U.S. Nuclear Regulatory Commission Operations Center Event Reports For 06/12/97 - 06/13/97 ** EVENT NUMBERS ** 32468 32469 32470 32471 32472 32473 32474 32475 +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32468 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 06/12/97 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 13:02 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 12:15[EDT]| |NRC NOTIFIED BY: JOHN DINELLI |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 THAT A VITAL AREA WAS ERRONEOUSLY DECLASSIFIED AND THAT DETECTION | | AIDS WERE DISARMED | | | | THE FOLLOWING TEXT IS A PORTION OF A FACSIMILE RECEIVED FROM THE LICENSEE: | | | | "ON MAY 23, 1997, A VITAL AREA WAS ERRONEOUSLY DECLASSIFIED, AND DETECTION | | AIDS WERE DISARMED. UPON DISCOVERY [AT 1215 ON JUNE 12, 1997], IMMEDIATE | | CORRECTIVE ACTION WAS TAKEN BY VERIFYING VITAL COMPONENT INTEGRITY AND | | RESTORING DETECTION AIDS. THE DECLASSIFICATION WAS DUE A MISUNDERSTANDING | | ABOUT THE NEED FOR VITAL AREA PROTECTION WHILE [THE UNIT WAS] SHUT DOWN." | | (REFER TO THE HOO LOG FOR ADDITIONAL INFORMATION.) | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32469 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 06/12/97 | |UNIT: [ ] [2] [3] STATE: IL |NOTIFICATION TIME: 15:10 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 13:13[CDT]| |NRC NOTIFIED BY: BRIAN GRANT |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES CREED 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | LOSS OF PROCESS COMPUTER | | | | THE LICENSEE REPORTED A LOSS OF THE PROCESS COMPUTER AS REQUIRED BY THE | | DRESDEN REPORTABILITY MANUAL. THE INITIAL ALARM WAS RECEIVED AT 1313 CDT, | | AND THE CAUSE OF THE LOSS IS CURRENTLY UNDER INVESTIGATION. | | | | THE PROCESS COMPUTER SUPPLIES INPUT TO THE SAFETY PARAMETER DISPLAY SYSTEM, | | MOST OF THE THERMAL CALCULATIONS, AND ALL COMPUTER POINTS. AT THIS TIME, | | ALL CONTROL ROOM INDICATIONS AND ALARMS ARE FUNCTIONAL. THE UNITS ARE NOT | | IN TECHNICAL SPECIFICATION LIMITING CONDITIONS FOR OPERATION AS A RESULT OF | | THIS ISSUE. | | | | THE LICENSE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR AND THE ILLINOIS | | DEPARTMENT OF NUCLEAR SAFETY INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32470 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: NINE MILE POINT REGION: 1 |NOTIFICATION DATE: 06/12/97 | |UNIT: [1] [ ] [ ] STATE: NY |NOTIFICATION TIME: 21:00 [ET]| |RX TYPE: [1] GE-2,[2] GE-5 |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 17:45[EDT]| |NRC NOTIFIED BY: BRIAN NESS |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICHARD KEIMIG RDO | |AINB 50.72(b)(2)(iii)(B) POT RHR INOP | | |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 +------------------------------------------------------------------------------+ | DISCOVERY THAT CORE SPRAY ISOLATION VALVES ARE SUSCEPTIBLE TO PRESSURE | | LOCKING DURING QUARTERLY SURVEILLANCE TESTING | | | | DURING A REVIEW OF DOCUMENTS FOR CLOSURE OF GENERIC LETTER 89-10, IT WAS | | DISCOVERED THAT UNIT 1's RESPONSE TO GENERIC LETTER 95-07 DID NOT | | APPROPRIATELY CONSIDER PRESSURE LOCKING CONCERNS FOR CORE SPRAY ISOLATION | | VALVES 40-02 AND 40-12. UNDER CERTAIN TESTING CONDITIONS, THESE VALVES ARE | | SUSCEPTIBLE TO PRESSURE LOCKING WHICH COULD PREVENT THE VALVES FROM OPENING | | TO PERFORM THEIR SAFETY FUNCTION. | | | | THESE VALVES ARE NORMALLY OPEN WITH THEIR MOTOR BREAKERS LOCKED OPEN. | | THEREFORE, THERE IS NOT AN OPERABILITY CONCERN DURING NORMAL OPERATION. | | PRESSURE LOCKING OF THESE VALVES IS ONLY A CONCERN DURING QUARTERLY | | SURVEILLANCE TESTING WHEN THESE VALVES ARE CLOSED TO ALLOW STROKING OF THE | | INSIDE CORE SPRAY ISOLATION VALVES. IF A LOSS OF COOLANT ACCIDENT WERE TO | | OCCUR WITH THE OUTSIDE ISOLATION VALVES CLOSED AND THE INSIDE ISOLATION | | VALVES OPEN, CALCULATIONS SHOW THAT THE SUBSEQUENT PRESSURE DIFFERENTIAL | | ACROSS THE DISC WOULD PREVENT THE OUTSIDE ISOLATION VALVE FROM RE-OPENING | | AS DESIGNED. THEREFORE, FOR THE PERIOD OF MAY 1995 TO THE PRESENT, DURING | | THE PERIODS OF QUARTERLY STROKE TESTING OF THE INSIDE CORE SPRAY ISOLATION | | VALVES, THE PLANT FAILED TO ENTER THE REQUIRED ONE-HOUR SHUTDOWN LIMITING | | CONDITION FOR OPERATION AS REQUIRED BY TECHNICAL SPECIFICATION 3.1.4.d. THE | | PLANT WAS NOT OPERATED IN THIS CONDITION FOR GREATER THAN ONE HOUR, AND | | OPERATION IN THIS CONDITION IS ALLOWED BY TECHNICAL SPECIFICATIONS. THIS | | REPORT IS BEING MADE BASED ON THE FACT THE THIS CONDITION ALONE COULD HAVE | | PREVENTED THE FULFILLMENT OF THE SAFETY FUNCTION OF A SYSTEM NEEDED TO | | REMOVE RESIDUAL HEAT AND TO MITIGATE THE CONSEQUENCES OF AN ACCIDENT. | | | | THE LICENSEE PLANS TO SUBMIT A TECHNICAL SPECIFICATION AMENDMENT IN THE | | NEAR FUTURE TO ALLOW CONTINUED OPERATION DURING TESTING OF CORE SPRAY | | ISOLATION VALVES WITHOUT ENTERING A ONE-HOUR SHUTDOWN LIMITING CONDITION | | FOR OPERATION. LONG RANGE PLANS ARE TO MODIFY THE VALVES TO PREVENT A | | BUILDUP OF PRESSURE BETWEEN THE DISCS IN ORDER TO PREVENT PRESSURE LOCKING. | | (THE CORE DAMAGE PROBABILITY OF THIS EVENT OCCURRING HAS BEEN CALCULATED TO | | BE 5E-7.) | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32471 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 06/12/97 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 21:06 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 10:15[PDT]| |NRC NOTIFIED BY: STEVE HIETT |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |TOM STETKA RDO | |NLTR LICENSEE 24 HR REPORT | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | DISCOVERY OF A MALE GREEN SEA TURTLE (CHELONIA MYDAS) IN THE INTAKE | | STRUCTURE | | | | IN ACCORDANCE WITH THE ENVIRONMENTAL PROTECTION PLAN (SECTION 4.1) AND | | SECTION 4.5.1 OF PLANT PROCEDURE EV1.1D3, ENVIRONMENTAL PROTECTION PLAN | | REPORTING, THE LICENSEE REPORTED THAT A MALE GREEN SEA TURTLE WAS FOUND | | RESTING BEHIND THE SEA WALL OF THE 2-3 BAR RACK. THE LICENSEE CONSIDERS | | THIS TO BE AN 'UNUSUAL OCCURRENCE OF AN ENDANGERED SPECIES' WHICH REQUIRES | | A 24-HOUR REPORT TO THE NRC. | | | | THIS IS THE THIRD OCCURRENCE OF GREEN SEA TURTLES FOUND ALIVE IN THE | | INTAKE. SMALLER FEMALE GREEN SEA TURTLES WERE RETRIEVED AND RELEASED FROM | | THE INTAKE ON JANUARY 10, 1997, AND APRIL 27, 1994. (SEE ENs 31574 AND | | 27182.) THESE TURTLES ARE RELATIVELY RARE NEAR THE SITE, AND THE FEDERAL | | CLASSIFICATION FOR THE GREEN SEA TURTLE ON THE PACIFIC COAST OF THE UNITED | | STATES IS 'THREATENED'. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR AND THE NATIONAL MARINE | | FISHERIES SERVICE. THE LICENSEE ALSO PLANS TO ISSUE A MARINE MAMMAL AND | | TURTLE STRANDING REPORT TO THE LONG BEACH OFFICE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32472 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CRYSTAL RIVER REGION: 2 |NOTIFICATION DATE: 06/12/97 | |UNIT: [3] [ ] [ ] STATE: FL |NOTIFICATION TIME: 21:47 [ET]| |RX TYPE: [3] B&W-L-LP |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 20:00[EDT]| |NRC NOTIFIED BY: RICHARD SWEENEY |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CAUDLE JULIAN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | DIFFERENTIAL PRESSURE ACROSS THE LETDOWN COOLER CONTAINMENT ISOLATION | | VALVES CAN BE GREATER THAN RATED | | | | DURING CALCULATION REVIEWS, IT WAS DETERMINED THAT THE DIFFERENTIAL | | PRESSURE ACROSS THE LETDOWN COOLER CONTAINMENT ISOLATION VALVES CAN BE | | GREATER THAN THE RATED DIFFERENTIAL PRESSURE, AND THIS COULD PREVENT FULL | | CLOSURE OF THE VALVES. A LOSS OF COOLANT ACCIDENT DOWNSTREAM OF THE | | CONTAINMENT ISOLATION VALVE AND A SINGLE FAILURE COULD CREATE AN UNISOLABLE | | LOSS OF COOLANT ACCIDENT OUTSIDE CONTAINMENT. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32473 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 06/12/97 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 22:03 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 17:14[CDT]| |NRC NOTIFIED BY: KEN HILL |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES CREED 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 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OPENING OF TEN TORUS TO DRYWELL VACUUM BREAKERS | | | | THE LICENSEE RECEIVED ALARMS AND INDICATIONS OF TEN TORUS TO DRYWELL VACUUM | | BREAKERS OPENING. DRYWELL PRESSURE SHOWED A SLIGHT DECREASE INDICATING | | THAT THE VALVES ACTUALLY MOVED. THE PROCESS COMPUTER SHOWED THAT THE | | VALVES STAYED OPEN FOR APPROXIMATELY THREE MINUTES. LICENSEE PERSONNEL | | WERE EXITING THE DRYWELL, AND IT APPEARED THAT THE X-2 INTERLOCK DOOR WAS | | CLOSED AT THE TIME THE ALARMS WERE RECEIVED. [HOO NOTE: SEE EN 32376 FOR | | SIMILAR EVENT.] | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32474 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: QUAD CITIES REGION: 3 |NOTIFICATION DATE: 06/12/97 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 22:28 [ET]| |RX TYPE: [1] GE-3,[2] GE-3 |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 18:00[CDT]| |NRC NOTIFIED BY: KEN HILL |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES CREED 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | FAILURE TO INSTALL AIR STARTING MOTORS PER THE MANUFACTURER'S | | RECOMMENDATION RESULTING IN THE UNIT 2 AND SWING DIESEL GENERATORS BEING | | DECLARED INOPERABLE | | | | THE UNIT 2 AND SWING DIESEL GENERATORS WERE DECLARED INOPERABLE DUE TO A | | PARTS ISSUE WITH THE AIR STARTING MOTORS. MAINTENANCE ON THE MOTORS WAS | | PERFORMED ON MAY 17, 1997, AND THE DIESELS WERE DECLARED OPERABLE. A | | SUBSEQUENT REVIEW OF THE PARTS EVALUATION IDENTIFIED THE MOTORS AS NOT | | BEING INSTALLED PER THE MANUFACTURER'S RECOMMENDATION. | | | | UNIT 2 IS NOT CURRENTLY IN A TECHNICAL SPECIFICATION LIMITING CONDITION FOR | | OPERATION AS A RESULT OF THIS ISSUE BECAUSE IT IS IN COLD SHUTDOWN. | | HOWEVER, UNIT 1 ENTERED A 7-DAY LIMITING CONDITION FOR OPERATION BECAUSE | | THE SWING DIESEL WAS DECLARED INOPERABLE WHILE UNIT 1 WAS OPERATING AT 100% | | POWER. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 32475 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ZION REGION: 3 |NOTIFICATION DATE: 06/12/97 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 22:28 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/12/97 | +------------------------------------------------+EVENT TIME: 16:40[CDT]| |NRC NOTIFIED BY: DAN KLOPSTEIN |LAST UPDATE DATE: 06/12/97 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES CREED RDO | |HFIT 26.73 FITNESS FOR DUTY | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | 2 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | FITNESS-FOR-DUTY REPORT INVOLVING A NON-SUPERVISORY CONTRACTOR LEAVING THE | | SITE PRIOR TO PERFORMING A FOR-CAUSE TEST | | | | A NON-SUPERVISORY CONTRACTOR LEFT THE SITE PRIOR TO PERFORMING A FOR-CAUSE | | FITNESS-FOR-DUTY TEST. THE INDIVIDUAL HAS NOT RETURNED TO THE SITE, AND | | THE INDIVIDUAL'S BADGE HAS BEEN PULLED. THE LICENSEE IS CURRENTLY | | INVESTIGATING THE CIRCUMSTANCES SURROUNDING THIS EVENT. | | | | THE LICENSEE PLANS TO NOTIFY THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+