U.S. Nuclear Regulatory Commission Operations Center Event Reports For 11/01/95 - 11/02/95 ** EVENT NUMBERS ** 29535 29536 29537 29538 29539 29540 29541 29542 29543 29544 +----------------------------------+ +-----------------------+ |GENERAL INFORMATION or OTHER | |EVENT NUMBER: 29535 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: GENERAL ELECTRIC |NOTIFICATION DATE: 11/01/95 | | CITY: SAN JOSE REGION: 4 |NOTIFICATION TIME: 09:22 [ET]| | COUNTY: STATE: CA |EVENT DATE: 11/01/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 00:00[PST]| | DOCKET: |LAST UPDATE DATE: 11/01/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | | | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: NOEL SHIRLEY |VERN HODGE NRR | |HQ OPS OFFICER: JOSEPH SEBROSKY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |CCCC 21.21 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | GENERAL ELECTRIC IS ISSUING A PART 21 REPORT DUE TO IMPROPER VALVE PACKING | | MATERIAL USED IN VALVES THAT WERE SUPPLIED TO THE PILGRIM NUCLEAR POWER | | PLANT. | | | | GE NUCLEAR ENERGY (GE-NE) BOUGHT (FROM RING-O VALVE SpA OF ITALY) AND | | PROVIDED (TO THE BOSTON EDISON COMPANY PILGRIM PLANT) FOUR GATE VALVES | | INTENDED FOR SAFETY-RELATED APPLICATIONS (TWO IN THE HPCI SYSTEM AND TWO IN | | THE RWCU SYSTEM). AS PART OF THE VALVE DELIVERY IMPROPER VALVE PACKING | | BUSHINGS WERE SUPPLIED WHICH CONTAINED BABBITT, A LEAD BEARING ALLOY WHICH | | IS KNOWN TO CAUSE EMBRITTLEMENT IN STAINLESS STEEL. THIS DID NOT MEET THE | | GE-NE VALVE SPECIFICATION. | | | | THE IMPROPER MATERIAL WAS IDENTIFIED DURING THE INSTALLATION PERIOD, AND | | THE BUSHINGS WERE REPLACED WITH BUSHINGS CONTAINING AN ACCEPTABLE MATERIAL. | | THE VALVES WERE NOT YET PLACED INTO NUCLEAR SERVICE AT THE TIME OF | | DISCOVERY. GE-NE HAS EVALUATED THE SAFETY SIGNIFICANCE OF THE IMPROPER | | BUSHING MATERIAL IN ALL FOUR VALVES AND HAS CONCLUDED THAT FOR THE VALVES | | IN THE HPCI SYSTEM, A SIGNIFICANT SAFETY CONCERN DID NOT EXIST. HOWEVER | | GE-NE ENGINEERING HAS NOT BEEN ABLE TO CONCLUSIVELY RULE OUT THE | | POSSIBILITY THAT THE POTENTIAL CONSEQUENCES OF HAVING THIS MATERIAL IN THE | | RWCU SYSTEM WOULD NOT RESULT IN A SUBSTANTIAL SAFETY CONCERN AND HAS, | | THEREFORE, ELECTED TO REPORT THIS UNDER 10 CFR PART 21. GE-NE HAS NOT | | SUPPLIED THIS VALVE TO ANY OTHER NUCLEAR POWER PLANT TO DATE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29536 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 11/01/95 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 11:32 [ET]| |RX TYPE: [1] CE |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 09:30[EST]| |NRC NOTIFIED BY: PETE EBERT |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: JOSEPH SEBROSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM LAZARUS 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 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CONTAINMENT PURGE VALVES WERE FOUND TO BE OUT OF POSITION DURING FUEL | | MOVEMENT IN VIOLATION OF TECHNICAL SPECIFICATIONS. | | | | AT 09:30 ON 11/1/95, WHILE LOADING FUEL INTO THE REACTOR, THE CONTAINMENT | | PURGE VALVES WERE FOUND TO BE IN THE ON-LINE MODE RATHER THAN IN THE | | REFUELING MODE AS REQUIRED BY TECH SPEC 3.13.D. THE PURGE VALVES WOULD NOT | | HAVE AUTOMATICALLY TRIPPED ON A HIGH RADIATION SIGNAL WHILE IN THE ON-LINE | | MODE. THE AUTOMATIC PURGE TRIP FUNCTION WAS DISABLED FOR A PERIOD OF LESS | | THAN THREE HOURS DURING FUEL MOVEMENTS BEFORE IT WAS DISCOVERED AND | | CORRECTED. | | | | THE LICENSEE HAS PLACED A HOLD ON FUEL MOVEMENTS BECAUSE OF THIS PROBLEM. | | THE LICENSEE BELIEVES THAT THE VALVES WERE REPOSITIONED TO THE ON-LINE | | POSITION DURING THE DAILY CHECK OF THE RADIATION MONITORING SYSTEM. FUEL | | MOVEMENT WAS NOT GOING ON AT THE TIME OF THIS CHECK, AND THE LICENSEE | | BELIEVES THAT THE VALVES WERE NOT RETURNED TO THE PROPER POSITION PRIOR TO | | THE RECOMMENCEMENT OF FUEL MOVEMENT. | | | | THE LICENSEE HAS INFORMED THE NRC RESIDENT INSPECTOR AND WILL INFORM THE | | STATE INSPECTOR OF THE PROBLEM. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29537 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SEQUOYAH REGION: 2 |NOTIFICATION DATE: 11/01/95 | |UNIT: [1] [ ] [ ] STATE: TN |NOTIFICATION TIME: 15:19 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 09:17[EST]| |NRC NOTIFIED BY: DENNIS DIMOPOULOS |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRUNO URYC 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 N 0 HOT SHUTDOWN | 0 HOT SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ESF ACTUATION - FEEDWATER ISOLATION IN MODE 4 | | | | OPENING THE LOOP 1 MAIN STEAM ISOLATION VALVE (MSIV) CAUSED THE #1 STEAM | | GENERATOR (S/G) LEVEL TO SPIKE TO THE HIGH-HIGH LEVEL SETPOINT. THIS | | GENERATED A FEEDWATER ISOLATION SIGNAL, AND ALL FOUR FEEDWATER LEVEL | | CONTROL VALVES SHUT. THE FEEDWATER SYSTEM WAS NOT SUPPLYING WATER TO THE | | S/Gs AT THIS TIME. THE ISOLATION OCCURRED AT 09:17 WHILE MAKING | | PREPARATIONS TO GO TO MODE 3, BUT IT WAS NOT DISCOVERED UNTIL 15:05. | | BECAUSE OF PLANT CONDITIONS, THE CLOSURE OF THE FEEDWATER CONTROL VALVES | | WAS THE ONLY EXPECTED ACTION RESULTING FROM THE FEEDWATER ISOLATION SIGNAL. | | | | MISREADING A PROCEDURE LED TO THE OPENING OF THE MSIV WITH A DIFFERENTIAL | | PRESSURE OF ABOUT 40 PSID ACROSS THE VALVE. THE PROCEDURAL LIMIT IS 25 | | PSID. THE INCREASED DIFFERENTIAL PRESSURE CAUSED THE INITIAL LEVEL SPIKE. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29538 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: CATAWBA REGION: 2 |NOTIFICATION DATE: 11/01/95 | |UNIT: [1] [2] [ ] STATE: SC |NOTIFICATION TIME: 15:35 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 09:25[EST]| |NRC NOTIFIED BY: JILL WILLIAMS |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRUNO URYC 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 N 0 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | NON-LICENSED SUPERVISOR CONFIRMED POSITIVE FOR ALCOHOL USE | | | | A NON-LICENSED SUPERVISOR WAS TESTED FOR CAUSE FOR ALCOHOL USE. THE TEST | | RESULTS WERE POSITIVE AS WERE THOSE OF A CONFIRMATORY TEST. THE | | INDIVIDUAL'S SITE ACCESS HAS BEEN REVOKED. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29539 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: VOGTLE REGION: 2 |NOTIFICATION DATE: 11/01/95 | |UNIT: [1] [ ] [ ] STATE: GA |NOTIFICATION TIME: 15:40 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 13:00[EST]| |NRC NOTIFIED BY: BOB BROWN |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRUNO URYC 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 | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | 24-HOUR REPORT - LICENSED POWER LIMIT SLIGHTLY EXCEEDED | | | | THE 8-HOUR ROLLING AVERAGE POWER LEVEL WAS 100.03% FROM 09:00 TO 17:00 ON | | 10/31. THE OVERPOWER WAS CAUSED BY A FLAW IN THE CALORIMETRIC CALCULATION. | | THE HEAT BALANCE DOES NOT TAKE INTO ACCOUNT EXCESS LETDOWN WHEN IN USE. THE | | PLANT CALCULATED THAT THIS COULD CAUSE AN ERROR OF AS MUCH AS 0.1% POWER OR | | ABOUT 3 MWt. | | | | THE LICENSEE HAS REDUCED POWER BY 0.1% TO PREVENT ANOTHER OVERPOWER WHILE | | EXCESS LETDOWN IS IN USE. LONG-TERM CORRECTIVE ACTION IS UNDER DISCUSSION. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 29540 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: ASHLAND PETROLEUM CO. |NOTIFICATION DATE: 11/01/95 | | CITY: CANTON REGION: 3 |NOTIFICATION TIME: 17:13 [ET]| | COUNTY: STATE: OH |EVENT DATE: 11/01/95 | |LICENSE#: 34-15998-01 AGREEMENT: N |EVENT TIME: 12:00[EST]| | DOCKET: |LAST UPDATE DATE: 11/01/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |LEWIS MILLER RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: JIM SEGER | | |HQ OPS OFFICER: DOUG WEAVER | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |BAB2 20.2201(a)(1)(ii) LOST/STOLEN LNM>10X | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ASHLAND PETROLEUM CO. REPORTED A LOST SOURCE | | | | THE LICENSEE REPORTED THE LOSS OF A 1.7-ęCi Sr-90 CHECK SOURCE. THE | | LICENSEE'S FACILITY IS LOCATED AT 2408 GAMBRINS SW, CANTON, OH. THE | | LICENSEE HAS A RECEIPT FOR FOUR SUCH CHECK SOURCES. THREE HAVE BEEN | | RETURNED TO THE SUPPLIER (TEXAS NUCLEAR). THE FOURTH CANNOT BE LOCATED. | | THE SOURCES WERE RECEIVED IN 1979 AND HAVE NOT BEEN USED. | | | | A CONTACT PHONE NUMBER IS AVAILABLE IN THE HOO LOG. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29541 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DRESDEN REGION: 3 |NOTIFICATION DATE: 11/01/95 | |UNIT: [ ] [ ] [3] STATE: IL |NOTIFICATION TIME: 18:32 [ET]| |RX TYPE: [1] GE-1,[2] GE-3,[3] GE-3 |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 15:30[CST]| |NRC NOTIFIED BY: STEVE KUCZYNSKI |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |LEWIS MILLER 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 REFUELING | 0 REFUELING | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MOTOR CONTROL CENTER (MCC) 38-3 FEEDER BREAKER HAS INCORRECT TRIP SETTING | | | | THE BREAKER WHICH FEEDS MCC 38-3 HAS A LONG-TERM TRIP SETTING OF 400 AMPS. | | THE CORRECT SETTING IS 600 AMPS. THIS CONDITION HAD BEEN PREVIOUSLY | | IDENTIFIED AND SHOULD HAVE BEEN CORRECTED IN JUNE 1994. THE CONDITION WAS | | DISCUSSED IN LER 94-18. THIS PARTICULAR BREAKER TRIP SETPOINT WAS NOT | | PROPERLY RESET. AN INVESTIGATION IS UNDERWAY TO DETERMINE WHY THIS ERROR | | OCCURRED. | | | | PREPARATIONS ARE BEING MADE TO TAKE BALANCE OF PLANT LOADS OUT OF SERVICE | | TO PROVIDE MARGIN TO THE BREAKER TRIP SETTING. WORK IS SCHEDULED FOR | | 11/2/95 TO ADJUST THE TRIP SETPOINT. MCC 38-3 FEEDS VARIOUS MAIN TURBINE | | AUXILIARIES, UNIT 3 EMERGENCY DIESEL GENERATOR AUXILIARIES, AND CLOSED | | COOLING SERVICE WATER PUMP CUBICLE COOLER FANS. | | | | THE LICENSEE WILL INFORM THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 29542 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: SCHLUMBERGER WELL SERVICES |NOTIFICATION DATE: 11/01/95 | | CITY: EVANSTON REGION: 4 |NOTIFICATION TIME: 19:00 [ET]| | COUNTY: STATE: WY |EVENT DATE: 11/01/95 | |LICENSE#: 42-00090-03 AGREEMENT: N |EVENT TIME: 10:00[MST]| | DOCKET: |LAST UPDATE DATE: 11/01/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |DALE POWERS RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: KEN TURNER | | |HQ OPS OFFICER: DOUG WEAVER | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | PERSONNEL CONTAMINATED | | | | TWO EMPLOYEES OF SCHLUMBERGER WELL SERVICES WERE CONTAMINATED WITH Sb-124 | | WHILE PERFORMING WORK AT A WELL IN UNITA COUNTY, WY. THE Sb-124 HAD BEEN | | PLACED IN THE WELL ON 10/30/95 BY CARDINAL SURVEYS CO. OF MIDLAND, TX. THE | | MATERIAL IS USED AS A TRACER IN WELLS. | | | | THE SCHLUMBERGER EMPLOYEES CONDUCTED A SURVEY WHEN THEY COMPLETED THEIR | | WORK AND NOTICED CONTAMINATION AROUND THE WELL RESULTING IN AN ON CONTACT | | READING OF ABOUT 5 mR/HR. THEY ALSO HAD CONTAMINATION ON THEMSELVES WHICH | | RESULTED IN 5-6 mR/HR. THE EMPLOYEES HAVE BAGGED THEIR CLOTHING AND | | SHOWERED. THE LICENSEE IS ALSO HAVING BIOASSAYS DONE, BUT THE RESULTS ARE | | NOT YET AVAILABLE. | | | | CONTACT NAMES AND PHONE NUMBERS ARE AVAILABLE IN THE HOO LOG. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29543 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PEACH BOTTOM REGION: 1 |NOTIFICATION DATE: 11/01/95 | |UNIT: [2] [3] [ ] STATE: PA |NOTIFICATION TIME: 19:56 [ET]| |RX TYPE: [2] GE-4,[3] GE-4 |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 16:00[EST]| |NRC NOTIFIED BY: MIKE GRIBBLE |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM LAZARUS RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 2 | N Y 95 POWER OPERATION | 95 POWER OPERATION | | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | OFFSITE NOTIFICATION OF AN OIL RELEASE | | | | THE LICENSEE NOTIFIED THE PA DEPT OF ENVIRONMENTAL RESOURCES, THE | | ENVIRONMENTAL PROTECTION AGENCY, AND THE NATIONAL RESPONSE CENTER OF THE | | RELEASE. LESS THAN 1 GALLON OF OIL ENTERED THE SUSQUEHANNA RIVER. THE | | SOURCE OF THE OIL WAS AN OLD SPILL WHICH OCCURRED ON 9/9/95. THE OIL | | ENTERED THE RIVER NOW BECAUSE OF HIGH WATER LEVEL. THE OIL HAS BEEN | | CONTAINED WITH A BOOM. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 29544 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: HATCH REGION: 2 |NOTIFICATION DATE: 11/01/95 | |UNIT: [ ] [2] [ ] STATE: GA |NOTIFICATION TIME: 23:06 [ET]| |RX TYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 11/01/95 | +------------------------------------------------+EVENT TIME: 21:30[EST]| |NRC NOTIFIED BY: JAMES BARNS |LAST UPDATE DATE: 11/01/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BRUNO URYC 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 REFUELING | 0 REFUELING | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | ESF ACTUATION - PARTIAL GROUP II ISOLATION | | | | THE OUTPUT BREAKER FOR RPS MG 2C-71001B TRIPPED OPEN AT 21:30 CAUSING A | | PARTIAL GROUP II ISOLATION. THE SHUTDOWN COOLING SUCTION VALVE 2E11F008 | | SHUT CAUSING A LOSS OF SHUTDOWN COOLING. FISSION PRODUCT MONITOR ISOLATION | | VALVE 2D11-F072 AND THE NITROGEN SUPPLY ISOLATION VALVE 2T48-F103 CLOSED. | | THE MAIN CONTROL ROOM WENT INTO THE PRESSURIZATION MODE. | | | | POWER WAS SUPPLIED FROM AN ALTERNATE SOURCE IN ABOUT 10 MINUTES. ALL | | VALVES WERE RETURNED TO THEIR PRE-TRIP CONDITION. SHUTDOWN COOLING WAS | | RESTORED AT 22:05. CORE TEMPERATURE HAD RISEN ABOUT TWO DEGREES. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+