT: N |EVENT TIME: 10:00[AT ]| | DOCKET: |LAST UPDATE DATE: 05/16/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JOHN POTTER RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: DR. ROMERO | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |LADM 35.33(a) MED MISADMINISTRATION | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE CENTRO DE CARDIOLOGIA Y MEDICINA NUCLEAR REPORTED A MEDICAL | | MISADMINISTRATION. | | | | THE PATIENT WAS TO RECEIVE 6 MILLICURIES OF TECHNETIUM, BUT THE TECHNICIAN | | INADVERTENTLY INJECTED THE PATIENT WITH 3 MILLICURIES OF THALLIUM 201 DUE | | TO MISREADING OF THE LABEL. THE PATIENT WAS INFORMED OF THE ERROR AND SENT | | HOME. THERE WILL BE NO ADVERSE AFFECTS TO THE PATIENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30480 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 05/16/96 | |UNIT: [1] [2] [3] STATE: CA |NOTIFICATION TIME: 17:55 [ET]| |RX TYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 14:05[PDT]| |NRC NOTIFIED BY: WILLIAMS |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PHIL HARRELL RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 DECOMMISSIONED | 0 DECOMMISSIONED | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED THE DISCOVERY OF A CONTROLLED SUBSTANCE NEAR THE | | PROTECTED AREA. | | | | ON 05/16/96, THE LICENSEE WAS NOTIFIED THAT A SUSPICIOUS SUBSTANCE | | DISCOVERED IN THE SECURITY PROCESSING FACILITY ON 05/13/96 WAS | | METHAMPHETAMINE. THE LICENSEE IS CONTINUING THE INVESTIGATION. THE RI WILL | | BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30481 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 05/16/96 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 20:13 [ET]| |RX TYPE: [1] CE |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 19:30[EDT]| |NRC NOTIFIED BY: MCDOUGOLD |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANIELLO DELLA GRECA 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 90 POWER OPERATION | 90 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE ENGINEERING DEPARTMENT DISCOVERED THAT DURING PREVIOUS | | SURVEILLANCES ON THE LPSI STOP VALVES, SEVERAL MOTOR OPERATED VALVES | | POWERED FROM THE SAME ELECTRICAL BUS COULD HAVE BECOME INOPERABLE. | | | | THIS SITUATION COULD HAVE HAPPENED IF A SAFETY INJECTION ACTUATION SIGNAL | | OCCURRED ALONG WITH A DEGRADED VOLTAGE CONDITION. THE THREE LPSI VALVES | | (LSI-M-11, LSI-M-21 & LSI-M-31) WERE TESTED IN ACCORDANCE WITH NRC GENERIC | | LETTER #89-10. SINCE IT WAS DETERMINED IN 1992 THAT THESE VALVES MAY NOT | | OPEN WITH A HIGH DIFFERENTIAL PRESSURE ALONG WITH A CONCURRENT DEGRADED | | VOLTAGE, THEY WERE LEFT OPEN AND PROCEDURALLY CONTROLLED FOR CLOSING DURING | | LPSI PUMP SURVEILLANCES. PREVIOUS MOV PROGRAM TESTING AND DEGRADED VOLTAGE | | CALCULATIONS SHOWED THAT THESE VALVES COULD OPEN AFTER CLOSING FOR | | SURVEILLANCES WITH THE PROCEDURE CONTROLS IN PLACE TO LIMIT DIFFERENTIAL | | PRESSURE OR REOPEN THE VALVES. SINCE THESE VALVES ARE NO LONGER IN THE MOV | | PROGRAM, THERE IS NO RECENT DATA TO SHOW THAT THE OLD CALCULATIONS ARE | | STILL VALID AND THAT NO DEGRADATION HAS TAKEN PLACE. THE LICENSEE HAD UNTIL | | THE END OF THE 1995 REFUELING TO PLACE THESE VALVES BACK IN THE MOV PROGRAM | | BASED ON THE GENERIC LETTER. SURVEILLANCES, HOWEVER, HAVE OCCURRED | | QUARTERLY SINCE THAT DATE. THERE ARE 20 OTHER MOVs THAT WERE | | AFFECTED(CH-M-1, CH-M-87, CS-M-1, CS-M-2, CS-M-66, CS-M-71, HSI-M-11, | | HSI-M-12, HSI-M-21, HSI-M-22, HSI-M-31, HSI-M-32, HSI-M-41, HSI-M-42, | | HSI-M-50, HSI-M-51, PCC-M-219, SL-M-29, SL-M-40, & SL-M-51. | | | | THE LICENSEE HAS ADMINISTRATIVELY PLACED RESTRICTION ON THE LPSI VALVES TO | | PREVENT AN INADVERTENT CLOSING UNTIL THIS ISSUE IS RESOLVED. THE LICENSEE | | HOPES TO RESOLVE THIS PRIOR TO THE NEXT LPSI PUMP SURVEILLANCE. THE RI WILL | | BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30482 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NORTH ANNA REGION: 2 |NOTIFICATION DATE: 05/16/96 | |UNIT: [ ] [2] [ ] STATE: VA |NOTIFICATION TIME: 20:59 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 20:10[EDT]| |NRC NOTIFIED BY: MASON |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN POTTER RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE DECLARED BOTH TRAINS OF SAFEGUARDS VENTILATION INOPERABLE AND | | ENTERED TECH SPEC 3.0.3 LCO ACTION STATEMENT TO REPAIR IN 1 HOUR OR BE IN | | HOT STANDBY MODE WITHIN 6 HOURS. | | | | THIS WAS DISCOVERED WHEN THEY FOUND AN OPENING BETWEEN THEIR SAFEGUARDS | | VENTILATION AREA (WHERE THEIR LOW HEAD SI PUMPS ARE LOCATED) AND THE QUENCH | | SPRAY AREA, WHICH IS ADJACENT TO IT AND NOT A FILTERED OR MONITORED RELEASE | | POINT. WITH THIS OPENING BETWEEN THE TWO AREAS, THE SAFEGUARDS VENTILATION | | SYSTEM WAS DECLARED INOPERABLE. THEY ARE CURRENTLY MAKING REPAIRS, BLOCKING | | OFF THE OPENING. THE RI WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30483 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 05/16/96 | |UNIT: [1] [2] [ ] STATE: PA |NOTIFICATION TIME: 22:49 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 05/16/96 | +------------------------------------------------+EVENT TIME: 18:50[EDT]| |NRC NOTIFIED BY: NEFF |LAST UPDATE DATE: 05/16/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANIELLO DELLA GRECA RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLTR LICENSEE 24 HR REPORT | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 21 POWER OPERATION | 21 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE HAS DETERMINED THAT CERTAIN CIRCUITS ASSOCIATED WITH THE UNIT | | 1 "D11" EMERGENCY DIESEL GENERATOR (EDG) AND THE UNIT 2 "D21" EDG ARE NOT | | ADEQUATELY PROTECTED FROM POSTULATED FIRE DAMAGE. | | | | CERTAIN FUSES IN THESE CIRCUITS ARE INCORRECTLY SIZED AND DO NOT ENSURE | | PROPER FUSE PROTECTION COORDINATION. THE POTENTIAL EXISTS THAT FIRE DAMAGE | | COULD RENDER THE "D11" OR "D21" EDG INOPERABLE. THESE EDGs ARE NEEDED TO | | SUPPORT SAFE SHUTDOWN METHODS 'A' AND 'R'. THIS IS CONSIDERED TO BE A | | CONDITION THAT ALONE COULD PREVENT THE FULFILLMENT OF THE SAFETY FUNCTION | | OF SYSTEMS NEEDED TO ACHIEVE SAFE SHUTDOWN IN THE EVENT OF A FIRE. THIS IS | | ALSO A CONDITION CONTRARY TO THE UNIT 1 AND 2 FACILITY OPERATING LICENSEE | | CONDITION #2.C.3 WHICH PROHIBITS CHANGES THAT REDUCE THE EFFECTIVENESS OF | | THE FIRE PROTECTION PROGRAM. | | | | COMPENSATORY MEASURES WILL BE ESTABLISHED WITHIN ONE HOUR IN THOSE | | ACCESSIBLE OR ADJOINING FIRE AREAS WHERE FIRE DAMAGE COULD PROPAGATE | | THROUGH THE INCORRECTLY SIZED FUSES AND DAMAGE CIRCUITS NEEDED TO SUPPORT | | OPERATION OF THE "D11" AND "D21" EDGs. THESE MEASURES INCLUDE HOURLY FIRE | | WATCH PATROLS, NOTIFICATION OF THE APPROPRIATE LICENSED OPERATORS OF THE | | CONDITION, AND VERIFY THAT NO WORK INVOLVING IGNITION SOURCES IS CURRENTLY | | BEING PERFORMED IN THE AFFECTED PLANT AREAS. | | | | THIS CONDITION WAS IDENTIFIED DURING A PROGRAMMATIC REVIEW OF THE FIRE SAFE | | SHUTDOWN CIRCUITS. A MODIFICATION PERFORMED IN 1992 INCREASED THE SIZE OF | | CERTAIN FUSES IN THE "D11" AND "D21 EDG CIRCUITS. THIS MODIFICATION DOES | | NOT AFFECT OTHER FIRE SAFE SHUTDOWN METHODS. A REVIEW IS BEING PERFORMED TO | | DETERMINE IF OTHER CIRCUITS ARE AFFECTED. THE RI WILL BE INFORMED. | +------------------------------------------------------------------------------+