U.S. Nuclear Regulatory Commission Operations Center Event Reports For 03/10/95 - 03/13/95 ** EVENT NUMBERS ** 28356 28424 28473 28488 28512 28513 28514 28515 28516 28517 28518 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28356 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: INDIAN POINT REGION: 1 |NOTIFICATION DATE: 02/08/95 | |UNIT: [ ] [3] [ ] STATE: NY |NOTIFICATION TIME: 18:05 [ET]| |RX TYPE: [2] W-4-LP,[3] W-4-LP |EVENT DATE: 02/08/95 | +------------------------------------------------+EVENT TIME: 15:44[EST]| |NRC NOTIFIED BY: DAVID MOHRE |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |RICK KEIMIG 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 +------------------------------------------------------------------------------+ | EMERGENCY CORE COOLING PUMP SUCTION LINE COULD HAVE BEEN BLOCKED BY A TEST | | FLANGE THAT WAS STORED NEAR THE SUCTION FLANGE. | | | | THE FOLLOWING TEXT IS FROM A FACSIMILE SENT BY THE LICENSEE. | | | | "ON 02/08/95, ENGINEERING DETERMINED THAT THE PLANT WAS IN AN UNANALYZED | | CONDITION THAT COULD SIGNIFICANTLY COMPROMISE PLANT SAFETY. THIS IS DUE TO | | AN EMERGENCY CORE COOLING PUMP SUCTION LINE THAT COULD HAVE BEEN BLOCKED BY | | A TEST FLANGE THAT WAS STORED NEAR THE SUCTION FLANGE. THE TEST FLANGE WAS | | STORED BY BOLTING IT TO THE TOP OF THE PUMP SUCTION FLANGE LOCATED IN THE | | VAPOR CONTAINMENT SUMP. IT IS BELIEVED THAT THIS TEST FLANGE WAS STORED IN | | THIS CONFIGURATION WHILE THE PLANT WAS IN OPERATION. THE SUCTION LINE IS A | | BACKUP TO THE INTERNAL RECIRCULATION SYSTEM AND USED ONLY IF THE INTERNAL | | RECIRCULATION SYSTEM SUSTAINS A PASSIVE FAILURE DURING ACCIDENT MITIGATION. | | THE ENGINEERING EVALUATION THAT CONCLUDED THIS FINDING WAS PROMPTED BY A | | QUESTION FROM THE RESIDENT NRC INSPECTOR." | | | | RESIDENT INSPECTOR WILL BE INFORMED BY THE LICENSEE. | | | | ** UPDATE DATE/TIME: 3/10/95 @ 1659 EST *FROM LICENSEE:WOOLEY BY:McGINTY** | | THE LICENSEE RETRACTED THIS EVENT BASED ON A DETAILED ASSESSMENT. THE | | ASSESSMENT DETERMINED THAT THE TEST FLANGE ATTACHMENT STUDS WOULD NOT FAIL | | BECAUSE THEIR CAPACITY IS FAR ABOVE THE LOADINGS DEVELOPED DURING A DESIGN | | BASIS EARTHQUAKE. ADDITIONALLY, ANY CREDIBLE FLOW BLOCKAGE BY THE TEST | | FLANGE WOULD NOT PREVENT THE PUMPS FROM DELIVERING THEIR DESIGN BASIS FLOW, | | NOR WOULD AN ATTACHMENT STUD/NUT BE CAPABLE OF BEING SHEARED BY A ROTATING | | FLANGE OR PROPELLED THROUGH THE RECIRCULATION PIPING TO THE PUMPS. | | | | THEREFORE, THE AS FOUND CONDITION WAS NOT IN AN UNANALYZED CONDITION THAT | | COULD SIGNIFICANTLY COMPROMISE PLANT SAFETY, NOR IN A CONDITION THAT PLACED | | THE PLANT OUTSIDE THE DESIGN BASIS. THE TEST FLANGE AND BOLTING HAVE BEEN | | REMOVED AND ARE NOW STORED IN A LOCKED CABINET. THE CAUSE WAS INADEQUATE | | PROCEDURES. THE APPLICABLE PROCEDURE HAS BEEN REVISED TO PRECLUDE | | RECURRENCE. THE LICENSEE HAS INFORMED THE RESIDENT INSPECTOR. HOO | | NOTIFIED THE R1 (LANNING). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28424 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 02/22/95 | |UNIT: [1] [ ] [ ] STATE: IL |NOTIFICATION TIME: 18:32 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 02/22/95 | +------------------------------------------------+EVENT TIME: 15:00[CST]| |NRC NOTIFIED BY: WILLIAM BEST |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | FLOOR DRAIN PIPING NOT BUILT PER DESIGN COULD AFFECT OPERABILITY OF THE AFW | | SYSTEM | | | | "IT WAS DISCOVERED AT 1500 TODAY THAT THE FLOOR DRAIN PIPING IN THE 1B & 1C | | MSIV ROOM IS NOT BUILT PER DESIGN AND PROVIDES A DRAIN PATH INTO THE FLOOD | | PROTECTED AFW TUNNEL. THIS HAS THE POTENTIAL TO CAUSE THE AFW ISOLATION | | VALVES (1AF013 A THROUGH H) TO BECOME INOPERABLE SINCE THEY ARE NOT | | ENVIRONMENTALLY QUALIFIED. THIS COULD JEOPARDIZE CONTAINMENT INTEGRITY IN | | VIOLATION OF TECH SPEC 3.6.3 AND COULD ALSO AFFECT OPERABILITY OF THE AFW | | SYSTEM IN VIOLATION OF TECH SPEC 3.7.1.2. | | | | IT IS BELIEVED THAT THIS CONDITION IS OUTSIDE THE DESIGN BASIS OF THE | | PLANT. A DESIGN DRAWING REVIEW AND EVALUATION IS IN PROGRESS TO DETERMINE | | IF THE SAME CONDITION COULD EXIST ON UNIT 2. A PHYSICAL WALKDOWN OF THE | | PIPING IS SCHEDULED TO BE PERFORMED ON THURSDAY FEBRUARY 23." | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | ***UPDATE DATE\TIME:3/10/95 @ 1519 EST *FROM LICENSEE:ZOLAN BY:McGINTY*** | | THE LICENSEE TRANSMITTED VIA FACSIMILE THE FOLLOWING UPDATE TO THIS EVENT. | | SEE ALSO RELATED EVENT #28473 FOR UNIT 2: | | "THIS IS A SUPPLEMENTAL NOTIFICATION TO A 4-HOUR ENS NOTIFICATION MADE ON | | 2/22/95 AT 1500 HRS CST. THAT INITIAL REPORT IDENTIFIED A SITUATION IN | | WHICH THE UNIT 1 (WHICH WAS IN MODE 5 FOR A MAINTENANCE OUTAGE) FLOOR DRAIN | | PIPING FROM THE "1B" AND "1C" MSIV ROOM TO THE TENDON TUNNEL SUMP WAS NOT | | BUILT PER DESIGN, CAUSING THE POTENTIAL FOR THE AUXILIARY FEEDWATER | | ISOLATION VALVES (1AF013A THROUGH H) TO BECOME INOPERABLE SINCE THEY ARE | | NOT ENVIRONMENTALLY QUALIFIED. INITIAL INVESTIGATION FOUND THAT THIS | | SITUATION WAS NOT PRESENT ON UNIT 2. AS A PART OF THE ADDITIONAL | | INVESTIGATIONS INTO THE EVENT, THE DRAIN LINES FROM THE AUXILIARY FEEDWATER | | TUNNEL TO THE TENDON TUNNEL SUMP WERE ALSO REVIEWED. | | | | ON 3/3/95 AT 1430 CST, AFTER INSPECTION OF THE ENTIRE LINE (PORTIONS BOTH | | EXPOSED AND BURIED IN CONCRETE) BETWEEN THE AUX FEEDWATER TUNNEL FLOOR | | DRAIN AND THE TENDON TUNNEL SUMP, IT WAS FOUND THAT THE DRAIN LINE WAS ALSO | | NOT INSTALLED PER DESIGN ON UNIT 2, WHICH WAS OPERATING AT FULL POWER AT | | THE TIME. TWO CHECK VALVES THAT WERE SUPPOSED TO HAVE BEEN INSTALLED | | DURING INITIAL CONSTRUCTION WERE NEVER INSTALLED. A 1-HOUR ENS | | NOTIFICATION WAS MADE AT 1455 CST ON 3/3/95 FOR UNIT 2. AN INSPECTION OF | | THE EXPOSED PORTION OF THE PIPING FROM THE AUX FEED TUNNEL TO THE TENDON | | TUNNEL SUMP ON UNIT 1 YIELDED THE SAME RESULTS. BASED UPON THE RESULTS OF | | THE INSPECTIONS ON UNIT 2 AND SIMILAR INSPECTIONS AT BYRON UNITS 1 AND 2, | | IT WAS CONCLUDED THAT CHECK VALVES WERE NOT INSTALLED IN THE BURIED PORTION | | OF THE DRAIN LINE. THEREFORE, SINCE UNIT 1 IS STILL IN ITS MAINTENANCE | | OUTAGE, AS A CONSERVATIVE ACTION, TWO CHECK VALVES HAVE BEEN INSTALLED IN | | THE EXPOSED PORTION OF THE DRAIN LINE BETWEEN THE AUX FEEDWATER TUNNEL AND | | THE TENDON TUNNEL SUMP." | | END OF TEXT. | | | | THE LICENSEE WILL BE INSTALLING THE CHECK VALVES AT UNIT 2 WITH THE UNIT | | OPERATING AT POWER. THE LICENSEE WILL INFORM THE RESIDENT INSPECTOR. HOO | | NOTIFIED THE R3DO (SHAFER). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28473 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 03/03/95 | |UNIT: [ ] [2] [ ] STATE: IL |NOTIFICATION TIME: 15:55 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 03/03/95 | +------------------------------------------------+EVENT TIME: 14:30[CST]| |NRC NOTIFIED BY: STEFAN |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |MCCORMICKBARGER RDO | |ADEG 50.72(b)(1)(ii) DEGRAD COND DURING OP | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | FLOOR DRAIN PIPING FROM THE AUXILIARY FEEDWATER (AFW) TUNNEL TO THE TENDON | | TUNNEL SUMP IS NOT BUILT AS PER DESIGN. | | | | BRAIDWOOD UNIT 1 ON 02/22/95 DISCOVERED THAT THEIR FLOOR DRAIN PIPING PER | | DESIGN COULD AFFECT OPERABILITY OF THEIR AFW SYSTEM AND REPORTED THIS EVENT | | (# 28424) TO THE OPERATION CENTER ON 02/22/95. UNIT 2 STARTED INVESTIGATING | | TO SEE IF THEY HAD THIS SAME PROBLEM AND FOUND THAT THEY HAD A DIFFERENT | | PROBLEM. THE FLOOR DRAIN PIPING FROM THE AFW TUNNEL TO THE TENDON SUMP WAS | | FOUND TO NOT BE BUILT AS PER DESIGN. THE FLOOR DRAIN LINE SHOULD HAVE CHECK | | VALVES INSTALLED TO PREVENT BACKFLOW IN THE EVENT OF A FLOOD. THE CHECK | | VALVES ARE NOT PRESENT. THIS COULD POTENTIALLY RENDER THE TWO AUXILIARY | | FEEDWATER CONTAINMENT ISOLATION VALVES 13A THROUGH 13H INOPERABLE. | | CORRECTIVE ACTION: LICENSEE HAS INSTALLED FLOOR DRAIN PLUGS IN THE MAIN | | STEAM TUNNEL FLOOR DRAIN (MAIN STEAM TUNNEL IS LOCATED ABOVE THE AUXILIARY | | FEEDWATER TUNNEL) AND ALL THE DRAINS LEADING TO THE SUMP. LICENSEE REMOVED | | THE SUMP COVER TO PREVENT SUMP PRESSURIZATION IN THE EVENT OF A FLOODING | | CONDITION. THIS PROBLEM DOES NOT AFFECT THE OPERABILITY OF THEIR MOTOR | | DRIVEN AUXILIARY FEEDWATER PUMP AND THEIR DIESEL DRIVEN AUXILIARY FEEDWATER | | PUMP. | | BRAIDWOOD UNIT 1 MIGHT NOT HAVE CHECK VALVES IN THE ABOVE MENTIONED SYSTEM. | | BRAIDWOOD UNIT 1 IS INVESTIGATING THIS POTENTIAL PROBLEM. | | | | RESIDENT INSPECTOR WAS INFORMED BY THE LICENSEE. | | | | *** UPDATE DATE\TIME:3/10/95 @ 1519 EST *FROM LICENSEE:ZOLAN BY:McGINTY*** | | THE LICENSEE MADE A COURTESY NOTIFICATION UPDATE OF THIS EVENT AND RELATED | | EVENT #24824 (ON UNIT 1). REGARDING THE APPLICABILITY OF THE ISSUE | | REPORTED PER EVENT #24824 FOR UNIT 1 (POTENTIAL INOPERABILITY OF AFW | | ISOLATION VALVES), INITIAL INVESTIGATION FOUND THAT THIS SITUATION IS NOT | | PRESENT AT UNIT 2. | | | | ADDITIONALLY, BASED ON THE RESULTS OF INSPECTIONS PERFORMED AT BRAIDWOOD | | UNITS 1 AND 2 AND BYRON UNITS 1 AND 2 (REGARDING UNIT 2's DRAIN LINE | | BETWEEN THE AUX FEEDWATER TUNNEL FLOOR DRAIN AND THE TENDON TUNNEL SUMP), | | TWO CHECK VALVES HAVE BEEN INSTALLED IN THE EXPOSED PORTION OF THE DRAIN | | LINE AT UNIT 1. SIMILAR CHECK VALVES WILL BE INSTALLED AT UNIT 2 WHILE THE | | UNIT REMAINS AT POWER. | | | | THE LICENSEE WILL INFORM THE RESIDENT INSPECTOR. HOO NOTIFIED THE R3DO | | (SHAFER). | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28488 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: SAINT LUCIE REGION: 2 |NOTIFICATION DATE: 03/06/95 | |UNIT: [1] [2] [ ] STATE: FL |NOTIFICATION TIME: 07:59 [ET]| |RX TYPE: [1] CE,[2] CE |EVENT DATE: 03/06/95 | +------------------------------------------------+EVENT TIME: 06:20[EST]| |NRC NOTIFIED BY: RICHARD CZARNECKI |LAST UPDATE DATE: 03/12/95 | |HQ OPS OFFICER: JOSEPH SEBROSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |WILLIAM CLINE RDO | |DSAF 73.71(b)(1) SECURITY DEGRADATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 HOT STANDBY | 0 HOT STANDBY | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | A TRAINING WEAPON THAT WAS NOT USABLE WAS DISCOVERED TO BE MISSING. | | COMPENSATORY ACTIONS TAKEN. LICENSEE WILL INFORM THE RESIDENT INSPECTOR. | | SEE HOO LOG FOR DETAILS. | | | | * * * UPDATE 0831 3/8/95 FROM CZARNECKI TO STRANSKY * * * | | | | THIS LICENSEE HAS DETERMINED THAT THIS IS A LOGGABLE EVENT, AND THEREFORE | | HAS RETRACTED THIS NOTIFICATION. THE LICENSEE WILL INFORM THE NRC RESIDENT | | INSPECTOR. SEE HOO LOG FOR DETAILS. NOTIFIED R2DO (COLLINS). | | | | *** UPDATE DATE\TIME:3/12/95 @ 1931 ***FROM LICENSEE:BAILEY BY:McGINTY*** | | THE LICENSEE PROVIDED A COURTESY INFORMATIONAL CALL THAT THE UNUSABLE | | WEAPON WAS RECOVERED AT 1730 EST ON 3/12/95. SEE HOO LOG FOR ADDITIONAL | | DETAILS. THE LICENSEE WILL INFORM THE RESIDENT INSPECTOR. HOO NOTIFIED | | R2DO COLLINS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28512 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: BRAIDWOOD REGION: 3 |NOTIFICATION DATE: 03/10/95 | |UNIT: [1] [2] [ ] STATE: IL |NOTIFICATION TIME: 04:48 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 03/10/95 | +------------------------------------------------+EVENT TIME: 03:20[CST]| |NRC NOTIFIED BY: RICHARD |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SHAFER RDO | |AENS 50.72(b)(1)(v) ENS INOPERABLE | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 COLD SHUTDOWN | 0 COLD SHUTDOWN | | 2 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | EMERGENCY NOTIFICATION SYSTEM AND COMMERCIAL TELEPHONE COMMUNICATION LINES | | INOPERABLE | | | | AT 0250 CST, THE SHIFT ENGINEER WAS NOTIFIED THAT ALL OFFSITE COMMERCIAL | | COMMUNICATIONS FROM THE BRAIDWOOD SITE HAD BEEN LOST. ADDITIONALLY, THE | | ENS LINE TO THE NRC WAS ALSO DETERMINED TO BE INOPERABLE. WHEN TELEPHONE | | COMMUNICATIONS HAD NOT BEEN RESTORED WITHIN 30 MINUTES, THE LICENSEE | | DETERMINED THAT THE LOSS OF COMMUNICATIONS CAPABILITY WAS REPORTABLE TO THE | | NRC. THE LOCAL TELEPHONE COMPANY HAS INFORMED THE LICENSEE THAT A FIBER | | OPTIC CABLE SERVING THE TOWN OF BRAIDWOOD, IL HAD BEEN CUT. | | | | THE BRAIDWOOD SITE CAN COMMUNICATE WITH OTHER CECO SITES AND WITH THE LOAD | | DISPATCHER USING A MICROWAVE TELEPHONE LINK AND CECO TIE LINES. THE NRC | | RESIDENT INSPECTOR WILL BE INFORMED OF THIS NOTIFICATION BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28513 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 03/10/95 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 10:34 [ET]| |RX TYPE: [1] CE |EVENT DATE: 03/10/95 | +------------------------------------------------+EVENT TIME: 09:30[EST]| |NRC NOTIFIED BY: McDOUGOLD |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOYNER 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | MORE THAN 1 PERCENT OF TUBES IN STEAM GENERATOR DETERMINED TO BE DEFECTIVE | | DURING EDDY CURRENT TESTING. | | | | THE FOLLOWING IS TEXT OF A FACSIMILE RECEIVED FROM THE LICENSEE: | | | | "RESULTS OF EDDY CURRENT TESTING OF #2 S/G TUBES WERE CLASSIFIED AS | | CATEGORY C-3 BECAUSE GREATER THAN 1% OF THE SAMPLE WERE DEFECTIVE (64 OF | | 5608). THE DEFECTIVE TUBES CONTAINED IMPERFECTIONS WHICH EXCEEDED THE | | PLUGGING LIMIT DEPTH OF 40% OF NORMAL WALL THICKNESS. 100% OF THE TUBES IN | | ALL THREE STEAM GENERATORS ARE ALREADY SCHEDULED FOR INSPECTION. TECHNICAL | | SPECIFICATION 4.10 REQUIRES A REPORT TO THE NRC PURSUANT TO 10 CFR | | 50.72(b)(2)(i)." | | | | THE NRC RESIDENT HAS BEEN INFORMED BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28514 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PERRY REGION: 3 |NOTIFICATION DATE: 03/10/95 | |UNIT: [1] [ ] [ ] STATE: OH |NOTIFICATION TIME: 11:34 [ET]| |RX TYPE: [1] GE-6 |EVENT DATE: 03/10/95 | +------------------------------------------------+EVENT TIME: 08:52[EST]| |NRC NOTIFIED BY: KELLY |LAST UPDATE DATE: 03/10/95 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |SHAFER 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 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNPLANNED CLOSURE OF DRYWELL PURGE ISOLATION VALVES DURING TESTING | | | | DURING PERFORMANCE OF THE DRYWELL ATMOSPHERE RADIATION MONITOR FUNCTIONAL | | TEST, CONTAINMENT PURGE ISOLATION VALVES 1M51-F090 AND 1M51-F110 CLOSED | | UNEXPECTEDLY. THE LICENSEE HAS DETERMINED THAT THE VALVE CLOSURE WAS NOT | | DUE TO A VALID HIGH RADIATION SIGNAL. THE LICENSEE STATED THAT THE CAUSE | | OF THE EVENT WAS PERSONNEL ERROR IN PERFORMING THE TEST. THE LICENSEE HAS | | NOT REESTABLISHED DRYWELL PURGE, AS THE RADIATION MONITOR SURVEILLANCE IS | | STILL ONGOING. | | | | THE LICENSEE HAS INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28515 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 03/10/95 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 22:22 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 03/10/95 | +------------------------------------------------+EVENT TIME: 18:50[PST]| |NRC NOTIFIED BY: BECKER |LAST UPDATE DATE: 03/11/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |CHRIS VANDENBURGH RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |MARTIN VIRGILIO EO | |AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP |BAGWELL FEMA | |AENS 50.72(b)(1)(v) ENS INOPERABLE |D. CHAMBERLAIN R4 | |ANOT 50.72(b)(1)(iii) OTHER NATURL/EXT COND |R. SCARANO R4 | | |J. DYER R4 | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | UE DECLARED AT MANAGEMENT'S DISCRETION BASED ON SEVERE WEATHER IN THE AREA. | | | | THE LICENSEE DECLARED AN UNUSUAL EVENT (AT THE DISCRETION OF MANAGEMENT) | | DUE TO PLANT ACCESS BEING RESTRICTED BECAUSE OF SEVERE WEATHER. MUD SLIDES | | AND FLOODING ARE RESTRICTING ACCESS TO THE PLANT. ADDITIONALLY, 42 OF 131 | | EMERGENCY SIRENS ARE INOPERABLE DUE TO POWER OUTAGES. SHIFT PERSONNEL ARE | | HAMPERED FROM COMING ON-SITE TO RELIEVE THE WATCH. THE ON-COMING SHIFT | | RELIEF CREW IS BEING STAGED AT TWO DIFFERENT OFF-SITE FACILITIES, UNTIL | | ACCESS TO THE PLANT IS RESTORED. THE LICENSEE IS ARRANGING TEMPORARY | | RELIEF FOR ON-WATCH OPERATORS (4 HOUR BREAKS). THE LICENSEE HAS NOTIFIED | | THE STATE AND LOCAL AUTHORITIES, AND THE REGIONAL FEMA OFFICE HAS BEEN | | NOTIFIED. | | | | SHORTLY AFTER THE INITIAL CALL, THE MORROW BAY 230 KV SWITCHING CENTER | | NOTIFIED THE CONTROL ROOM THAT DUE TO FLOODING, THERE IS SOME DANGER | | REGARDING THE LOSS OF THE SWITCHING CENTER. SOME UNDERGROUND CABLING AT | | THE SWITCHING CENTER HAS EXPERIENCED FLOODING, AND THE COAST GUARD IS | | ASSISTING IN PUMPING IT DOWN (THE FLOODING LEVELS ARE DECREASING). THE 230 | | KV MORROW BAY SWITCHING CENTER IS "START-UP" (BACKUP) POWER, WITH OFF-SITE | | POWER NORMALLY SUPPLIED TO THE UNIT VIA THE 500 KV OUTPUT OF THE MAIN | | GENERATOR. THE UNIT WOULD BE IN A 72 HOUR LCO IF THE 230 KV STARTUP POWER | | SOURCE WERE LOST. THE LICENSEE ALSO HAS THE CAPABILITY OF ESTABLISHING A | | BACK FEED FROM THE 500 KV LINES (CALLED DELAYED ACCESS), WHICH WOULD TAKE | | OPERATOR MANIPULATIONS (CONSERVATIVELY ABOUT 1 HOUR) TO PROVIDE POWER TO | | THE NON-VITAL BUSES. | | | | THE UNITS HAVE NOT BEEN EXPERIENCING ANY GRID INSTABILITY. ALL OF THE | | ECCSs AND EDGs ARE OPERABLE. THE COUNTY CONSIDERS THE CONDITIONS REGARDING | | EVACUATION OF THE PUBLIC TO BE ACCEPTABLE, AND THE COUNTY EOC HAS BEEN | | STAFFED. THE LICENSEE IS PLANNING TO REDUCE POWER FOR UNIT 1 TO ABOUT 50% | | AS A PRECAUTIONARY MEASURE DUE TO OCEAN CONDITIONS. THERE HAVE BEEN SOME | | INDICATIONS OF INCREASING DIFFERENTIAL PRESSURE IN THE CIRCULATING WATER | | SYSTEM (RECENTLY HAS STABILIZED), AND REDUCING POWER WOULD PROVIDE | | ADDITIONAL FLEXIBILITY WITH REGARDS TO THE CIRC WATER SYSTEM. | | | | THE LAST OF THE SEVERE WEATHER IS CONCLUDING NOW, ACCORDING TO FORECASTS. | | RAIN, HOWEVER, IS FORECAST FOR 2 MORE DAYS. THE LICENSEE WILL TERMINATE | | THE UNUSUAL EVENT WHEN ACCESS TO THE PLANT HAS BEEN RESTORED, WEATHER | | CONDITIONS HAVE STABILIZED, AND AT THE DISCRETION OF MANAGEMENT. | | | | TWO CONFERENCE CALLS (2300 AND 2400 EST) INVOLVING NRC PERSONNEL AND THE | | RESIDENT INSPECTORS WERE ORGANIZED TO ASSESS THE SITUATION. AEOD | | (JORDAN/BROCKMAN) AND R4RA (CALLAN) WERE ALSO INFORMED. | | | | * UPDATE DATE/TIME: 3/11/95 @ 1625 EST *FROM LICENSEE:MAGRUDER BY:McGINTY* | | | | THE LICENSEE TERMINATED THE UNUSUAL EVENT AT 1300 PST. THE TERMINATION IS | | BASED ON THE FOLLOWING PRESENT STATUS OF THE PLANT AND COUNTY CONDITIONS | | FOLLOWING THIS MAJOR STORM: | | | | 1. PLANT ACCESS ROADS ARE OPEN, AND ALL MUD SLIDES ARE CLEARED. | | | | 2. CAPABILITY FOR OFF-SITE PERSONNEL TO PROVIDE EMERGENCY RESPONSE TO | | THE PLANT HAS BEEN RESTORED. | | | | 3. OPERATIONS AND SUPPORT PERSONNEL HAVE BEEN RELIEVED FROM THEIR | | EXTENDED WATCHES. | | | | 4. MAJOR HIGHWAY ROUTES AND EVACUATION ROUTES ARE NOW OPEN. | | | | 5. THE NATIONAL WEATHER SERVICE FLOOD WATCH HAS BEEN LIFTED. THE | | CURRENT WEATHER FORECAST IS FOR 1/2 TO 1 INCH OF RAIN TODAY, | | CLEARING TOMORROW. | | | | 6. A PLANT SITE INSPECTION HAS BEEN PERFORMED AND THERE IS NO DAMAGE | | AFFECTING SAFETY EQUIPMENT OR CAUSING OPERATIONAL CONSTRAINTS. | | | | UNIT 1 POWER WAS REDUCED TO 50% AS A PRECAUTION DUE TO THE POTENTIAL OF | | OCEAN KELP PLUGGING CONDENSER WATER BOX TUBES. THE INTAKES SCREENS, | | HOWEVER, SUCCESSFULLY REMOVED THE KELP AND THE UNIT IS NOW BEING RETURNED | | TO FULL POWER. ONLY 15 OF 131 EMERGENCY WARNING SIRENS IN THE COUNTY | | REMAIN OUT OF SERVICE DUE TO ISOLATED POWER OUTAGES. | | | | ALL WATCHES WERE RELIEVED BY 0830 PST THIS MORNING. THE LICENSEE HAS | | NOTIFIED THE RESIDENT INSPECTORS, THE COUNTY AND THE OFFICE OF EMERGENCY | | SERVICES OF THE UNUSUAL EVENT TERMINATION. THE LICENSEE WILL ALSO BE | | ISSUING A PRESS RELEASE REGARDING THE EMERGENCY DECLARATION. HOO NOTIFIED | | THE R4DO (VANDENBURGH), THE EO (VIRGILIO) AND FEMA (SIMMERS). | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 28516 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: FLORIDA OFFICE OF RADIATION CONTROL |NOTIFICATION DATE: 03/12/95 | | CITY: WEST PALM BEACH REGION: 2 |NOTIFICATION TIME: 14:10 [ET]| | COUNTY: STATE: FL |EVENT DATE: 03/11/95 | |LICENSE#: AGREEMENT: Y |EVENT TIME: 20:00[EST]| | DOCKET: |LAST UPDATE DATE: 03/12/95 | | +-----------------------------+ | |PERSON ORGANIZATION| | |DOUGLAS COLLINS RDO | | | | +------------------------------------------------+ | |NRC NOTIFIED BY: THOSS | | |HQ OPS OFFICER: TIM McGINTY | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NINF INFORMATION ONLY | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | TWO MOISTURE DENSITY GAUGES STOLEN FROM THE BACK OF A ROOFING COMPANY | | TRUCK. | | | | MR. THOSS, OF THE FLORIDA OFFICE OF RADIATION CONTROL, WAS NOTIFIED OF TWO | | STOLEN MOISTURE/MASS DENSITY GAUGES. THE STOLEN GAUGES WERE IN THE BACK OF | | A "ROOF LEAK DETECTION" COMPANY TRUCK, LOCATED IN WEST PALM BEACH, FL. ROOF | | LEAK DETECTION IS LOCATED AT 1125 11th WAY, WEST PALM BEACH, FL, 33407. | | | | THE COMPANY OWNER REPORTED TO MR. THOSS AT NOON TODAY (3/12/95) THAT THE | | TWO GAUGES WERE STOLEN (ALONG WITH SOME OTHER ROOFING MATERIALS) BETWEEN | | THE HOURS OF 2000 AND 2400 ON 3/11/95. THE TRUCK WAS PARKED AT THE | | RESIDENCE OF THE COMPANY OWNER. THE LICENSEE HAD STOPPED BY HIS HOME AFTER | | WORKING THAT DAY, AND WAS PLANNING ON RETURNING TO THE PLACE OF BUSINESS TO | | PLACE THE GAUGES IN STORAGE. THE GAUGES WERE REMOVED FROM THEIR CASES, AND | | THE CASES WERE LEFT IN THE TRUCK. THE LOCAL POLICE DEPARTMENT HAS BEEN | | NOTIFIED OF THE THEFT. MR. THOSS DID NOT HAVE THE LICENSE NUMBER, NOR | | SPECIFIC INFORMATION REGARDING THE MAKE AND MODEL OF THE GAUGES OR THE | | SOURCES. | | | | MR. THOSS HAS NOTIFIED THE FLORIDA DIVISION OF EMERGENCY MANAGEMENT, AND | | MANAGEMENT WITHIN THE FLORIDA OFFICE OF RADIATION CONTROL. THE STATE WILL | | CONTINUE WITH A MORE THOROUGH INVESTIGATION TOMORROW. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28517 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: MAINE YANKEE REGION: 1 |NOTIFICATION DATE: 03/12/95 | |UNIT: [1] [ ] [ ] STATE: ME |NOTIFICATION TIME: 16:34 [ET]| |RX TYPE: [1] CE |EVENT DATE: 03/12/95 | +------------------------------------------------+EVENT TIME: 15:00[EST]| |NRC NOTIFIED BY: MCDOUGOLD |LAST UPDATE DATE: 03/12/95 | |HQ OPS OFFICER: TIM McGINTY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JAMES JOYNER 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 | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | STEAM GENERATOR #3 EDDY CURRENT TESTING FOUND ONE TUBE WITH A | | CIRCUMFERENTIAL CRACK THAT HAS AN AVERAGE THROUGH WALL >79%. | | | | MAINE YANKEE HAS FOUND A SECOND TUBE WITH A CIRCUMFERENTIAL CRACK (360 | | DEGREES) THAT EXCEEDS 79% THROUGH WALL. THIS TUBE IS IN STEAM GENERATOR | | #3, AND IS LOCATED IN THE SAME AREA (Thot, EXPANSION TUBESHEET ZONE) AS THE | | ONE PREVIOUSLY REPORTED ON 3/4/95 IN STEAM GENERATOR #2. | | | | THIS TUBES CIRCUMFERENTIAL CRACK HAS AN AVERAGE THROUGH WALL OF 81%. THIS | | EVENT WAS REPORTED UNDER AN AGREEMENT WITH THE NRC, PREVIOUSLY SPECIFIED IN | | SIMILAR EVENT REPORT #28242. THE LICENSEE HAS INFORMED THE RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 28518 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: WATERFORD REGION: 4 |NOTIFICATION DATE: 03/13/95 | |UNIT: [3] [ ] [ ] STATE: LA |NOTIFICATION TIME: 01:55 [ET]| |RX TYPE: [3] CE |EVENT DATE: 03/12/95 | +------------------------------------------------+EVENT TIME: 23:55[CST]| |NRC NOTIFIED BY: CASSIDY |LAST UPDATE DATE: 03/13/95 | |HQ OPS OFFICER: DOUG WEAVER +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: UNUSUAL EVENT +-----------------------------+ |10 CFR SECTION: |CHRIS VANDENBURGH RDO | |AAEC 50.72(a)(1)(i) EMERGENCY DECLARED |MARTIN VIRGILIO EO | | |STINEDURF FEMA | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 3 | N Y 100 POWER OPERATION | 100 POWER OPERATION | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | UNUSUAL EVENT DECLARED BASED ON A TOXIC GAS RELEASE | | | | THE LICENSEE DECLARED AN UNUSUAL EVENT AFTER AN EXPLOSION AND TOXIC GAS | | RELEASE OCCURRED AT THE NEIGHBORING UNION CARBIDE PLANT. WATERFORD | | RECEIVED INFORMATION FROM THE ST. CHARLES PARISH EMERGENCY OPERATIONS | | CENTER (EOC) INDICATING THAT A SMALL RELEASE OF VINYL CYCLO HEXENE MONOXIDE | | (VCM) HAD OCCURRED AND THAT THE RELEASE HAD BEEN TERMINATED. | | | | THE LICENSEE DECLARED AN UNUSUAL EVENT AS A PRECAUTIONARY MEASURE. THE | | CONTROL ROOM VENTILATION SYSTEM WAS PLACED IN THE EMERGENCY MODE. NO ILL | | HEALTH EFFECTS HAVE BEEN OBSERVED ON SITE. THE UNION CARBIDE PLANT IS | | ABOUT 1 MILE FROM WATERFORD 3. AT THE TIME OF THE RELEASE, THE WIND SPEED | | WAS 15 MPH FROM THE UNION CARBIDE PLANT TOWARDS WATERFORD 3. WATERFORD's | | CONTINGENCY PLANS STATE THAT VCM IS A "SMALL" HAZARD. | | | | THE LICENSEE INTENDS TO TERMINATE THE UE WHEN THE THREAT OF FURTHER | | RELEASES HAS SUBSIDED. THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | | | | * * * UPDATE AT 0330 3/13/95 BY WEMETT TAKEN BY WEAVER * * * | | THE UNUSUAL EVENT WAS TERMINATED AT 0218 CST WHEN THE EVENT AT THE UNION | | CARBIDE PLANT WAS DETERMINED TO BE NO LONGER OF CONCERN. THE HOO NOTIFIED | | THE RDO (VANDENBURGH); EO (VIRGILIO); FEMA (EARL). | +------------------------------------------------------------------------------+