U.S. Nuclear Regulatory Commission Operations Center Event Reports For 02/02/96 - 02/05/96 ** EVENT NUMBERS ** 29913 29924 29925 29926 29927 29928 29929 29930 29931 29932 29933 29934 29935 29936 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29913 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WOLF CREEK REGION: 4 |NOTIFICATION DATE: 01/31/96 | |UNIT: [1] [ ] [ ] STATE: KS |NOTIFICATION TIME: 11:03 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 01/31/96 | +------------------------------------------------+EVENT TIME: 10:00[CST]| |NRC NOTIFIED BY: TED PITT |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |GARY SANBORN RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |AL CHAFFEE, NRR EO | | |CALDWELL FEMA | | |JOSE CALVO, NRR EO | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED DUE TO THE DISCOVERY OF AN ICE BUILDUP IN THE INTAKE | | STRUCTURE WITH THE UNIT IN MODE 4 (REFER TO EVENT NUMBERS 29904 AND 29905 | | FOR ADDITIONAL INFORMATION.) | | | | WITH THE 'A' TRAIN OF THE ESSENTIAL SERVICE WATER SYSTEM OUT OF SERVICE, | | THE LICENSEE SENT DIVERS INTO THE ESSENTIAL SERVICE WATER 'A' PUMP BAY AND | | DISCOVERED A LARGE AMOUNT OF CRUSHED TIGHTLY-PACKED ICE ON THE TRASH RACKS | | IMMEDIATELY IN FRONT OF THE TRASH SCREENS THAT PROTECT THE ESSENTIAL | | SERVICE WATER PUMP. THE ICE ON THE TRASH RACKS WAS BLOCKING FLOW FROM THE | | TOP OF THE BAY TO THE BOTTOM OF THE BAY. THE SCREENS WERE NOT BLOCKED. | | THE LICENSEE HAS CONTINGENCY PLANS IN PROGRESS TO REMOVE THE ICE. (THE | | LICENSEE IS CURRENTLY PLANNING TO HAVE DIVERS INSPECT THE ESSENTIAL SERVICE | | WATER 'B' PUMP BAY. THE WATER LEVEL IN THE 'B' PUMP BAY HAS NOT CHANGED.) | | CURRENTLY, ONE SERVICE WATER PUMP IS AVAILABLE. CIRCULATING WATER IS NOT | | AVAILABLE AT THIS TIME AND IS NOT NEEDED WHILE THE UNIT IS IN MODE 4. | | | | AS A RESULT OF THIS ISSUE, THE LICENSEE DECLARED AN UNUSUAL EVENT BASED ON | | STEPS 1 AND 2 OF THE ADMINISTRATIVE EMERGENCY ACTION LEVELS. THESE STEPS | | REFERENCE THE EXISTENCE OF OTHER CONDITIONS WHICH INDICATE A POTENTIAL | | DEGRADATION OF THE LEVEL OF SAFETY IN THE PLANT OR WHICH INDICATE THAT | | PLANT SAFETY SYSTEMS MAY BE DEGRADED AND INCREASED MONITORING OF PLANT | | SYSTEMS IS WARRANTED. THERE ARE NO RECOMMENDED PROTECTIVE ACTIONS AT THIS | | TIME. | | | | THE LICENSEE IS IN THE PROCESS OF NOTIFYING THE COFFEE COUNTY SHERIFF, | | KANSAS DIVISION OF EMERGENCY MANAGEMENT, AMERICAN NUCLEAR INSURERS, | | INSTITUTE OF NUCLEAR POWER OPERATIONS, AND THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1308 ON JANUARY 31, 1996, FROM PITT TAKEN BY KARSCH * * * | | | | METEOROLOGICAL CONDITIONS ARE STABLE WITH DIMINISHING WIND AND CONTINUED | | COLD. THE LICENSEE WILL USE A MOBILE STEAM INJECTION UNIT NOW ON SITE TO | | CLEAR THE ICE FROM THE 'A' BAY TRASH RACKS. | | | | * * * UPDATE AT 1658 ON JANUARY 31, 1996, BY KARSCH * * * | | | | A COMMISSIONERS ASSISTANTS' BRIEFING WAS CONDUCTED AT 1645 ON JANUARY 31, | | 1996. THE FOLLOWING BRIEFING NOTIFICATIONS WERE MADE: AEOD(JORDAN), | | CHAIRMAN JACKSON (JOHNSON), COMMISSIONER ROGERS (SORENSEN), EDO REGION | | (MITCHELL), PAO (BEECHER), CAO (MADDEN), SECY (BATES), SP (BANGART), | | IP (FAULKNER), R4 BRIEFER (COLLINS), AND R4RA (CALLAN). | | | | * * * UPDATE AT 1520 ON 2/2/96 FROM GILMORE TAKEN BY STRANSKY * * * | | | | LICENSEE TERMINATED THE UNUSUAL EVENT AT 1005 CST ON 02/02/96. LICENSEE | | NOTIFIED STATE AND LOCAL OFFICIALS AND THE NRC RESIDENT INSPECTOR AND | | ISSUED A PRESS RELEASE. HOO NOTIFIED R4DO SANBORN, NRR EO CHAFFEE, AND | | FEMA KANUPP. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29924 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALISADES REGION: 3 |NOTIFICATION DATE: 02/02/96 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 10:38 [ET]| |RX TYPE: [1] CE |EVENT DATE: 02/02/96 | +------------------------------------------------+EVENT TIME: 09:51[EST]| |NRC NOTIFIED BY: ROBERT VINCENT |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RONALD GARDNER 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 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | POTENTIAL FOR THE LOSS OF BOTH TRAINS OF PRIMARY COOLANT SYSTEM | | POWER-OPERATED RELIEF VALVES DURING A POSTULATED APPENDIX 'R' EXPOSURE FIRE | | | | DURING A PLANNED ONGOING RE-EVALUATION OF APPENDIX 'R' COMPLIANCE | | STRATEGIES, THE LICENSEE DISCOVERED THAT A LACK OF COORDINATION EXISTS | | BETWEEN THE FUSES IN THE MAIN DC POWER FEED TO ELECTRICAL PANELS D21-1 AND | | D11-1 AND SELECTED BREAKERS SUPPLYING BRANCH CIRCUITS OFF OF THESE PANELS. | | AN APPENDIX 'R' EXPOSURE FIRE IN SELECTED AREAS IS POSTULATED TO RESULT IN | | MULTIPLE CABLE SHORTS. THESE SHORTS COULD RESULT IN THE CLEARING OF THE | | MAIN POWER FEED FUSES BEFORE THE BRANCH CIRCUITS SUPPLYING THE FAULTED | | CABLES. LOSS OF D21-1 AND D11-1 WOULD RESULT IN LOSS OF BOTH TRAINS OF THE | | PRIMARY COOLANT SYSTEM POWER-OPERATED RELIEF VALVES WHICH WOULD BE NEEDED | | TO ACHIEVE COLD SHUTDOWN. | | | | ALL PANELS AND ASSOCIATED EQUIPMENT REMAIN OPERABLE. THIS IS ONLY AN ISSUE | | UNDER APPENDIX 'R' WITH AN EXPOSURE FIRE. SINGLE RANDOM CABLE FAULTS | | CANNOT CAUSE LOSS OF BOTH TRAINS OF POWER-OPERATED RELIEF VALVES. | | COMPENSATORY FIRE TOURS HAVE BEEN ESTABLISHED. | | | | THE LICENSEE HAS NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29925 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GRAND GULF REGION: 4 |NOTIFICATION DATE: 02/02/96 | |UNIT: [1] [ ] [ ] STATE: MS |NOTIFICATION TIME: 10:56 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 02/02/96 | +------------------------------------------------+EVENT TIME: 09:20[CST]| |NRC NOTIFIED BY: FRANK WEAVER |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GARY SANBORN 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 +------------------------------------------------------------------------------+ | LOSS OF EMERGENCY SIRENS IN CLAIBORNE COUNTY POSSIBLY DUE TO ICING | | CONDITIONS | | | | THE LICENSEE WAS NOTIFIED BY THE CLAIBORNE COUNTY CIVIL DEFENSE THAT ALL OF | | THE EMERGENCY SIRENS IN CLAIBORNE COUNTY (30 TOTAL) ARE OUT OF SERVICE DUE | | TO A COMMON LINK BEING DOWN. THE COMMUNICATION LINK WAS DOWN POSSIBLY DUE | | TO ICING CONDITIONS. | | | | THE LICENSEE WILL NOTIFY THE NRC RESIDENT INSPECTOR. | | | | NOTE: SEE EVENT #29928 FOR A RELATED EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29926 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SEQUOYAH REGION: 2 |NOTIFICATION DATE: 02/02/96 | |UNIT: [1] [2] [ ] STATE: TN |NOTIFICATION TIME: 11:08 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/02/96 | +------------------------------------------------+EVENT TIME: 10:20[EST]| |NRC NOTIFIED BY: ROBBIN RUSSELL |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | | |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 +------------------------------------------------------------------------------+ | LOSS OF POWER TO GREATER THAN 30% OF THE EMERGENCY SIRENS IN THE LICENSEE'S | | 10-MILE EMERGENCY PLANNING ZONE DUE TO ICING CONDITIONS | | | | THE LICENSEE DETERMINED THAT 33 EMERGENCY SIRENS WERE WITHOUT POWER DUE TO | | ICING CONDITIONS. THIS WAS GREATER THAN 30% (32 SIRENS) OF THE EMERGENCY | | SIRENS IN THE LICENSEE'S 10-MILE EMERGENCY PLANNING ZONE. THE RETURN TO | | SERVICE TIME IS CURRENTLY UNKNOWN. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR AND THE STATE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29927 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SURRY REGION: 2 |NOTIFICATION DATE: 02/02/96 | |UNIT: [1] [2] [ ] STATE: VA |NOTIFICATION TIME: 11:30 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 02/02/96 | +------------------------------------------------+EVENT TIME: 10:35[EST]| |NRC NOTIFIED BY: JIM HARTKA |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY 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 | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF POWER TO THE METEOROLOGICAL TOWERS DUE TO THE LOSS OF AN OFFSITE | | POWER LINE DURING A WINTER STORM | | | | POWER WAS LOST TO THE PRIMARY AND BACKUP METEOROLOGICAL DATA TOWERS. | | METEOROLOGICAL DATA IS USED TO ACCESS POST-ACCIDENT RADIOACTIVE RELEASES IN | | ACCORDANCE WITH THE STATION EMERGENCY PLAN. LOSS OF METEOROLOGICAL DATA, | | THEREFORE, CONSTITUTES A MAJOR LOSS OF EMERGENCY ASSESSMENT CAPABILITY. | | | | THE AREA IS CURRENTLY EXPERIENCING A WINTER STORM, AND A DOWNED OFFSITE | | POWER LINE IS THE SUSPECTED CAUSE OF THE POWER LOSS. ONSITE AND OFFSITE | | POWER FOR SAFETY-RELATED STATION EQUIPMENT IS AVAILABLE, AND BOTH UNITS ARE | | STABLE AT FULL POWER. ALTERNATIVE METEOROLOGICAL DATA IS AVAILABLE IN | | ACCORDANCE WITH STATION EMERGENCY PROCEDURES BY CALLING THE NATIONAL | | WEATHER SERVICE. | | | | THE LICENSEE WILL NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29928 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GRAND GULF REGION: 4 |NOTIFICATION DATE: 02/02/96 | |UNIT: [1] [ ] [ ] STATE: MS |NOTIFICATION TIME: 22:14 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 02/02/96 | +------------------------------------------------+EVENT TIME: 20:18[CST]| |NRC NOTIFIED BY: HUMPHREYS |LAST UPDATE DATE: 02/02/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GARY SANBORN 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOUISIANA OFFICE OF EMERGENCY PREPAREDNESS CONTACTED NEWS MEDIA DUE TO | | INADVERTENT SOUNDING OF EMERGENCY SIRENS | | | | AT APPROXIMATELY 2018, TWO EMERGENCY SIRENS IN TENSAS PARISH, LA, SOUNDED | | MOMENTARILY AS POWER WAS BEING RESTORED TO THEM FOLLOWING A POWER OUTAGE. | | THIS PROMPTED THE LOUISIANA OFFICE OF EMERGENCY PREPAREDNESS TO ISSUE A | | MEDIA STATEMENT TO NOTIFY CITIZENS THAT NO EMERGENCY CONDITION EXISTED AT | | GRAND GULF. THE LICENSEE WILL NOTIFY THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 2320 ON 02/02/96 FROM HUMPHREYS TAKEN BY STRANSKY * * * | | | | AT APPROXIMATELY 2200 CST, AN ADDITIONAL SIREN IN TENSAS PARISH SOUNDED, | | AND THE LOUISIANA OFFICE OF EMERGENCY PREPAREDNESS ISSUED ANOTHER MEDIA | | STATEMENT. ALL OTHER SIRENS IN TENSAS PARISH HAVE BEEN DEACTIVATED TO | | PREVENT FURTHER SOUNDINGS. THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY | | THE LICENSEE. NOTIFIED R4DO (SANBORN). | | | | * * * UPDATE AT 0942 ON 02/04/96 BY KELLY McDONALD TAKEN BY JOLLIFFE * * * | | | | AT 0742 (CST) ON 02/04/96, LICENSEE WAS NOTIFIED BY THE LOUISIANA OFFICE | | OF EMERGENCY PREPAREDNESS THAT ONE OFFSITE EMERGENCY SIREN HAD SOUNDED | | FOR A FEW MINUTES AT O226 (CST) ON 02/04/96 AND THAT A MEDIA STATEMENT | | HAD NOT BEEN ISSUED. LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | HOO NOTIFIED R4DO GARY SANBORN. | | | | NOTE: SEE EVENT #29925 FOR A RELATED EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29929 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 02/03/96 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 08:03 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 02/03/96 | +------------------------------------------------+EVENT TIME: 05:44[CST]| |NRC NOTIFIED BY: BRAD WILLIAMS |LAST UPDATE DATE: 02/03/96 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RONALD GARDNER RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 92 POWER OPERATION | 92 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -CONTROL ROOM EMERGENCY FILTRATION SYSTEM INOP DUE TO COLD AIR TEMPERATURE- | | | | AT 0544 (CST), THE NATIONAL WEATHER SERVICE REPORTED THAT THE LOCAL AMBIENT | | TEMPERATURE AT CLINTON, IL, WAS MINUS 29 DEGREES F. | | | | LICENSEE DECLARED THE CONTROL ROOM EMERGENCY FILTRATION (CREF) SYSTEM | | INOPERABLE. | | | | TECH SPEC LCO A/S 3.8.H.1 REQUIRES LICENSEE TO DECLARE THE CREF SYSTEM | | INOPERABLE WHEN THE LOCAL AMBIENT TEMPERATURE IS BELOW MINUS 28.1 DEGREES F | | AND TO SHUT THE UNITS DOWN IF THE CREF IS NOT RESTORED TO OPERABLE STATUS | | WITHIN 14 DAYS. | | | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29930 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 02/03/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 14:43 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 02/03/96 | +------------------------------------------------+EVENT TIME: 14:35[EST]| |NRC NOTIFIED BY: QUINN |LAST UPDATE DATE: 02/03/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD CONTE 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE DISCOVERED IGSCC INDICATION IN WELD ON LOW PRESSURE COOLANT | | INJECTION LINE. | | | | DURING SUPPLEMENTAL INSERVICE INSPECTIONS DUE TO OTHER INDICATIONS FOUND BY | | ROUTINE INSERVICE INSPECTIONS (SEE EVENTS #29613 AND 29628), THE LICENSEE | | DISCOVERED AN AXIAL INDICATION OF >75% THRU-WALL IN A WELD ON THE LPCI 'A' | | INJECTION LINE. THE WELD IS LOCATED ON PIPING BETWEEN THE REACTOR | | RECIRCULATION LINE AND THE FIRST MANUAL ISOLATION VALVE. THE LICENSEE | | STATED THAT THE WELD INDICATION APPEARED TO HAVE BEEN CAUSED BY INTRA- | | GRANULAR STRESS CORROSION CRACKING (IGSCC). THE DEPTH OF THIS INDICATION | | PLACES THE LPCI 'A' SUBSYSTEM OUTSIDE OF ITS DESIGN BASIS FOR PIPING | | INTEGRITY. | | | | THE LICENSEE HAS COMPLETED APPROXIMATELY 30% OF THE SUPPLEMENTAL | | INSPECTIONS, AND INTENDS TO CONTINUE WITH THE INSERVICE INSPECTIONS. | | SEVERAL OTHER INDICATIONS HAVE BEEN FOUND, BUT THE LICENSEE STATED THAT | | THESE INDICATIONS DID NOT AFFECT PIPING INTEGRITY. THE INDICATION WILL BE | | REPAIRED BEFORE UNIT STARTUP. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29931 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 02/03/96 | |UNIT: [1] [ ] [ ] STATE: NC |NOTIFICATION TIME: 15:11 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/03/96 | +------------------------------------------------+EVENT TIME: 14:19[EST]| |NRC NOTIFIED BY: MCALLISTER |LAST UPDATE DATE: 02/03/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | M/R Y 100 POWER OPERATION | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MANUAL REACTOR TRIP DUE TO HIGH MOTOR BEARING TEMPERATURE IN '1A' REACTOR | | COOLANT PUMP. | | | | OPERATORS MANUALLY TRIPPED THE UNIT AFTER THE MOTOR BEARING TEMPERATURE IN | | THE '1A' REACTOR COOLANT PUMP REACHED THE TRIP CRITERIA OF 195øF. THE '1A' | | REACTOR COOLANT PUMP WAS SECURED FOLLOWING THE TRIP. EARLIER, OPERATORS | | HAD RECEIVED INDICATIONS OF A MOTOR BEARING PROBLEM (HIGH TEMPERATURE AND | | VIBRATION) IN THE '1A' REACTOR COOLANT PUMP, AND WERE IN THE PROCESS OF | | REDUCING REACTOR POWER BELOW THE P-8 INTERLOCK (48% REACTOR POWER) IN ORDER | | TO TRIP THE REACTOR COOLANT PUMP AND PERFORM A CONTROLLED UNIT SHUTDOWN. | | THE REACTOR RESPONDED NORMALLY TO THE TRIP, WITH ALL CONTROL RODS INSERTING | | COMPLETELY, AND ALL SYSTEMS FUNCTIONING AS DESIGNED, WITH THE EXCEPTION OF | | INTERMEDIATE RANGE NUCLEAR INSTRUMENT CHANNEL 'N36', WHICH SHOWED SIGNS OF | | UNDERCOMPENSATION. FOLLOWING THE REACTOR TRIP, THE AUXILIARY FEEDWATER | | SYSTEM AUTOMATICALLY STARTED DUE TO LOW WATER LEVEL IN THE '1B' STEAM | | GENERATOR. | | | | THE LICENSEE BELIEVES THAT THE HIGH BEARING TEMPERATURE WAS CAUSED BY A | | COOLING WATER BLOCKAGE TO THE MOTOR BEARING. THE LICENSEE STATED THAT A | | COMPUTER ALARM INDICATED LOW COOLING WATER FLOW TO THE '1A' REACTOR COOLANT | | PUMP MOTOR. THE LICENSEE INTENDS TO MAKE A CONTAINMENT ENTRY TO IDENTIFY | | AND POSSIBLY REMOVE THE BLOCKAGE. | | | | THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29932 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 02/03/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 17:22 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 02/03/96 | +------------------------------------------------+EVENT TIME: 17:22[EST]| |NRC NOTIFIED BY: BIGIARELLI |LAST UPDATE DATE: 02/03/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD CONTE 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 +------------------------------------------------------------------------------+ | AREA ROOM COOLERS DO NOT MEET USI A-46 UPGRADED SEISMIC REQUIREMENTS | | | | DURING A REVIEW OF COMPLIANCE WITH UPGRADED SEISMIC QUALIFICATIONS REQUIRED | | BY THE NRC FOR RESOLUTION OF UNRESOLVED SAFETY ISSUE (USI) A-46, THE | | LICENSEE DETERMINED THAT AREA ROOM COOLERS LOCATED NEAR THE EMERGENCY | | DIESEL GENERATOR AND FEEDWATER PUMPS DO NOT MEET THE UPGRADED SEISMIC | | REQUIREMENTS OF USI A-46, ALTHOUGH THEY DO MEET THEIR ORIGINAL DESIGN | | REQUIREMENTS. THESE ROOM COOLERS ARE REQUIRED FOR OPERABILITY OF THE EDG | | AND FEEDWATER COOLANT INJECTION (FWCI) SYSTEMS. THE LICENSEE HAS DECLARED | | THE FWCI SYSTEM INOPERABLE (THE EDG IS PRESENTLY INOPERABLE DUE TO OTHER | | SEISMIC QUALIFICATION CONCERNS). FURTHER, THE TURBINE BUILDING SECONDARY | | COMPONENT COOLING WATER SYSTEM, WHICH SUPPLIES COOLING WATER TO THESE AREA | | ROOM COOLERS, HAS BEEN DECLARED INOPERABLE. | | | | THE LICENSEE IS CURRENTLY PERFORMING AN ENGINEERING EVALUATION, AND WILL | | TAKE WHATEVER ACTIONS ARE APPROPRIATE TO CORRECT THE PROBLEMS. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN NOTIFIED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29933 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 02/04/96 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 15:25 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 02/04/96 | +------------------------------------------------+EVENT TIME: 11:40[EST]| |NRC NOTIFIED BY: PATON |LAST UPDATE DATE: 02/04/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD CONTE 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 79 POWER OPERATION | 79 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT RECEIVED HALF SCRAM SIGNAL AND VARIOUS CONTAINMENT ISOLATIONS DUE TO | | LOSS OF POWER TO 'A' REACTOR PROTECTION SYSTEM ELECTRICAL BUS. | | | | AT 1140 ON 2/4/96, UNIT 1 EXPERIENCED A LOSS OF THE 'A' RPS/UPS POWER TO | | '1A' RPS/UPS DISTRIBUTION PANEL '1AY160' WHEN AN UNDERFREQUENCY SIGNAL FROM | | RELAY '81-AY24801' CAUSED SERIES BREAKER '52-AY24801' TO OPEN. AS A RESULT, | | UNIT 1 RECEIVED AN 'A' SIDE HALF SCRAM SIGNAL AND VARIOUS PRIMARY | | CONTAINMENT ISOLATIONS TO OCCUR (RWCU, RX ENCLOSURE, HVAC, PRIMARY | | CONTAINMENT INSTRUMENT GAS, REACTOR ENCLOSURE COOLING WATER, AND | | MISCELLANEOUS SAMPLE SYSTEMS). ALL SYSTEMS FUNCTIONED AS DESIGNED. | | FOLLOWING TROUBLESHOOTING, THE HALF SCRAM SIGNAL AND ALL ISOLATIONS WERE | | RESET. SYSTEM RESTORATION AND TROUBLESHOOTING ACTIVITIES ARE ONGOING. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29934 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 02/04/96 | |UNIT: [1] [ ] [ ] STATE: NC |NOTIFICATION TIME: 18:35 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/04/96 | +------------------------------------------------+EVENT TIME: 09:57[EST]| |NRC NOTIFIED BY: HARRIS |LAST UPDATE DATE: 02/04/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY 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 N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OPERATOR INADVERTENTLY CAUSED FEEDWATER ISOLATION | | | | AT 0957, A NUCLEAR CONTROL OPERATOR INADVERTENTLY INITIATED A TRAIN B | | FEEDWATER ISOLATION SIGNAL. THE OPERATOR WAS IN THE PROCESS OF DEPRESSING | | THE A AND B TRAIN FEEDWATER ISOLATION RESET PUSHBOTTONS TO ALLOW CLOSURE OF | | THE REACTOR TRIP BREAKERS. THE OPERATOR INADVERTENTLY DEPRESSED THE TRAIN | | B MANUAL ISOLATION PUSHBUTTON INSTEAD OF THE RESET PUSHBUTTON. THE | | FEEDWATER ISOLATION WAS RESET, AND FLOW WAS REESTABLISHED TO THE STEAM | | GENERATORS. THERE WAS NO ADVERSE EFFECT ON PLANT SYSTEMS. | | | | THE LICENSEE DETERMINED THAT THIS WAS REPORTABLE AT 1833 ON 2/4/96 AFTER | | CONSULTING WITH A MEMBER OF THE SAFETY REVIEW GROUP. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29935 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COMANCHE PEAK REGION: 4 |NOTIFICATION DATE: 02/04/96 | |UNIT: [1] [ ] [ ] STATE: TX |NOTIFICATION TIME: 18:45 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/04/96 | +------------------------------------------------+EVENT TIME: 16:27[CST]| |NRC NOTIFIED BY: COX |LAST UPDATE DATE: 02/04/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GARY SANBORN 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 17 POWER OPERATION | 2 STARTUP | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MOTOR DRIVEN AUXILIARY FEEDWATER PUMPS STARTED DUE TO TRIP OF MAIN | | FEEDWATER PUMP | | | | WHILE PLACING A LOW-PRESSURE FEEDWATER HEATER STRING INTO SERVICE, THE | | RUNNING MAIN FEEDWATER PUMP TRIPPED DUE TO LOW SUCTION PRESSURE. THE | | MOTOR-DRIVEN AUXILIARY FEEDWATER PUMPS AUTOMATICALLY STARTED TO MAINTAIN | | LEVEL IN THE STEAM GENERATORS. THE LICENSEE STATED THAT THE TRIP WAS DUE | | TO A MOMENTARY DECREASE IN CONDENSATE HEADER PRESSURE THAT OCCURRED BECAUSE | | THE FEEDWATER HEATERS HAD NOT BEEN COMPLETELY FILLED BEFORE BEING PLACED | | INTO SERVICE. FOLLOWING THE TRIP OF THE MAIN FEEDWATER PUMP, OPERATORS | | TRIPPED THE MAIN TURBINE AND MANUALLY REDUCED REACTOR POWER TO | | APPROXIMATELY TWO PERCENT. | | | | THE LICENSEE HAS RESTARTED THE MAIN FEEDWATER PUMP, AND HAS SECURED THE | | AUXILIARY FEEDWATER SYSTEM. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29936 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 02/05/96 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 01:15 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 02/04/96 | +------------------------------------------------+EVENT TIME: 20:37[CST]| |NRC NOTIFIED BY: GUY McCALLUM |LAST UPDATE DATE: 02/05/96 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RONALD GARDNER RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -MANUAL SCRAM FROM 55% DUE TO HIGH MAIN POWER TRANSFORMER OIL TEMPERATURE- | | | | AFTER RECEIPT OF THE #2E MAIN POWER TRANSFORMER HIGH OIL TEMPERATURE ALARM, | | TECHNICIANS DETERMINED THAT NO TRANSFORMER COOLING PUMPS OR FANS WERE | | RUNNING AND THE TRANSFORMER CIRCUIT BREAKERS WERE NOT TRIPPED. | | | | LICENSEE REDUCED POWER FROM 100% TO REDUCE THE TEMPERATURE IN THE | | TRANSFORMER PER THEIR ABNORMAL PROCEDURES. | | | | HOWEVER, THE TRANSFORMER TEMPERATURE CONTINUED TO INCREASE AND THE CONTROL | | ROOM OPERATORS MANUALLY SCRAMMED UNIT 2 FROM 55% POWER. ALL CONTROL RODS | | INSERTED COMPLETELY. CONTROL ROOM OPERATORS MANUALLY STARTED THE MOTOR | | DRIVEN REACTOR FEEDWATER PUMP. STEAM IS BEING DUMPED TO THE MAIN CONDENSER. | | | | THE #2A CIRCULATING WATER PUMP TRIPPED ON THE ELECTRICAL LOAD TRANSFER AND | | HAS SINCE BEEN RESTARTED. THE ELECTRO-HYDRAULIC CONTROL SYSTEM PRESSURE | | WAS LOW FOR TURBINE CONTROL PRESSURE AND HAS SINCE BEEN RESTORED TO NORMAL. | | | | FOLLOWING THE SCRAM, PCIS GROUP 6 (SHUTDOWN COOLING) AND GROUP 7 (TIPS | | RETRACTION) ACTUATED, AS DESIGNED. | | | | UNIT 2 IS STABLE IN CONDITION 3 (HOT SHUTDOWN). | | | | LICENSEE IS DETERMINING THE CAUSE OF THIS EVENT. | | | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | THIS EVENT HAD NO EFFECT ON UNIT 1 WHICH IS IN CONDITION 5 (REFUELING). | +------------------------------------------------------------------------------+