U.S. Nuclear Regulatory Commission Operations Center Event Reports For 07/05/96 - 07/08/96 ** EVENT NUMBERS ** 30713 30714 30715 30716 30717 30718 30719 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30713 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 07/05/96 | |UNIT: [1] [2] [ ] STATE: PA |NOTIFICATION TIME: 10:26 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 07/05/96 | +------------------------------------------------+EVENT TIME: 07:00[EDT]| |NRC NOTIFIED BY: DONALD ROLAND |LAST UPDATE DATE: 07/05/96 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WALTER PASCIAK 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 | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | - LESS THAN THREE EDGs OPERABLE FOR SHORT PERIODS OF TIME - | | | | DURING ROUTINE PLANT OPERATOR ROUNDS ON 7/4/96, IT WAS NOTED THAT BREAKER | | ALIGNMENT WAS NOT CORRECT FOR THE "E" EMERGENCY DIESEL GENERATOR. THE "D" | | DIESEL WAS OUT OF SERVICE FOR PLANNED MAINTENANCE ACTIVITIES AND THE "E" | | WAS SUBSTITUTING IN ITS PLACE SINCE 6/14/96. THE "E" DIESEL WAS DECLARED | | INOPERABLE BECAUSE IT COULD NOT SUPPLY POWER TO ITS CLASS 1E DISTRIBUTION | | BUS DURING A LOSS OF OFFSITE POWER EVENT. NORMAL POWER IS SUPPLIED TO THIS | | DISTRIBUTION BUS VIA EITHER OF THE OFFSITE POWER SOURCES. | | | | THIS EVENT IN ITSELF WAS DETERMINED TO BE NOT REPORTABLE SINCE THE OTHER | | THREE DIESELS ("A","B","C") WERE OPERABLE AS WELL AS BOTH OFFSITE POWER | | SOURCES. THE BREAKER ALIGNMENT WAS CORRECTED AND THE DIESEL WAS | | SUBSEQUENTLY RUN TO DEMONSTRATE OPERABILITY. | | | | WHILE INVESTIGATING THIS EVENT, IT WAS DISCOVERED AT 0700 ON 7/5/96, THAT | | THE "A" AND "C" DIESELS WERE EACH DECLARED INOPERABLE FOR SHORT PERIODS OF | | TIME SINCE 6/14/96 TO PERFORM SWAPS OF BRIDGE RECTIFIERS. | | | | 6/24/96 0455-0456 "A" EDG INOP FOR BRIDGE TRANSFER | | 7/1/96 0445-0447 "C" EDG INOP FOR BRIDGE TRANSFER | | | | DURING THESE PERIODS, LESS THAN THREE OPERABLE EDGs WERE AVAILABLE FOR | | EMERGENCY RESPONSE. INVESTIGATION CONTINUES. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30714 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WATTS BAR REGION: 2 |NOTIFICATION DATE: 07/05/96 | |UNIT: [1] [ ] [ ] STATE: TN |NOTIFICATION TIME: 12:20 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 07/05/96 | +------------------------------------------------+EVENT TIME: 10:00[EDT]| |NRC NOTIFIED BY: McGINNIS |LAST UPDATE DATE: 07/05/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DECKER 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 +------------------------------------------------------------------------------+ | CONTROL ROOM EMERGENCY AIR TEMPERATURE CONTROL SYSTEM INOPERABLE IN PAST | | DUE TO PROCEDURAL INADEQUACY. | | | | THE FOLLOWING IS TEXT FROM A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "WITH UNIT ONE IN MODE 1 AT 100% POWER, OPERATIONS PERSONNEL WERE PREPARING | | TO SWAP OUT MAIN CONTROL ROOM CHILLERS. PRIOR TO PERFORMING THE | | APPROPRIATE PROCEDURE, IT WAS IDENTIFIED THAT THE PROCEDURE WOULD MAKE BOTH | | TRAINS OF CONTROL ROOM EMERGENCY AIR TEMPERATURE CONTROL SYSTEMS INOPERABLE | | AT THE SAME TIME FOR APPROXIMATELY 25 MINUTES. THIS WOULD PLACE THE UNIT | | IN TECHNICAL SPECIFICATION 3.0.3. THE EVOLUTION WAS STOPPED PRIOR TO | | ENTERING THIS CONDITION. THIS PROCEDURE HAS BEEN PERFORMED SEVERAL TIMES | | IN THE PAST. AN INVESTIGATION IS BEING PERFORMED TO DETERMINE THE EXTENT | | OF PREVIOUS PROCEDURE USE AND TECH SPEC ADHERENCE. BOTH TRAINS BEING | | INOPERABLE AT THE SAME TIME COULD IMPACT THE ABILITY TO MITIGATE THE | | CONSEQUENCES OF AN ACCIDENT." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30715 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: TURKEY POINT REGION: 2 |NOTIFICATION DATE: 07/05/96 | |UNIT: [3] [4] [ ] STATE: FL |NOTIFICATION TIME: 22:00 [ET]| |RX TYPE: [3] W-3-LP,[4] W-3-LP |EVENT DATE: 07/05/96 | +------------------------------------------------+EVENT TIME: 14:40[EDT]| |NRC NOTIFIED BY: ANDERSON |LAST UPDATE DATE: 07/05/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DECKER RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 4 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A CONTRACT EMPLOYEE WAS DETERMINED TO BE UNDER THE INFLUENCE OF AN ILLEGAL | | DRUG DURING A FOR-CAUSE TEST. ADDITIONALLY, SUSPECTED ILLEGAL DRUGS AND | | DRUG PARAPHERNALIA WERE FOUND IN THE POSSESSION OF THE INDIVIDUAL. THE | | EMPLOYEE'S ACCESS TO THE PLANT HAS BEEN TERMINATED, AND HE WAS ARRESTED BY | | THE DADE COUNTY POLICE DEPARTMENT. THE NRC RESIDENT INSPECTOR HAS BEEN | | INFORMED. SEE HOO LOG FOR DETAILS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30716 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VOGTLE REGION: 2 |NOTIFICATION DATE: 07/06/96 | |UNIT: [ ] [2] [ ] STATE: GA |NOTIFICATION TIME: 00:00 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 07/05/96 | +------------------------------------------------+EVENT TIME: 23:08[EDT]| |NRC NOTIFIED BY: CHARLIE MEYER |LAST UPDATE DATE: 07/06/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |THOMAS DECKER RDO | |AUNA 50.72(b)(1)(ii)(A) UNANALYZED COND OP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 30 POWER OPERATION | 30 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DEVIATION FROM ROD OVERLAP PROGRAM CREATED AN UNANALYZED CONDITION. | | | | WHILE INVESTIGATING A ROD CONTROL DEVIATION ALARM, THE LICENSEE'S CONTROL | | ROOM STAFF DISCOVERED THAT THE TIP TO TIP DIFFERENCE BETWEEN CONTROL BANK | | "C" AND CONTROL BANK "D" WAS 114 STEPS. THE DESIGN REQUIREMENT IS 115 | | STEPS. BASED ON DISCUSSIONS WITH WESTINGHOUSE AND PLANT ENGINEERING THE | | LICENSEE DETERMINED THAT THE UNIT COULD BE IN AN UNANALYZED CONDITION DUE | | TO THE DEVIATION FROM THE DESIGN REQUIREMENT. CONTROL BANK "C" IS | | CURRENTLY BEING REALIGNED TO REESTABLISH THE REQUIRED TIP TO TIP DISTANCE | | (8 RODS ONE STEP OUT). INVESTIGATION IS ONGOING. POWER ASCENSION WILL | | CONTINUE AS PART OF THE LICENSEE'S INVESTIGATION OF CONTROL ROD OPERATION. | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30717 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: OCONEE REGION: 2 |NOTIFICATION DATE: 07/06/96 | |UNIT: [ ] [2] [ ] STATE: SC |NOTIFICATION TIME: 13:00 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP |EVENT DATE: 07/06/96 | +------------------------------------------------+EVENT TIME: 12:15[EDT]| |NRC NOTIFIED BY: HAYES |LAST UPDATE DATE: 07/06/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DECKER 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 50 POWER OPERATION | 50 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE ENTERED TECHNICAL SPECIFICATION 3.0.3 AFTER FAILING TO RESET QPTR | | REACTOR TRIP SETPOINTS WITHIN 6 HOURS OF DROPPING CONTROL ROD. | | | | THE FOLLOWING IS TEXT FROM A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "UNIT 2 EXPERIENCED A DROPPED CONTROL ROD AT 0210. TECHNICAL | | SPECIFICATIONS REQUIRE NUCLEAR OVERPOWER TRIP SETPOINTS BASED ON FLUX AND | | FLUX/FLOW IMBALANCE TO BE REDUCED TO <66.5% WITHIN 6 HOURS. THE QUADRANT | | POWER TILT LIMITS HAVE THE SAME REQUIREMENTS. ONLY THE FLUX SETPOINTS WERE | | CHANGED. THIS WAS DISCOVERED AT 1215. TECHNICAL SPECIFICATION 3.0.3 WAS | | [RETROACTIVELY] ENTERED AT 0810. | | | | "THE DROPPED ROD WAS FOUND TO BE CAUSED BY A BLOWN FUSE. THE FUSE HAS BEEN | | REPLACED. THE CONTROL ROD DRIVE STATOR HAS BEEN VERIFIED TO BE FUNCTIONAL. | | THE DROPPED ROD WAS PULLED BACK INTO ALIGNMENT WITH ITS GROUP AND QUADRANT | | POWER TILT READINGS ARE DECREASING AND EXPECTED TO BE WITHIN LIMITS IN 4 | | HOURS. THE OVERPOWER TRIP SETPOINTS BASED ON FLUX/FLOW IMBALANCE ARE BEING | | ADJUSTED AT THIS TIME. THESE TRIP SETPOINTS ARE IN THE REACTOR PROTECTION | | SYSTEM CHANNELS, THEREBY MAKING ALL FOUR REACTOR PROTECTION SYSTEM CHANNELS | | INOPERABLE. THIS PLACES UNIT 2 IN A CONDITION THAT IS OUTSIDE THE DESIGN | | BASIS OF THE PLANT." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30718 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GINNA REGION: 1 |NOTIFICATION DATE: 07/07/96 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 22:17 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 07/07/96 | +------------------------------------------------+EVENT TIME: 19:33[EDT]| |NRC NOTIFIED BY: SENSENBACH |LAST UPDATE DATE: 07/07/96 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |PASCIAK 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 N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MOTOR-DRIVEN AUXILIARY FEEDWATER PUMP AUTOMATICALLY STARTED | | | | THE FOLLOWING IS TEXT FROM A FACSIMILE SUBMITTED BY THE LICENSEE: | | | | "IN PREPARATION FOR ENTERING MODE 2, ONE MAIN FEEDWATER PUMP BREAKER WAS | | PLACED IN TEST AND CLOSED. THIS ALLOWS FOR MOTOR DRIVEN AUXILIARY FEEDWATER | | PUMP AUTO-START FROM MAIN FEEDWATER PUMP TRIP (2 OF 2 LOGIC). DURING | | REALIGNMENT OF THE CONDENSATE AND FEEDWATER SYSTEMS FROM CLEANUP RECIRC TO | | AT-POWER LINEUP, THE MAIN FEEDWATER PUMP TRIPPED ON LOW SEAL WATER DP (11 | | PSID). THIS CAUSED AN AUTOSTART OF THE 'B' MOTOR DRIVEN AUXILIARY FEEDWATER | | PUMP. THE 'B' MDAFW PUMP DISCHARGE VALVE (MOV-4008) DID NOT THROTTLE BACK | | TO 200-230 GPM AS REQUIRED, APPARENTLY DUE TO THE DISCHARGE CROSS-TIE | | VALVES BEING OPEN (NORMAL FOR THE PRESENT MODE). THE VALVE WAS SUBSEQUENTLY | | TESTED WITH THE CROSS-TIES CLOSED, AND OPERATED PROPERLY. THE DISCHARGE | | CROSS-TIES ARE BEING MAINTAINED CLOSED (NORMAL MODE 1 CONFIGURATION) | | PENDING FURTHER INVESTIGATION." | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 30719 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALO VERDE REGION: 4 |NOTIFICATION DATE: 07/08/96 | |UNIT: [1] [ ] [ ] STATE: AZ |NOTIFICATION TIME: 04:57 [ET]| |RX TYPE: [1] CE,[2] CE,[3] CE |EVENT DATE: 07/08/96 | +------------------------------------------------+EVENT TIME: 00:00[MST]| |NRC NOTIFIED BY: RAY ROBERTS |LAST UPDATE DATE: 07/08/96 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES CAIN 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 +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED THE DOT NATIONAL RESPONSE CENTER AND THE ARIZONA | | DEPARTMENT OF ENVIRONMENTAL QUALITY THAT THEY SPILLED 500 GALLONS OF WATER | | FROM THEIR CONDENSATE POLISHER/DEMINERALIZER BEDS INTO THE YARD BY THE | | TURBINE BUILDING. THE WATER CONTAINED HIGH TOTAL DISSOLVED SOLIDS AND HAD | | A pH OF 13. THE SPILL AFFECTED ABOUT 1000 SQUARE FEET OF GROUND INSIDE THE | | PROTECTED AREA. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+