U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/31/95 - 02/01/95 ** EVENT NUMBERS ** 28308 28309 28310 28311 28312 28313 28314 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28308 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ROBINSON REGION: 2 |NOTIFICATION DATE: 01/31/95 | |UNIT: [2] [ ] [ ] STATE: SC |NOTIFICATION TIME: 06:55 [ET]| |RX TYPE: [2] W-3-LP |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 03:03[EST]| |NRC NOTIFIED BY: DOUG WINTERS |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GEORGE AL BELISLE RDO | |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 | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EDG "A" STARTED UNEXPECTEDLY WHEN PLACING THE LOCAL/REMOTE SWITCH TO REMOTE | | | | EDG "A" WAS BEING RUN TO TEST ITS FUEL OIL TRANSFER PUMP. AFTER COMPLETION | | OF THE TEST THE EDG WAS STOPPED IAW OP-604. WHEN THE LOCAL/REMOTE SWITCH | | WAS PLACED IN REMOTE, THE DIESEL RESTARTED. THE DIESEL WAS SUBSEQUENTLY | | STOPPED. THE LICENSEE DOES NOT CONSIDER THIS A VALID ESF ACTUATION BUT IS | | REPORTING THE EVENT BECAUSE THE RESPONSE WAS UNEXPECTED. THE LICENSEE HAS | | CONCLUDED THE DIESEL WOULD HAVE BEEN AVAILABLE TO SUPPORT AN ESF ACTUATION | | & SUPPLY POWER TO THE EMERGENCY BUS. THE CAUSE OF THE MALFUNCTION IS BEING | | INVESTIGATED. | | | | EDG "A" HAS BEEN DECLARED OPERABLE. THOUGH THE FAULT HAS NOT BEEN | | SPECIFICALLY IDENTIFIED, THE LICENSEE CONSIDERS THE DIESEL OPERABLE BECAUSE | | NO ALARM EXISTS IN THE CONTROL ROOM WHEN THE LOCAL/REMOTE SWITCH IS PLACED | | IN REMOTE. A BARRING OVER PROCEDURE IS NORMALLY PERFORMED AFTER STOPPING | | THE DIESEL AND THIS PROCEDURE WAS PERFORMED. THIS PROCEDURE EXERCISES THE | | LOCAL/REMOTE SWITCH. WHEN THE SWITCH WAS PLACED IN LOCAL, THE EXPECTED | | ALARM WAS RECEIVED IN THE CONTROL ROOM. WHEN THE SWITCH WAS TAKEN BACK TO | | REMOTE, THE ALARM CLEARED AND THE DIESEL DID NOT RE-START. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28309 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 01/31/95 | |UNIT: [ ] [2] [3] STATE: CA |NOTIFICATION TIME: 14:51 [ET]| |RX TYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 11:50[PST]| |NRC NOTIFIED BY: CHAMPION |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |YANDELL RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 98 POWER OPERATION | 98 POWER OPERATION | | 3 | N Y 97 POWER OPERATION | 97 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ENTRY OF AN UNAUTHORIZED PERSON INTO THE PROTECTED AREA. IMMEDIATE | | COMPENSATORY MEASURES TAKEN UPON DISCOVERY. SEE HOO LOG FOR DETAILS. THE | | RI WILL BE NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 28310 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GENERAL ELECTRIC CO. |NOTIFICATION DATE: 01/31/95 | | RXTYPE: URANIUM FUEL FABRICATION |NOTIFICATION TIME: 15:33 [ET]| |COMMENTS: LEU CONVERSION (UF6 TO UO2) |EVENT DATE: 01/30/95 | | LEU FABRICATION |EVENT TIME: 17:00[EST]| | LWR COMMERICAL FUEL |LAST UPDATE DATE: 01/31/95 | | CITY: WILMINGTON REGION: 2 +-----------------------------+ | COUNTY: NEW HANOVER STATE: NC |PERSON ORGANIZATION| |LICENSE#: SNM-1097 AGREEMENT: Y |JEROME BLAKE RDO | | DOCKET: 07001113 |MALCOLM KNAPP EO | +------------------------------------------------+ | |NRC NOTIFIED BY: PAULSON | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GENERAL ELECTRIC, WILMINGTON, IS REPORTING THIS EVENT UNDER BULLETIN 91-01 | | CRITICALITY CONTROL 24 HR REPORT DUE TO THE POTENTIAL LOSS OF CONCENTRATION | | CONTROL. | | | | AT 17:00 ON 01/30/95, AN ENGINEER WAS PERFORMING A CONFIGURATION CHECK ON | | INPUTS TO THE LEACH WATER TANK(V225). THIS VESSEL IS A FAVORABLE | | GEOMETRY(ANNULAR TANK) USED TO COLLECT LIQUIDS FOR FEED TO THE URANIUM | | RECOVERY UNIT(URU) CONCENTRATOR SYSTEM. THE DOUBLE CONTINGENCY PRINCIPLE ON | | THIS TANK IS MET WITH CONCENTRATION AND GEOMETRY CONTROLS. THE ENGINEER | | DISCOVERED THAT ACTIVE ENGINEERED CONTROLS(AEC) USED TO SHUT OFF INPUT TO | | THIS VESSEL HAD BEEN MODIFIED, WHILE ISOLATION OF THE STEAM IN THE REBOILER | | LOOP REMAINED. WHILE THIS WAS NOT A SAFETY EVENT, THERE IS A POTENTIAL THAT | | THE CONFIGURATION IN PLACE DOES NOT ACCURATELY IMPLEMENT THE ESTABLISHED | | CONCENTRATION CONTROLS. AT NO TIME WAS THE CONCENTRATION CONTROL | | LIMIT(280gU/l) EXCEEDED DURING THIS EVENT. ALL CONTROLS WERE RE-ESTABLISHED | | WITHIN 4 HRS(e.g. ALL FEEDS WERE STOPPED, TANK CONTENTS WERE ANALYZED AND | | VERIFIED ACCEPTABLE) AND ADDITIONAL CORRECTIVE ACTIONS ARE BEING DEVELOPED. | | THE STATE AND LOCAL AGENCIES WILL BE NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28311 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CRYSTAL RIVER REGION: 2 |NOTIFICATION DATE: 01/31/95 | |UNIT: [3] [ ] [ ] STATE: FL |NOTIFICATION TIME: 16:18 [ET]| |RX TYPE: [3] B&W-L-LP |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 15:45[EST]| |NRC NOTIFIED BY: NUEMAN |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEROME BLAKE 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | NEW PRESSURE/LEVEL CURVE FOR MAKEUP TANK 1 WAS NON-CONSERVATIVE WHICH | | PLACED THE PLANT OUTSIDE ITS DESIGN BASIS. | | | | THE LICENSEE DISCOVERED DURING A REVIEW, THAT THE NEW PRESSURE/LEVEL CURVE | | (ISSUED 1/30/95) FOR MAKEUP TANK 1 WAS NON-CONSERVATIVE, AND HAD THE | | POTENTIAL FOR PLACING THE SYSTEM OUTSIDE THE DESIGN BASIS. THIS CONDITION | | COULD CAUSE TOO MUCH HYDROGEN TO BE IN THE TANK FOR ITS CORRESPONDING | | LEVEL, AND THAT WOULD RESULT IN GAS BINDING ON THE MAKEUP PUMPS. THEIR | | IMMEDIATE CORRECTIVE ACTION WAS TO LOWER THE MAKEUP TANK PRESSURE TO | | APPROXIMATELY 10LBS. THE LICENSEE WILL BE CONDUCTING FURTHER REVIEW TO | | ESTABLISH AN ADMINISTRATIVE LIMIT FOR TANK PRESSURE. THE RI WAS INFORMED. | | | | ***UPDATE AT 18:38 BY NUEMAN TO GOULD*** UPON FURTHER REVIEW, THE LICENSEE | | HAS DETERMINED THAT THE TANK SHOULD BE MAINTAINED BETWEEN 7-12LBS. THE RI | | WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28312 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NORTH ANNA REGION: 2 |NOTIFICATION DATE: 01/31/95 | |UNIT: [1] [ ] [ ] STATE: VA |NOTIFICATION TIME: 18:05 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 17:00[EST]| |NRC NOTIFIED BY: BROWN |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEROME BLAKE 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 +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE FEDERAL ENERGY REGULATORY COMMISSION THAT THEIR | | DAM SPILLWAY DIESEL IS OUT OF SERVICE. | | | | AT 17:00 ON 1/31/95, THE SPILLWAY DIESEL FAILED TO START WHILE VERIFYING | | OPERABILITY. OPERABILITY WAS BEING VERIFIED SINCE IT HAD PREVIOUSLY STARTED | | FOR AN UNKNOWN CAUSE AND THEN SHUT DOWN BY ITSELF. THIS NOTIFICATION WAS | | MADE PER THEIR PROCEDURES. THE RI WAS NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28313 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BYRON REGION: 3 |NOTIFICATION DATE: 01/31/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 18:09 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 16:15[CST]| |NRC NOTIFIED BY: KNARR |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN JACOBSON RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 97 POWER OPERATION | 97 POWER OPERATION | | 2 | N Y 77 POWER OPERATION | 77 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFEGUARDS SYSTEM DEGRADATION RELATED TO ALARMS ON THE RWST HATCH. | | COMPENSATORY MEASURES TAKEN UPON DISCOVERY. SEE HOO LOG BOOK FOR FURTHER | | INFORMATION. THE RI WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28314 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: OCONEE REGION: 2 |NOTIFICATION DATE: 01/31/95 | |UNIT: [1] [2] [3] STATE: SC |NOTIFICATION TIME: 18:36 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP |EVENT DATE: 01/31/95 | +------------------------------------------------+EVENT TIME: 16:00[EST]| |NRC NOTIFIED BY: PATTERSON |LAST UPDATE DATE: 01/31/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JEROME BLAKE 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DISCOVERED A PREVIOUS CONDITION WHERE THE LOW PRESSURE | | INJECTION (LPI) SYSTEM WAS TECHNICALLY INOPERABLE. | | | | ON 12/27/94 @ 17:30 A ONE-HOUR REPORT WAS MADE PER 10CFR72 TO REPORT THE | | DISCOVERY OF A CONDITION OUTSIDE OF DESIGN BASIS DUE TO A REQUIREMENT OF AN | | ABNORMAL PROCEDURE TO SPLIT LPI HEADER FLOWS IN THE EVENT OF A POSTULATED | | SINGLE FAILURE OF A LPI PUMP DURING ECCS OPERATION. THESE PROCEDURES WERE | | REVISED TO PREVENT THIS OPERATION. HOWEVER, FURTHER REVIEW OF THE | | CONSEQUENCES OF LPI FLOW SPLITTING REVEALED THAT INSTRUMENT INACCURACIES AT | | LOW FLOW CONDITIONS COULD LEAD TO INADEQUATE ECCS FLOW DURING CERTAIN | | POSTULATED ACCIDENTS. FSAR 15.14.5 STATES THAT TO MEET LONG TERM | | CONTAINMENT VAPOR TEMPERATURE WITHIN THE BOUNDS OF THE EQ ENVELOPE AT LEAST | | ONE RBCU AND ONE LPI COOLER MUST BE AVAILABLE. IF FLOW FROM ONE LPI PUMP IS | | SPLIT TO TWO COOLERS AND INSTRUMENT INACCURACY IS ALSO CONSIDERED ALONG | | WITH RBCU FOULING THEN THERE HAVE BEEN PERIODS WHEN THE LPI SYSTEM WAS | | TECHNICALLY INOPERABLE BECAUSE THE EQ REQUIREMENTS WOULD NOT HAVE BEEN MET. | | THIS DETERMINATION WAS MADE TODAY. THE RI WAS INFORMED. | +------------------------------------------------------------------------------+