U.S. Nuclear Regulatory Commission Operations Center Event Reports For 12/12/96 - 12/13/96 ** EVENT NUMBERS ** 31440 31441 31442 31443 31444 31445 31446 +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 31440 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: CT DEPT OF ENVIRONMENTAL PROTECTION |NOTIFICATION DATE: 12/12/96 | | CITY: HARTFORD REGION: 1 |NOTIFICATION TIME: 12:48 [ET]| | COUNTY: HARTFORD STATE: CT |EVENT DATE: 12/12/96 | |LICENSE#: AGREEMENT: N |EVENT TIME: 09:45[EST]| | DOCKET: |LAST UPDATE DATE: 12/12/96 | | +-----------------------------+ | |PERSON ORGANIZATION| | |LAWRENCE DOERFLEIN RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: FRED SCHEURITZEL | | |HQ OPS OFFICER: LEIGH TROCINE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ELLINGTON WASTE TRANSFER STATION TRUCK ENTRY SCALE RADIATION ALARM REPORTED | | TO THE CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION DUE TO 400 æR/hr | | READINGS ON A DIAPER LOCATED IN STANDARD HOME TRASH | | | | THE ELLINGTON WASTE TRANSFER STATION LOCATED IN ELLINGTON, CONNECTICUT, | | REPORTED THE RECEIPT OF A RADIATION ALARM AT THE TRUCK ENTRY SCALES TO THE | | CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION LOCATED IN HARTFORD, | | CONNECTICUT. THE TRUCK THAT CAUSED THE ALARM WAS TRANSPORTING RURAL | | HOUSEHOLD TRASH. A CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION | | REPRESENTATIVE RESPONDED TO THE SITE AND RECEIVED A 400-æR/hr READING (ON | | CONTACT) ON A DIAPER WITH A SODIUM IODIDE DETECTOR. THE DIAPER HAS BEEN | | ISOLATED, LABELLED, AND LOCKED IN A LOCKER AT THE TRASH HAULER'S HOME | | OFFICE. THE CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION PLANS TO | | PERFORM A ISO-IDENTIFICATION TEST THIS AFTERNOON AND PLANS TO FURTHER | | INVESTIGATE THIS EVENT. | | | | THE LICENSEE NOTIFIED NRC REGION 1 (JOE FURIA) AND PLANS TO NOTIFY THE | | ENVIRONMENTAL PROTECTION AGENCY REGION 1 (JIM CHERNIAK). (REFER TO THE HOO | | LOG FOR A CONTACT TELEPHONE NUMBER.) | | | | ** 1350 DECEMBER 12, 1996, UPDATE FROM SCHEURITZEL RECEIVED BY STRANSKY ** | | | | TESTING REVEALED THAT THE ISOTOPE INVOLVED WAS TECHNETIUM-99M, AND AN | | ADDRESS IN THE TRASH BAG WITH THE DIAPER REFERENCED GROVE HILL MEDICAL | | CENTER. THE MEDICAL CENTER WAS CONTACTED, AND THE MEDICAL CENTER CONFIRMED | | THAT THE TRASH BAG HAD COME FROM ITS FACILITY. | | | | THE NRC OPERATIONS CENTER NOTIFIED THE R4DO (DOERFLEIN). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31441 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DAVIS BESSE REGION: 3 |NOTIFICATION DATE: 12/12/96 | |UNIT: [1] [ ] [ ] STATE: OH |NOTIFICATION TIME: 16:29 [ET]| |RX TYPE: [1] B&W-R-LP |EVENT DATE: 12/12/96 | +------------------------------------------------+EVENT TIME: 16:20[EST]| |NRC NOTIFIED BY: CRAIG GILLIG |LAST UPDATE DATE: 12/12/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MARK RING 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 | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | INOPERABILITY OF THE CONTROL ROOM EMERGENCY VENTILATION SYSTEM DUE TO TWO | | STATION VENT RADIATION MONITORS BEING OUT OF SERVICE FOR 87 MINUTES | | | | THE SITE HAS TWO STATION VENT RADIATION MONITORS WHICH MONITOR STATION | | EFFLUENT THAT IS RELEASED OUT THE STACK TO THE ATMOSPHERE, AND BOTH OF | | THESE MONITORS WERE OUT OF SERVICE (INOPERABLE) FOR 87 MINUTES ON DECEMBER | | 10, 1996. IT HAS SINCE BEEN DISCOVERED THAT BOTH TRAINS OF THE CONTROL | | ROOM EMERGENCY VENTILATION SYSTEM WERE INOPERABLE DURING THIS CONDITION. | | | | APPARENTLY, RADIATION MONITOR RE4598AA WAS OUT OF SERVICE DUE TO A BAD | | CHECK SOURCE, AND RADIATION MONITOR RE4598BA WAS OUT OF SERVICE FOR FILTER | | REPLACEMENT. THE OFFSITE DOSE CALCULATION MANUAL AND THE REMOVAL SECTION | | FOR THE SYSTEM PROCEDURE WERE BOTH CONSULTED, AND THESE TWO MANUALS DID NOT | | MENTION THE FACT THE CONTROL ROOM VENTILATION WAS REQUIRED TO BE PLACED ON | | RECIRCULATION DURING THIS OCCURRENCE PER THE LIMITS AND PRECAUTIONS OF | | ANOTHER PROCEDURE. BOTH STATION VENT RADIATION MONITORS ARE CURRENTLY | | OPERABLE AND IN SERVICE. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31442 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MILLSTONE REGION: 1 |NOTIFICATION DATE: 12/12/96 | |UNIT: [ ] [ ] [3] STATE: CT |NOTIFICATION TIME: 16:59 [ET]| |RX TYPE: [1] GE-3,[2] CE,[3] W-4-LP |EVENT DATE: 12/12/96 | +------------------------------------------------+EVENT TIME: 16:44[EST]| |NRC NOTIFIED BY: LOU PALONE |LAST UPDATE DATE: 12/12/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN ROGGE 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DISCOVERY OF INADEQUATE CABLE SEPARATION FOR THE CONTAINMENT LEAK | | MONITORING AND STEAM GENERATOR CHEMICAL FEED SYSTEMS | | | | THE LICENSEE DISCOVERED THAT CABLE SEPARATION FOR THE CONTAINMENT LEAK | | MONITORING AND STEAM GENERATOR CHEMICAL FEED SYSTEMS WAS LESS THAN THE | | REQUIRED DESIGN SEPARATION BETWEEN THE SAFETY-GRADE AND NON-SAFETY-GRADE | | CABLE. THIS EFFECT RENDERED THE CONTAINMENT ISOLATION VALVES FOR THOSE | | SYSTEMS INOPERABLE. | | | | ENGINEERING PERSONNEL PLAN TO ADDRESS THIS ISSUE. THE UNIT IS NOT | | CURRENTLY IN A TECHNICAL SPECIFICATION LIMITING CONDITION FOR OPERATION AS | | A RESULT OF THIS ISSUE BECAUSE THE UNIT IS IN COLD SHUTDOWN. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31443 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SEABROOK REGION: 1 |NOTIFICATION DATE: 12/12/96 | |UNIT: [1] [ ] [ ] STATE: NH |NOTIFICATION TIME: 18:12 [ET]| |RX TYPE: [1] W-4-LP |EVENT DATE: 12/12/96 | +------------------------------------------------+EVENT TIME: 18:00[EST]| |NRC NOTIFIED BY: MATHEW ARSENAULT |LAST UPDATE DATE: 12/12/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN ROGGE 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 | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DISCOVERY THAT EMERGENCY FEEDWATER SYSTEM ACTUATION MAY NOT OCCUR IF A | | DESIGN BASIS MAIN STEAM LINE BREAK OR FEEDWATER LINE BREAK ACCIDENT OCCURS | | ON THE 'A' STEAM GENERATOR AND THE 'B' TRAIN SOLID STATE PROTECTION SYSTEM | | FAILS TO ACTUATE | | | | THE LICENSEE DISCOVERED A DISCREPANCY IN THE UPDATED FINAL SAFETY ANALYSIS | | REPORT, CHAPTER 15, ACCIDENT ANALYSIS FOR THE FEEDWATER LINE BREAK (FLB) | | AND MAIN STEAM LINE BREAK (MSLB) ACCIDENTS. SPECIFICALLY, EMERGENCY | | FEEDWATER SYSTEM (EFW) AUTOMATIC ACTUATION MAY NOT OCCUR IF A DESIGN BASIS | | MSLB OR FLB ACCIDENT OCCURS ON THE 'A' STEAM GENERATOR AND THE 'B' TRAIN | | SOLID STATE PROTECTION SYSTEM (SSPS) FAILS TO ACTUATE. MANUAL ACTUATION OF | | THE EFW SYSTEM WOULD BE REQUIRED FOR DECAY HEAT REMOVAL. A MSLB OR FLB ON | | THE 'A' STEAM GENERATOR WILL RESULT IN INSUFFICIENT PRESSURE AT MS-V-393 | | WHICH IS ACTUATED BY THE 'A' TRAIN SSPS TO OPERATE THE TURBINE-DRIVEN EFW | | PUMP (FW-P-37A). A SINGLE ACTIVE FAILURE OF THE 'B' TRAIN SSPS WILL | | PREVENT AUTOMATIC OPENING OF THE STEAM SUPPLY FROM THE 'B' STEAM GENERATOR | | (MS-V-394) OR AUTOMATIC START OF THE MOTOR-DRIVEN EFW PUMP (FW-P-37B). THIS | | CONFLICTS WITH THE STATEMENT IN UPDATE FINAL SAFETY ANALYSIS REPORT SECTION | | 6.8.1 THAT A SINGLE ACTIVE FAILURE DOES NOT REDUCE THE PERFORMANCE | | CAPABILITIES OF THE SYSTEM. OPERATOR ACTION IS REQUIRED TO OPEN MS-V-394 | | OR TO START FW-P-37B FOR DECAY HEAT REMOVAL. | | | | PRELIMINARY REVIEW OF THE ACCIDENT ANALYSES INDICATES THAT THE CURRENT | | EMERGENCY OPERATING PROCEDURE ACTIONS WILL MANUALLY INITIATE EFW IN | | SUFFICIENT TIME TO PRECLUDE EXCEEDING THE EXISTING ACCIDENT ANALYSIS | | CONCLUSIONS. THE LICENSEE BELIEVES THAT THIS IS NOT A SAFETY SIGNIFICANT | | ISSUE. THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31444 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: POINT BEACH REGION: 3 |NOTIFICATION DATE: 12/12/96 | |UNIT: [1] [2] [ ] STATE: WI |NOTIFICATION TIME: 19:02 [ET]| |RX TYPE: [1] W-2-LP,[2] W-2-LP |EVENT DATE: 12/12/96 | +------------------------------------------------+EVENT TIME: 15:16[CST]| |NRC NOTIFIED BY: TODD MIELKE |LAST UPDATE DATE: 12/12/96 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MARK RING 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 Y 100 POWER OPERATION | 100 POWER OPERATION | | 2 | N N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DISCOVERY OF A CABLE SEPARATION ISSUE WHICH COULD RESULT IN THE INABILITY | | TO SUPPLY POWER TO SAFETY-RELATED LOADS | | | | AT 1516 CST, A CONDITION REPORT WAS DELIVERED TO THE CONTROL ROOM | | COMMUNICATING THE POTENTIAL FOR A SIMULTANEOUS FAILURE OF TWO INSTRUMENT | | BUSSES. THESE FAILURES COULD OCCUR DUE TO LACK OF CABLE SEPARATION FOR | | LOADS ASSOCIATED WITH THE INSTRUMENT BUSSES. | | | | UNIT 2 IS PRESENTLY SHUTDOWN AND DEFUELED AS PART OF A REFUELING OUTAGE. IF | | THE ABOVE SINGLE FAILURE OCCURRED COINCIDENT WITH THE OCCURRENCE OF A | | DESIGN BASIS ACCIDENT (WHICH INCLUDED A LOSS OF OFFSITE POWER AND A | | LEGITIMATE NEED FOR SAFETY INJECTION) ON THE OPPOSITE UNIT, AN OVERLOAD | | CONDITION ON ANY DIESEL OPERATING IN A SHARED CONFIGURATION COULD HAVE | | OCCURRED. THIS ULTIMATELY COULD HAVE RESULTED IN THE INABILITY TO SUPPLY | | POWER TO SAFETY-RELATED LOADS. | | | | SPECIFIC CABLE SEPARATION EVALUATIONS ARE CURRENTLY IN PROGRESS TO | | DETERMINE EXACT INSTRUMENTATION IMPACTS RESULTING FROM THIS CONDITION. AT | | THIS TIME, THE UNITS ARE NOT IN ANY TECHNICAL SPECIFICATION LIMITING | | CONDITIONS FOR OPERATION AS A RESULT OF THIS ISSUE. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31445 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SURRY REGION: 2 |NOTIFICATION DATE: 12/13/96 | |UNIT: [ ] [2] [ ] STATE: VA |NOTIFICATION TIME: 04:19 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 12/13/96 | +------------------------------------------------+EVENT TIME: 02:35[EST]| |NRC NOTIFIED BY: JAMES HELM |LAST UPDATE DATE: 12/13/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DAVID VERRELLI RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | A/R Y 11 POWER OPERATION | 0 HOT SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNIT TRIP WHILE SHUTTING DOWN DUE TO STEAM FLOW/FEED FLOW MISMATCH | | COINCIDENT WITH LOW STEAM GENERATOR LEVEL. | | | | WHILE SHUTTING DOWN FOR MAINTENANCE A REACTOR TRIP CAUSED BY A STEAM | | FLOW/FEED FLOW MISMATCH IN COINCIDENCE WITH LOW STEAM GENERATOR LEVEL IN | | THE "A" STEAM GENERATOR OCCURRED. ONE OF TWO CHANNELS OF "A" STEAM | | GENERATOR LEVEL WAS LESS THAN 20% NARROW RANGE WITH ONE OF TWO CHANNELS OF | | "A" STEAM FLOW GREATER THAN FEED FLOW. STEAM GENERATOR LEVEL CONTROL WAS | | IN MANUAL AT THE TIME OF THE TRIP. FOUR INDIVIDUAL CONTROL ROD POSITION | | INDICATIONS WERE BETWEEN 10 AND 32 STEPS FOLLOWING THE TRIP, HOWEVER, ALL | | ROD BOTTOM LIGHTS WERE LIT. EMERGENCY BORATION WAS INITIATED AS A SAFETY | | PRECAUTION. AUXILIARY FEED WATER INITIATED DUE TO LOW LOW STEAM GENERATOR | | LEVEL AND RCS PRIMARY TEMPERATURE DECREASED TO 539øF PRIOR TO RECOVERY TO | | 546øF. DECAY HEAT REMOVAL IS VIA THE MAIN CONDENSER. THE LICENSEE | | INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31446 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BROWNS FERRY REGION: 2 |NOTIFICATION DATE: 12/13/96 | |UNIT: [ ] [ ] [3] STATE: AL |NOTIFICATION TIME: 05:57 [ET]| |RX TYPE: [1] GE-4,[2] GE-4,[3] GE-4 |EVENT DATE: 12/13/96 | +------------------------------------------------+EVENT TIME: 01:36[CST]| |NRC NOTIFIED BY: TIM GOLDEN |LAST UPDATE DATE: 12/13/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DAVID VERRELLI RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | | | | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TRIP OF A VALVE POWER SUPPLY CAUSED NUMEROUS CONTAINMENT ISOLATION VALVES | | TO CLOSE. | | | | BREAKER 336 ON UNIT 3'S INSTRUMENT AND CONTROLS PANEL 9-9 TRIPPED WHILE | | SETTING VALVE LIMITS ON "3-FSV-84-8D" (DIVISION 2 CONTAINMENT ATMOSPHERE | | DILUTION). THE LOSS OF POWER OCCURRED WHILE A TEMPORARY POWER SUPPLY | | TRANSFORMER WAS BEING CONNECTED. THE LOSS OF POWER ALSO AFFECTED DRYWELL | | HYDROGEN AND OXYGEN ANALYZER ISOLATION VALVES, "3-FSV-76-49, 50, 55, 56, | | 57, 58, 59, 60, 65, 66, 67, & 68. ALL OF THESE VALVES ARE PRIMARY | | CONTAINMENT ISOLATION VALVES, WHICH UPON DEENERGIZATION WENT TO THEIR | | CLOSED, FAIL SAFE POSITION. VALVE MAINTENANCE WAS SUSPENDED WHILE THE | | LICENSEE DETERMINES THE CAUSE FOR THE LOSS OF POWER. THE LICENSEE WILL | | INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+