U.S. Nuclear Regulatory Commission Operations Center Event Reports For 12/20/94 - 12/21/94 ** EVENT NUMBERS ** 28052 28166 28167 28168 28169 28170 28171 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28052 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: OCONEE REGION: 2 |NOTIFICATION DATE: 11/21/94 | |UNIT: [ ] [2] [ ] STATE: SC |NOTIFICATION TIME: 04:44 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP |EVENT DATE: 11/21/94 | +------------------------------------------------+EVENT TIME: 01:40[EST]| |NRC NOTIFIED BY: TOM STEVENS |LAST UPDATE DATE: 12/20/94 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |ED McALPINE RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | | | | | 2 | N Y 72 POWER OPERATION | 72 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | NUCLEAR INSTRUMENT (NI) # 8 DELTA FLUX (TOP TO BOTTOM OF CORE) WAS FOUND TO | | BE RESPONDING OPPOSITE OF OTHER NUCLEAR INSTRUMENT CHANNELS (# 5, 6, & 7). | | | | DURING POWER ESCALATION FOR PHYSICS TESTING IT WAS NOTED THAT NI # 8 DELTA | | FLUX WAS RESPONDING OPPOSITE OF NI's 5, 6, & 7 WHEN REACTOR POWER | | DISTRIBUTION WAS BEING CHANGED. AT 0140ET RPS CHANNEL "D" (NI # 8) WAS | | DECLARED INOPERABLE AND PLACED IN MANUAL BYPASS AT 0201ET. INVESTIGATION BY | | I&E TECHNICIANS SHOWED THAT WHEN THE OUTPUT LEADS FOR NI # 8 DELTA FLUX | | WERE REVERSED IN THE RPS CHANNEL "D" PROPER NI RESPONSE WAS ACHIEVED. | | PREVIOUS TO THIS THERE WAS NI CALIBRATIONS PERFORMED ON NI's 5, 6, & 7 | | WITHOUT NI # 8 (RPS CHANNEL "D") BEING IN THE TRIPPED POSITION. THIS | | RESULTED IN THE RPS BEING IN A 2 OUT OF 2 LOGIC INSTEAD OF BEING IN 2 OUT | | OF 3 WHICH IS THE NORMAL CASE WHEN CALIBRATIONS ARE BEING PERFORMED. | | LICENSEE WILL REMAIN AT 72% POWER UNTIL INVESTIGATION IS COMPLETED AND THE | | LEADS ARE PROPERLY CONNECTED BEFORE INCREASING REACTOR POWER. LICENSEE | | THINKS THAT THE LEADS FOR NI # 8 (RPS CHANNEL "D") WERE IMPROPERLY HOOKED | | UP DURING THEIR REFUELING OUTAGE. DELTA FLUX IS USED IN THE RPS FOR THE | | FLUX TO FLOW IMBALANCE TRIP. | | IF EITHER NI's 5, 6, OR 7 HAVE TO BE CALIBRATED BEFORE NI # 8 IS CORRECTED | | LICENSEE WILL PLACE RPS CHANNEL "D" (NI # 8) IN ITS TRIPPED POSITION BEFORE | | CALIBRATING THE OTHER CHANNEL. | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | ***UPDATE AT 16:01 @ 12/20/94 BY PATTERSON TO GOULD*** THE LICENSEE IS | | RETRACTING THIS EVENT BECAUSE AFTER A FURTHER REVIEW IT WAS DETERMINED THAT | | IT DOES NOT MEET THE REPORTABILITY REQUIREMENTS OF 10 CFR 50.72. | | | | ALTHOUGH NORMAL 2 OF 4 LOGIC WAS REDUCED TO 2 OF 2 LOGIC, THE 2 OPERABLE | | CHANNELS WERE CAPABLE OF TRIPPING THE UNIT. AN ADDITIONAL SINGLE FAILURE | | MUST OCCUR TO PREVENT A TRIP. TS 3.5 PERMITS OPERATION WITH 2 OF 2 LOGIC, | | BUT REQUIRES THE UNIT TO BE IN HOT S/D WITHIN 12 HRS. DURING THE PERIOD | | THAT RPS CHANNEL "D" WAS INOPERABLE, OTHER CHANNELS WERE REMOVED FROM | | SERVICE ONE AT A TIME FOR CALIBRATION. SUCH PERIODS WERE LIMITED AND DID | | NOT EXCEED 2.5 HRS. | | | | THE RI WAS NOTIFIED. REG 2 SHYMLOCK WAS INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28166 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 12/20/94 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 06:04 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 12/20/94 | +------------------------------------------------+EVENT TIME: 02:45[PST]| |NRC NOTIFIED BY: BRAD HINDS |LAST UPDATE DATE: 12/20/94 | |HQ OPS OFFICER: WILLIAM HUFFMAN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |THOMAS WESTERMAN RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |JACK ROE EO | |ANEA 50.72(b)(1)(iii) EARTHQUAKE |EARL FEMA | | |ROTHMAN NRR | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N Y 90 POWER OPERATION | 90 POWER OPERATION | | 2 | N N 0 HOT STANDBY | 0 HOT STANDBY | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MINOR EARTHQUAKE FELT ONSITE. | | | | AN EARTHQUAKE OF MAGNITUDE 4.5 ON THE RICHTER SCALE OCCURRED AT O2:28 PST, | | 15 MILES NNE OF PASO ROBLES, CALIFORNIA. THIS IS APPROXIMATELY 50 MILES | | FROM THE PLANT SITE. THE EARTHQUAKE WAS BARELY FELT BY PLANT PERSONNEL, BUT | | PER THE LICENSEE'S EMERGENCY ACTION LEVELS, HAD TO BE CLASSIFIED AS AN | | UNUSUAL EVENT. | | | | THE EARTHQUAKE DID TRIGGER THE SITE'S TERRATECH SEISMIC MONITOR (LOW LEVEL) | | BUT DID NOT TRIGGER THE HIGH LEVEL KINEMETRICS MONITOR. BECAUSE THE | | KINEMETRICS WAS NOT TRIGGERED, THE LICENSEE CONCLUDED THAT GROUND MOTION | | WAS LESS THAN 0.02 G'S. | | | | THERE IS NO EVIDENCE OR REASON TO BELIEVE THAT ANY DAMAGE OCCURRED ONSITE. | | THERE HAS BEEN NO REPORTS OF DAMAGE OR INJURIES OFFSITE. | | | | THE LICENSEE WILL TERMINATE THE UNUSUAL EVENT AFTER ALL NOTIFICATIONS HAVE | | BEEN MADE AND LICENSEE MANAGEMENT IS SATISFIED WITH THE OPERATIONAL | | ASSESSMENT OF THE PLANT. | | | | THE CALIFORNIA OFFICE OF EMERGENCY SERVICES AND LOCAL AUTHORITIES HAVE BEEN | | INFORMED. THE RESIDENT INSPECTOR WILL BE INFORMED. | | | | PER THE NATIONAL EARTHQUAKE INFORMATION CENTER, THE QUAKE EPICENTER WAS AT | | 35.8 NORTH / 120.6 WEST. | | | | *** UPDATE FROM HINDS TO STRANSKY AT 06:55 EST ON 12/20/94 *** | | THE UNUSUAL EVENT WAS TERMINATED AT 03:49 PST AFTER LICENSEE MANAGEMENT | | CONCLUDED THERE WAS NO OPERATION CONCERN FROM THE EARTHQUAKE. | | | | THE RESIDENT INSPECTOR WILL BE NOTIFIED. R4DO (WESTERMAN); EO (ROE); AND | | FEMA (EARL) WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28167 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 12/20/94 | |UNIT: [ ] [2] [ ] STATE: GA |NOTIFICATION TIME: 15:05 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 12/20/94 | +------------------------------------------------+EVENT TIME: 14:15[CST]| |NRC NOTIFIED BY: MUSGROVE |LAST UPDATE DATE: 12/20/94 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MILTON SHYMLOCK RDO | |AESF 50.72(b)(2)(ii) ESF ACTUATION | | |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 | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE LICENSEE REPORTED THAT THE UNIT EXPERIENCED AN UNEXPECTED GROUP 2 | | CONTAINMENT ISOLATION. | | | | A SPURIOUS SIGNAL CAUSED THE ISOLATION OF THE REACTOR BUILDING AND | | REFUELING FLOOR VENTILATION SYSTEMS ALONG WITH THE ISOLATION OF THE SAMPLE | | LINES TO THE H2/O2 ANALYZER SYSTEM. THE SAMPLE SOURCE TO THE FISSION | | PRODUCT MONITORING SYSTEM WAS ALSO ISOLATED. LOSS OF THE FISSION PRODUCT | | MONITORING SYSTEM PLACED THE UNIT IN A TECHNICAL SPECIFICATION LIMITING | | CONDITION OF OPERATION ACTION STATEMENT TO BE IN HOT S/D WITHIN 6 HRS AND | | COLD S/D WITHIN 30 HRS. THE CAUSE OF THE GROUP 2 ISOLATION IS UNKNOWN AT | | THIS TIME, BUT THE LICENSEE SUSPECTS A BLOWN FUSE AND IS INVESTIGATING. THE | | RI WILL BE INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28168 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: UNKNOWN |NOTIFICATION DATE: 12/20/94 | | CITY: GRAND BAY REGION: 4 |NOTIFICATION TIME: 16:39 [ET]| | COUNTY: STATE: LA |EVENT DATE: 12/20/94 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 15:39[CST]| | DOCKET: |LAST UPDATE DATE: 12/20/94 | | +-----------------------------+ | |PERSON ORGANIZATION| | |WESTERMAN RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: COLEMAN(NAT RESPONSE CTR) | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE STATE OF LOUISIANA REPORTED THAT THEY HAD DISCOVERED A FACILITY MOUNTED | | ON A SUNKEN BARGE IN STATE WATERS. IT CONSISTED OF 4 TANKS ON TOP | | CONTAINING OIL. ALSO, THERE WAS A FORWARD STARBOARD INTERNAL TANK | | CONTAINING AN ACIDIC SUBSTANCE. TWO LOCATIONS ON THE BARGE ARE REPORTED AS | | EMITTING 1800CPM OF RADIATION. THEY ARE UNABLE TO IDENTIFY THE OWNER OF | | THE FACILITY. THE GULF STRIKE TEAM (GST) HAS BEEN ASKED TO ASSIST IN | | HAZARD CATEGORIZATION AND EVALUATION. THE GST WILL WORK WITH EPA TO ASSESS | | THE RADIATION THREAT AND TO FORMULATE A SAMPLING PLAN TO FURTHER CLASSIFY | | THE FACILITY | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28169 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: UNKNOWN |NOTIFICATION DATE: 12/20/94 | | CITY: OAKLAND REGION: 4 |NOTIFICATION TIME: 16:46 [ET]| | COUNTY: STATE: CA |EVENT DATE: 12/20/94 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 13:46[PST]| | DOCKET: |LAST UPDATE DATE: 12/20/94 | | +-----------------------------+ | |PERSON ORGANIZATION| | |WESTERMAN RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: TANNER(DOE) | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE STATE OF CALIFORNIA DEPARTMENT OF HEALTH AND SERVICES HAS REQUESTED | | THAT THE DOE LAWRENCE LIVERMORE LABORATORY PROVIDE RADIOLOGICAL ASSISTANCE | | RESPONSE. | | | | THIS REQUEST WAS BEING MADE BECAUSE A 2 OUNCE VIAL OF THORIUM NITRATE WAS | | CONFISCATED BY DEA AND THE POLICE DURING A RAID IN OAKLAND CALIFORNIA LAST | | WEEK. DEA WANTS THE LABORATORY TO PERFORM AN ANALYSIS OF THE MATERIAL. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28170 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: LASALLE REGION: 3 |NOTIFICATION DATE: 12/20/94 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 16:55 [ET]| |RX TYPE: [1] GE-5,[2] GE-5 |EVENT DATE: 12/20/94 | +------------------------------------------------+EVENT TIME: 12:50[CST]| |NRC NOTIFIED BY: ENTWISTLE |LAST UPDATE DATE: 12/20/94 | |HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER RDO | |AINA 50.72(b)(2)(iii)(A) POT UNABLE TO SAFE SD | | |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 | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | THE HIGH PRESSURE CORE SPRAY (HPCS) SYSTEM WAS DECLARED INOPERABLE DUE TO | | THE LOSS OF THE HPCS EMERGENCY DIESEL GENERATOR (EDG) COOLING WATER PUMP, | | CAUSING THE UNIT TO ENTER A 14 DAY TECHNICAL SPECIFICATION LIMITING | | CONDITION OF OPERATION. | | | | THE HPCS EDG COOLING WATER PUMP BREAKER, COMPARTMENT "1D", TRIPPED ON | | THERMAL OVERLOAD WHILE THE PUMP WAS RUNNING AS PART OF THE POST MAINTENANCE | | TESTING OF THE UNIT 2 HPCS EDG. THE HPCS EDG COOLING WATER PUMP WAS LEFT | | RUNNING FOLLOWING THE SHUTDOWN OF THE HPCS EDG PRIOR TO ITS RESTART FOR ITS | | MONTHLY SURVEILLANCE TEST. THESE ACTIVITIES WERE BEING PERFORMED AS PART | | OF THE RETURN TO SERVICE TESTING OF THE HPCS EDG FOLLOWING A PLANNED | | MAINTENANCE OUTAGE. THE CAUSE OF THE HPCS COOLING WATER PUMP BREAKER TRIP | | IS BEING INVESTIGATED. THE REACTOR CORE ISOLATION COOLING (RCIC) WAS | | OPERABLE AND AVAILABLE FOR BACKUP. THE RI HAS BEEN INFORMED. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 28171 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: ITT BARTON |NOTIFICATION DATE: 12/20/94 | | CITY: CITY OF INDUSTR REGION: 4 |NOTIFICATION TIME: 18:00 [ET]| | COUNTY: STATE: CA |EVENT DATE: 12/20/94 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[PST]| | DOCKET: |LAST UPDATE DATE: 12/20/94 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: PERRY(FAX) | | |HQ OPS OFFICER: CHAUNCEY GOULD | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ITT BARTON, SUPPLIER TO THE NUCLEAR POWER INDUSTRY OF BARTON MODELS | | 288A/289A INDICATING SWITCHES WHICH HAVE BEEN QUALIFIED FOR SAFETY | | APPLICATIONS, HAS DETERMINED FROM SEISMIC DATA RECORDED EARLIER THIS YEAR | | THAT THE SWITCHES MAY DEMONSTRATE SWITCH CHATTER THAT WAS NOT PREVIOUSLY | | IDENTIFIED. ITT BARTON HAS BEEN WORKING WITH WYLE LABORATORIES TO PERFORM | | SEISMIC TESTS ON THESE MODELS WHICH WILL EITHER VALIDATE PREVIOUS | | QUALIFICATION TEST RESULTS OR IDENTIFY NEW INSTRUMENT PERFORMANCE | | SPECIFICATIONS AS A FUNCTION OF SEISMIC G-LEVEL. THEY WILL CONTINUE THE | | EVALUATIONS THROUGH THE MONTH OF JANUARY. | | | | SENT TO WALT HAASS | +------------------------------------------------------------------------------+