U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/26/96 - 01/29/96 ** EVENT NUMBERS ** 29893 29894 29895 29896 29897 29898 29899 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29893 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WOLF CREEK REGION: 4 |NOTIFICATION DATE: 01/26/96 | |UNIT: [1] [ ] [ ] STATE: KS |NOTIFICATION TIME: 10:52 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 01/26/96 | +------------------------------------------------+EVENT TIME: 09:15[CST]| |NRC NOTIFIED BY: JENNIFER YUNK |LAST UPDATE DATE: 01/26/96 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES CAIN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - LOOSE RETAINING NUT FOUND ON TURBINE DRIVEN AUXILIARY FEEDWATER PUMP - | | | | ON 01/24/96, WHILE PERFORMING MAINTENANCE ACTIVITIES, LICENSEE DISCOVERED | | THAT THE RETAINING NUT ON THE TURBINE DRIVEN AUXILIARY FEEDWATER PUMP | | INBOARD PACKING SHAFT SLEEVE WAS LOOSE. LICENSEE DECLARED THE PUMP | | INOPERABLE. THE NUT HAD APPARENTLY BEEN LOOSE FOR SOME TIME. | | | | LICENSEE HAS REPAIRED THE PUMP AND IT IS FUNCTIONAL. | | | | LICENSEE IS EVALUATING THE IMPACT OF THE LOOSE NUT ON PUMP PERFORMANCE OVER | | AN EXTENDED RUN TIME. THIS CONDITION COULD HAVE POTENTIALLY AFFECTED PUMP | | PERFORMANCE AND ULTIMATELY REDUCED RESIDUAL HEAT REMOVAL CAPABILITY. | | | | LICENSEE IS INSPECTING OTHER PUMPS FOR SIMILAR CONDITIONS. | | | | AT 0915 (CST) ON 01/26/96, LICENSEE DETERMINED THIS EVENT TO BE REPORTABLE | | TO THE NRC. | | | | LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29894 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HOPE CREEK REGION: 1 |NOTIFICATION DATE: 01/26/96 | |UNIT: [1] [ ] [ ] STATE: NJ |NOTIFICATION TIME: 13:21 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 01/25/96 | +------------------------------------------------+EVENT TIME: 21:40[EST]| |NRC NOTIFIED BY: PIKE |LAST UPDATE DATE: 01/26/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG 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 N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EMERGENCY DIESEL GENERATORS DECLARED INOPERABLE DUE TO A POSSIBLE PROBLEM | | WITH THE EXHAUST HEADER INSULATION. | | | | ON 1/24/96, A SECTION OF INSULATION FELL OFF THE EXHAUST HEADER OF THE "A" | | EDG. AT THIS TIME, THE "A" AND "C" EDGs WERE INOPERABLE DUE TO SCHEDULED | | MAINTENANCE ACTIVITIES. ENGINEERING HAS DETERMINED THAT THE INSULATION WAS | | NOT INSTALLED IN ACCORDANCE WITH DESIGN SPECIFICATIONS. AT THIS TIME, THERE | | IS A CONCERN THAT THE INSULATION FOR THE OTHER THREE EDGs WERE ALSO | | INSTALLED INCORRECTLY. | | | | A TEMPERATURE SENSOR LOCATED SIX FEET ABOVE THE EXPOSED PORTION OF THE "A" | | EDG EXHAUST HEADER ACTUATES THE CARBON DIOXIDE FIRE SUPPRESSION SYSTEM. THE | | OTHER THREE EDGs HAVE A SIMILAR CONFIGURATION AND WITH THE INSULATION | | REMOVED, THE HEAT FROM THE EXPOSED PORTION OF THE EXHAUST HEADER, DURING | | EDG OPERATION, HAS THE POTENTIAL TO CAUSE THE TEMPERATURE SENSOR TO ACTUATE | | THE CARBON DIOXIDE FIRE SUPPRESSION SYSTEM. WHEN THE FIRE SUPPRESSION | | SYSTEM ACTUATES, THE VENTILATION DAMPERS SUPPLYING THE EDG ROOMS ISOLATE, | | PREVENTING AIR FLOW AND COOLING TO THE EDGs. THIS WOULD LEAD TO | | OVERHEATING, AND SUBSEQUENT FAILURE, OF THE EDGs. THEREFORE, THE "B" AND | | "D" EDGs WERE DECLARED INOPERABLE AT 21:40 ON 1/25/96 AND THE PLANT ENTERED | | AN LCO ACTION STATEMENT.. | | | | IF THE INSULATION FOR THE OTHER THREE EDGs ARE INSTALLED INCORRECTLY, A | | SEISMIC EVENT MAY RESULT IN A SIMILAR SECTION OF INSULATION FALLING OFF, | | AND SUBSEQUENTLY RENDERING THEM INOPERABLE IF NEEDED FOR A LOP/LOCA | | SITUATION. AT 10:00 ON 1/26/96, THE LICENSEE DETERMINED THAT ALTHOUGH A | | 10CFR50.72 NOTIFICATION WAS REQUIRED, IT HAD NOT YET BEEN MADE. THE RI WAS | | NOTIFIED ALONG WITH LOWER ALLOWAYS CREEK TOWNSHIP. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29895 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 01/26/96 | |UNIT: [1] [ ] [ ] STATE: CT |NOTIFICATION TIME: 16:27 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 01/26/96 | +------------------------------------------------+EVENT TIME: 16:10[EST]| |NRC NOTIFIED BY: DONOVAN |LAST UPDATE DATE: 01/26/96 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG 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 N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DISCOVERED THAT THERE WAS A DISCREPANCY BETWEEN THE EXISTING | | ANTICIPATED TRANSIENT WITHOUT SCRAM (ATWS) LOW LOW LEVEL SETPOINT AND WHAT | | IS REQUIRED BY THE DESIGN BASIS. | | | | DURING THEIR PREVIOUS OUTAGE THEY HAD CHANGED THE EMERGENCY CORE COOLING | | SYSTEMS (ECCS) AND CONTAINMENT ISOLATION LOW LOW SETPOINTS BASED ON A | | CHANGE IN FUEL LENGTH RESULTING FROM A DIFFERENT TYPE OF FUEL BEING | | INSTALLED. WHEN THEY CHANGED THESE TWO SETPOINTS, THEY DID NOT UPDATE THE | | ATWS LOW LOW LEVEL TRIP SETPOINT. THIS SETPOINT SHOULD HAVE ALSO BEEN | | CHANGED AND WILL BE CHANGED PRIOR TO STARTUP. THEY ARE STILL TRYING TO | | DETERMINE WHY THE ATWS LOW LOW LEVEL SETPOINT WAS NOT CHANGED. THE RI WAS | | INFORMED ALONG WITH THE STATE DEPARTMENT OF ENVIRONMENTAL PROTECTION AND | | OTHER LOCAL AGENCIES. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29896 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HOPE CREEK REGION: 1 |NOTIFICATION DATE: 01/27/96 | |UNIT: [1] [ ] [ ] STATE: NJ |NOTIFICATION TIME: 10:50 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 01/27/96 | +------------------------------------------------+EVENT TIME: 10:30[EST]| |NRC NOTIFIED BY: J PIKE |LAST UPDATE DATE: 01/27/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICK KEIMIG RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GREATER THAN 10% OF THEIR OFFSITE EMERGENCY SIRENS INOPERABLE FOR GREATER | | THAN ONE HOUR. | | | | LICENSEE WAS NOTIFIED BY ATLANTIC ELECTRIC THAT 10 OF THEIR OFFSITE | | EMERGENCY SIRENS WERE INOPERABLE FROM 0900ET UNTIL 1005ET DUE TO LOCAL AREA | | ELECTRICAL OUTAGE. POWER WAS RESTORED TO THE SIRENS AT 1005ET. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | (SEE EVENT # 29898 FOR SAME EVENT) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29897 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SEABROOK REGION: 1 |NOTIFICATION DATE: 01/27/96 | |UNIT: [1] [ ] [ ] STATE: NH |NOTIFICATION TIME: 11:05 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 01/27/96 | +------------------------------------------------+EVENT TIME: 09:45[EST]| |NRC NOTIFIED BY: MORRISSEY |LAST UPDATE DATE: 01/28/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICK KEIMIG RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | A/R Y 100 POWER OPERATION | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | REACTOR TRIP ON HIGH PRESSURIZER PRESSURE. ALL RODS FULLY INSERTED. | | | | LICENSEE RECEIVED AN AUTOMATIC REACTOR TRIP ON HIGH PRESSURIZER PRESSURE | | (SETPOINT 2385psig). BOTH PRESSURIZER PORVs OPENED AND THEN CLOSED. NO | | PRESSURIZER CODE SAFETY VALVES OPENED. ALL RODS FULLY INSERTED INTO THE | | CORE. LICENSEE RECEIVED AN EXPECTED FEEDWATER ISOLATION SIGNAL ON LOW Tave | | COINCIDENT WITH A REACTOR TRIP. THEIR MOTOR DRIVEN AND TURBINE DRIVEN | | AUXILIARY FEEDWATER PUMPS AUTOMATICALLY STARTED ON LOW LOW STEAM GENERATOR | | WATER LEVEL. THE AUXILIARY FEEDWATER PUMPS HAVE BEEN SECURED AND STEAM | | GENERATOR WATER LEVEL IS BEING MAINTAINED VIA THEIR STARTUP FEEDWATER PUMP. | | STEAM DUMP BYPASS CONTROL SYSTEM OPERATED PROPERLY AND IS MAINTAINING THE | | REACTOR COOLANT SYSTEM AT A Tave NO LOAD CONDITION OF 557ø F. | | ALL THREE LOW PRESSURE TURBINE INLET COMBINED INTERMEDIATE VALVES (2 VALVES | | PER TURBINE) CLOSED BEFORE THE REACTOR TRIPPED ON HIGH PRESSURIZER | | PRESSURE. EHC SYSTEM PUMPS ARE OPERATING PROPERLY. LICENSEE THINKS THAT | | MAYBE THE EHC DUMP VALVE OPENED & CLOSE WHICH CAUSED THE LOW PRESSURE MAIN | | TURBINE INLET COMBINED INTERMEDIATE VALVES TO CLOSE. | | NO STEAM GENERATOR ATMOSPHERIC OR CODE SAFETY VALVES OPENED. ALL EDGs AND | | THE EMERGENCY CORE COOLING SYSTEM ARE FULLY OPERABLE IF NEEDED. LICENSEE IS | | INVESTIGATING WHAT CAUSED THE REACTOR TRIP. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | ****UPDATE @0411ET 01/28/96 BY DEECK TAKEN BY MACKINNON**** | | | | IT APPEARS THAT A FAILED CARD IN THE EHC CABINET CAUSED THE LOW PRESSURE | | TURBINE COMBINED INTERMEDIATE VALVES TO CLOSE. RI NOTIFIED. R1DO (RICK | | KEIMIG) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29898 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SALEM REGION: 1 |NOTIFICATION DATE: 01/27/96 | |UNIT: [1] [2] [ ] STATE: NJ |NOTIFICATION TIME: 11:30 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 01/27/96 | +------------------------------------------------+EVENT TIME: 10:30[EST]| |NRC NOTIFIED BY: KONOVALCHICK |LAST UPDATE DATE: 01/27/96 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICK KEIMIG RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GREATER THAN 10% OF THE OFFSITE EMERGENCY SIRENS (10 OUT OF 71) WERE | | INOPERABLE FOR GREATER THAN ONE HOUR. | | | | OFFSITE EMERGENCY SIRENS WERE INOPERABLE FROM 0900ET UNTIL 1005ET. THE LOSS | | OF THE SIRENS WAS DUE TO A POWER FAILURE IN SALEM COUNTY. THE SUSPECTED | | CAUSE OF THE LOSS OF POWER TO THE OFFSITE EMERGENCY SIRENS IS WEATHER | | RELATED. ALL SIRENS HAVE BEEN RESTORED EXCEPT FOR 3, 2 IN DELAWARE AND 1 IN | | NEW JERSEY, WHICH WERE PREVIOUSLY INOPERABLE DUE TO BURNT OUT MOTORS. NEW | | MOTORS ARE ON ORDER. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | (SEE EVENT #29896 FOR SAME EVENT) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29899 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: YANKEE ATOMIC ENVIRONMENTAL LAB |NOTIFICATION DATE: 01/27/96 | | CITY: WESTBORO REGION: 1 |NOTIFICATION TIME: 12:20 [ET]| | COUNTY: STATE: MA |EVENT DATE: 01/26/96 | |LICENSE#: 2014597-01 AGREEMENT: N |EVENT TIME: 15:30[EST]| | DOCKET: 03011075 |LAST UPDATE DATE: 01/27/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |RICHARD KEIMIG RDO | | |MIKE BELL EO | +------------------------------------------------+ | |NRC NOTIFIED BY: MARCELLO/PANZARINO | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | YANKEE ATOMIC ELECTRIC ENVIRONMENTAL LAB REPORTED THAT AN INDIVIDUAL BECAME | | CONTAMINATED ON THE HAND WHILE WORKING AT THE FACILITY. | | | | THE LICENSEE REPORTED THAT AN INDIVIDUAL WAS ATTEMPTING TO REMOVE A SOURCE | | FROM A SEALED INSTRUMENT THAT WAS TO BE DISCARDED. WHEN THE SEAL WAS | | BREACHED, THE INDIVIDUAL'S HAND BECAME CONTAMINATED(APPROX. 1500 DPM), BUT | | ALL OTHER CONTAMINATION WAS CONTAINED TO THE DEVICE. THE INDIVIDUAL'S HAND | | HAS SINCE BEEN DECONTAMINATED. THE DEVICE AND THE SOURCE HAVE BEEN SECURED. | | THEY ARE PERFORMING SOME FOLLOWUP BIOASSAYS ON THE TWO INDIVIDUALS THAT | | WERE INVOLVED. THE SEALED SOURCE WAS 8 MILLICURIES OF NICKEL-63. | +------------------------------------------------------------------------------+