U.S. Nuclear Regulatory Commission Operations Center Event Reports For 08/28/95 - 08/29/95 ** EVENT NUMBERS ** 29245 29246 29247 29248 29249 29250 29251 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29245 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 08/28/95 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 01:48 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 08/27/95 | +------------------------------------------------+EVENT TIME: 23:00[EDT]| |NRC NOTIFIED BY: ED MCAVOY |LAST UPDATE DATE: 08/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD CONTE 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 1 STARTUP | 1 STARTUP | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -RCIC ISOLATION DURING WARM UP- | | | | WHILE PERFORMING S49.1.B (WARM UP, PRESSURIZE & UNISOLATE RCIC), RCIC | | ISOLATED ON A LOW STEAMLINE PRESSURE SIGNAL (64.5 PSIG). REACTOR PRESSURE | | WAS 100 PSIG AT THE TIME OF THE ISOLATION. WITH THE INBOARD ISOLATION | | VALVE OPEN, RCIC ISOLATED WHEN THE WARM UP BYPASS VALVE WAS THROTTLED OPEN. | | BOTH THE INBOARD ISOLATION VALVE AND THE WARM UP BYPASS VALVE ISOLATED ON | | THE LOW PRESSURE SIGNAL AS DESIGNED. | | | | THE LICENSEE BELIEVES THE LOW PRESSURE SIGNAL WAS CAUSED BY WATER DRAINING | | FROM THE SYSTEM WHEN THE WARM UP BYPASS VALVE WAS OPENED. THE ISOLATION | | HAD NO DISCERNIBLE AFFECT ON THE PLANT. THE ISOLATION WAS RESET AT 2305 | | AND PROCEDURE S49.1.B WAS COMPLETED WITHOUT FURTHER INCIDENT. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29246 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LIMERICK REGION: 1 |NOTIFICATION DATE: 08/28/95 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 07:39 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 08/28/95 | +------------------------------------------------+EVENT TIME: 06:52[EDT]| |NRC NOTIFIED BY: MUDRICK |LAST UPDATE DATE: 08/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |RICHARD CONTE RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |GUS LAINAS EO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION |AUSTIN FEMA | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | M/R Y 9 STARTUP | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -UNUSUAL EVENT DECLARED BASED ON UNIDENTIFIED LEAKAGE TO THE DRYWELL- | | | | DURING STARTUP, WITH REACTOR POWER AT ABOUT 9%, THE LICENSEE SCRAMMED THE | | PLANT DUE TO UNIDENTIFIED LEAKAGE TO THE DRYWELL OF ABOUT 3.2 GPM. THIS | | EXCEEDS THE LEAKAGE ALLOWED BY TECH SPEC 3.4.3.2 OF A 2 GPM INCREASE IN | | LEAKAGE IN A 24 HOUR PERIOD. PLANT PRESSURE WAS ABOUT 800 PSIG AT THE TIME | | THE EVENT OCCURRED. ALL RODS FULLY INSERTED AND THE PLANT IS STABLE IN | | OPERATIONAL CONDITION 3. PLANT PRESSURE HAS BEEN REDUCED TO AROUND 500 | | PSIG AND LEAKAGE HAS BEEN REDUCED TO 3.0 GPM. ALL SAFETY RELATED EQUIPMENT | | IS OPERABLE. | | | | THE LICENSEE IS MAKING PREPARATIONS FOR A DRYWELL ENTRY TO DETERMINE THE | | EXACT LOCATION OF THE LEAK. FURTHER ACTIONS WILL BE DETERMINED BY THE LEAK | | LOCATION. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. APPROPRIATE STATE AND | | LOCAL OFFICIALS WERE NOTIFIED. A PRESS RELEASE IS PLANNED. | | | | * * * UPDATE AT 0833 ON 8/29/95 BY TUCKER TAKEN BY WEAVER * * * | | THE UNUSUAL EVENT WAS TERMINATED AT 0829 BASED ON PLANT STABILITY AND | | LEAKAGE BEING REDUCED TO LESS THAN 2 GPM. HOO NOTIFIED RDO (CONTE); EO | | (LAINAS); FEMA (WITSBURGER). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29247 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: ROCHESTER GAS AND ELECTRIC CORP. |NOTIFICATION DATE: 08/28/95 | | CITY: ROCHESTER REGION: 1 |NOTIFICATION TIME: 14:55 [ET]| | COUNTY: STATE: NY |EVENT DATE: 08/03/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[EDT]| | DOCKET: |LAST UPDATE DATE: 08/28/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: JOHN T. StMARTIN | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ROCHESTER GAS AND ELECTRIC CORPORATION, ROCHESTER, NY. | | | | REPLACEMENT EMERGENCY DIESEL GENERATOR (EDG) FUEL OIL BOOSTER PUMPS | | MANUFACTURED BY TUTHILL CORPORATION FAILED TO MEET THE MINIMUM PRESSURE | | REQUIREMENT. THE TUTHILL INTERNAL GEAR POSITIVE DISPLACEMENT PUMP MODEL | | 2CF-CC WAS REWORKED BY THE LICENSEE TO INCREASE OPERATING PRESSURE BY | | CHANGING SHIMS TO ADJUST THE END PLAY CLEARANCE TO A TIGHTER TOLERANCE. THE | | LICENSEE IS EVALUATING FURTHER CORRECTIVE ACTIONS. | | | | INADEQUATE FUEL SYSTEM PRESSURE COULD RESULT IN FAILURE OF THE EDG TO | | PROVIDE ADEQUATE POWER TO THE EMERGENCY LOADS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29248 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: INDUSTRIAL NUCLEAR |NOTIFICATION DATE: 08/28/95 | | CITY: SAN LEANDRO REGION: 4 |NOTIFICATION TIME: 16:41 [ET]| | COUNTY: STATE: CA |EVENT DATE: 08/27/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[PDT]| | DOCKET: |LAST UPDATE DATE: 08/28/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |ELMO COLLINS RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: PETE HANGES | | |HQ OPS OFFICER: RUDY KARSCH | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DIAMOND H TESTING OF POCATELLO, IDAHO, REPORTED TWO DEFECTS WITHIN TWO DAYS | | IN SOURCE CONNECTORS PROVIDED BY INDUSTRIAL NUCLEAR CORP OF SAN LEANDRO, | | CA. THE PROBLEM IS A DEFECTIVE SOURCE CONNECTOR ON A RADIOGRAPHY CAMERA. | | | | BALL CONNECTORS BROKE OFF DRIVE CABLES ON 8/25 AND 8/27, 1995. IN BOTH | | INSTANCES THE SOURCES WERE RECOVERED. THE BREAK SEEMS TO BE CAUSED BY A | | MANUFACTURING DEFECT IN THE CONNECTOR. DIAMOND H WILL SHIP THE BROKEN | | PARTS TO INDUSTRIAL NUCLEAR FOR TESTING AND EVALUATION. THIS EVENT WAS | | ALSO REPORTED TO REGION 4. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29249 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 08/28/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 17:37 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 08/28/95 | +------------------------------------------------+EVENT TIME: 15:50[CDT]| |NRC NOTIFIED BY: DAN ACKERMAN |LAST UPDATE DATE: 08/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PATRICK HILAND 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | INCORRECT ACCEPTANCE CRITERIA FOR A SURVEILLANCE TEST COULD RENDER BOTH | | TRAINS OF THE EMERGENCY CORE COOLING SYSTEM (ECCS) INOPERABLE. | | | | THE SURVEILLANCE TEST WHICH VERIFIES THE MECHANICAL POSITION STOP FOR ECCS | | INJECTION VALVES, WHICH ARE LOCKED IN A THROTTLED POSITION, HAD THE WRONG | | ACCEPTANCE CRITERIA. THE DISTANCE TO OPEN THE VALVES WAS INCORRECT. THIS | | COULD CAUSE FAILURE OF THE ECCS TO MITIGATE THE CONSEQUENCES OF AN | | ACCIDENT. HOWEVER, THE LICENSEE DETERMINED THAT THE PORTION OF THE | | SURVEILLANCE TEST WITH THE INCORRECT ACCEPTANCE CRITERIA HAD NEVER BEEN | | USED. THE TEST WILL BE REVISED TO INCORPORATE THE CORRECT CRITERIA. THE | | LICENSEE ALSO DETERMINED THAT THIS ISSUE DOES NOT AFFECT UNIT 2. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29250 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FT CALHOUN REGION: 4 |NOTIFICATION DATE: 08/28/95 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 17:44 [ET]| |RX TYPE: [1] CE |EVENT DATE: 08/24/95 | +------------------------------------------------+EVENT TIME: 11:15[CDT]| |NRC NOTIFIED BY: JIM O'CONNOR |LAST UPDATE DATE: 08/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ELMO COLLINS 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 | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MISPOSITIONING OF THE EMERGENCY DIESEL GENERATOR (EDG) GOVERNOR COULD CAUSE | | OVERLOAD OF THE EDG. | | | | FOLLOWING THE REACTOR TRIP OF 8/24/95 (SEE EVENT 29234) EDG "DG-1" | | ACCELERATED TO 900 RPM (FULL SPEED) RATHER THAN 500 RPM (IDLE SPEED). THE | | SYSTEM IS DESIGNED TO HAVE THE EDG START AND PAUSE BRIEFLY AT IDLE SPEED TO | | ALLOW NORMAL LOADS TO BE SHED FROM THE EMERGENCY BUS. IMMEDIATE | | ACCELERATION TO 900 RPM MIGHT NOT ALLOW SUFFICIENT TIME FOR LOAD SHEDDING | | TO OCCUR BEFORE THE EDG'S OUTPUT BREAKER CLOSES. IF THE EDG CONNECTS TO | | THE BUS AND EMERGENCY AND NON-EMERGENCY LOADS ARE STILL CONNECTED, PROPER | | ACCELERATION OF ESF PUMPS IS DOUBTFUL, AND THE EDG ENGINE'S LOAD RATING | | COULD BE EXCEEDED. | | | | ON 8/28/95 AT 1552 CDT THE LICENSEE DETERMINED THAT THE CONSEQUENCES OF | | THIS OCCURRENCE ARE OUTSIDE THE BOUNDS OF PREVIOUSLY ANALYZED | | ENGINE/GENERATOR CAPABILITY. | | | | GOVERNOR POSITION WAS RESET AND THE EDG WAS TESTED AND DETERMINED TO BE | | OPERABLE PRIOR TO UNIT RESTART. THE UNIT IS PRESENTLY AT 87% POWER AND | | INCREASING TO 100%. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29251 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 08/28/95 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 23:44 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 08/28/95 | +------------------------------------------------+EVENT TIME: 22:56[CDT]| |NRC NOTIFIED BY: RONNIE MUSGROVE |LAST UPDATE DATE: 08/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |EDWARD MCALPINE RDO | |AENS 50.72(b)(1)(v) ENS INOPERABLE | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE'S EMERGENCY NOTIFICATION RADIO COMMUNICATIONS LINK WAS OUT OF | | SERVICE FROM 2256 TO 2306 EDT. A COMPONENT AT THE TRANSMITTER OVERHEATED | | AND FAILED. THE LICENSEE IS PERFORMING A ROOT CAUSE INVESTIGATION. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+