U.S. Nuclear Regulatory Commission Operations Center Event Reports For 05/10/95 - 05/11/95 ** EVENT NUMBERS ** 28739 28781 28782 28783 28784 28785 28786 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28739 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DUANE ARNOLD REGION: 3 |NOTIFICATION DATE: 04/29/95 | |UNIT: [1] [ ] [ ] STATE: IA |NOTIFICATION TIME: 17:23 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 04/29/95 | +------------------------------------------------+EVENT TIME: 14:06[CDT]| |NRC NOTIFIED BY: BARTON |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROGER LANKSBURY 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AN EXCESS FLOW CHECK VALVE CLOSED DURING THE VENTING OF AN INSTRUMENT LINE. | | | | INSTRUMENT TECHNICIANS PERFORMING A CORE FLOW CALIBRATION VENTED A JET PUMP | | FLOW TRANSMITTER TOO QUICKLY CAUSING AN EXCESS FLOW CHECK VALVE TO CLOSE. | | THE LICENSEE CONSIDERS THE AUTOMATIC CLOSURE OF AN EXCESS FLOW CHECK VALVE | | TO BE AN ESF ACTUATION. AN ALARM WAS RECEIVED IN THE CONTROL ROOM, AND THE | | LICENSEE VERIFIED THAT THERE WAS NO ACTUAL LEAK. THE LICENSEE SUBSEQUENTLY | | RESET THE EXCESS FLOW CHECK VALVE, AND RESTORED THE SYSTEM TO NORMAL | | CONFIGURATION. | | | | THE RESIDENT INSPECTOR WAS NOTIFIED BY THE LICENSEE. | | | | ***RETRACTION 5/10/95 @ 09:59 FROM KARRICK TAKEN BY SEBROSKY *** | | THE LICENSEE FEELS THAT THE EXCESS FLOW CHECK VALVE THAT CLOSED WAS A | | SINGLE COMPONENT ACTUATION OF THE PRIMARY CONTAINMENT ISOLATION ESF. AS A | | SINGLE COMPONENT THE ONE INCH EXCESS FLOW CHECK VALVE IS NOT CAPABLE OF | | MITIGATING A SIGNIFICANT EVENT AND THEREFORE IT DOES NOT MEET THE INTENT OF | | THE STATEMENT OF CONSIDERATIONS ASSOCIATED WITH EVENT SIGNIFICANCE FOR | | REPORTING ESF ACTUATIONS. NO LER WILL BE WRITTEN ON THIS EVENT. | | | | THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR. HOO NOTIFIED | | R3DO(LYNCH). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 28781 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: RC ASSOCIATES, INC. |NOTIFICATION DATE: 05/10/95 | | CITY: SAGINAW REGION: 3 |NOTIFICATION TIME: 14:28 [ET]| | COUNTY: SAGINAW STATE: MI |EVENT DATE: 05/09/95 | |LICENSE#: 21-25870-01 AGREEMENT: N |EVENT TIME: 12:00[EDT]| | DOCKET: |LAST UPDATE DATE: 05/10/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |JIM LYNCH RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: J NIEMI | | |HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TROXLER MOISTURE DENSITY GAUGE STOLEN FROM BACK OF UNATTENDED PICKUP TRUCK | | ON 05/09/95 AT 1200 EDT. | | | | Mr. J. NIEMI OF RC ASSOCIATES, INC., 5859 SHERMAN RD, SAGINAW, MI. (ZIP | | CODE 48604) REPORTED THAT A MOISTURE DENSITY GAUGE WAS STOLEN FROM THE BACK | | OF ONE OF THEIR PICKUP TRUCKS (OPEN BED PICKUP TRUCK) WHILE IT WAS PARKED | | IN THEIR PARKING LOT. DURING THE 15 MINUTE TIME PERIOD THAT THE TRUCK WAS | | LEFT UNATTENDED THE TROXLER MOISTURE DENSITY GAUGE WAS STOLEN FROM THE BACK | | OF THE PICKUP TRUCK. TROXLER MOISTURE DENSITY GAUGE HAS TWO SOURCES IN IT. | | THE SOURCES ARE CS-137 (8 MILLICURIES) & AM-241 (40 MILLICURIES). FORMER | | NAME OF RC ASSOCIATES,INC. WAS GEO-TECH,LTD (CALLER BELIEVED THE TROXLER | | MOISTURE DENSITY GAUGE LICENSE NUMBER IS REGISTERED UNDER RC ASSOCIATES, | | INC.). LICENSEE NOTIFIED THEIR RADIATION SAFETY OFFICER (TOM DOREY) AN | | INFORMED HIM OF THE GAUGE BEING STOLEN. LICENSEE NOTIFIED SAGINAW SHERIFF | | DEPARTMENT OF THIS INCIDENT TODAY (5/10/95 AT 0900EDT). SAGINAW SHERIFF | | DEPARTMENT SAID THAT THEY MAY MAKE A NEWS RELEASE ABOUT THE TROXLER | | MOISTURE DENSITY GAUGE BEING STOLEN. LICENSEE ALSO NOTIFIED MICHIGAN | | DEPARTMENT OF PUBLIC HEALTH LOCATED IN LANSING, MI. ON 05/10/95 AT 1300EDT | | THAT THE ABOVE MENTIONED DEVICE WAS STOLEN. | | | | LICENSEE NOTIFIED REGION 3 DON SRENIAWSKI OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28782 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 05/10/95 | |UNIT: [ ] [2] [ ] STATE: CT |NOTIFICATION TIME: 17:37 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 05/10/95 | +------------------------------------------------+EVENT TIME: 17:20[EDT]| |NRC NOTIFIED BY: NELSON |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KELLY 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 +------------------------------------------------------------------------------+ | LICENSEE DISCOVERED POTENTIAL DEFICIENCIES WITH MODIFICATIONS MADE TO PLANT | | DURING REFUELING OUTAGE. | | | | DURING TESTING, THE LICENSEE DISCOVERED THAT MODIFICATIONS MADE TO BOTH | | TRAINS OF THE ENGINEERED SAFETY FEATURES ACTUATION SYSTEM (ESAS) DURING | | THIS OUTAGE MAY NOT WORK AS INTENDED. SPECIFICALLY, AN ESAS SIGNAL MAY NOT | | START THE EMERGENCY DIESEL GENERATORS. THEREFORE, THE LICENSEE HAS | | DECLARED BOTH TRAINS OF THE ESAS INOPERABLE, AND HAS ENTERED VARIOUS | | TECHNICAL SPECIFICATION ACTION STATEMENTS AS A RESULT. PARTICULARLY, ALL | | CORE ALTERATIONS HAVE BEEN HALTED, AND THE LICENSEE IS REQUIRED TO RESTORE | | CONTAINMENT INTEGRITY. THE LICENSEE IS INVESTIGATING THE PROBLEM AND | | POSSIBLE CORRECTIVE ACTIONS. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28783 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 05/10/95 | |UNIT: [2] [ ] [ ] STATE: NY |NOTIFICATION TIME: 17:49 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 05/10/95 | +------------------------------------------------+EVENT TIME: 16:00[EDT]| |NRC NOTIFIED BY: SANTINI |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |KELLY RDO | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | NONCONSERVATIVE METHOD IN PROCEDURE TO SET CONSTANTS FOR OVERPOWER | | DIFFERENTIAL TEMPERATURE CALCULATORS. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE SUBMITTED BY THE LICENSEE IN | | ACCORDANCE WITH 10 CFR 50.36(c)(1)(ii)(A): | | | | "DURING A REVIEW OF THE TEST PROCEDURE TO SET THE CONSTANTS FOR THE | | TECHNICAL SPECIFICATION 2.3.1.B(5), OVERPOWER DELTA T, THE PRACTICE OF | | USING A 200mV STEP FUNCTION FOR INCREASED ACCURACY TO SET THE K5 TERM WAS | | QUESTIONED. UPON FURTHER ANALYSIS, IT WAS DETERMINED THAT THE USE OF THIS | | LARGE STEP FUNCTION RESULTED IN A NON-CONSERVATIVE VALUE FOR K5 WHICH LEFT | | A SETPOINT LOWER THAN THAT ALLOWED BY THE TECHNICAL SPECIFICATION. | | | | A REVIEW OF THE BASIS FOR TECHNICAL SPECIFICATION SAFETY LIMITS RESULTED IN | | THE DETERMINATION THAT SAFETY LIMITS WERE NOT EXCEEDED, NOR COULD THEY | | POTENTIALLY BE EXCEEDED BY THIS SETTING. THE SAFETY LIMITS ARE DETERMINED | | BY STEADY STATE ANALYSIS, AND THE K5 SETTING AFFECTS ONLY A DYNAMIC TERM IN | | THE OVERPOWER DELTA T SETPOINT EQUATION. | | | | SAFETY ANALYSES WERE ALSO REVIEWED, AND IT WAS DETERMINED THAT ALL DESIGN | | BASES CONTINUED TO BE SATISFIED EVEN WITH THIS IMPROPER SETTING FOR K5. | | | | CORRECTIVE ACTION INCLUDED REVISING THE PROCEDURE TO UTILIZE A SMALLER STEP | | FUNCTION WHEN SETTING K5, AND RESETTING THE FOUR CHANNEL SETPOINTS TO | | VALUES THAT SATISFIED THE TECHNICAL SPECIFICATION REQUIREMENTS." | | | | THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28784 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: RIVER BEND REGION: 4 |NOTIFICATION DATE: 05/10/95 | |UNIT: [1] [ ] [ ] STATE: LA |NOTIFICATION TIME: 18:20 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 05/10/95 | +------------------------------------------------+EVENT TIME: 15:52[CDT]| |NRC NOTIFIED BY: BUSH |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BARNES RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | LOUISIANA STATE POLICE NOTIFIED REGARDING EMERGENCY LANDING OF AIRCRAFT ON | | LICENSEE PROPERTY. | | | | AT 1552, THE CONTROL ROOM WAS NOTIFIED REGARDING THE EMERGENCY LANDING OF A | | SINGLE-ENGINE PRIVATE AIRCRAFT ON A PLANT ACCESS ROAD, BETWEEN THE PLANT | | AND THE RIVER INTAKE STRUCTURE. THE LANDING TOOK PLACE APPROXIMATELY 1 | | MILE FROM THE SITE BOUNDARY. NO DAMAGE TO THE AIRCRAFT OR INJURIES TO THE | | OCCUPANTS OCCURRED. | | | | THE LICENSEE CONTACTED THE LA STATE POLICE REGARDING THIS EVENT. THE NRC | | RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28785 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PERRY REGION: 3 |NOTIFICATION DATE: 05/10/95 | |UNIT: [1] [ ] [ ] STATE: OH |NOTIFICATION TIME: 21:00 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 05/10/95 | +------------------------------------------------+EVENT TIME: 20:12[EDT]| |NRC NOTIFIED BY: NEMCEK |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LYNCH RDO | |AINC 50.72(b)(2)(iii)(C) POT UNCNTRL RAD REL | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | CONTAINMENT AIRLOCK COULD PERMIT EXCESSIVE LEAKAGE DURING SEISMIC EVENT | | | | THE CONTROL ROOM WAS NOTIFIED BY THE SITE ENGINEERING DEPARTMENT THAT A | | LOCAL LEAK RATE TEST (LLRT) CONNECTION INSTALLED ON THE UPPER CONTAINMENT | | AIRLOCK COULD BE DAMAGED DURING A SEISMIC EVENT. THE CONNECTION IS A 1/2" | | FLEX HOSE, WHICH IS INSTALLED ON THE OUTSIDE OF THE UPPER AIRLOCK BARREL, | | AND IS USED TO PRESSURIZE THE AIRLOCK FOR LEAK TESTING. DURING A SEISMIC | | EVENT, THE HOSE WOULD BE FREE TO MOVE, AND COULD BE DAMAGED. IF THIS WERE | | TO OCCUR COINCIDENT WITH AN INNER AIRLOCK DOOR FAILURE, A LEAKAGE PATH | | OUTSIDE OF THE CONTAINMENT WOULD BE CREATED IN EXCESS OF ALLOWABLE LIMITS. | | | | BECAUSE DAMAGE TO THIS TEST CONNECTION COULD PERMIT LEAKAGE TO BYPASS THE | | OUTER AIRLOCK DOOR, THE LICENSEE HAS LOCKED THE INNER DOOR CLOSED IN | | ACCORDANCE WITH PLANT TECHNICAL SPECIFICATIONS. THE TEST CONNECTION WAS | | INSTALLED IN 1985, AND THE MODIFICATION PACKAGE DID NOT RECEIVE PROPER | | REVIEW. THE CONTAINMENT UPPER AIRLOCK INNER DOOR HAS FAILED LEAKAGE TESTS | | ON NUMEROUS OCCASIONS DURING THE PAST TEN YEARS. THE INNER DOOR IS | | CURRENTLY OPERABLE. THE NRC RESIDENT INSPECTOR WILL BE INFORMED BY THE | | LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28786 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRUNSWICK REGION: 2 |NOTIFICATION DATE: 05/10/95 | |UNIT: [ ] [2] [ ] STATE: NC |NOTIFICATION TIME: 23:17 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 05/10/95 | +------------------------------------------------+EVENT TIME: 21:25[EDT]| |NRC NOTIFIED BY: BREWER |LAST UPDATE DATE: 05/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |POTTER RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | HIGH PRESSURE COOLANT INJECTION SYSTEM DID NOT START DURING TEST. | | | | DURING PERFORMANCE OF THE QUARTERLY HPCI SURVEILLANCE TEST, THE HPCI | | TURBINE FAILED TO START. THE LICENSEE BELIEVES THAT A MALFUNCTION IN THE | | HPCI TURBINE ELECTRONIC GOVERNOR CONTROL SYSTEM OCCURRED, AND THAT THE | | GOVERNOR DID NOT SIGNAL THE TURBINE CONTROL VALVE TO OPEN. | | | | THE LICENSEE IS TROUBLESHOOTING THE PROBLEM WITH THE HPCI TURBINE GOVERNOR. | | PRELIMINARY INDICATIONS ARE THAT A RESISTOR IN THE ELECTRONIC GOVERNOR | | MODULE MAY HAVE FAILED. THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED. | | | +------------------------------------------------------------------------------+