U.S. Nuclear Regulatory Commission Operations Center Event Reports For 02/03/98 - 02/04/98 ** EVENT NUMBERS ** 33606 33639 33640 33641 33642 33643 33644 33645 33646 33647 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33606 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 01/27/98 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 18:16 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 01/27/98 | +------------------------------------------------+EVENT TIME: 14:30[PST]| |NRC NOTIFIED BY: J. BROWN |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM JOHNSON 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 +------------------------------------------------------------------------------+ | A SAFEGUARDS SYSTEM DEGRADATION RELATED TO SECURITY COMPUTERS OCCURRED. | | IMMEDIATE COMPENSATORY MEASURES WERE TAKEN UPON DISCOVERY. (REFER TO THE | | HOO LOG FOR ADDITIONAL DETAILS.) | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1228 ON 02/03/98 FROM BROWN RECEIVED BY TROCINE * * * | | | | THE LICENSEE DISCOVERED THAT COMPENSATORY MEASURES WERE NOT INCORPORATED | | WITHIN 10 MINUTES AS INITIALLY REPORTED. ADDITIONAL COMPENSATORY MEASURES | | WERE TAKEN WHEN THIS ERROR WAS IDENTIFIED. (REFER TO THE HOO LOG FOR | | ADDITIONAL DETAILS AND FOR A SITE CONTACT TELEPHONE NUMBER.) | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | CENTER NOTIFIED THE R4DO (SHACKELFORD). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33639 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NORTH ANNA REGION: 2 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [2] [ ] STATE: VA |NOTIFICATION TIME: 02:26 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 01:30[EST]| |NRC NOTIFIED BY: JAY JOHNSTONE |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - OFFSITE NOTIFICATION OF INOPERABLE PLANT SPILLWAY DIESEL GENERATOR - | | | | THE LICENSEE NOTIFIED THE FEDERAL EMERGENCY RESPONSE COMMISSION REGIONAL | | DIRECTOR THAT THE PLANT SPILLWAY DIESEL GENERATOR (BACKUP POWER SUPPLY) | | WAS DECLARED INOPERABLE WHEN IT FAILED TO START DURING ITS MONTHLY TEST. | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE FAILURE. THE OFFSITE POWER | | SUPPLY (NORMAL POWER SUPPLY) IS AVAILABLE. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 33640 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 02/03/98 | | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 02:40 [ET]| |COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 01/29/98 | | 6903 ROCKLEDGE DRIVE |EVENT TIME: 01:30[EST]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 02/04/98 | | CITY: PIKETON REGION: 3 +-----------------------------+ | COUNTY: PIKE STATE: OH |PERSON ORGANIZATION| |LICENSE#: GDP-2 AGREEMENT: N |BRENT CLAYTON RDO | | DOCKET: 0707002 |MARGARET FEDERLINE EO | +------------------------------------------------+RICHARD BARRETT/AEOD IRD | |NRC NOTIFIED BY: RON CRABTREE | | |HQ OPS OFFICER: DICK JOLLIFFE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | |NLTR LICENSEE 24 HR REPORT | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - LOSS OF ONE DOUBLE CONTINGENCY CONTROL (SPACING) IN THE X-333 BUILDING - | | | | AT 0130 ON 01/29/98, PLANT OPERATIONS PERSONNEL DISCOVERED A POTENTIAL | | NON-COMPLIANCE WITH A NUCLEAR CRITICALITY SAFETY APPROVAL (NCSA) WHEN A | | CALIBRATION BUGGY (A 2.5-FEET LONG, 1.5-FEET WIDE, PORTABLE CART) WAS FOUND | | LOCATED ADJACENT TO A HOUSING CONTAINING UF6 PIPING. PLANT OPERATIONS | | PERSONNEL MOVED THE BUGGY TO A SAFE LOCATION AND CORDONED OFF THE AREA | | UNTIL AN EVALUATION COULD BE PERFORMED AND NRC REPORTABILITY DETERMINED. | | | | AT 0104 ON 02/03/98, PLANT OPERATIONS PERSONNEL DETERMINED THAT THIS EVENT | | IS AN NRC BULLETIN 91-01, 24-HOUR, REPORTABLE EVENT SINCE UF6 WOULD HAVE | | FLOWED THROUGH THE PIPING ADJACENT TO THE BUGGY WHEN THE X-333 OPERATION | | WAS STARTED UP. THE LOCATION OF THE BUGGY NEAR THE UF6 PIPING CONSTITUTED | | THE LOSS OF ONE CONTROL (SPACING) OF THE DOUBLE CONTINGENCY CONTROL MATRIX | | AS DEFINED IN NCSA-PLANT 069.A00, CONTINGENCY EVENT A/B-7.1, CONTROL 'A,' | | REQUIREMENT #3, WHICH REQUIRES 2 FEET EDGE-TO-EDGE SPACING BETWEEN TEST | | BUGGIES AND OTHER URANIUM BEARING EQUIPMENT. | | | | CONTROL 'B' (MASS CONTROL) WAS MAINTAINED THROUGHOUT THIS EVENT. THERE WAS | | NO LOSS OF HAZARDOUS OR RADIOACTIVE MATERIAL OR RADIOLOGICAL CONTAMINATION | | EXPOSURE AS A RESULT OF THIS EVENT. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR AND PLANS TO INFORM THE | | SITE DEPARTMENT OF ENERGY REPRESENTATIVE. | | | | * * * UPDATE 0206 2/4/98 FROM CRABTREE TAKEN BY STRANSKY * * * | | | | THIS REPORT IS BEING RETRACTED. AT 1530 ON 2/3/98, AFTER INVESTIGATING THE | | CIRCUMSTANCES AND EQUIPMENT INVOLVED IN THE EVENT, REGULATORY AFFAIRS | | PERSONNEL DETERMINED THAT THERE WAS NO LOSS OF NUCLEAR CRITICALITY SAFETY | | CONTROL AS INITIALLY REPORTED. CALIBRATION BUGGIES ARE NOT INCLUDED IN THE | | 'TEST BUGGIES' COVERED BY NCSA-PLANT069.A00 AS INTIALLY REPORTED. MANY | | TYPES OF TEST BUGGIES ARE INCLUDED IN THE NCSA, BUT CALIBRATION BUGGIES | | WERE SPECIFICALLY EXEMPTED FROM THIS NCSA AS EARLY AS 3/7/97, SINCE THE | | MANNER IN WHICH THESE BUGGIES ARE USED WOULD NOT REQUIRE NCS SPACING | | REQUIREMENTS DUE TO THE FACT THAT THEY ARE USED ON EQUIPMENT FROM WHICH | | FISSILE MATERIAL HAS BEEN EVACUATED. AT THIS TIME, NO NCSA IS REQUIRED FOR | | THE USE OF THESE CALIBRATION BUGGIES. THE NRC RESIDENT INSPECTOR HAS BEEN | | INFORMED. NOTIFIED R3DO (CLAYTON). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33641 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 07:57 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 04:53[PST]| |NRC NOTIFIED BY: BRUCE LEWIS |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEFF SHACKELFORD RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP |ROBERT DENNIG/NRR EO | | |RICHARD BARRETT/AEOD IRD | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 50 POWER OPERATION | 50 POWER OPERATION | | 2 | N Y 50 POWER OPERATION | 50 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - 70 EARLY WARNING SYSTEM SIRENS INOPERABLE DUE TO HIGH WINDS - | | | | HIGH WINDS (APPROXIMATELY 30 MILES PER HOUR) HAVE CAUSED LOCAL POWER | | OUTAGES THAT HAVE DE-ENERGIZED 70 EARLY WARNING SYSTEM SIRENS FOR LONGER | | THAN ONE HOUR. (THE REPORTING REQUIREMENT IS GREATER THAN 65 SIRENS OUT OF | | SERVICE FOR GREATER THAN 1 HOUR.) POWER IS CURRENTLY BEING RESTORED TO | | THESE SIRENS. | | | | THE LICENSEE NOTIFIED LOCAL OFFICIALS AND THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1422 ON 02/03/98 FROM ANDERSON RECEIVED BY TROCINE * * * | | | | AT 0951 PST, THE CONTROL ROOM WAS NOTIFIED THAT POWER HAD BEEN RESTORED TO | | ALL BUT 59 SIRENS. THIS NUMBER IS EXPECTED TO IMPROVE. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS | | CENTER NOTIFIED THE R4DO (SHACKELFORD) AND NRR EO (CAPRA). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33642 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GINNA REGION: 1 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 13:10 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 10:35[EST]| |NRC NOTIFIED BY: MIKE MICKLOW |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LAURIE PELUSO RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | |C. DEPUY (VIA FAX) FEMA | | |ZACHMAN (VIA FAX) DOE | | |BICKERTON (VIA FAX) USDA | | |JIM RABB (VIA FAX) HHS | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION OF A TECHNICAL SUPPORT CENTER DIESEL FUEL OIL STORAGE | | TANK LEAK | | | | AT 1035 ON 02/03/98, VACUUM TESTING OF THE TECHNICAL SUPPORT CENTER DIESEL | | FUEL OIL STORAGE TANK DETERMINED THAT THE TANK WAS NOT AIR TIGHT AND THAT A | | LEAK PATH EXISTED. PRIOR TO THE TEST, LEVEL IN THE TANK WAS REDUCED TO A | | POINT WHERE LEVEL WAS MAINTAINED AND LEAKAGE CURTAILED. THERE WAS NO | | VISIBLE INDICATION OF THE LEAK APPARENT, AND PERIODIC GROUND WATER SAMPLES | | HAVE ALSO INDICATED NO LEAKAGE. TANK LEVEL IS CURRENTLY BEING MAINTAINED | | BELOW THE LEAK PATH. THE LICENSEE ESTIMATED THAT APPROXIMATELY 25 GALLONS | | OF FUEL OIL WAS MISSING AND THAT IT HAD PROBABLY LEAKED INTO THE GROUND | | UNDERNEATH THE FUEL TANK VAULT. | | | | THE LICENSEE NOTIFIED THE NEW YORK DEPARTMENT OF ENVIRONMENTAL CONSERVATION | | OF THE FAILED PRESSURE TEST ON THE FUEL TANK (SPILL #97-12009). THE | | LICENSEE ALSO NOTIFIED THE NRC RESIDENT INSPECTOR. IN ADDITION TO THE | | NOTIFICATIONS REFERENCED ABOVE, THE NRC OPERATIONS CENTER NOTIFIED THE | | FOLLOWING FEDERAL AGENCIES VIA FACSIMILE: ENVIRONMENTAL PROTECTION AGENCY | | (MIKE SHIEH) AND DEPARTMENT OF TRANSPORTATION - NATIONAL RESPONSE CENTER | | (DAVID F. GONYEA). THE NAMES IN PARENTHESES INDICATE THE INDIVIDUALS WHO | | ACKNOWLEDGED RECEIPT OF THE FACSIMILE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33643 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WASHINGTON NUCLEAR REGION: 4 |NOTIFICATION DATE: 02/03/98 | |UNIT: [2] [ ] [ ] STATE: WA |NOTIFICATION TIME: 14:02 [ET]| |RX TYPE: [2] GE-5 |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 07:56[PST]| |NRC NOTIFIED BY: BRIAN GARDES |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEFF SHACKELFORD 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 | 72 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MANUAL POWER REDUCTION AND AUTOMATIC START OF THE HIGH PRESSURE CORE SPRAY | | EMERGENCY DIESEL GENERATOR DUE TO AN OPERATOR ERROR DURING THE PERFORMANCE | | OF SURVEILLANCE TESTING | | | | THIS IS A VOLUNTARY REPORT OF AN AUTOMATIC START OF THE HIGH PRESSURE CORE | | SPRAY (HPCS) EMERGENCY DIESEL GENERATOR AS RECOMMENDED IN NUREG 1022. THE | | EMERGENCY DIESEL GENERATOR START IS NOT AN ENGINEERED SAFETY FEATURE | | ACTUATION AT WASHINGTON NUCLEAR UNIT 2, AND THE LICENSEE BELIEVES THAT IT | | IS NOT REQUIRED TO BE REPORTED UNDER 10 CFR 50.72(b)(2)(ii). | | | | THE UNIT EXPERIENCED A LOSS OF NORMAL POWER SUPPLY TO BUSSES SM-2 AND SM-4 | | DUE TO OPERATOR ERROR. (A SWITCH WAS MISPOSITIONED DURING THE PERFORMANCE | | OF A SURVEILLANCE TEST.) THE LOSS OF VOLTAGE ON SM-2 RESULTED IN A LOSS OF | | A CONDENSATE BOOSTER PUMP AND CONDENSATE PUMP. IN ORDER TO PREVENT THE | | LOSS OF A FEEDWATER PUMP, THE CONTROL ROOM SUPERVISOR IMMEDIATELY ORDERED | | CORE FLOW REDUCED TO 60 Mlbm/HOUR. THE LOSS OF BUS SM-4 RESULTED IN A | | VALID UNDERVOLTAGE AUTOMATIC START OF THE HPCS EMERGENCY DIESEL GENERATOR, | | AND THIS IN TURN RESULTED IN RE-ENERGIZATION OF BUS SM-4. HPCS INJECTION | | WAS NEITHER REQUIRED NOR INITIATED. | | | | FOLLOWING THE TRANSIENT, THE PLANT WAS STABILIZED AT 72% POWER. ALL | | ELECTRICAL PARAMETERS RETURNED TO NORMAL, AND THE HPCS EMERGENCY DIESEL | | GENERATOR WAS SECURED. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR AND PLANS TO ISSUE A | | 30-DAY LICENSEE EVENT REPORT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33644 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SOUTH TEXAS REGION: 4 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [2] [ ] STATE: TX |NOTIFICATION TIME: 14:04 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 12:43[CST]| |NRC NOTIFIED BY: ROYCE BROWN |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEFF SHACKELFORD RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS |ROBERT CAPRA, NRR EO | |ACNC 50.72(b)(1)(ii)(C) COND OUTSIDE EOPS | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | FAILURE TO ACCOUNT FOR THE ELEVATION DIFFERENCE BETWEEN THE TOP OF THE | | STEAM GENERATOR TUBES AND THE LOWER TAP ELEVATION RESULTING IN AN 8.3% OF | | SPAN ERROR (IN THE NONCONSERVATIVE DIRECTION) IN THE EMERGENCY OPERATING | | PROCEDURES | | | | DURING A REVIEW OF THE EMERGENCY OPERATING PROCEDURE (EOP) CALCULATION FOR | | THE STEAM GENERATOR REPLACEMENT PROJECT, IT WAS DISCOVERED THAT THE | | ELEVATION DIFFERENCE BETWEEN THE TOP OF THE STEAM GENERATOR TUBES AND THE | | LOWER TAP ELEVATION HAD NOT BEEN ACCOUNTED FOR. THIS AFFECTED TWO EOP | | SETPOINTS (M2 AND M3), AND THESE TWO EOP SETPOINTS WERE IDENTIFIED AS | | POINTS WHERE THE LEVEL IN THE STEAM GENERATOR IS RE-ESTABLISHED | | SUFFICIENTLY TO COVER THE TOP OF THE TUBE BUNDLE. THE ERROR IN THE | | ELEVATION CAUSED AN 8.3% OF SPAN ERROR IN THE NONCONSERVATIVE DIRECTION. | | THE CURRENT SETPOINT IS 5%, AND THE REVISED SETPOINT SHOULD BE 14%. | | | | AS A COMPENSATORY ACTION, THE LICENSEE HAS DIRECTED OPERATIONS PERSONNEL TO | | UTILIZE 14% NARROW RANGE LEVEL AND 34% ADVERSE CONTAINMENT VALUE (NARROW | | RANGE LEVEL) IN THE EOPs WHILE THE PROCEDURES ARE BEING REVISED. THE UNIT | | IS NOT CURRENTLY IN A TECHNICAL SPECIFICATION LIMITING CONDITION FOR | | OPERATION AS A RESULT OF THIS ISSUE. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33645 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 18:34 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 17:01[EST]| |NRC NOTIFIED BY: FRANK GORLEY |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS DECKER RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNANTICIPATED TRIP OF A CONTROL ROOM OUTSIDE AIR INLET RADIATION MONITOR | | AND SUBSEQUENT AUTOMATIC SWAP OF THE MAIN CONTROL ROOM ENVIRONMENTAL SYSTEM | | TO THE PRESSURIZATION MODE | | | | CONTROL ROOM OUTSIDE AIR INLET RADIATION MONITOR 1Z41-R615A TRIPPED FOR | | UNKNOWN REASONS AND CAUSED THE MAIN CONTROL ROOM ENVIRONMENTAL SYSTEM TO | | AUTOMATICALLY SWAP TO THE PRESSURIZATION MODE. THE LICENSEE SUSPECTS THAT | | THE TRIP WAS SPURIOUS; HOWEVER, INVESTIGATIONS ARE STILL UNDERWAY. THERE | | WERE NO SURVEILLANCE OR MAINTENANCE ACTIVITIES ONGOING AT THE TIME OF THE | | EVENT. THE RADIATION MONITOR HAS SINCE BEEN RESET, AND THE UNIT IS NOT IN | | A TECHNICAL SPECIFICATION LIMITING CONDITION FOR OPERATION AS A RESULT OF | | THIS EVENT. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33646 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: POINT BEACH REGION: 3 |NOTIFICATION DATE: 02/03/98 | |UNIT: [1] [2] [ ] STATE: WI |NOTIFICATION TIME: 22:30 [ET]| |RX TYPE: [1] W-2-LP,[2] W-2-LP |EVENT DATE: 02/03/98 | +------------------------------------------------+EVENT TIME: 20:30[CST]| |NRC NOTIFIED BY: RICK PARLATO |LAST UPDATE DATE: 02/03/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRENT CLAYTON RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | | |NLCO TECH SPEC LCO A/S | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 82 POWER OPERATION | 82 POWER OPERATION | | 2 | N N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THREE OF FOUR EMERGENCY DIESEL GENERATORS DECLARED OUT OF SERVICE IN | | RESPONSE TO A 10 CFR PART 21 REPORT ON GRAHAM-WHITE AIR START SOLENOID | | VALVES | | | | IN RESPONSE TO A 10 CFR PART 21 REPORT ON GRAHAM-WHITE AIR START SOLENOID | | VALVES, THREE OF THE FOUR EMERGENCY DIESEL GENERATORS HAVE BEEN DECLARED | | OUT OF SERVICE (G01, G02, AND G04). EMERGENCY DIESEL GENERATOR G01 WAS OUT | | OF SERVICE PRIOR TO THIS EVENT. BOTH UNITS ENTERED TECHNICAL SPECIFICATION | | 15.3.0 (A 7-HOUR SHUTDOWN LIMITING CONDITION FOR OPERATION) AT 2030 CST AND | | EXITED IT AT 2102 CST WHEN EMERGENCY DIESEL GENERATOR G03 WAS ALIGNED TO | | THE 'B' TRAIN SAFEGUARDS 4,160-VOLT BUSSES (1 AND 2 A06) AND TESTING WAS | | COMPLETED. CALCULATIONS INDICATE THAT DC VOLTAGE FOR EMERGENCY DIESEL | | GENERATOR G03 IS GREATER THAN 105 VOLTS (THE LIMIT IN THE 10 CFR PART 21 | | REPORT.) UNIT 1 REMAINS AT 82% POWER, AND UNIT 2 SHUTDOWN WITH T(ave) LESS | | THAN 540øF. | | | | HOO NOTE: THE SITE HAS FOUR EMERGENCY DIESEL GENERATORS (TWO PER UNIT). | | HOWEVER, EACH DIESEL HAS THE CAPABILITY OF BEING CROSS | | CONNECTED. NORMALLY, G01 SUPPLIES THE 'A' TRAIN FOR UNIT 1, G02 | | SUPPLIES THE 'A' TRAIN FOR UNIT 2, G03 SUPPLIES THE 'B' TRAIN | | FOR UNIT 1, AND G04 SUPPLIES THE 'B' TRAIN FOR UNIT 2. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 33647 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 02/04/98 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 02:01 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 02/04/98 | +------------------------------------------------+EVENT TIME: 00:10[CST]| |NRC NOTIFIED BY: FUNKHOUSER |LAST UPDATE DATE: 02/04/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRENT CLAYTON 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 +------------------------------------------------------------------------------+ | POTENTIAL COMMON MODE FAILURE OF SERVICE WATER MOVs | | | | THE LICENSEE HAS DISCOVERED THAT THERE ARE CURRENTLY NO EXPLICIT | | INSTRUCTIONS TO PROHIBIT MOTOR OPERATED VALVE (MOV) TEST PREP SWITCHES | | (TPSs) FOR TWO OR MORE DIVISIONS OF THE SHUTDOWN SERVICE WATER SYSTEM (SX) | | FROM BEING PLACED IN THE 'TEST' POSITION SIMULTANEOUSLY. PLACING TPSs FOR | | MORE THAN ONE DIVISION IN 'TEST' INTRODUCES THE POSSIBILITY OF A COMMON | | MODE FAILURE THAT COULD DISABLE MULTIPLE DIVISIONS OF SX. WHEN A TPS IS | | PLACED IN 'TEST', THE TORQUE SWITCH AND THERMAL OVERLOADS FOR THE MOV ARE | | ENGAGED. PER OPERATIONAL REQUIREMENTS MANUAL (ORM) 2.5.2, THE TORQUE SWITCH | | AND THERMAL OVERLOADS ARE NORMALLY BYPASSED TO ENSURE THAT THEY WILL NOT | | PREVENT SAFETY RELATED VALVES FROM PERFORMING THEIR FUNCTION. THE TPSs ARE | | TEMPORARILY PLACED IN 'TEST' DURING TESTING AND ROUTINE OPERATION OF THE | | VALVES. | | | | A SIMILAR COMMON MODE FAILURE OCCURRED ON 4/9/96 WHEN VALVES 1SX014A AND B | | (NONSAFETY SERVICE WATER TO SHUTDOWN SERVICE WATER ISOLATION VALVES) FAILED | | TO CLOSE COMPLETELY AFTER A LOSS OF SERVICE WATER. THE VALVES TORQUED OUT | | PRIOR TO COMPLETE CLOSURE DUE TO THE DIVISION 1 AND 2 TPSs BEING PLACED IN | | THE 'TEST' POSITION FOR ROUTINE VALVE OPERATION. THE NRC RESIDENT INSPECTOR | | HAS BEEN INFORMED. | +------------------------------------------------------------------------------+