U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/30/95 - 01/31/95 ** EVENT NUMBERS ** 28304 28306 28307 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28304 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NINE MILE POINT REGION: 1 |NOTIFICATION DATE: 01/29/95 | |UNIT: [ ] [2] [ ] STATE: NY |NOTIFICATION TIME: 12:28 [ET]| |RX TYPE: [1] GE-2,[2] GE-5 |EVENT DATE: 01/29/95 | +------------------------------------------------+EVENT TIME: 12:28[EST]| |NRC NOTIFIED BY: LYNCH |LAST UPDATE DATE: 01/30/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |FRANK COSTELLO RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |BRIAN SHERON EO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS |CALDWELL FEMA | | |ED JORDAN AEOD | | |KEN BROCKMAN AEOD | | |TIM MARTIN RA | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED WHEN BOTH THE DIV 1 AND DIV 2 EDG's WERE DECLARED | | INOPERABLE. | | | | NINE MILE POINT UNIT 2 COMMENCED AN ORDERLY PLANT SHUTDOWN AS REQUIRED BY | | TECH SPEC 3.8.1.1, ACTION STATEMENT (b), BECAUSE THE DIVISION 1 EDG IS | | INOPERABLE AND WAS NOT ABLE TO BE RESTORED TO OPERABLE WITHIN 72 HOURS OF | | DISCOVERY OF THE INOPERABILITY. THE PROBLEM WITH THE COOPER-BESSEMER | | "KSV-16T" MODEL EDG IS THE MECHANICAL GOVERNOR IS UNDERGOING CORRECTIVE | | MAINTENANCE DUE TO GOVERNOR OVERHEATING AND ENGINE CONTROL PROBLEMS. | | ACTIVITIES CONTINUE TO ATTEMPT TO RESTORE THE EDG TO AN OPERABLE STATUS. | | THE ORIGINAL PROBLEM ON THE DIV 1 EDG WAS DISCOVERED DURING NORMAL | | SURVEILLANCE TESTING. | | | | THIS MORNING, THE LICENSEE STARTED THE DIV 2 EDG (IDENTICAL DESIGN) TO HELP | | ASCERTAIN THE PROBLEM FOR INFORMATIONAL PURPOSES. AT 1241 EST, THE EVENT | | WAS UPGRADED TO AN UNUSUAL EVENT WHEN THE DIV 2 EDG WAS ALSO DECLARED | | INOPERABLE WHEN IT FAILED TO RESPOND TO A NORMAL TRIP SIGNAL AS EXPECTED AT | | THE COMPLETION OF THE INFORMATIONAL RUN. THE DIV 2 DIESEL WAS SUCCESSFULLY | | TRIPPED AFTER OPERATORS EXECUTED "ABNORMAL" SWITCH MANIPULATIONS (AN | | OPERATOR WAS ALSO DISPATCHED TO TRIP THE FUEL RACKS, IT IS UNCLEAR WHICH | | ACTION RESULTED IN THE SUCCESSFUL TRIP OF THE DIV 2 EDG). THE CALLER ALSO | | STATED THAT, DUE TO THE IDENTICAL DESIGNS OF THE EDG's, THE DIV 2 EDG COULD | | POTENTIALLY BE SUSCEPTIBLE TO SIMILAR PROBLEMS THAT THE DIV 1 EDG WAS | | EXPERIENCING, HOWEVER THIS MORNINGS TEST RUN DID NOT INDICATE ANY SUCH | | PROBLEMS. THE DIV 2 EDG IS TECHNICALLY INOPERABLE, BUT IS CONSIDERED | | AVAILABLE, AND EFFORTS ARE UNDERWAY TO RESTORE IT TO AN OPERABLE STATUS. | | | | UPON DECLARING THE UNUSUAL EVENT, TECH SPEC ACTION STATEMENT 3.8.1.1(g) WAS | | ENTERED, WHICH SPECIFIES RETURNING ONE EDG TO OPERABLE STATUS WITHIN TWO | | HOURS OR TO BE IN HOT SHUTDOWN WITHIN THE FOLLOWING 12 HOURS, AND COLD | | SHUTDOWN WITHIN THE FOLLOWING 24 HOURS. | | | | NMP-2 HAS THREE EDG's, HOWEVER THE DIV 3 EDG IS DEDICATED TO HPCS AND IS | | OPERABLE. ALL ECCS SYSTEMS ARE OPERABLE AT THIS TIME. THE TWO 115 KV | | OFF-SITE FEEDS TO THE STATION ARE OPERABLE, AND THE LOAD DISPATCHER HAS | | INDICATED THAT THE GRID IS STABLE, AND THE WEATHER FORECAST DOES NOT | | INDICATE ANY POTENTIAL PROBLEMS WITH GRID STABILITY. | | | | THE UNIT SHOULD BE IN HOT SHUTDOWN IN ABOUT 7.5 HOURS. THE RESIDENT | | INSPECTOR IS IN THE CONTROL ROOM OBSERVING THE SHUTDOWN. THE LICENSEE | | INFORMED THE STATE AND LOCAL AUTHORITIES ABOUT THE UNUSUAL EVENT, AND WILL | | ISSUE A PRESS RELEASE. | | | | ***UPDATE AT 12:18 ON 01/30/95 BY WEAVER TO GOULD*** THE NOUE WAS | | TERMINATED AT 12:11 WHEN THE UNIT WAS PUT IN COLD S/D. BOTH DIV 1 & 2 D/G'S | | ARE AVAILABLE. THE RI WILL BE NOTIFIED AND STATE AND LOCAL AGENCIES WERE | | NOTIFIED. FEMA(CALDWELL), RI(COSTELLO), EO(DENNIG) HAVE BEEN NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28306 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: WESTRONICS |NOTIFICATION DATE: 01/30/95 | | CITY: HUMBLE REGION: 4 |NOTIFICATION TIME: 15:00 [ET]| | COUNTY: STATE: TX |EVENT DATE: 01/30/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[CST]| | DOCKET: |LAST UPDATE DATE: 01/30/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: KELLY(FAX) | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | WESTRONICS DISCOVERED THAT THE POSSIBILITY EXISTS THAT SOME NONCONFORMING | | DIODES MAY HAVE BEEN USED IN SAFETY RELATED SPARE PARTS PROVIDED FOR | | WESTRONICS CHART RECORDER MODELS "S4N", "D4N", "T4N", AND "2100C". | | | | AN INTERNAL PURGE WAS MADE (08/94) IN THEIR COMMERCIAL PRODUCTION WHEN THE | | NONCONFORMING DIODES WERE DISCOVERED. HOWEVER IT WAS DETERMINED THAT SOME | | OF THE NONCONFORMING DIODES ("1N825") WERE SUPPLIED IN SAFETY RELATED SPARE | | PARTS. THESE DIODES ARE FOUND IN SIGNAL INPUT BOARDS FOR THE REFERENCED | | CHART RECORDERS AND CAN BE NOISY AND CAUSE A DRIFT IN CALIBRATION OF THE | | HOST INSTRUMENT. THE AFFECTED CUSTOMERS ARE RIVER BEND STATION, TURKEY | | POINT PLANT, FITZPATRICK PLANT, TAIWAN POWER CO AND VICTOREEN INC. ALL OF | | THE PRECEDING HAVE BEEN NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28307 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 01/30/95 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 19:58 [ET]| |RX TYPE: [1] CE |EVENT DATE: 01/30/95 | +------------------------------------------------+EVENT TIME: 19:00[EST]| |NRC NOTIFIED BY: MCDOUGOLD |LAST UPDATE DATE: 01/30/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JENNY JOHANSEN RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DETERMINED THAT 11 FIRE DAMPERS DID NOT MEET MANUFACTURERS | | SPECIFICATIONS AND WERE DECLARED INOPERABLE. | | | | ON 01/28/95 THE LICENSEE'S FIRE PROTECTION PERSONNEL STARTED AN AUDIT ON | | FIRE RELATED DAMPERS THAT WERE INSTALLED IN 1978. TODAY 16 DAMPERS WERE | | FOUND TO NOT MEET MANUFACTURERS SPECS. HOWEVER, FIVE OF THESE DAMPERS HAVE | | BEEN DETERMINED, BY ENGINEERING JUDGMENT, TO BE OPERABLE. THE OTHER 11 | | DAMPERS, HOWEVER, MAY NOT SHUT DURING A FIRE. AN ENGINEERING EVALUATION | | WILL BE MADE ON THESE 11 DAMPERS. UNTIL THEN, THE LICENSEE HAS DECLARED | | THESE DAMPERS INOPERABLE, PLACING THE UNIT IN A TS LCO REQUIRING THE | | LICENSEE TO MAINTAIN A ROVING FIRE WATCH UNTIL THE PROBLEM IS CORRECTED. | | THE RI WILL BE INFORMED. | +------------------------------------------------------------------------------+