U.S. Nuclear Regulatory Commission Operations Center Event Reports For 08/25/98 - 08/26/98 ** EVENT NUMBERS ** 34674 34679 34680 34681 34682 34683 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34674 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BYRON REGION: 3 |NOTIFICATION DATE: 08/24/98 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 16:30 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/24/98 | +------------------------------------------------+EVENT TIME: 14:55[CDT]| |NRC NOTIFIED BY: AL CHRISTIANSON |LAST UPDATE DATE: 08/25/98 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PATRICK HILAND RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN 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 +------------------------------------------------------------------------------+ | THE STATION EXPERIENCED A LOSS OF > 25% OFFSITE SIRENS DUE TO SEVERE | | WEATHER. | | | | "AT 1455 CDT BYRON STATION WAS NOTIFIED BY ITS CONTRACTOR THAT 42 OFFSITE | | SIRENS [OF THE 93 TOTAL] ARE INOPERABLE AS A RESULT OF SEVERE WEATHER IN | | THE AREA. THIS CONSTITUTES A LOSS OF GREATER THAN 25% AND, THUS, A LOSS OF | | THE PUBLIC PROMPT NOTIFICATION SYSTEM. NO ESTIMATED TIME OF RECOVERY IS | | AVAILABLE." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | | | | ***UPDATE AT 0858 EDT 8/25/98 FROM CHRISTIANSON TO BAILEY*** | | | | AT 0744 CDT BYRON STATION WAS NOTIFIED BY ITS CONTRACTOR THAT LESS THAN 25% | | OF THE OFFSITE SIRENS ARE NOW INOPERABLE. THE PUBLIC PROMPT NOTIFICATION | | SYSTEM IS BACK IN SERVICE. | | | | THE LICENSEE WILL NOTIFY THE NRC RESIDENT INSPECTOR. THE NRC OPERATONS | | CENTER NOTIFIED THE R3DO (HILAND). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34679 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRUNSWICK REGION: 2 |NOTIFICATION DATE: 08/25/98 | |UNIT: [1] [2] [ ] STATE: NC |NOTIFICATION TIME: 06:12 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 08/25/98 | +------------------------------------------------+EVENT TIME: 05:20[EDT]| |NRC NOTIFIED BY: REINSBURROW |LAST UPDATE DATE: 08/26/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |LEN WERT RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |JOSE CALVO EO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION |DEPUY FEMA | |AEXT 50.72(b)(1)(iii) EXTERNAL THREAT | | |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 | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DECLARED AN UNUSUAL EVENT DUE TO A HURRICANE WARNING BEING | | ISSUED. | | | | THE LICENSEE MADE OFFSITE NOTIFICATIONS TO THE NORTH CAROLINA, BRUNSWICK | | COUNTY AND NEW HANOVER COUNTY WARNING POINTS THAT THE LICENSEE ISSUED A | | HURRICANE WARNING. PREPARATION FOR THE ARRIVAL OF HURRICANE BONNIE ARE | | UNDERWAY AT THE SITE. SITE EMERGENCY FACILITIES HAVE NOT BEEN ACTIVATED. | | | | THE RESIDENT INSPECTOR WAS NOTIFIED. | | | | * * * UPDATE 1256EDT ON 8/25/98 FROM M. FITZPATRICK TO S. SANDIN * * * | | | | THE LICENSEE COMMENCED A REACTOR SHUTDOWN FOR BOTH UNIT 1 AND UNIT 2 AT | | 1221EDT SO AS TO ACHIEVE COLD SHUTDOWN CONDITIONS PRIOR TO HURRICANE FORCE | | WINDS REACHING THE SITE. LICENSEE PLANS TO AUGMENT STAFF AT BOTH THE TSC | | AND EOF AT 2300EDT. THE REGION 2 IRC WILL ENTER MONITORING AT 2000EDT. THE | | LICENSEE INFORMED THE RESIDENT INSPECTOR. NOTIFIED R2DO(WERT) AND | | EO(STOLZ). | | | | * * * UPDATE 1500EDT ON 8/25/98 COMMISSIONER'S ASSISTANTS BRIEFING * * * | | | | A COMMISSIONER'S ASSISTANTS BRIEFING WAS CONDUCTED BY R2 REGIONAL | | ADMINISTRATOR (REYES). | | | | * * * UPDATE 1650EDT ON 8/25/98 FROM M. FITZPATRICK TO S. SANDIN * * * | | | | UNITS 1 AND 2 ARE CURRENTLY AT 24% AND 37% POWER, RESPECTIVELY. THE | | LICENSEE ANTICIPATES BOTH UNITS WILL BE OFFLINE IN ABOUT 1 HOUR AND 30 | | MINUTES. NOTIFIED R2DO (WERT), EO (STOLZ) AND IRD (CONGEL). | | | | * * * UPDATE 2030EDT ON 8/25/98 FROM REGION 2 (BOB HAAG) TO S. SANDIN * * * | | | | THE REGION II RA(REYES) PLACED THE AGENCY IN MONITORING PHASE OF NORMAL | | MODE AT 2000EDT. NOTIFIED CHAIRMAN JACKSON'S OFFICE (VIRGILIO), EDO'S | | STAFF REGION 2 (TSCHILTZ) AND RCT (HIMES). | | | | * * * UPDATE 2055EDT ON 8/25/98 FROM McCLENDIS TO S. SANDIN * * * | | | | UNIT 1 WAS SHUTDOWN AT 1752EDT AND COOLING DOWN. UNIT 2 MANUALLY SCRAMMED | | IN THE PAST FEW MINUTES AND IS IN HOT SHUTDOWN. BOTH UNITS SHOULD REACH | | COLD SHUTDOWN AT 0100EDT (UNIT 1) AND 0230EDT (UNIT 2) ON 8/26/98. NOTIFIED | | R2IRC (VIAS), RCT (HIMES) AND EO (THOMAS). | | | | * * * UPDATE 2129EDT ON 8/25/98 FROM D. JESTER TO S. SANDIN * * * | | | | VARIOUS EXPECTED ESF ACTUATIONS OCCURRED ON BOTH UNITS DURING SHUTDOWN DUE | | TO MANUAL SCRAM INSERTION AT A HIGHER THAN NORMAL POWER LEVEL. | | | | "ON AUGUST 25, 1998 AT 1752EDT PRIMARY CONTAINMENT GROUPS 2, 6 AND 8 | | ISOLATIONS WERE RECEIVED FOLLOWING A MANUAL REACTOR SCRAM. THE REACTOR | | SCRAM WAS INSERTED ON UNIT 1 AS PART OF THE HURRICANE BONNIE ARRIVAL | | PREPARATIONS. A SCRAM AUTOMATICALLY RESETS THE REACTOR WATER LEVEL SET | | POINT TO 170 INCHES. REACTOR WATER LEVEL LOWERED TO 161 INCHES. THIS IS | | BELOW THE REACTOR WATER LEVEL LOW LEVEL ONE SETPOINT OF 166 INCHES. THIS IS | | A NORMAL LEVEL TRANSIENT FOLLOWING A REACTOR SCRAM AND WAS ANTICIPATED BY | | THE OPERATING CREW. ALL REQUIRED ISOLATIONS OCCURRED AS A RESULT OF THE | | REACTOR WATER LEVEL LOW LEVEL ONE INITIATION SIGNAL. REACTOR WATER LEVEL | | IMMEDIATELY SWELLED ABOVE THE LOW LEVEL ONE SETPOINT. GROUP 2 ISOLATION | | VALVES INCLUDE DRYWELL EQUIPMENT AND FLOOR DRAINS, TRAVERSING INCORE PROBE, | | RESIDUAL HEAT REMOVAL (RHR) DISCHARGE ISOLATION TO RADWASTE AND RHR PROCESS | | SAMPLING VALVES. GROUP 6 ISOLATION VALVES INCLUDE CONTAINMENT ATMOSPHERE | | CONTROL SYSTEM AND POST ACCIDENT VALVES. GROUP 8 ISOLATION VALVES INCLUDE | | RHR SYSTEM SHUTDOWN COOLING ISOLATION VALVES [THESE VALVES WERE CLOSED | | PRIOR TO THE ISOLATION SIGNAL]. AT 2049EDT PRIMARY CONTAINMENT GROUPS 2, 6 | | AND 8 WERE RECEIVED ON UNIT 2 FOLLOWING A MANUAL REACTOR SCRAM AS PART OF | | THE HURRICANE ARRIVAL PREPARATIONS. THE ACTIONS WERE IDENTICAL TO WHAT WAS | | EXPERIENCED ON UNIT 1. POWER ON UNIT 2 WAS 22% PRIOR TO THE SCRAM. | | | | "[THE] INITIAL SAFETY SIGNIFICANCE [IS] MINIMAL [IN THAT] ALL SYSTEMS | | RESPONDED AS DESIGNED FROM THE REACTOR WATER LEVEL LOW LEVEL ONE INITIATION | | SIGNAL. | | | | "[SINCE THE] ISOLATIONS OCCURRED AS DESIGNED, NO CORRECTIVE ACTIONS [ARE] | | REQUIRED. THE REACTORS WILL REMAIN SHUTDOWN UNTIL AFTER HURRICANE BONNIE | | PASSES." | | | | DURING A NORMAL REACTOR SHUTDOWN FOR AN OUTAGE REACTOR POWER IS REDUCED TO | | ABOUT 15% PRIOR TO INSERTING A SCRAM. ALL ISOLATIONS HAVE BEEN RESET. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. NOTIFIED R2IRC(HAAG). | | | | * * * UPDATE 2350EDT ON 8/25/98 FROM GREGG LUDLAM TO FANGIE JONES * * * | | | | AS OF 2340EDT, THE TECHNICAL SUPPORT CENTER (TSC) HAS TAKEN OVER | | COMMUNICATIONS WITH THE NRC. THE TSC, OPERATIONS SUPPORT CENTER (OSC), AND | | THE EMERGENCY OFFSITE FACILITY (EOF) ARE FULLY MANNED AND WILL REMAIN SO | | UNTIL THE EVENT IS OVER. NOTIFIED R2IRC (HAAG). | | | | * * * UPDATE 0350 8/26/98 FROM MILLER TAKEN BY STRANSKY * * * | | | | UNIT 1 REACHED COLD SHUTDOWN AT 0132; UNIT 2 AT 0335. NOTIFIED R2IRC | | (MORRISSEY). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34680 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: THREE MILE ISLAND REGION: 1 |NOTIFICATION DATE: 08/25/98 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 16:57 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP |EVENT DATE: 08/25/98 | +------------------------------------------------+EVENT TIME: 16:40[EDT]| |NRC NOTIFIED BY: JOHN SCHORK |LAST UPDATE DATE: 08/25/98 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM COOK 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 +------------------------------------------------------------------------------+ | LICENSEE IDENTIFIED A CONDITION INVOLVING NON-CONSERVATIVE ASSUMPTIONS USED | | IN THE AC VOLTAGE SUPPLY STUDY. | | | | "AT 1640 HOURS ON AUGUST 25, 1998, GPU NUCLEAR DETERMINED THAT A CONDITION | | OUTSIDE THE DESIGN BASIS FOR THE TMI-1 NUCLEAR GENERATING STATION EXISTED. | | THE EXISTING AC VOLTAGE STUDY WAS FOUND TO BE NON-CONSERVATIVE DUE TO USE | | OF INCORRECT IMPEDANCE DATA FOR THE 5000V (NOMINAL RATING) BUS DUCT. THE | | BUS DUCT RUNS FROM THE AUXILIARY TRANSFORMER TERMINALS TO THE IN-PLANT 4160 | | VOLT BUSES. AFTER ACCOUNTING FOR THIS ERROR IT WAS FOUND THAT THE GRID | | VOLTAGE AT WHICH SEPARATION COULD OCCUR WOULD BE ABOVE THE VOLTAGE | | SPECIFIED IN PLANT DESIGN CRITERIA. THE STUDY ASSUMES WORST CASE BALANCE | | OF PLANT LOADING AND LARGEST EXPECTED LOCA LOADING ON THE SAFETY BUS. WHILE | | THE SAFETY BUS MAY SEPARATE FROM OFFSITE POWER EARLIER THAN PLANNED, THE | | SAFETY LOADS WOULD BE OPERABLE FROM THE ON-SITE SOURCE. | | | | "THE NORMAL LINEUP IS WITH TWO TRANSFORMERS FOR BOTH NORMAL OPERATION AND | | ACCIDENT CONDITION. THE ERROR HAS MINIMAL EFFECT ON THE TWO TRANSFORMER | | STUDY. | | | | "THE ANALYSIS ERROR HAD NO IMPACT ON THE OPERABILITY OF PLANT STRUCTURES, | | SYSTEMS OR COMPONENTS. IN THE EVENT A LOCA OCCURRED WHILE THE PLANT WAS | | OPERATING ON A SINGLE TRANSFORMER, EVEN IF THE SAFETY BUS SEPARATED FROM | | OFFSITE POWER, THE SAFETY LOADS WOULD BE PICKED UP BY THE EMERGENCY ON-SITE | | POWER SOURCE, THE EMERGENCY DIESEL GENERATORS. | | | | "INTERIM CORRECTIVE ACTION WAS TAKEN TO RESTORE THE PLANT TO ITS DESIGN | | BASIS. PLANT OPERATORS WERE DIRECTED TO OPERATE NO MORE THAN 5 OF THE | | AVAILABLE 6 CIRCULATING WATER PUMPS IN THE EVENT THE PLANT WENT TO SINGLE | | TRANSFORMER OPERATION. THIS GUIDANCE WILL BE INCORPORATED INTO PLANT | | PROCEDURES. OPERATION WITH ONLY 5 CIRCULATING WATER PUMPS (BALANCE OF PANT | | EQUIPMENT) WILL REDUCE THE ELECTRICAL DEMAND AND PRELIMINARY ANALYSIS | | RESULTS INDICATE THAT WITH ONLY 5 CIRCULATING WATER PUMPS OPERATING IN THE | | EVENT OF A LOCA OCCURRING SIMULTANEOUS WITH SINGLE TRANSFORMER OPERATION, | | THE PLANT WOULD NOT SEPARATE FROM THE OFFSITE POWER SOURCE. | | | | "LONG TERM CORRECTIVE ACTION WILL BE DETERMINED WHEN THE RE-ANALYSIS OF THE | | AC VOLTAGE REGULATION IS COMPLETED." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34681 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 08/25/98 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 17:44 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 08/25/98 | +------------------------------------------------+EVENT TIME: 17:44[EDT]| |NRC NOTIFIED BY: JOHN BALLETTA |LAST UPDATE DATE: 08/25/98 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM COOK RDO | |AEXT 50.72(b)(1)(iii) EXTERNAL THREAT | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE IS MAKING A 1 HOUR REPORT PER 10CFR50.72(b)(1)(iii) DUE TO | | HURRICANE BONNIE. | | | | THE LICENSEE IS MAKING A 1 HOUR NOTIFICATION BASED ON SUSTAINED WINDS | | EXCEEDING 100MPH WITHIN 500 MILES OF THE SITE. THE LICENSEE WILL INFORM | | THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34682 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: THREE MILE ISLAND REGION: 1 |NOTIFICATION DATE: 08/25/98 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 18:05 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP |EVENT DATE: 08/25/98 | +------------------------------------------------+EVENT TIME: 17:45[EDT]| |NRC NOTIFIED BY: JOHN SCHORK |LAST UPDATE DATE: 08/25/98 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM COOK 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 +------------------------------------------------------------------------------+ | LICENSEE IDENTIFIED A CONDITION INVOLVING AN IMPROPERLY INSTALLED FIRE | | BARRIER USED TO PROTECT SAFE SHUTDOWN ELECTRICAL WIRING. | | | | "AT 1745 HOURS ON AUGUST 25, 1998, GPU NUCLEAR DETERMINED THAT A CONDITION | | OUTSIDE THE DESIGN BASIS OF THE PLANT EXISTED. A THERMOLAG FIRE BARRIER | | INSTALLED TO PROTECT CIRCUITS ESSENTIAL FOR SAFE SHUTDOWN OF THE PLANT WAS | | FOUND TO HAVE AN OPEN SEAM 5 INCHES LONG AND FROM 1/4 TO 1/2 INCH WIDE | | WHERE THE FIRE BARRIER ABUTS AGAINST ANOTHER SECTION OF THERMOLAG. IT IS | | CONSIDERED PROBABLE THAT THE BARRIER HAD BEEN IMPROPERLY INSTALLED AND THAT | | THE CONDITION HAD EXISTED SINCE THE INITIAL INSTALLATION OF THERMOLAG | | DURING THE LATE 1980's. | | | | "THE MISSING PORTION OF THE REQUIRED FIRE BARRIER WAS DETERMINED TO BE A | | CONDITION OUTSIDE THE DESIGN BASIS IN ACCORDANCE WITH THE REQUIREMENTS OF | | 10 CFR 50.72(b)(1)(ii)(B) AND THE GUIDANCE PROVIDED IN NUREG 1022. | | | | "IN ACCORDANCE WITH THE GPU NUCLEAR 10 CFR 50 APPENDIX B CORRECTIVE ACTION | | PROCESS AND THE TMI FIRE PROTECTION PROGRAM, THE DEFICIENT CONDITION WAS | | DOCUMENTED IN THE CORRECTIVE ACTION PROGRAM, A FIRE WATCH WAS IMMEDIATELY | | ESTABLISHED AND REPAIRS WERE INITIATED. TROWEL GRADE MATERIAL WAS USED TO | | CLOSE THE OPEN SEAM. THE REPAIR WILL BE COMPLETED UPON COMPLETION OF THE | | CURING TIME FOR THE TROWEL GRADE MATERIAL (APPROXIMATELY 24 HOURS). | | | | "LONG TERM CORRECTIVE ACTION WILL BE TO REPLACE THE THERMOLAG FIRE BARRIER | | WITH MECATISS." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 34683 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PORTSMOUTH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 08/25/98 | | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 22:33 [ET]| |COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 08/25/98 | | 6903 ROCKLEDGE DRIVE |EVENT TIME: 20:30[EDT]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 08/25/98 | | CITY: PIKETON REGION: 3 +-----------------------------+ | COUNTY: PIKE STATE: OH |PERSON ORGANIZATION| |LICENSE#: GDP-2 AGREEMENT: N |PATRICK HILAND RDO | | DOCKET: 0707002 |JOHN GREEVES EO | +------------------------------------------------+FRANK CONGEL IRD | |NRC NOTIFIED BY: GREG BARCH | | |HQ OPS OFFICER: FANGIE JONES | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NBNL RESPONSE-BULLETIN | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | 4 HOUR NRC BULLETIN 91-01 REPORT | | | | DURING A REVIEW OF NUCLEAR CRITICALITY SAFETY APPROVALS (NCSA) THAT WERE | | NOT APPROVED IN ACCORDANCE WITH PLANT REQUIREMENTS, THE FACILITY DISCOVERED | | ONE NCSA (X-330_009.001) HAD CONTROLS THAT WERE DIFFERENT THAN THOSE FOUND | | IN THE IMPLEMENTING PROCEDURES. THE NCSA CONTROLS WERE LESS CONSERVATIVE | | THAN THE IMPLEMENTING PROCEDURE EXCEPT FOR ENRICHMENT. THE NCSA LIMIT WAS | | TO AN ASSAY OF 3.5% ENRICHMENT AND THE IMPLEMENTING PROCEDURE WAS TO AN | | ASSAY OF 10% ENRICHMENT. THE PROCEDURE HAS A STOP WORK ORDER PLACED ON IT | | UNTIL RESOLUTION OF THIS ISSUE. THERE WAS NO LOSS OF HAZARDOUS/RADIOACTIVE | | MATERIAL OR RADIOACTIVE/RADIOLOGICAL CONTAMINATION EXPOSURE AS A RESULT OF | | THIS EVENT. | | | | THE FACILITY NOTIFIED THE NRC RESIDENT INSPECTOR AND THE ONSITE DEPARTMENT | | OF ENERGY REPRESENTATIVE. | +------------------------------------------------------------------------------+