U.S. Nuclear Regulatory Commission Operations Center Event Reports For 08/17/94 - 08/18/94 ** EVENT NUMBERS ** 27600 27683 27684 27685 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27600 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 07/28/94 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 12:25 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 07/28/94 | +------------------------------------------------+EVENT TIME: 10:25[CDT]| |NRC NOTIFIED BY: JEFF NADEN |LAST UPDATE DATE: 08/17/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROBERT DEFAYETTE 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 +------------------------------------------------------------------------------+ | DIVISION 3 SUPPLY BREAKERS POTENTIALLY INOPERABLE DURING THE LAST SEVERAL | | YEARS. | | | | THE FOLLOWING IS THE TEXT OF A FACSIMILE RECEIVED FROM THE LICENSEE | | REPORTING THIS EVENT: "IT WAS RECENTLY DISCOVERED DURING REVIEW OF OLD | | PREVENTATIVE MAINTENANCE (PM) DOCUMENTS THAT PARAMETERS WERE LEFT OUTSIDE | | OF THEIR ALLOWABLE VALUES. THE PM's WERE PERFORMED ON THE DIVISION 3 DIESEL | | GENERATOR (DG) BREAKER AND ON THE DIVISION 3 RESERVE AUXILIARY TRANSFORMER | | (RAT) BREAKER. THIS CAUSED DIVISION 3 POWER SUPPLY TO BE INOPERABLE FROM | | THE DATE THE PM WAS PERFORMED, WHICH WAS 3/28/92 FOR THE DG BREAKER AND | | 4/13/92 FOR THE RAT BREAKER, UNTIL THE PRESENT. THIS NOTIFICATION IS BEING | | MADE PER 10 CFR 50.72 (b)(1)(ii)(B) BECAUSE IN THE TIME PERIOD THAT THESE | | BREAKERS WERE INOPERABLE, SOLE RELIANCE ON DIVISION 3 POWER TO MAINTAIN THE | | PLANT IN A SAFE SHUTDOWN CONDITION MAY HAVE OCCURRED." | | | | THE DIVISION 3 POWER IS ESSENTIALLY FOR THE HIGH PRESSURE CORE SPRAY AND | | ITS SUPPORT SYSTEMS. DURING AN ENGINEERING DESIGN REVIEW OF THE BREAKERS | | WHICH SUPPLY THIS BUS, IT WAS NOTED THAT THE GAP SETTINGS ON SOME OF THE | | CONTACTS WERE TOO CLOSE PLACING THEM OUTSIDE THE ALLOWABLE SETPOINTS. THIS | | COULD RESULT IN THE BREAKERS BEING SENSED AS CLOSED DURING AN UNDERVOLTAGE | | CONDITION EVEN THOUGH THEY WERE ACTUALLY OPEN. THE BREAKERS HAVE BEEN | | DECLARED INOPERABLE BUT ARE STILL FUNCTIONAL. THE LICENSEE HAS 72 HOURS TO | | CORRECT THIS CONDITION PER TECH SPECS. PREPARATIONS ARE UNDERWAY TO | | READJUST THE BREAKER CONTACT GAPS. | | | | THE LICENSEE NOTES THAT THERE MAY HAVE BEEN OUTAGES DURING THE LAST SEVERAL | | YEARS WHERE HPCS WAS RELIED ON AS THE SOLE SOURCE OF ECCS. THE RESIDENT | | INSPECTOR WILL BE NOTIFIED. | | | | *** RETRACTION FROM MOTZEGOOD TO HUFFMAN AT 11:15 EDT ON 8/17/94 *** | | ACTUAL INSPECTION OF THE BREAKER CONTACT GAPS REVEALED THAT THEY WERE | | WITHIN TOLERANCE AND ALL HARDWARE WAS SECURELY FASTENED. THE LICENSEE NOW | | BELIEVES THAT THERE WAS NEVER A PROBLEM WITH THE GAPS. INVESTIGATION | | SUPPORTS THE BELIEF THAT THE INSPECTING TECHNICIAN ORIGINALLY MEASURED THE | | GAPS INCORRECTLY AND ALSO MADE A TRANSPOSITION ERROR WHEN RECORDING THE | | MEASUREMENTS. THE NRC RESIDENT AND R3DO(BURDICK) HAVE BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27683 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 08/17/94 | |UNIT: [ ] [2] [ ] STATE: GA |NOTIFICATION TIME: 04:57 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 08/17/94 | +------------------------------------------------+EVENT TIME: 01:00[CDT]| |NRC NOTIFIED BY: ED URQUHART |LAST UPDATE DATE: 08/17/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GEORGE AL BELISLE RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) TEMPORARILY INOPERABLE. | | | | AFTER PERFORMING A HPCI SYSTEM SURVEILLANCE, A HIGH POINT VENT ON THE HPCI | | PUMP DISCHARGE PIPING WAS OPENED TO CONFIRM THAT THE SYSTEM WAS FILLED. NO | | FLOW WAS OBTAINED FROM THE VENT AND, CONSEQUENTLY, THE DISCHARGE PIPING | | COULD NOT BE CONFIRMED FULL. HPCI WAS DECLARED INOPERABLE. | | | | THE SYSTEM STATIC PRESSURE WAS INCREASED FROM 30 PSI TO 38 PSI BY | | CONNECTING A DEMINERALIZED WATER SOURCE TO THE PUMP SUCTION. AT THAT POINT, | | FLOW WAS OBTAINED FROM THE HIGH POINT VENT AND CONTINUED TO FLOW AFTER THE | | DEMIN WATER SOURCE PRESSURE BOOST WAS REMOVED. THE LICENSEE SUSPECTS THAT | | THE HPCI PUMP DISCHARGE CHECK VALVE MAY HAVE BEEN STUCK CLOSED. THE HPCI | | SYSTEM VALVE LINEUP WAS RETURNED TO NORMAL AND HPCI DECLARED OPERABLE AT | | 0545 EDT. | | | | THE LICENSEE NOTES THAT THE DISCHARGE CHECK VALVE IS INSPECTED EVERY FIVE | | YEARS AND WAS LAST INSPECTED IN APRIL OF THIS YEAR. THE VALVE HAS NO | | PREVIOUS HISTORY OF PROBLEMS. A DEFICIENCY REPORT ON THE CHECK VALVE WAS | | GENERATED. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 27684 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: UNIVERSITY OF MICHIGAN, ANN ARBOR |NOTIFICATION DATE: 08/17/94 | | CITY: ANN ARBOR REGION: 3 |NOTIFICATION TIME: 13:17 [ET]| | COUNTY: STATE: MI |EVENT DATE: 08/05/94 | |LICENSE#: AGREEMENT: N |EVENT TIME: 12:00[EDT]| | DOCKET: |LAST UPDATE DATE: 08/17/94 | | +-----------------------------+ | |PERSON ORGANIZATION| | |THOMAS BURDICK RDO | | |ROBERT BAER EO | +------------------------------------------------+GAINEAU EPA | |NRC NOTIFIED BY: DRISCOLL |BANGART SP | |HQ OPS OFFICER: GREG SCARFO | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |BAB2 20.2201(a)(1)(ii) LOST/STOLEN LNM>10X | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOW-LEVEL WASTE FROM THE UNIVERSITY OF MICHIGAN WAS INADVERTENTLY DEPOSITED | | AT AN INCINERATOR IN DAYTON, OHIO. | | | | APPROXIMATELY 15 DRUMS OF LOW LEVEL WASTE FROM THE UNIVERSITY OF MICHIGAN | | WAS INADVERTENTLY SHIPPED TO THE WASTE MANAGEMENT MEDICAL SERVICES | | INCINERATOR OF DAYTON, OHIO. THE TOTAL NUMBER OF 55-GALLON DRUMS WAS | | TRANSPORTED TO THE INCINERATOR IN THREE SEPARATE SHIPMENTS ON THREE | | DIFFERENT DATES. THE FIRST SHIPMENT OCCURRED ON 07/08/93 AND CONSISTED OF | | ONE 55-GALLON DRUM HOLDING 90 MICROCURIES OF TRITIUM. THE SECOND SHIPMENT | | OCCURRED ON 04/29/93 AND CONSISTED OF SIX 55-GALLON DRUMS CONTAINING 621 | | MICROCURIES OF TRITIUM AND 795 MICROCURIES OF CARBON-14. THE THIRD | | SHIPMENT OCCURRED ON 07/01/94 AND CONSISTED OF 366 MICROCURIES OF TRITIUM | | AND 795 MICROCURIES OF CARBON-14. EACH SHIPMENT WAS LESS THAN THE APPENDIX | | C LIMITS. | | | | THESE SHIPMENTS HAVE BEEN ATTRIBUTED TO PERSONNEL ERROR. SEVERAL | | CORRECTIVE ACTIONS ARE BEING IMPLEMENTED INCLUDING RETRAINING OF THE | | RADIATION WASTE PROCESSING STAFF, RE-DRAFT OF WASTE PROCESSING PROCEDURE, | | ESTABLISHMENT OF A QUALITY ASSURANCE PROGRAM FOR WASTE MANAGEMENT, | | RE-ORGANIZATION OF THE WASTE MANAGEMENT FILING SYSTEM, RE-ASSAY OF ALL 500 | | STORED DRUMS OF LOW-LEVEL WASTE, AND THE RE-LABELLING OF ALL 500 DRUMS OF | | LOW-LEVEL WASTE. | | | | THE LICENSEE HAS INFORMED WASTE MANAGEMENT INCORPORATED, THE MICHIGAN | | DEPARTMENT OF PUBLIC HEALTH, AND UNIVERSITY OF MICHIGAN RADIATION POLICY | | COMMITTEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27685 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HADDAM NECK REGION: 1 |NOTIFICATION DATE: 08/17/94 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 20:28 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 08/17/94 | +------------------------------------------------+EVENT TIME: 20:15[EDT]| |NRC NOTIFIED BY: GLADDING |LAST UPDATE DATE: 08/17/94 | |HQ OPS OFFICER: GREG SCARFO +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG 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 30 POWER OPERATION | 30 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A LARGE BREAK LOCA ANALYSIS DETERMINED THAT THE PEAK CLAD TEMPERATURE WOULD | | BE EXCEEDED WITH THE CURRENT ALLOWABLE RADIAL PEAKING FACTOR OF 1.6. A | | REDUCTION OF THE ALLOWABLE LIMIT HAS BEEN ADMINISTRATIVELY INSTITUTED. | | | | AS A RESULT OF A RE-ANALYSIS OF THE LARGE-BREAK LOCA ANALYSIS, IT WAS | | DETERMINED THAT THE PEAK CLAD TEMPERATURE WOULD EXCEED 2200 DEGREES F UNDER | | THE CURRENT ALLOWABLE THERMAL LIMITS INCLUDING A RADIAL PEAKING FACTOR OF | | 1.6. ACCOUNTING FOR THE CURRENT CORE CONDITIONS AT THIS POINT IN THIS | | CYCLE, A WESTINGHOUSE PRELIMINARY ANALYSIS INDICATES THAT A RADIAL PEAKING | | FACTOR OF 1.44 WOULD LIMIT THE PEAK CLADDING TEMPERATURE TO LESS THAN 1900 | | DEGREES F. THE LICENSEE HAS INSTITUTED SUCH A LIMIT FOR ALL CORE | | SURVEILLANCES (FLUX MAPS) FOR THE REMAINDER OF THIS CYCLE. | | | | LONG TERM CORRECTIVE ACTIONS MUST STILL BE DETERMINED. THE LICENSEE HAS | | INFORMED THE STATE AND LOCAL AUTHORITIES. THE LICENSEE INFORMED THE NRC | | RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+