U.S. Nuclear Regulatory Commission Operations Center Event Reports For 09/21/95 - 09/22/95 ** EVENT NUMBERS ** 29356 29357 29358 29359 29360 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29356 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DUANE ARNOLD REGION: 3 |NOTIFICATION DATE: 09/21/95 | |UNIT: [1] [ ] [ ] STATE: IA |NOTIFICATION TIME: 01:25 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 09/20/95 | +------------------------------------------------+EVENT TIME: 23:00[CDT]| |NRC NOTIFIED BY: HUPKE |LAST UPDATE DATE: 09/21/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ROGER LANKSBURY 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 +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED A CONDITION WHERE THE INBOARD HPCI STEAM SUPPLY LINE | | DID NOT ISOLATE ON AN ISOLATION SIGNAL. | | | | WHILE THEY WERE WARMING THE HPCI STEAM LINE IN THE PROCESS OF VERIFYING THE | | OPERABILITY OF HPCI, THEY RECEIVED A HPCI STEAM LINE HIGH FLOW SIGNAL AND A | | HPCI TURBINE TRIP ALARM. THEY BELIEVE IT WAS A SPURIOUS ALARM. THEY ALSO | | RECEIVED A GROUP 6A ISOLATION SIGNAL WHICH SHOULD HAVE ISOLATED "MO2238" | | (INBOARD HPCI STEAM SUPPLY VALVE), BUT IT DID NOT. AS A RESULT, THEY HAD | | TO CLOSE THE VALVE AND TAG IT DE-ENERGIZED CLOSED. HPCI IS STILL | | INOPERABLE, HOWEVER, FROM THE PREPLANNED MAINTENANCE ACTIVITY. THEY ARE | | ALSO STILL IN A 14-DAY LCO AS A RESULT OF THE MAINTENANCE ACTIVITY. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29357 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FT SAINT VRAIN REGION: 4 |NOTIFICATION DATE: 09/21/95 | |UNIT: [1] [ ] [ ] STATE: CO |NOTIFICATION TIME: 08:44 [ET]| |RX TYPE: [1] GA (GENERAL ATOMIC) |EVENT DATE: 09/21/95 | +------------------------------------------------+EVENT TIME: 06:04[MDT]| |NRC NOTIFIED BY: ROB PHELPS |LAST UPDATE DATE: 09/21/95 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BLAINE MURRAY RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | |LIZ TENEYCK NMSS | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 DECOMMISSIONED | 0 DECOMMISSIONED | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PARTIAL LOSS OF OFFSITE COMMUNICATIONS AT THE INDEPENDENT SPENT FUEL | | STORAGE INSTALLATION AT FT. SAINT VRAIN. COMMERCIAL TELEPHONE LINES WERE | | AVAILABLE, AND NO COMPENSATORY MEASURES WERE REQUIRED. (REFER TO THE HOO | | LOG FOR ADDITIONAL INFORMATION.) | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29358 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WATERFORD REGION: 4 |NOTIFICATION DATE: 09/21/95 | |UNIT: [3] [ ] [ ] STATE: LA |NOTIFICATION TIME: 13:54 [ET]| |RX TYPE: [3] CE |EVENT DATE: 09/21/95 | +------------------------------------------------+EVENT TIME: 13:54[CDT]| |NRC NOTIFIED BY: DAVID LITOFF |LAST UPDATE DATE: 09/21/95 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BLAINE MURRAY RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | SAFETY PARAMETER DISPLAY SYSTEM (SPDS) WILL BE PERIODICALLY INOPERABLE | | DURING REFUELING OUTAGE DUE TO PLANNED UPGRADING OF THE PLANT MONITORING | | COMPUTER. | | | | UNIT 3 IS SHUTTING DOWN FOR A 30 TO 45-DAY REFUELING OUTAGE BEGINNING | | 9/22/95 WITH A TARGET COMPLETION DATE OF 11/6/95. DURING THIS OUTAGE, SPDS | | WILL BE PERIODICALLY UNAVAILABLE DUE TO A PLANNED MONITORING COMPUTER | | UPGRADE. SHOULD SPDS NOT BE AVAILABLE AFTER 11/6/95, THE LICENSEE WILL | | MAKE A SEPARATE NOTIFICATION. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29359 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 09/21/95 | |UNIT: [1] [2] [ ] STATE: GA |NOTIFICATION TIME: 15:22 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 09/21/95 | +------------------------------------------------+EVENT TIME: 15:00[EDT]| |NRC NOTIFIED BY: RONNIE MUSGROVE |LAST UPDATE DATE: 09/21/95 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY RDO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM 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 | | 2 | N Y 85 POWER OPERATION | 85 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE NOAA WEATHER RADIO SYSTEM WAS REMOVED FROM SERVICE FROM 1500 TO 1508 | | HOURS DUE TO A PLANNED UPGRADE. | | | | "THE NOAA WEATHER RADIO SYSTEM WAS REMOVED FROM SERVICE TO UPGRADE THE | | SYSTEM WITH NEW EQUIPMENT. THIS IS THE PRIMARY MEANS OF NOTIFICATION FOR | | THE GENERAL PUBLIC OF A PLANT EMERGENCY. THE BACKUP SYSTEM WAS AVAILABLE | | FOR NOTIFICATION IF NEEDED. IT HAS BEEN RETURNED TO SERVICE AND WAS OUT OF | | SERVICE A TOTAL OF 8 MINUTES. THIS OUTAGE WAS FOR A MATERIAL CONDITION | | UPGRADE AT THE JACKSONVILLE, FLA. OFFICES." | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29360 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: FARLEY REGION: 2 |NOTIFICATION DATE: 09/21/95 | |UNIT: [1] [ ] [ ] STATE: AL |NOTIFICATION TIME: 18:45 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 09/16/95 | +------------------------------------------------+EVENT TIME: 09:39[CDT]| |NRC NOTIFIED BY: PHIL CRONE |LAST UPDATE DATE: 09/21/95 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHARLES HOSEY 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 N 0 HOT STANDBY | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE "A" LOOP MAIN STEAM ISOLATION VALVES (MSIV) WOULD NOT HAVE SHUT ON AN | | AUTO ISOLATION SIGNAL DUE TO MISALIGNED INSTRUMENT AIR DURING A | | SURVEILLANCE TEST. | | | | "AT 0939 ON 9/16/95 WHILE UNIT 1 WAS IN MODE 3, SHUTDOWN FOR REFUELING, THE | | "A" LOOP MSIVs FAILED TO CLOSE FROM THE MAIN CONTROL BOARD. A SURVEILLANCE | | TEST, STP 21.2 - MSIV AIR SYSTEM LEAK TEST, WAS IN PROGRESS AT THE TIME. | | THE MOST PROBABLE CAUSE AT THIS TIME WAS PERSONNEL ERROR IN THAT THE | | OPERATOR APPEARS TO HAVE MISALIGNED INSTRUMENT AIR TO THESE MSIVs DURING | | THE PERFORMANCE OF THIS TEST. INVESTIGATIONS REVEALED THAT THESE MSIVs | | WOULD NOT HAVE AUTO SHUT ON AN ISOLATION SIGNAL DURING PORTIONS OF THIS | | TEST. THE AIR SUPPLIES TO THESE MSIVs WERE LOCALLY VENTED AND BOTH OF | | THESE VALVES WERE SHUT BY 1013 HOURS. A ROOT CAUSE INVESTIGATION IS IN | | PROGRESS. BOTH VALVES HAVE BEEN STROKED SEVERAL TIMES SATISFACTORILY | | FOLLOWING THE REALIGNMENT OF THE INSTRUMENT AIR." | | | | THE LICENSEE DETERMINED THAT THIS WAS A REPORTABLE EVENT AT APPROXIMATELY | | 1600 HOURS ON 9/21/95. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+