U.S. Nuclear Regulatory Commission Operations Center Event Reports For 04/24/95 - 04/25/95 ** EVENT NUMBERS ** 28672 28686 28718 28719 28720 28721 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28672 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NINE MILE POINT REGION: 1 |NOTIFICATION DATE: 04/12/95 | |UNIT: [ ] [2] [ ] STATE: NY |NOTIFICATION TIME: 18:40 [ET]| |RX TYPE: [1] GE-2,[2] GE-5 |EVENT DATE: 04/12/95 | +------------------------------------------------+EVENT TIME: 15:53[EDT]| |NRC NOTIFIED BY: FREGEAU |LAST UPDATE DATE: 04/24/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MICHAEL MODES RDO | |AINB 50.72(b)(2)(iii)(B) POT RHR INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE RUNNING RHR PUMP TRIPPED WHEN A FUSE WAS REMOVED FOR A TAGOUT, CAUSING | | A BRIEF LOSS OF SHUTDOWN COOLING. | | | | WHILE HANGING A RED MARK-UP (TAG-OUT FOR PERSONNEL PROTECTION), THE ON-LINE | | RESIDUAL HEAT REMOVAL PUMP (2RHS*PIB) TRIPPED. IT IS SUSPECTED THAT THE | | REMOVAL OF A FUSE IN THE RESIDUAL HEAT REMOVAL SUCTION VALVE POSITION | | INDICATION LOGIC CIRCUITRY CAUSED THE PUMP TO TRIP. THE FUSE WAS | | RE-INSTALLED AND THE PUMP WAS RE-STARTED. | | | | SHUTDOWN COOLING WAS OFF-LINE FOR 15 MINUTES. REACTOR COOLANT TEMPERATURE | | REACHED 97øF, A RISE OF APPROXIMATELY 4øF OVER THE 15 MINUTE PERIOD. UNIT | | 2 RECENTLY SHUTDOWN TO ENTER A REFUELING OUTAGE. | | | | THE LICENSEE WILL BE INVESTIGATING THE ROOT CAUSE OF THE EVENT. THE | | LICENSEE INFORMED THE RESIDENT INSPECTOR. | | | | ***UPDATE ON 4/24/95 @ 12:59 BY CONWAY TO GOULD*** THE LICENSEE IS | | RETRACTING THIS EVENT AFTER REVIEWING THE CIRCUMSTANCES OF THE EVENT AND | | REGULATORY GUIDANCE IN NUREG 1022 REV 1. THE OPERATOR REPLACEMENT OF THE | | REMOVED FUSE SHOULD NOT BE CONSIDERED A HEROIC ACTION AND THEY HAVE | | DETERMINED THAT THIS EVENT SHOULD NOT HAVE BEEN REPORTED UNDER 50.72. THE | | RI WAS INFORMED. REG 1 DUTY OFFICER (DURR) WAS NOTIFIED. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28686 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 04/15/95 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 01:27 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 04/15/95 | +------------------------------------------------+EVENT TIME: 00:30[EDT]| |NRC NOTIFIED BY: CROKE |LAST UPDATE DATE: 04/24/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WHITE RDO | |ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFETY-RELATED 125 VOLT DC BATTERY FAILED LOAD TEST. | | | | WHILE PERFORMING A LOAD PROFILE TEST OF THE "B" 125 VDC BATTERY, A LOW CELL | | VOLTAGE ALARM WAS RECEIVED AFTER APPROXIMATELY 1 MINUTE. THE TEST WAS | | IMMEDIATELY TERMINATED. DURING VISUAL INSPECTION OF THE BATTERIES, | | TECHNICIANS DISCOVERED THAT THE INNER TIER CONNECTION PLATE FOR THE | | POSITIVE TERMINAL OF CELL #11 WAS LOOSE. (THE TWO BOLTS WHICH ATTACH THE | | PLATE TO THE BATTERY TERMINAL WERE ONLY FINGER-TIGHT.) THE LICENSEE STATED | | THAT BECAUSE OF THE LOOSE CONNECTION, THE BATTERY WOULD HAVE BEEN UNABLE TO | | PROVIDE THE REQUIRED CURRENT SPECIFIED IN THE FIRST MINUTE OF THE LOAD | | PROFILE. | | | | THE LICENSEE IS CURRENTLY INVESTIGATING THE CAUSE OF THE LOOSE CONNECTION. | | THE "A" BATTERY WAS TESTED SATISFACTORILY APPROXIMATELY 2 WEEKS AGO, AND | | THE "B" BATTERY TESTED SATISFACTORILY DURING THE LAST LOAD PROFILE TEST | | PERFORMED IN 1993. THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE | | LICENSEE. | | | | * * * UDATE AT 1032 ON 4/24/95 BY CROKE TAKEN BY WEAVER * * * | | THE LICENSEE IS RETRACTING THIS EVENT BASED UPON AN EVALUATION WHICH | | CONCLUDED THAT THE BATTERY WOULD HAVE BEEN ABLE TO PERFORM ALL REQUIRED | | FUNCTIONS AND THEREFORE WAS OPERABLE DURING THE PREVIOUS CYCLE. HOO | | NOTIFIED THE R1DO (DURR). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28718 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRUNSWICK REGION: 2 |NOTIFICATION DATE: 04/24/95 | |UNIT: [1] [ ] [ ] STATE: NC |NOTIFICATION TIME: 05:41 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 04/24/95 | +------------------------------------------------+EVENT TIME: 01:45[EDT]| |NRC NOTIFIED BY: GLENN LONG |LAST UPDATE DATE: 04/24/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CAUDLE JULIAN 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ESF ACTUATION - PARTIAL PRIMARY CONTAINMENT ISOLATION OF GROUPS 2,6 & 8 | | | | AT 0145 A DIVISION II GROUP 2 (OUTBOARD FLOOR DRAIN AND EQUIPMENT DRAIN), A | | DIVISION II GROUP 6 (CONTAINMENT ATMOSPHERE CONTROL) & A DIVISION II GROUP | | 8 (SHUTDOWN COOLING) ISOLATION OCCURRED. THE ISOLATION SIGNAL WAS | | INITIATED DUE TO AN EXISTING CLEARANCE WHICH HAD DEENERGIZED THE REACTOR | | VESSEL WATER LOW LEVEL CHANNEL A2 INPUT TO THE PCIS IN CONJUNCTION WITH THE | | DEENERGIZATION OF CHANNEL B2 TO SUPPORT RESTORATION FROM THE VESSEL | | DRAINDOWN. THE REACTOR IS DEFUELED. | | | | ALTHOUGH THE CLEARANCE CAUTIONED THAT A PARTIAL TRIP WOULD BE RECEIVED, | | MAINTENANCE PERSONNEL FAILED TO RECOGNIZE THE EFFECT OF BOTH ACTIVITIES AT | | THE SAME TIME. ALL APPROPRIATE ISOLATION VALVES CLOSED WITH THE EXCEPTION | | OF THOSE ALREADY CLOSED OR UNDER EQUIPMENT CLEARANCE. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28719 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: SCANDIA PLASTICS |NOTIFICATION DATE: 04/24/95 | | CITY: SHEBOYGAN REGION: 3 |NOTIFICATION TIME: 12:01 [ET]| | COUNTY: STATE: WI |EVENT DATE: 04/20/95 | |LICENSE#: AGREEMENT: N |EVENT TIME: 11:30[CDT]| | DOCKET: |LAST UPDATE DATE: 04/24/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JORDAN RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: HARRIS | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE SCANDIA PLASTICS COMPANY, LOCATED IN SHEBOYGAN, WI, REPORTED THAT THEY | | COULD NOT FIND THE FOIL FROM A NUCLESTAT (P2001-6") STATIC ELIMINATION | | DEVICE CONTAINING 15 MILLICURIES (AS OF 8/94) OF POLONIUM-210. | | | | THE POLONIUM-210 FOIL WAS MISSING WHEN THE END BLOCK CAME OFF THE UNIT | | BECAUSE OF A MISSING MOUNTING SCREW. THEY SURVEYED THE MACHINE THE UNIT HAD | | BEEN INSTALLED ON, AND THE PREVIOUS MACHINE ON WHICH IT HAD BEEN INSTALLED, | | WITH AN ALPHA COUNTER. THEY ALSO SURVEYED 4 WEEKS OF MATERIAL THAT WAS | | SWEPT OFF THE FLOOR AND RE-GRIND FROM THE MACHINE, ALONG WITH INTERVIEWING | | THE MACHINE OPERATORS TO SEE IF ANYONE HAD SEEN IT. THEY ARE ALSO DOING | | SWAB TESTS AND SENDING SAMPLES OF THE RE-GRIND AND SWEPT UP MATERIALS TO | | NRD INC.(COMPANY THAT LEASED THEM THE EQUIPMENT) FOR FURTHER TESTING. THEY | | HAVE HAD THIS DEVICE SINCE 8/94. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28720 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 04/24/95 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 13:46 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 04/24/95 | +------------------------------------------------+EVENT TIME: 11:07[EDT]| |NRC NOTIFIED BY: WALSH |LAST UPDATE DATE: 04/24/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JACK DURR 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT HAD A FULL REACTOR SCRAM WHILE IN A REFUELING OUTAGE WITH ONE ROD | | FULLY OUT. | | | | THIS OCCURRED WHEN UNIT 1 RECEIVED A FULL SCRAM DURING CONTROL ROD DRIVE | | FRICTION TESTING. THE SCRAM SIGNAL WAS DUE TO A SPIKE IN TWO INTERMEDIATE | | RANGE NEUTRON MONITORS, BUT THE CAUSE IS UNKNOWN AND BEING INVESTIGATED. | | CONTROL ROD 34-19 WAS THE ONLY ROD FULLY OUT AND IT FULLY INSERTED. THIS | | CONTROL ROD MOVEMENT CONSTITUTES AN UNPLANNED ESF ACTUATION. THE RI WAS | | INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28721 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: TSI INCORPORATED |NOTIFICATION DATE: 04/24/95 | | CITY: ST PAUL REGION: 3 |NOTIFICATION TIME: 13:55 [ET]| | COUNTY: STATE: MN |EVENT DATE: 04/24/95 | |LICENSE#: AGREEMENT: N |EVENT TIME: 00:00[CDT]| | DOCKET: |LAST UPDATE DATE: 04/24/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: WOOD |HODGE NRR | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TSI INCORPORATED, LOCATED IN ST. PAUL, MN, NOTIFIED THE NRC THAT THEY ARE | | SENDING LETTERS TO ALL IDENTIFIED OWNERS OF THE FOLLOWING INSTRUMENTS: | | | | | | VELOCICALC MODELS 8350, 8352, 8355, 8357 & 8360 | | AIR VELOCITY TRANSDUCER MODELS 8450, 8460 & 8470 | | | | | | IT HAS BEEN DETERMINED THAT THESE INSTRUMENTS, MANUFACTURED OR SERVICED | | BETWEEN 4/1/94 AND 4/19/95, HAVE BEEN IDENTIFIED TO HAVE AN ERROR IN HIGH | | AIR VELOCITY CALIBRATIONS AND TSI WILL RECALIBRATE THEM. | +------------------------------------------------------------------------------+