U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/21/94 - 09/22/94 ** EVENT NUMBERS ** 27804 27805 27806 27807 27808 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27804 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: GINNA REGION: 1 |NOTIFICATION DATE: 09/21/94 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 12:03 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 09/21/94 | +------------------------------------------------+EVENT TIME: 10:32[EDT]| |NRC NOTIFIED BY: MIKE MICKLOW |LAST UPDATE DATE: 09/21/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RON BELLAMY RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION |BOB DENNIG EO | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 98 POWER OPERATION | 98 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PARTIAL LOSS OF OFFSITE POWER | | | | PLANT WAS OPERATING AT APPROXIMATELY 98% POWER WHEN FOR UNKNOWN REASONS | | OFFSITE POWER (CIRCUIT 751 - 34.5KV) WAS LOST TO TRANSFORMER 12B WHICH | | CAUSED LOSS OF OFFSITE POWER TO SAFEGUARD BUSES 16 & 17. TRAIN "B" EDG | | AUTOMATICALLY STARTED AND ENERGIZED SAFEGUARDS BUSES 16 & 17. LICENSEE | | ENTERED ABNORMAL PROCEDURE ELECTRIC-1 (LOSS OF 12A AND/OR 12B TRANSFORMER) | | AT 1032ET. LICENSEE STABILIZED THE PLANT, AND THEN EXITED ABNORMAL | | PROCEDURE ELECTRIC-1 AT 1108ET. ELECTRIC POWER WAS REALIGNED TO THEIR OTHER | | OFFSITE POWER SUPPLY CIRCUIT 767, WHICH SUPPLIES ELECTRICAL POWER TO | | SAFEGUARD BUSES 14 & 18 FROM TRANSFORMER 12 "A". EDG "B" WAS SECURED AT | | 1108ET. EDG "A" & "B" ARE FULLY OPERABLE IF NEEDED. ALL OF THEIR EMERGENCY | | CORE COOLING SYSTEMS ARE FULLY OPERABLE IF NEEDED. (SEE EVENT # 27791) | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | ***UPDATE 1243ET 09/21/94 BY BANKS TAKEN BY MACKINNON*** | | | | ELECTRIC COMPANY NOTIFIED LICENSEE THAT A BACK HOE CAUSE A TREE TO FALL | | ONTO CIRCUIT 751 (34.5KV) POWER LINES WHICH CAUSED THE DE-ENERGIZATION OF | | THE LINE. ELECTRICAL POWER (VIA CIRCUIT 751) HAS BEEN RESTORED TO THE | | OFFSITE POWER SIDE OF TRANSFORMER 12 "B". LICENSEE WILL RESTORE CIRCUIT 751 | | ELECTRICAL POWER VIA TRANSFORMER 12 "B" TO SAFEGUARD BUSES 16 & 17 AFTER | | MAKING SURE THAT THE CIRCUIT IS STABLE. R1DO (RON BELLAMY) & NRR EO (BOB | | DENNIG) NOTIFIED. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27805 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 09/21/94 | |UNIT: [1] [2] [ ] STATE: PA |NOTIFICATION TIME: 15:19 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 09/21/94 | +------------------------------------------------+EVENT TIME: 14:45[EDT]| |NRC NOTIFIED BY: DAVID STEFFENAUER |LAST UPDATE DATE: 09/21/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RON BELLAMY RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP | | |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 | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF ALL EMERGENCY SIRENS. | | | | EMERGENCY RESPONSE PERSONNEL AT THE EMERGENCY OPERATING FACILITY NOTIFIED | | THE SHIFT SUPERVISOR THAT THE SIRENS ASSOCIATED WITH THEIR EMERGENCY | | NOTIFICATION SYSTEM WERE INOPERABLE. THE CAUSE OF THE PROBLEM HAS NOT YET | | BEEN DETERMINED AND INVESTIGATIONS ARE CONTINUING TO PINPOINT AND SOLVE THE | | PROBLEM. | | PENNSYLVANIA EMA, LUZERNE COUNTY EMA AND COLUMBIA COUNTY EMA HAVE ALL BEEN | | CONTACTED BY THE EMERGENCY RESPONSE PERSONNEL. | | | | RESIDENT INSPECTOR WAS INFORMED OF THIS EVENT BY THE LICENSEE. | | | | *** UPDATE @ 1746ET 09/21/94 BY STEFFENAUER TAKEN BY MACKINNON*** | | | | ALL EMERGENCY SIRENS RETURNED TO FULLY OPERABLE STATUS AFTER DISCOVERING | | AND CORRECTING A TELEPHONE LINE PROBLEM. R1DO (RON BELLAMY) NOTIFIED. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27806 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FITZPATRICK REGION: 1 |NOTIFICATION DATE: 09/21/94 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 17:31 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 09/21/94 | +------------------------------------------------+EVENT TIME: 13:50[EDT]| |NRC NOTIFIED BY: T PELTON |LAST UPDATE DATE: 09/21/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RON BELLAMY 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 75 POWER OPERATION | 75 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | NOTIFIED THE STATE OF NEW YORK OF EXCEEDING STATE POLLUTANT DISCHARGE | | ELIMINATION SYSTEM (SPDES) LIMIT OF 0.2ppm FOR FREE CHLORINE. | | | | RESIDUAL FREE CHLORINE LIMIT IN THE PLANT DISCHARGE CANAL (DISCHARGES TO | | LAKE ONTARIO) EXCEEDED SPDES LIMIT OF 0.2ppm. LICENSEE NOTIFIED THE STATE | | OF NEW YORK OF EXCEEDING THIS LIMIT. LICENSEE WILL INFORM NEW YORK STATE | | DEPARTMENT OF ENVIRONMENTAL CONSERVATION OF EXCEEDING THIS LIMIT ON | | 09/22/94 (24 HOUR REQUIREMENT). | | MAINTENANCE DRAINED A TEMPORARY CHLORINE TANK INTO THE INLET OF THEIR | | DISCHARGE CANAL WHICH DISCHARGES TO LAKE ONTARIO. CHLORINE SAMPLES TAKEN AT | | THIS TIME SHOWED FREE CHLORINE LEVEL AT 7ppm. BACKUP SAMPLES TAKEN AT | | 1410ET SHOWED FREE CHLORINE LEVEL OF 0.4ppm. SAMPLE TAKEN AT 1425ET SHOWED | | FREE CHLORINE LEVELS WERE 0.04ppm. LICENSEE IS STILL INVESTIGATING THIS | | EVENT. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE OF THIS EVENT. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27807 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 09/21/94 | |UNIT: [2] [ ] [ ] STATE: PA |NOTIFICATION TIME: 23:02 [ET]| |RX TYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 09/21/94 | +------------------------------------------------+EVENT TIME: 21:19[EDT]| |NRC NOTIFIED BY: HINNENKAMP |LAST UPDATE DATE: 09/21/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RON BELLAMY RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SHUTDOWN COOLING (SDC) LOST FOR 19 MINUTES WHILE REPLACING REACTOR WATER | | CLEANUP (RWCU) HIGH FLOW RELAY. THERE WAS NO INCREASE IN REACTOR VESSEL | | WATER TEMPERATURE DUE TO LOSS OF SDC. | | | | I&C TECHNICIANS WERE REPLACING RWCU HIGH FLOW RELAY PER A WORK ORDER. I&C | | TECHNICIANS THOUGHT THAT THE RELAY HAD BEEN PROPERLY ISOLATED ELECTRICALLY | | PER THE WORK ORDER. WHEN THE TECHNICIANS LIFTED THE RWCU HIGH FLOW RELAY | | NEUTRAL WIRE (WIRE WAS DAISY CHAINED TO THE PCIS RELAY FOR SDC SUCTION | | VALVE MO2-10-17) THEY HEARD A RELAY ACTUATE. THE TECHNICIANS IMMEDIATELY | | RE-LANDED THE NEUTRAL WIRE AND CONTACTED THE CONTROL ROOM. CONTROL ROOM | | PERSONNEL REVIEWED ELECTRICAL DIAGRAMS AND DISCOVERED THAT THE RWCU HIGH | | FLOW RELAY NEUTRAL WIRE WAS DAISY CHAINED TO THE PCIS RELAY FOR SDC SUCTION | | VALVE MO2-10-17 AND LIFTING THE NEUTRAL WIRE WOULD CAUSE A SDC SUCTION | | ISOLATION. THE WORK ORDER HAD MISSED ISOLATING THE PCIS RELAY. LICENSEE | | RESTORED SDC COOLING WITHIN 19 MINUTES AND REACTOR VESSEL WATER TEMPERATURE | | REMAINED AT 98 DEGREES. REACTOR VESSEL WATER TEMPERATURE IS MEASURED AT THE | | OUTLET OF THEIR RHR HEAT EXCHANGERS. FIVE OTHER VALVES ISOLATED PER THE | | PCIS GROUP 2 ISOLATION SIGNAL, BUT DID NOT AFFECT PLANT OPERATION. MAIN | | STEAM LINE COMMON DRAIN VALVE (MO2-2-77), INSTRUMENT NITROGEN SUPPLY TO | | DRYWELL VALVES (AO2969B & AO2968), AND DRYWELL FLOOR & EQUIPMENT DRAIN | | VALVES (MO2-20-83 & MO2-20-95) ISOLATED AND THEN WERE REPOSITIONED TO | | PROPER POSITION AFTER SDC WAS RESTORED. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 27808 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SALEM REGION: 1 |NOTIFICATION DATE: 09/22/94 | |UNIT: [ ] [2] [ ] STATE: NJ |NOTIFICATION TIME: 03:01 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 09/22/94 | +------------------------------------------------+EVENT TIME: 02:30[EDT]| |NRC NOTIFIED BY: GWIRTZ |LAST UPDATE DATE: 09/22/94 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BELLAMY RDO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 75 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LICENSEE COMMENCED UNIT SHUTDOWN TO COMPLY WITH TECHNICAL SPECIFICATION LCO | | ACTION STATEMENT DUE TO HIGH VIBRATION ON A CENTRIFUGAL CHARGING PUMP. | | | | THE LICENSEE COMMENCED A UNIT SHUTDOWN TO COMPLY WITH TECHNICAL | | SPECIFICATIONS AFTER HIGH VIBRATION WAS DETECTED IN THE SPEED INCREASER FOR | | THE #21 CENTRIFUGAL CHARGING PUMP. THE PUMP HAD PREVIOUSLY BEEN OUT OF | | SERVICE FOR SCHEDULED MAINTENANCE, AND HAD JUST BEEN RETURNED TO SERVICE. | | THE APPLICABLE TECHNICAL SPECIFICATION LCO (3.5.2.A) EXPIRED AT 0108 ON | | 9/22/94. | | | | THE LICENSEE PLANS TO PROCEED TO HOT SHUTDOWN AND REPLACE THE SPEED | | INCREASER UNIT ON THE CHARGING PUMP. THE RI HAS BEEN INFORMED. THE | | LICENSEE DOES NOT PLAN TO MAKE A PRESS RELEASE. | +------------------------------------------------------------------------------+