U.S. Nuclear Regulatory Commission Operations Center Event Reports For 06/28/95 - 06/29/95 ** EVENT NUMBERS ** 28974 28988 28994 28995 28996 28997 28998 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28974 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 06/21/95 | |UNIT: [2] [3] [ ] STATE: PA |NOTIFICATION TIME: 12:06 [ET]| |RX TYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 06/21/95 | +------------------------------------------------+EVENT TIME: 01:38[EDT]| |NRC NOTIFIED BY: GLENN DISHONG |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LAWRENCE DOERFLEIN 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | 3 | N Y 81 POWER OPERATION | 81 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE DETERMINED AT 1130 EDT THAT A DESIGN ERROR IN A MOD COMMON TO | | TWO EMERGENCY DIESEL GENERATORS (EDG) PLACED THE PLANTS OUTSIDE OF THEIR | | DESIGN BASIS. | | | | EDG "E4" WAS OUT OF SERVICE FOR MAINTENANCE AND FOR INSTALLATION OF A | | MODIFICATION. EDG "E2" HAD THE SAME MOD INSTALLED ON 6/4/95. AT 0138 EDT, | | THE LICENSEE DETERMINED THAT A DESIGN PROBLEM WITH THE MOD WOULD PREVENT | | AUTO CLOSURE OF THE EDG OUTPUT CIRCUIT BREAKERS UPON LOSS OF POWER TO THEIR | | RESPECTIVE EMERGENCY LOAD CENTERS. CONSEQUENTLY, THE "E2" EDG WAS DECLARED | | INOPERABLE AT 0138 EDT. THE SIMULTANEOUS INOPERABILITY OF THE "E2" AND | | "E4" EDGs IS NOT PART OF THE DESIGN BASIS. | | | | THE DESIGN ERROR WAS CORRECTED, AND THE "E2" EDG WAS DECLARED OPERABLE AT | | 0250 EDT ON 6/21/95. MAINTENANCE AND MOD WORK IS CONTINUING ON THE "E4" | | EDG. WITH ONE EDG OUT OF SERVICE, THE LICENSEE IS IN A 7-DAY LCO PER TECH | | SPEC 3.9.B.3. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1041 EDT ON 6/28/95 FROM WASONG TAKEN BY KARSCH * * * | | THE LICENSEE'S ANALYSIS DETERMINED THAT ONE LOOP OF CORE SPRAY WOULD BE | | OPERABLE AND THAT WOULD BE ADEQUATE TO MAINTAIN FUEL TEMPERATURE BELOW 2400 | | DEGREES F. THIS INFORMATION IS CONTAINED IN A GENERIC STUDY APPLICABLE TO | | PEACH BOTTOM, NEDO 24708a, REV. 1, DATED 12/80. CONSEQUENTLY, THE PLANT | | WAS NOT OUTSIDE ITS DESIGN BASIS, AND THIS EVENT HAS BEEN RETRACTED. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. R1DO (BORES) NOTIFIED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28988 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 06/27/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 10:53 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 06/27/95 | +------------------------------------------------+EVENT TIME: 09:10[CDT]| |NRC NOTIFIED BY: REIS |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS RDO | |AESS 50.72(b)(1)(v) EMERGENCY SIREN INOP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | 2 | N Y 99 POWER OPERATION | 99 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE WAS NOTIFIED AT 0910 THAT 10 OUT OF 33 EVACUATION SIRENS WERE | | DECLARED INOP AS OF 0730. | | | | THIS WAS DETERMINED BY THE LICENSEE'S SIREN CONTRACTORS. THE CAUSE OF THE | | PROBLEM IS UNKNOWN. CREWS HAVE BEEN DISPATCHED TO INVESTIGATE AND REPAIR | | THE SIRENS. THE RESIDENT INSPECTOR HAS BEEN NOTIFIED. | | | | * * * UPDATE AT 2040 ON 6/28/95 BY ENTWISTLE TAKEN BY WEAVER * * * | | AS OF 1700 ON 6/28, ALL 10 OF THE INOPERABLE SIRENS HAVE BEEN REPAIRED AND | | RESTORED TO AN OPERABLE STATUS. HOO NOTIFIED RDO (PHILLIPS). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28994 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 06/28/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 05:31 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 06/28/95 | +------------------------------------------------+EVENT TIME: 01:44[CDT]| |NRC NOTIFIED BY: ART DANIELS |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS RDO | |ARPS 50.72(b)(2)(ii) RPS ACTUATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 100 POWER OPERATION | 91 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A CONTROL ROD DRIFTED IN DURING SURVEILLANCE TESTING. | | | | DURING PERFORMANCE OF THE AVERAGE POWER RANGE MONITOR (APRM) ROD BLOCK AND | | SCRAM FUNCTIONAL TEST, LIS-NR-303B, ON UNIT ONE, THE "B" APRM RECEIVED A | | HALF SCRAM AS PART OF THE NORMAL TESTING SEQUENCE. AT THAT POINT, CONTROL | | ROD "30-39" BEGAN TO DRIFT IN FROM POSITION 48. THE SCRAM ON THE "B" | | REACTOR PROTECTION SYSTEM CHANNEL WAS RESET, AND CONTROL ROD MOVEMENT | | STOPPED AT POSITION 20. POWER WAS REDUCED BY 75 MWE AS PART OF THE | | PROCEDURE FOR A MIS-POSITIONED CONTROL ROD. THE CONTROL ROD WAS THEN FULLY | | INSERTED TO POSITION 00 AND WAS TAKEN OUT OF SERVICE. THE LICENSEE IS | | INVESTIGATING THE CAUSE OF THE CONTROL ROD MOVEMENT. THE LICENSEE INFORMED | | THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28995 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 06/28/95 | |UNIT: [ ] [2] [3] STATE: IL |NOTIFICATION TIME: 09:11 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 06/28/95 | +------------------------------------------------+EVENT TIME: 07:20[CDT]| |NRC NOTIFIED BY: PHIL BRAGHINI |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: RUDY KARSCH +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS RDO | |DSAF 73.71(b)(1) SECURITY DEGRADATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N N 0 REFUELING | 0 REFUELING | | 3 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | AT 7:20 AM CDT THE LICENSEE DETERMINED THAT A SECURITY GUARD AT THE | | REFUELING ACCESS POINT HAD BEEN INATTENTIVE TO DUTY AT 12:44 PM ON 6/24/95. | | THE LICENSEE WAS NOT AWARE AT THE TIME THAT THE OFFICER WAS INATTENTIVE | | RATHER THAN JUST UNPROFESSIONAL AND FAILED TO COMPENSATE WITHIN THE | | REQUIRED TEN MINUTE TIME FRAME. THE LICENSEE WILL INFORM THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28996 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 06/28/95 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 13:34 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/28/95 | +------------------------------------------------+EVENT TIME: 09:30[PDT]| |NRC NOTIFIED BY: JOHN HUBBLE |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |GARY SANBORN RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | PHYSICAL SECURITY REPORT - CONTROLLED SUBSTANCE FOUND IN A VITAL AREA | | | | A CONTROLLED SUBSTANCE WAS FOUND AT 0845 AT THE EXIT OF THE RADIOLOGICALLY | | CONTROLLED AREA ON THE 85' LEVEL. THIS IS A VITAL AREA. A PRESUMPTIVE | | TEST CONFIRMED THE SUBSTANCE AS CONTRABAND AT 0930. THE SUBSTANCE WILL BE | | SENT TO A LABORATORY FOR FURTHER TESTING. AN INVESTIGATION IS IN PROGRESS. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28997 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MCGUIRE REGION: 2 |NOTIFICATION DATE: 06/28/95 | |UNIT: [1] [2] [ ] STATE: NC |NOTIFICATION TIME: 14:07 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 06/28/95 | +------------------------------------------------+EVENT TIME: 13:50[EDT]| |NRC NOTIFIED BY: DENNIS MCCORKEL |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |BRUNO URYC RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |BOB DENNIG EO | |ASHU 50.72(b)(1)(i)(A) PLANT S/D REQD BY TS |JOHN DAMICO FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | UNUSUAL EVENT - ALL SITE EMERGENCY DIESEL GENERATORS DECLARED INOPERABLE | | | | ALL SITE EMERGENCY DIESEL GENERATORS (EDG) WERE DECLARED INOPERABLE BASED | | ON A DESIGN FLAW IN THEIR TURBOCHARGERS. EACH UNIT HAS TWO EDGs. THE '2B' | | EDG IS TAGGED OUT AND UNAVAILABLE (THE TURBOCHARGER FAILED ON THIS EDG), | | THE OTHER THREE EDGs ARE AVAILABLE. ALL OTHER SAFETY SYSTEMS AND OFFSITE | | POWER SOURCES ARE OPERABLE. | | | | THE UNUSUAL EVENT WAS DECLARED AT 1350. THE LICENSEE ENTERED TECH SPEC | | 3.0.3 AT THE SAME TIME. BOTH UNITS MUST BE IN MODE 3 WITHIN 7 HOURS OF | | DECLARATION (2050) AND MODE 5 WITHIN AN ADDITIONAL 30 HOURS. | | | | THE EDGs WERE MANUFACTURED BY NORDBERG, AND THE TURBOCHARGERS WERE MADE BY | | ABB. THE INVESTIGATION IS FOCUSING ON A DESIGN FLAW THAT INCREASES THE | | TURBULENCE OF THE INTAKE AIR STREAM IN THE TURBOCHARGER. | | | | THE LICENSEE NOTIFIED APPROPRIATE STATE AND LOCAL OFFICIALS AS WELL AS THE | | NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 1850 ON 6/28/95 BY MCCORKEL TAKEN BY WEAVER * * * | | UNIT 1 IS IN MODE 3. ENFORCEMENT DISCRETION HAS BEEN GRANTED FOR UNIT 2. | | THE LICENSEE HAS 34 HOURS TO COMPLETE THE REPAIRS ON THE '2B' EDG. UPON | | COMPLETION OF REPAIRS TO THE '2B' EDG, THE LICENSEE WILL BE IN A 72-HOUR | | LCO WITH ONLY THE '2A' EDG INOPERABLE ON UNIT 2. THE POWER DESCENT ON UNIT | | 2 WAS STOPPED AT 30%. POWER WILL BE INCREASED TO 45% ON UNIT 2 AND HELD | | THERE. | | | | THE HOO NOTIFIED THE RDO (URYC) AND EO (SPESSARD). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28998 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: KEWAUNEE REGION: 3 |NOTIFICATION DATE: 06/28/95 | |UNIT: [1] [ ] [ ] STATE: WI |NOTIFICATION TIME: 15:28 [ET]| |RX TYPE: [1] W-2-LP |EVENT DATE: 06/28/95 | +------------------------------------------------+EVENT TIME: 12:15[CDT]| |NRC NOTIFIED BY: MARK ORTMEYER |LAST UPDATE DATE: 06/28/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MONTE PHILLIPS 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 Y 96 POWER OPERATION | 96 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ESF ACTUATION - STEAM GENERATOR BLOWDOWN ISOLATION | | | | DURING THE PERFORMANCE OF A FUNCTIONAL TEST ON RADIATION MONITOR CHANNEL | | R-19, AN INADVERTENT BLOWDOWN ISOLATION OCCURRED. THE ACTUATION OCCURRED | | WHEN THE KEY SWITCH FOR THAT MONITOR WAS REPOSITIONED FROM ON TO THE KEY | | PAD POSITION. THE LICENSEE SUSPECTS THAT THE SWITCH CONTACTS ARE FAULTY. | | | | ALL OF THE EXPECTED ISOLATIONS DID NOT OCCUR. THE LICENSEE IS SPECULATING | | THAT THE FAULTY SWITCH CAUSED A MOMENTARY LOSS OF POWER TO THE ISOLATION | | RELAYS. THEREFORE, SOME RELAYS CHANGED POSITION AND SOME DID NOT. THIS | | THEORY IS SUPPORTED BY A TEST THE LICENSEE CONDUCTED. POWER WAS REMOVED | | FROM ALL THE RELAYS, AND ALL OF THE EXPECTED ISOLATIONS OCCURRED. THE | | RADIATION MONITOR IS INOPERABLE. | | | | THE POINT BEACH RESIDENT INSPECTOR WAS NOTIFIED OF THIS EVENT, THE KEWAUNEE | | RESIDENT INSPECTORS WERE UNAVAILABLE. | +------------------------------------------------------------------------------+