U.S. Nuclear Regulatory Commission Operations Center Event Reports For 01/06/97 - 01/07/97 ** EVENT NUMBERS ** 31545 31546 31547 31548 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31545 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BEAVER VALLEY REGION: 1 |NOTIFICATION DATE: 01/06/97 | |UNIT: [ ] [2] [ ] STATE: PA |NOTIFICATION TIME: 06:16 [ET]| |RX TYPE: [1] W-3-LP,[2] W-3-LP |EVENT DATE: 01/06/97 | +------------------------------------------------+EVENT TIME: 05:56[EST]| |NRC NOTIFIED BY: CHRIS HYNES |LAST UPDATE DATE: 01/06/97 | |HQ OPS OFFICER: DICK JOLLIFFE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN ROGGE 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | A/R Y 98 POWER OPERATION | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | -AUTO Rx TRIP FROM 98% POWER DUE TO MAIN TURBINE TRIP FOR UNKNOWN REASONS- | | | | WHILE PLANT TECHNICIANS WERE TROUBLESHOOTING A LOSS OF REHEAT STEAM TO THE | | MOISTURE SEPARATOR REHEATERS, THE UNIT 2 MAIN TURBINE TRIPPED FOR UNKNOWN | | REASONS. THIS CAUSED THE REACTOR TO TRIP FROM 98% POWER. ALL CONTROL RODS | | INSERTED COMPLETELY. THE AUXILIARY FEEDWATER SYSTEM STARTED ON A LOW STEAM | | GENERATOR WATER LEVEL SIGNAL AS EXPECTED. STEAM IS BEING DUMPED TO THE | | MAIN CONDENSER. | | | | UNIT 2 IS STABLE IN MODE 3 (HOT STANDBY). | | | | THE LICENSEE IS INVESTIGATING THE CAUSE OF THE MAIN TURBINE TRIP. | | | | THE LICENSEE EXPECTS TO RESTART UNIT 2 ON 01/07/97. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31546 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOK REGION: 3 |NOTIFICATION DATE: 01/06/97 | |UNIT: [1] [2] [ ] STATE: MI |NOTIFICATION TIME: 11:52 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 01/06/97 | +------------------------------------------------+EVENT TIME: 08:48[EST]| |NRC NOTIFIED BY: KATHLEEN BURKETT |LAST UPDATE DATE: 01/06/97 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 94 POWER OPERATION | 94 POWER OPERATION | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTRACT SUPERVISOR TESTED POSITIVE FOR ALCOHOL FOLLOWING TEST FOR CAUSE. | | THE INDIVIDUAL INVOLVED HAS BEEN SUSPENDED FROM SITE ACCESS AND REFERRED TO | | THE EMPLOYEE ASSISTANCE PROGRAM FOR REHABILITATION BASED ON RETAINING | | EMPLOYMENT. | | | | THE LICENSEE INFORMED REGION 3 (CREED) AND THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31547 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALISADES REGION: 3 |NOTIFICATION DATE: 01/06/97 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 15:06 [ET]| |RX TYPE: [1] CE |EVENT DATE: 01/06/97 | +------------------------------------------------+EVENT TIME: 14:10[EST]| |NRC NOTIFIED BY: ROBERTS |LAST UPDATE DATE: 01/06/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 7 STARTUP | 21 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT ENTERED TECHNICAL SPECIFICATION 3.0.3 WHEN Tave DROPPED BELOW | | 525øF. (REFER TO EVENT #31548 FOR A SIMILAR OCCURRENCE.) | | | | THIS EVOLUTION OCCURRED WHILE THE LICENSEE WAS SYNCHRONIZING THE GENERATOR | | TO THE GRID. Tave DROPPED FROM APPROXIMATELY 533øF TO 524øF AND REMAINED | | <525øF FOR APPROXIMATELY 47 SECONDS. THIS WAS THE LENGTH OF TIME THE UNIT | | WAS IN THE TECHNICAL SPECIFICATION 3.0.3 LIMITING CONDITION FOR OPERATION | | (LCO) ACTION STATEMENT. THE UNIT EXITED THE LCO ACTION STATEMENT AS Tave | | WAS INCREASED ABOVE 525øF. | | | | THE LICENSEE IS INVESTIGATING WHY THIS TYPE OF TEMPERATURE DROP (TO BELOW | | 525øF) OCCURRED. | | | | THE NRC RESIDENT INSPECTOR WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 31548 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PALISADES REGION: 3 |NOTIFICATION DATE: 01/06/97 | |UNIT: [1] [ ] [ ] STATE: MI |NOTIFICATION TIME: 20:10 [ET]| |RX TYPE: [1] CE |EVENT DATE: 01/06/97 | +------------------------------------------------+EVENT TIME: 19:13[EST]| |NRC NOTIFIED BY: STEFFLER |LAST UPDATE DATE: 01/06/97 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 5 STARTUP | 0 HOT STANDBY | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE PLANT ENTERED TECHNICAL SPECIFICATION 3.0.3 WHEN Tave DROPPED BELOW | | 525øF. (REFER TO EVENT #31547 FOR A SIMILAR OCCURRENCE.) | | | | THIS EVOLUTION OCCURRED WHEN THE LICENSEE WAS TAKING THE TURBINE OFF LINE | | DURING A SHUTDOWN TO REPAIR A MAIN STEAM ISOLATION VALVE (MSIV) STEAM LEAK. | | THE PRIMARY COOLANT TEMPERATURE DROPPED TO <525øF (MINIMUM OF 522øF) | | PLACING THE PLANT IN A TECHNICAL SPECIFICATION 3.0.3 LIMITING CONDITION FOR | | OPERATION (LCO) ACTION STATEMENT. THE UNIT WAS IN THE LCO FOR <5 MINUTES | | BEFORE TEMPERATURE WAS INCREASED ABOVE 525øF. | | | | THE LICENSEE IS TAKING THE REACTOR TO COLD SHUTDOWN TO PERFORM THE MSIV | | STEAM LEAK REPAIRS AND OTHER PRIMARY COOLANT SYSTEM REPAIRS. THE LICENSEE | | IS ALSO INVESTIGATING THE CAUSE OF THE Tave DROP. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED. | +------------------------------------------------------------------------------+