U.S. Nuclear Regulatory Commission Operations Center Event Reports For 12/05/94 - 12/06/94 ** EVENT NUMBERS ** 28107 28108 28109 28110 28111 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28107 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VERMONT YANKEE REGION: 1 |NOTIFICATION DATE: 12/05/94 | |UNIT: [1] [ ] [ ] STATE: VT |NOTIFICATION TIME: 09:32 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 12/05/94 | +------------------------------------------------+EVENT TIME: 08:50[EST]| |NRC NOTIFIED BY: DAVID HALLONQUIST |LAST UPDATE DATE: 12/05/94 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LAWRENCE DOERFLEIN RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION (HPCI) DECLARED INOPERABLE DURING HPCI | | VALVE SURVEILLANCE TESTING. | | | | "AT 0850EST ON 12/5/94 DURING HPCI VALVE SURVEILLANCE TESTING, HPCI STOP | | AND GOVERNOR VALVES FAILED TO CLOSE WHEN THE TURBINE REMOTE TRIP PUSH | | BUTTON WAS DEPRESSED." | | | | THIS PLACES THE UNIT IN THE 7 DAY TS LCO A/S 3.5.E.2 WHICH REQUIRES THAT | | ALL OF THE ACTIVE COMPONENTS OF THE AUTOMATIC DEPRESSURIZATION SYSTEM | | (ADS), CORE SPRAY (CS), LOW PRESSURE COOLANT INJECTION (LPCI) AND REACTOR | | CORE ISOLATION COOLING (RCIC) SYSTEM BE OPERABLE. THE LICENSEE WILL CONDUCT | | AN OPERABILITY DEMONSTRATION OF ADS AS REQUIRED BY TS WITHIN THE NEXT 24 | | HOURS. THE CAUSE OF THE HPCI FAILURE IS UNDER INVESTIGATION. THE LICENSEE | | INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28108 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SUMMER REGION: 2 |NOTIFICATION DATE: 12/05/94 | |UNIT: [1] [ ] [ ] STATE: SC |NOTIFICATION TIME: 16:15 [ET]| |RX TYPE: [1] W-3-LP |EVENT DATE: 12/05/94 | +------------------------------------------------+EVENT TIME: 15:31[EST]| |NRC NOTIFIED BY: ALLEN |LAST UPDATE DATE: 12/05/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |POTTER RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |CHAFFEE EO | |NRCS RCS LEAKAGE |HERSKO FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED DUE TO UNISOLABLE REACTOR COOLANT SYSTEM (RCS) | | LEAKAGE. | | | | DURING AN INSPECTION OF THE REACTOR BUILDING, THE LICENSEE DISCOVERED A | | LEAK ON THE SEAL INJECTION LINE FOR THE "C" REACTOR COOLANT PUMP. THE LEAK | | IS LOCATED AT A SOCKET WELD WHERE THE LINE ATTACHES TO THE PUMP SEAL | | HOUSING. THE LICENSEE ESTIMATES THAT THE LEAKAGE IS APPROXIMATELY 0.18-0.26 | | GPM, BASED ON TOTAL REACTOR BUILDING SUMP INLEAKAGE. ALL SAFETY EQUIPMENT | | IS AVAILABLE IF NEEDED. | | | | THE LICENSEE IS PROCEEDING TO COLD SHUTDOWN IN ORDER TO DEPRESSURIZE THE | | RCS IN ORDER TO REPAIR THE WELD. THE LICENSEE HAS BEEN IN A REFUELING | | OUTAGE SINCE SEPTEMBER. THE LICENSEE HAS NOTIFIED THE NRC RESIDENT | | INSPECTOR, AS WELL AS STATE AND LOCAL AGENCIES. A PRESS RELEASE IS | | PLANNED. THE LICENSEE WILL REMAIN IN THE UNUSUAL EVENT UNTIL THE RCS HAS | | BEEN DEPRESSURIZED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28109 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 12/05/94 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 17:35 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 12/05/94 | +------------------------------------------------+EVENT TIME: 17:00[EST]| |NRC NOTIFIED BY: STONUM |LAST UPDATE DATE: 12/05/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ESELGROTH RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 89 POWER OPERATION | 89 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATIONS MADE DUE TO SPILLAGE OF 1 PINT OF FUEL OIL ONSITE | | | | AT 1800 ON 12/4/94, WHILE TRANSFERRING FUEL OIL FOR THE HOUSE SERVICE | | BOILERS, APPROXIMATELY 1 PINT OF FUEL OIL WAS SPILLED ONTO A CONCRETE | | SURFACE ONSITE. THE OIL WAS IMMEDIATELY REMOVED. AT 1700 ON 12/5/94, THE | | ENVIRONMENTAL AFFAIRS DEPARTMENT NOTIFIED THE CONTROL ROOM THAT | | NOTIFICATIONS HAD BEEN MADE REGARDING THE FUEL OIL SPILL TO THE WESTCHESTER | | COUNTY DEPARTMENT OF HEALTH AND THE NEW YORK DEPARTMENT OF ENVIRONMENTAL | | CONSERVATION. THE NRC RESIDENT INSPECTOR WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28110 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 12/05/94 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 18:13 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 12/05/94 | +------------------------------------------------+EVENT TIME: 16:37[CST]| |NRC NOTIFIED BY: BRITZ |LAST UPDATE DATE: 12/05/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JORGENSEN 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 | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTROL ROD SEQUENCE DOES NOT MEET GE DESIGN ASSUMPTIONS FOR CONTROL ROD | | DROP ACCIDENTS | | | | DURING A REVIEW OF THE NEW UNIT 2 CONTROL ROD SEQUENCE, THE NUCLEAR | | ENGINEERING DEPARTMENT DISCOVERED THAT THE SEQUENCE DID NOT MEET THE BANKED | | POSITION WITHDRAWAL SEQUENCE (BPWS) SEQUENCING RULES CONTAINED IN GENERAL | | ELECTRIC DESIGN DOCUMENT NEDO-21231, "BANKED POSITION WITHDRAWAL SEQUENCE," | | SECTION 3.3. THIS DOCUMENT SPECIFIES THAT GROUP 5 CONTROL RODS (A | | PERIPHERAL GROUP) SHALL BE BANKED TOGETHER. | | | | SINCE 1985, QUAD CITIES HAS TREATED THE GROUP 5 CONTROL RODS AS TWO | | SEPARATE GROUPS (5A AND 5B), BANKING THEM SEPARATELY. THE LICENSEE | | BELIEVES THAT THIS MAY VIOLATE THE ASSUMPTIONS USED IN THE CONTROL ROD DROP | | ACCIDENT ANALYSIS. THIS PROBLEM DOES NOT APPLY TO DRESDEN OR LASALLE. SITE | | AND CORPORATE PERSONNEL ARE CURRENTLY INVESTIGATING THE ERROR, BUT HAVE NOT | | YET PERFORMED AN ANALYTICAL EVALUATION OF THE IMPACT ON THE CONTROL ROD | | DROP ACCIDENT ANALYSES. THE RI HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28111 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 12/05/94 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 19:01 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 12/05/94 | +------------------------------------------------+EVENT TIME: 17:10[CST]| |NRC NOTIFIED BY: BRITZ |LAST UPDATE DATE: 12/05/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JORGENSEN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TURBINE BYPASS VALVES DO NOT OPEN AS QUICKLY AS ASSUMED IN PLANT MINIMUM | | CRITICAL POWER RATIO (MCPR) TRANSIENT ANALYSIS. | | | | SEVERAL WEEKS AGO, THE CORPORATE NUCLEAR FUEL SERVICES GROUP NOTIFIED THE | | PLANT OF CONCERNS REGARDING TURBINE BYPASS VALVE OPENING TIMES AS DESCRIBED | | IN THE MCPR TRANSIENT ANALYSIS. THE TURBINE BYPASS VALVES WERE LAST TIMED | | DURING CYCLE 1. THIS TESTING WAS PERFORMED ON UNIT 2 LAST WEEK. AT 1710 | | ON 12/5/94, THE SHIFT ENGINEER WAS INFORMED BY THE NUCLEAR ENGINEERING | | DEPARTMENT THAT THE ANALYSIS OF THE TEST DATA HAD BEEN COMPLETED, AND THAT | | THE TURBINE BYPASS VALVES WERE SLOWER THAN ASSUMED IN THE MCPR TRANSIENT | | ANALYSIS. (THE VALVES OPENED IN 370 mSEC, WHILE THE ANALYSIS ASSUMED | | OPENING IN 300 mSEC.) THE LICENSEE DOES NOT KNOW HOW LONG THESE VALVES | | HAVE BEEN SLOW. | | | | THE LICENSEE IS CURRENTLY TESTING THE TURBINE BYPASS VALVES ON UNIT 1. THE | | NUCLEAR ENGINEERING DEPARTMENT IS PLANNING TO ADJUST THE OPERATING LIMIT | | MCPR, ASSUMING THAT THE VALVES DO NOT OPEN AT ALL. THE NRC RESIDENT | | INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+