U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/30/98 - 10/01/98 ** EVENT NUMBERS ** 34854 34855 34856 34857 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34854 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 09/30/98 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 05:07 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 09/30/98 | +------------------------------------------------+EVENT TIME: 02:06[CDT]| |NRC NOTIFIED BY: REED |LAST UPDATE DATE: 09/30/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GARY SHEAR 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 | A/R Y 100 POWER OPERATION | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAD A REACTOR SCRAM FROM 100% POWER ON A LOW REACTOR WATER LEVEL | | SIGNAL. | | | | THE PLANT HAD GROUP 2 AND GROUP 3 ISOLATIONS ALONG WITH THE LOW REACTOR | | LEVEL SCRAM. ALL RODS FULLY INSERTED WITH THE EXCEPTION OF ONE WHICH | | BOUNCED TO THE 02 POSITION. IT HAS BEEN FULLY INSERTED. NO SAFETY VALVES | | LIFTED, AND NO ECCS INITIATIONS OCCURRED. THE REACTOR WATER LEVEL | | INITIALLY DROPPED TO -20" AND SUBSEQUENTLY INCREASED TO +60.5". THE | | REACTOR FEED PUMPS TRIPPED ON REACTOR HIGH LEVEL, BUT LEVEL WAS RESTORED TO | | 30" WITH ONE REACTOR FEED PUMP RUNNING. REACTOR PRESSURE IS STABLE AT 920 | | LBS. THE GROUP 2 AND 3 ISOLATIONS HAVE BEEN RESET, AND THE UNIT IS IN A | | STABLE HOT SHUTDOWN CONDITION. | | | | A PRELIMINARY INVESTIGATION HAS THE CAUSE OF THIS EVENT DUE TO AN OUT OF | | SERVICE WHICH WAS IN PROGRESS FOR THE "1A" REACTOR FEED PUMP. THIS OUT OF | | SERVICE REQUIRED ISOLATING THE FLOW INDICATOR FOR THE "1A" REACTOR FEED | | PUMP. AS IT WAS TAKEN OUT OF SERVICE, THE INDICATOR FAILED HIGH. THIS MAY | | HAVE AFFECTED THE FEED FLOW PORTION OF THE 3 ELEMENT LEVEL CONTROL, | | RESULTING IN THE LOW LEVEL CONDITION. THE LICENSEE IS CONTINUING ITS | | INVESTIGATION. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 34855 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: DETROIT WATER AND SEWAGE DEPARTMENT |NOTIFICATION DATE: 09/30/98 | | CITY: DETROIT REGION: 3 |NOTIFICATION TIME: 10:54 [ET]| | COUNTY: STATE: MI |EVENT DATE: 09/29/98 | |LICENSE#: 21-23397-1 AGREEMENT: N |EVENT TIME: 15:30[EDT]| | DOCKET: |LAST UPDATE DATE: 09/30/98 | | +-----------------------------+ | |PERSON ORGANIZATION| | |GARY SHEAR RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: MANSOOR | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE DETROIT WATER AND SEWAGE DEPARTMENT WAS NOTIFIED(AT 1610) BY THE | | DETROIT FIRE DEPARTMENT THAT THEY HAD RECEIVED AN ANONYMOUS CALL ABOUT A | | NUCLEAR GAUGE THAT WAS AT THE GRATIOT AND RIPELLE INTERSECTION. THE FIRE | | DEPARTMENT RETRIEVED THE DEVICE AND DISCOVERED IT BELONGED TO THE WATER AND | | SEWAGE DEPARTMENT. IT WAS A CPN PORTABLE SEALED SOURCE CONTAINING 10 | | MILLICURIES OF CESIUM-137 AND 50 MILLICURIES OF BERYLLIUM/AMERICIUM-241. A | | VISUAL INSPECTION OF THE DEVICE WAS MADE AT THE FIRE STATION AND NO DAMAGE | | WAS DETECTED. THE DEVICE WAS THEN TAKEN BACK TO THE WATER AND SEWAGE | | DEPARTMENT FACILITIES AND SURVEYED WITH A SURVEY METER AND NO RADIATION WAS | | DETECTED. THEY WILL DO A FOLLOW UP SMEAR TEST. | | | | THE DEVICE APPEARS TO HAVE BEEN STOLEN OUT OF A WATER AND SEWAGE DEPARTMENT | | TRUCK. THE DRIVER WAS RETURNING TO THE FACILITY TO REPORT THE DEVICE | | MISSING FROM HIS TRUCK. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34856 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: THREE MILE ISLAND REGION: 1 |NOTIFICATION DATE: 09/30/98 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 14:09 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP |EVENT DATE: 09/30/98 | +------------------------------------------------+EVENT TIME: 13:20[EDT]| |NRC NOTIFIED BY: JOHN SCHORK |LAST UPDATE DATE: 09/30/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN CARUSO 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 +------------------------------------------------------------------------------+ | IMPROPERLY INSTALLED THERMOLAG FIRE BARRIER | | | | DURING THE REMOVAL OF THERMOLAG MATERIAL, A FIRE RESISTANT MATERIAL THAT | | WAS INSTALLED IN 1987 TO MEET THE REQUIREMENTS OF 10 CFR PART 50, APPENDIX | | R, WORKERS OBSERVED THAT SEVERAL PORTIONS OF FIRE BARRIER "1 FHC-FB-06" | | LOCATED IN FIRE ZONE FH-FZ-1 IN THE 281' ELEVATION OF THE TMI-1 FUEL | | HANDLING BUILDING DID NOT HAVE REQUIRED FILLETS OF TROWEL GRADE MATERIAL | | 330-1. THE THERMOLAG WAS BEING INSPECTED IN PREPARATION FOR ITS REPLACEMENT | | WITH MECATISS. | | | | THE CONTROL ROOM WAS NOTIFIED AND A FIRE WATCH WAS POSTED IN ACCORDANCE | | WITH THE SITE FIRE PROTECTION PROGRAM PROCEDURE. REPAIRS WERE MADE TO THE | | NONCONFORMING SEAMS. AT 1320, THE PLANT REVIEW GROUP CONCLUDED A REVIEW OF | | THE NONCONFORMING CONDITION AND DETERMINED THAT THE CONDITION WAS | | IMMEDIATELY REPORTABLE TO THE NRC IN ACCORDANCE WITH 10CFR50.72(b)(1)(ii) | | AS A CONDITION OUTSIDE OF THE DESIGN BASIS OF THE PLANT AND AS A SUPPLEMENT | | TO EARLIER SIMILAR NOTIFICATIONS. THE CONDITION WAS DETERMINED TO BE | | REPORTABLE BECAUSE THE FIRE BARRIER DID NOT CONFORM TO ITS DESIGN BASIS AND | | THERE WAS REASONABLE JUSTIFICATION THAT THE NONCONFORMING CONDITION WAS NOT | | THE RESULT OF AGE-RELATED DEGRADATION BUT RATHER AN INCORRECT INSTALLATION. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34857 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 10/01/98 | |UNIT: [ ] [2] [ ] STATE: AL |NOTIFICATION TIME: 03:23 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 10/01/98 | +------------------------------------------------+EVENT TIME: 00:47[CDT]| |NRC NOTIFIED BY: DAVENPORT |LAST UPDATE DATE: 10/01/98 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ANN BOLAND 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 | A/R Y 100 POWER OPERATION | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAD A REACTOR SCRAM FROM 100% POWER DUE TO A MAIN GENERATOR TRIP. | | | | THIS OCCURRED WHEN THE STATOR COOLANT SYSTEM TEMPERATURE CONTROL VALVE | | FAILED, CAUSING THE MAIN GENERATOR STATOR OUTLET TEMPERATURE TO REACH ITS | | HIGH TEMPERATURE SETPOINT OF 81øC FOR >70 SECONDS. THIS CONDITION MAKES UP | | A TWO OUT OF THREE LOGIC CAUSING A MAIN GENERATOR TRIP WHICH RESULTED IN AN | | AUTOMATIC REACTOR SCRAM. THE RESULTING SCRAM CAUSED WATER LEVEL TO GO | | BELOW THE LOW LEVEL SETPOINT WHICH GENERATED A REDUNDANT SCRAM SIGNAL AND | | INITIATED THE PCIS FUNCTION FOR PCIS GROUPS 2(PRIMARY CONTAINMENT), | | 3(RWCU), 6(SECONDARY CONTAINMENT) AND 8(TIP SYSTEM). THE RECIRCULATION | | PUMP TRIP ON EOC-RPT ACTUATION OCCURRED AS EXPECTED ON THE MAIN TURBINE | | TRIP. ALL RODS FULLY INSERTED, NO SAFETY RELIEF VALVES LIFTED AND NO ECCS | | INITIATED. THEY ARE CONTINUING THE EVALUATION OF THIS EVENT. | | | | THE RESIDENT INSPECTOR WAS NOTIFIED. | | | +------------------------------------------------------------------------------+