U.S. Nuclear Regulatory Commission Operations Center Event Reports For 10/13/98 - 10/14/98 ** EVENT NUMBERS ** 34774 34856 34871 34907 34908 34909 34910 34911 !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34774 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PILGRIM REGION: 1 |NOTIFICATION DATE: 09/15/98 | |UNIT: [1] [ ] [ ] STATE: MA |NOTIFICATION TIME: 13:12 [ET]| |RX TYPE: [1] GE-3 |EVENT DATE: 09/15/98 | +------------------------------------------------+EVENT TIME: 09:30[EDT]| |NRC NOTIFIED BY: VINCENT FALLACARA |LAST UPDATE DATE: 10/13/98 | |HQ OPS OFFICER: LEIGH TROCINE +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |DAN HOLODY RDO | |AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | BLOWN CONTROL LOGIC FUSE AND INOPERABLE PRESSURE TRANSMITTER DUE TO HUMAN | | ERROR DURING HIGH PRESSURE COOLANT INJECTION (HPCI) HIGH FLOW LOGIC TESTING | | | | DURING THE PERFORMANCE OF A HPCI HIGH FLOW LOGIC TEST, A POWER SURGE CAUSED | | A FUSE IN THE CONTROL LOGIC TO BLOW AND CAUSED A PRESSURE TRANSMITTING | | SWITCH TO BECOME INOPERABLE. THE POWER SURGE IS CURRENTLY BELIEVED TO HAVE | | BEEN CAUSED BY HUMAN ERROR, BUT THIS IS STILL UNDER INVESTIGATION. | | | | THE HPCI SYSTEM WAS TAKEN OUT OF SERVICE FOR PERFORMANCE OF THIS | | SURVEILLANCE TEST. AS A RESULT OF THIS INCIDENT, THE UNIT WILL REMAIN IN | | THE APPLICABLE 14-DAY LIMITING CONDITION FOR OPERATION UNTIL THE HPCI | | SYSTEM HAS BEEN RETURNED TO SERVICE. ALL OTHER EMERGENCY CORE COOLING | | SYSTEMS ARE OPERABLE AND AVAILABLE IF NEEDED. | | | | THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. | | | | **RETRACTION ON 10/13/98 AT 1313 EDT FROM G FIELDER TAKEN BY MACKINNON** | | | | THE ABOVE EVENT REPORT DOES NOT REPRESENT A REPORTABLE CONDITION BECAUSE | | THE HPCI SYSTEM WAS INOPERABLE FOR PLANNED SURVEILLANCE, 8.M.2-2.5.1. WHEN | | THE PROBLEM OCCURRED (TECHNICAL TEST EQUIPMENT USE), NO PROBLEM AFFECTING | | OPERABILITY EXISTED PRIOR TO THE SURVEILLANCE. THE SYSTEM WAS RETURNED TO | | SERVICE WITHIN THE TECHNICAL SPECIFICATION REQUIRED TIME FRAME. R1DO (CURT | | COWGILL)) NOTIFIED. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED OF THE RETRACTION BY THE LICENSEE | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34856 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: THREE MILE ISLAND REGION: 1 |NOTIFICATION DATE: 09/30/98 | |UNIT: [1] [ ] [ ] STATE: PA |NOTIFICATION TIME: 14:09 [ET]| |RX TYPE: [1] B&W-L-LP,[2] B&W-L-LP |EVENT DATE: 09/30/98 | +------------------------------------------------+EVENT TIME: 13:20[EDT]| |NRC NOTIFIED BY: JOHN SCHORK |LAST UPDATE DATE: 10/13/98 | |HQ OPS OFFICER: BOB STRANSKY +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |JOHN CARUSO RDO | |AOUT 50.72(b)(1)(ii)(B) OUTSIDE DESIGN BASIS | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | IMPROPERLY INSTALLED THERMOLAG FIRE BARRIER | | | | DURING THE REMOVAL OF THERMOLAG MATERIAL, A FIRE RESISTANT MATERIAL THAT | | WAS INSTALLED IN 1987 TO MEET THE REQUIREMENTS OF 10 CFR PART 50, APPENDIX | | R, WORKERS OBSERVED THAT SEVERAL PORTIONS OF FIRE BARRIER "1 FHC-FB-06" | | LOCATED IN FIRE ZONE FH-FZ-1 IN THE 281' ELEVATION OF THE TMI-1 FUEL | | HANDLING BUILDING DID NOT HAVE REQUIRED FILLET OF TROWEL GRADE MATERIAL | | 330-1. THE THERMOLAG WAS BEING INSPECTED IN PREPARATION FOR ITS REPLACEMENT | | WITH MECATISS. | | | | THE CONTROL ROOM WAS NOTIFIED AND A FIRE WATCH WAS POSTED IN ACCORDANCE | | WITH THE SITE FIRE PROTECTION PROGRAM PROCEDURE. REPAIRS WERE MADE TO THE | | NONCONFORMING SEAMS. AT 1320, THE PLANT REVIEW GROUP CONCLUDED A REVIEW OF | | THE NONCONFORMING CONDITION AND DETERMINED THAT THE CONDITION WAS | | IMMEDIATELY REPORTABLE TO THE NRC IN ACCORDANCE WITH 10CFR50.72(b)(1)(ii) | | AS A CONDITION OUTSIDE OF THE DESIGN BASIS OF THE PLANT AND AS A SUPPLEMENT | | TO EARLIER SIMILAR NOTIFICATIONS. THE CONDITION WAS DETERMINED TO BE | | REPORTABLE BECAUSE THE FIRE BARRIER DID NOT CONFORM TO ITS DESIGN BASIS AND | | THERE WAS REASONABLE JUSTIFICATION THAT THE NONCONFORMING CONDITION WAS NOT | | THE RESULT OF AGE-RELATED DEGRADATION BUT RATHER AN INCORRECT INSTALLATION. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN INFORMED OF THIS EVENT BY THE LICENSEE. | | | | * * * UPDATE ON 10/01/98 AT 1512 ET BY JOHN SCHORK TAKEN BY MACKINNON* * * | | | | DURING THE REMOVAL OF THERMOLAG MATERIAL, A FIRE RESISTANT MATERIAL THAT | | WAS INSTALLED IN 1987 AT THREE MILE ISLAND TO MEET THE REQUIREMENT OF | | APPENDIX "R" TO 10 CFR 50, WORKERS OBSERVED THAT SEVERAL PORTIONS OF FIRE | | BARRIER IAXC-FB-05 LOCATED IN FIRE ZONE AB-FZ-04 IN THE THREE MILE ISLAND | | UNIT 1 AUXILIARY BUILDING DID NOT HAVE A REQUIRED FILLET OF TROWEL GRADE | | MATERIAL 330-1. THE THERMOLAG WAS BEING INSPECTED IN PREPARATION TO | | REPLACE IT WITH MECATISS. SPECIFICALLY, VISUAL OBSERVATION DETERMINED THAT | | TROWEL GRADE MIX WAS NOT APPLIED TO TWO (2) SEAMS WHERE THERMOLAG | | INSULATION ABUTS THE REACTOR BUILDING EXTERIOR WALL AND ONE (1) SEAM WHERE | | THERMOLAG INSULATION ABUTS AGAINST A REACTOR BUILDING PENETRATION THERMOLAG | | INSULATION BOX AT THE TIME OF INSTALLATION OF THE THERMOLAG IN 1987. IN | | ADDITION, THERMOLAG INSTALLED AROUND A UNISTRUT WAS OBSERVED TO CONTAIN | | KAOWOOL FILLER MATERIAL AND DID NOT HAVE TROWEL GRADE MIX APPLIED TO THE | | END SEAM. | | | | THE CONTROL ROOM WAS NOTIFIED AND A FIRE WATCH WAS POSTED IN ACCORDANCE | | WITH THREE MILE ISLAND ADMINISTRATIVE PROCEDURE 1038, THE SITE FIRE | | PROTECTION PROGRAM PROCEDURE. REPAIRS ARE BEING MADE TO THE NON-CONFORMING | | SEAMS. | | | | AT 1450 HOURS, THE THREE MILE ISLAND PLANT REVIEW GROUP CONCLUDED A REVIEW | | OF THE NON-CONFORMING CONDITION AND DETERMINED THAT THE CONDITION WAS | | IMMEDIATELY REPORTABLE TO THE NRC IN ACCORDANCE WITH 10 CFR | | 50.72(b)(1)(ii)(B) AS A CONDITION OUTSIDE THE DESIGN BASIS OF THE PLANT AND | | AS A SUPPLEMENT TO EARLIER SIMILAR NOTIFICATIONS IN EVENT REPORTS 34682, | | AUGUST 25, 1998; 34769, SEPTEMBER 14, 1998 AND 34853, SEPTEMBER 29, 1998. | | THE CONDITION WAS DETERMINED TO BE REPORTABLE BECAUSE THE FIRE BARRIER DID | | NOT CONFORM TO ITS DESIGN BASIS AND THERE WAS REASONABLE JUSTIFICATION THAT | | THE NON-CONFORMING CONDITION WAS NOT THE RESULT OF AGE-RELATED DEGRADATION | | BUT RATHER AN INCORRECT INSTALLATION. | | | | ALL OF THE EARLIER EVENT REPORTS REFERENCED ABOVE AND THIS EVENT ARE | | RELATED IN THAT THEY HAVE THE SAME GENERAL CAUSE, INADEQUATE INSTALLATION, | | AND THE SAME GENERAL CONSEQUENCES, A FIRE BARRIER BEING OUTSIDE ITS DESIGN | | BASIS. THEREFORE, IN ACCORDANCE WITH THE GUIDANCE PROVIDED IN NUREG 1022 | | REV 1, EVENTS 34769, 34853 AND THIS REPORT WILL BE REPORTED IN A SUPPLEMENT | | TO LER 98-011, THAT REPORTED EVENT 34682. IN ADDITION, THERE IS SOME | | POSSIBILITY THAT ADDITIONAL SIMILAR CONDITIONS MAY BE DISCOVERED DURING THE | | COMPLETION OF THE PROJECT IN WHICH THERMOLAG IS BEING REPLACED WITH | | MECATISS. SUBSEQUENT SIMILAR EVENTS WILL BE REPORTED TO THE NRC VIA THE ENS | | SYSTEM AND BE REPORTED IN THE SUPPLEMENT TO LER 98-011 AND AS SUPPLEMENTAL | | IMMEDIATE REPORTS IN THIS EVENT REPORT 34856. THE SUPPLEMENT WILL BE ISSUED | | WHEN THE MECATISS INSTALLATION HAS BEEN COMPLETED (APPROXIMATELY MARCH 31, | | 1999). R1DO (JOHN CARUSO) NOTIFIED. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED OF THIS UPDATE BY THE LICENSEE. | | | | * * * UPDATE 1452EDT ON 10/7/98 FROM JOHN SCHORK TO S.SANDIN * * * | | | | At 1452 hours on October 7, 1998, J. Schork, TMI PRG Chairman informed Mr. | | Steve Sandin of the NRC Operations Center by telephone that the existence | | of a condition outside the design basis of the TMI-1 plant had been | | determined by the TMI Plant Review Group at 1423 hours of October 7, 1998. | | This report is being made as a supplement to Event Report 34856 made on | | September 30, 1998. | | | | During the inspection of Thermolag material, a fire resistant material that | | was installed in 1987 at TMI to meet the requirements of Appendix R to 10 | | CFR 50, workers observed that a portion of fire barrier ICCD-FB08 located | | in fire zone CB-FA-1 in the TMI-1 Control Building had an area, size | | approximately 3.5" long and 2" wide, on the radial bend armor cable circuit | | ED 5033 A where Thermolag was missing. This non-conforming condition | | appears to be an original construction deficiency. | | | | The control room was notified and the deficiency was documented in the site | | corrective action program (CAP T1998-0867). An hourly fire watch was | | instituted in accordance with the site fire protection program procedure. | | Repairs are being made to the non-conforming seams. | | | | At 1423 hours, the TMI Plant Review Group concluded a review of the | | non-conforming condition and determined that the condition was immediately | | reportable to the NRC in accordance with 10 CFR 50.72(b)(l)(ii) as a | | condition outside the design basis of the plant and as a supplement to | | earlier similar notifications in event reports 34682, August 25, 1998, | | 34769, September 14, 1998 and 34853, September 29, 1998, 34856, September | | 30, 1998. The condition was determined to be reportable because the fire | | barrier did not conform to its design basis and there was reasonable | | justification that the non--conforming condition was not the result of | | age-related degradation but rather an incorrect installation. | | | | All of the earlier event reports referenced above and this event are | | related in that they have the same general cause, inadequate installation, | | and the same general consequences, a fire barrier being outside its design | | basis. Therefore, in accordance with the guidance provided in NUREG 1022, | | Rev. 1, events 34769,34853, 34856 and this report will be reported in a | | supplement to LER 98-011, that reported event 34682. In addition, there is | | some possibility that additional similar conditions may be discovered | | during the completion of the project in which Thermolag is being replaced | | with Mecatiss. Subsequent similar events will be reported to the NRC via | | the ENS system and be reported in the supplement to LER 98-011 and as | | supplemental immediate reports to Event Report 34856. The supplement will | | be issued when the Mecatiss installation has been completed (approximately | | March 31, 1999). | | | | The licensee informed the NRC resident inspector. | | | | * * *UPDATE ON 10/12/98 AT 1109 EDT BY RANDY CAMPBELL TO FANGIE JONES* * * | | | | THE UPDATE WAS DETERMINED TO BE REPORTABLE AT 1100EDT ON 10/12/98. | | | | | | DURING THE INSPECTION OF THERMOLAG MATERIAL, A FIRE RESISTANT MATERIAL THAT | | WAS INSTALLED IN 1987 AT TMI TO MEET THE REQUIREMENTS OF APPENDIX "R" OF 10 | | CFR50, WORKERS OBSERVED A BREACH IN THERMOLAG PROTECTING HANGER "B" FOR | | 1FHC-FB06 ELEMENT 452 LOCATED IN FIRE ZONE FH-FZ1, 281' FHB 281'ELEVATION | | SOUTH END OF NEUTRALIZER TANK ROOM OVER HIGH RAD STORAGE AREA. THE WEST | | SIDE OF THE UNISTRUT WAS NOT PROPERLY CONSTRUCTED IN ACCORDANCE WITH | | THERMOLAG DESIGN CRITERIA IN THAT TWO OPENINGS EXISTED INTO THE UNISTRUT | | (ONE ABOUT 1" x 0.125" AND THE SECOND ABOUT 0.25" x 0.125") WHERE TROWEL | | GRADE MATERIAL WAS NOT PROPERLY INSTALLED BETWEEN THE PIECES. THE OUTER | | SEAM WAS ALSO NOT COVERED WITH THERMOLAG TROWEL MIX FOR APPROXIMATELY 4" | | ALONG THESE JOINTS. THE CONTROL ROOM WAS NOTIFIED AND THE DEFICIENCY WAS | | DOCUMENTED IN THE SITE CORRECTIVE ACTION PROGRAM (CAP T1998-0877) | | | | REPAIRS WERE MADE WITH TROWEL GRADE MATERIAL IN ACCORDANCE WITH 1440-Y-14 | | TO PLACE THE BARRIERS BACK INTO ITS DESIGN CONFIGURATION. INSPECTION WILL | | BE PERFORMED IN 24 HOURS TO CONFIRM THE SEAMS HAVE BEEN RESTORED TO THEIR | | DESIGN BASIS CONFIGURATION. A CAMERA IS PRESENTLY IN PLACE PROVIDING ONE | | HOUR FIRE WATCH COVERAGE WHICH WILL PROVIDE THE REQUIRED COMPENSATORY | | MEASURE IN ACCORDANCE WITH AP 1038 EXHIBIT 2 SECTION 7.3.2. THIS | | NON-CONFORMING CONDITION APPEARS TO BE AN ORIGINAL CONSTRUCTION DEFICIENCY. | | | | THERE IS SOME POSSIBILITY THAT ADDITIONAL SIMILAR CONDITIONS MAY BE | | DISCOVERED DURING THE COMPLETION OF THE PROJECT IN WHICH THERMOLAG IS BEING | | REPLACED WITH MECATISS. SUBSEQUENT SIMILAR EVENTS WILL BE REPORTED TO THE | | NRC VIA THE ENS SYSTEM AND IN THE SUPPLEMENT TO LER 98-011 AND AS | | SUPPLEMENTAL IMMEDIATE REPORTS TO EVENT REPORT NUMBER (34856). THE | | SUPPLEMENT WILL BE ISSUED WHEN THE MECATISS INSTALLATION HAS BEEN COMPLETED | | (APPROXIMATELY 03/31/99). R1DO (JIM LINVILLE) NOTIFIED. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED BY THE LICENSEE OF THIS UPDATE. | | | | **UPDATE ON 10/13/98 AT 1332 EDT FROM R CAMPBELL TAKEN BY MACKINNON** | | | | CB-FA-1 FIRE BARRIERS (308' CONTROL BUILDING - RAD CON/CHEMISTRY AREAS) | | WERE FOUND WITH DEGRADED CONDITIONS FOR THE FOLLOWING: | | | | 1CCD-FB08 CONDUIT TO SUPPORT SEAM WAS FOUND TO BE MISSING ABOUT 0.25" BY 3" | | OF TROWEL GRADE THERMOLAG. THIS APPEARS TO BE ORIGINAL CONSTRUCTION NOT | | BUILT ACCORDING TO SPECIFICATIONS. | | 1CCD-FB10 CONDUIT TO SUPPORT 0.5" BY 0.125" AND CONDUIT TO CONDUIT 0.5" BY | | 0.125" TOP AREAS MISSING TROWEL GRADE THERMOLAG APPEARS TO BE ORIGINAL | | CONSTRUCTION NOT BUILT ACCORDING TO SPECIFICATIONS. | | 1CCD-FB11 CONDUIT TO CONDULET TOP SEAM WAS MISSING ABOUT 0.375" BY 2" OF | | TROWEL GRADE THERMOLAG. THIS APPEARS TO BE ORIGINAL CONSTRUCTION NOT BUILT | | ACCORDING TO SPECIFICATION. | | 1CCD-FB12 CONDUIT TO COUPLING SEAM WAS MISSING 0.25" BY 2" TROWEL GRADE | | THERMOLAG. THIS APPEARS TO BE ORIGINAL CONSTRUCTION NOT BUILT ACCORDING TO | | SPECIFICATIONS. AN AREA NEAR THE NORTH WALL PENETRATION 0.125" BY 0.75" WAS | | DEGRADED (NOT AN ORIGINAL CONSTRUCTION DISCREPANCY). | | 1CCD-FB14 HAS A HOLE ABOUT 0.375" BY 1" HOLE TO THE ARMOR CABLE, AND A | | FACIAL CRACK AT A CONDUIT SEAM. THIS APPEARS TO BE DEGRADED OVER TIME (NOT | | A CONSTRUCTION DISCREPANCY). | | 1CCD-FB19 HAS A DEGRADED AREA AT A VERTICAL TO HORIZONTAL JOINT THAT | | APPEARS TO BE DEGRADED OVER TIME (NOT A CONSTRUCTION DISCREPANCY). | | 1CCD-FB20 MULTIPLE BREACHES ON ELBOW NORTH END THAT APPEARS TO BE ORIGINAL | | CONSTRUCTION NOT BUILT ACCORDING TO SPECIFICATIONS. SUPPORT 1CCD-C101 HAS | | 4" BY 0.125" SEAM AND 2" BY 0.125" AT THE INNER SECTION OF 1CCD-FB20 | | MISSING TROWEL GRADE THERMOLAG. THESE APPEAR TO BE ORIGINAL CONSTRUCTION | | NOT BUILT ACCORDING TO SPECIFICATIONS. | | SOME OTHER COSMETIC REPAIRS WERE MADE WHERE MINOR CRACKS WERE OBSERVED THAT | | DID NOT GO THROUGH THE THICKNESS OF THE THERMOLAG ON VARIOUS FIRE BARRIERS | | IN THIS AREA. | | IAW AP 1038 EXHIBIT 2 SECTION 7.3.2 THIS BREACH REQUIRES COMPENSATORY | | ACTIONS INCLUDING THE START OF A 14 DAY CLOCK, ONE HOUR FIRE WATCH | | PRESENTLY BEING PERFORMED BY RAD CON BECAUSE OF DEGRADED TSI AND OTHER | | COMBUSTIBLES IN THE AREA. THIS AREA IS PROTECTED BY A SUPPRESSION SYSTEM. | | R1DO (CURT COWGILL) NOTIFIED. | | | | THE NRC RESIDENT INSPECTOR HAS BEEN NOTIFIED OF THIS UPDATE BY THE | | LICENSEE. | +------------------------------------------------------------------------------+ !!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!! +----------------------------------+ +-----------------------+ |FUEL CYCLE FACILITY | |EVENT NUMBER: 34871 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 10/04/98 | | RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 00:06 [ET]| |COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 10/03/98 | | 6903 ROCKLEDGE DRIVE |EVENT TIME: 17:15[CDT]| | BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 10/13/98 | | CITY: PADUCAH REGION: 3 +-----------------------------+ | COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION| |LICENSE#: GDP-1 AGREEMENT: Y |GARY SHEAR RDO | | DOCKET: 0707001 |ROBERT PIERSON, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: J. M. (MIKE) UNDERWOOD | | |HQ OPS OFFICER: LEIGH TROCINE | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |NCFR NON CFR REPORT REQMNT | | |NLTR LICENSEE 24 HR REPORT | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | SAFETY SYSTEM (WATER INVENTORY CONTROL SYSTEM) ACTIVATION ON A SAMPLING | | AUTOCLAVE DUE TO A VALID SIGNAL | | | | AT 1715 CDT ON 10/03/98, A WATER INVENTORY CONTROL SYSTEM ACTIVATION | | OCCURRED ON THE C-360 POSITION-1 AUTOCLAVE DURING A CYLINDER HEAT CYCLE | | WHEN HIGH LEVEL DRAIN SECONDARY AND PRIMARY ALARMS WERE RECEIVED. (THE | | PRIMARY ALARM WAS RECEIVED 10 MINUTES AFTER THE SECONDARY ALARM, AND THE | | DRAIN INVOLVED COLLECTED CONDENSATE FROM THE STEAM HEATING SYSTEM.) THE | | HIGH LEVEL DRAIN ALARMS PLACED THE AUTOCLAVE IN CONTAINMENT BY ISOLATING | | THE STEAM SUPPLY AND CLOSING A THERMAL VENT VALVE. THE SAFETY SYSTEM | | ACTUATED AS REQUIRED TO PREVENT CRITICALITY CONCERNS REGARDING TOO MUCH | | WATER IN THE AUTOCLAVE IN THE EVENT OF A RELEASE. THE CAUSE OF THE ALARMS | | AND SAFETY SYSTEM ACTIVATION IS BEING INVESTIGATED. | | | | THIS EVENT IS REPORTABLE TO THE NRC AS A 24-HOUR EVENT NOTIFICATION IN | | ACCORDANCE WITH SAFETY ANALYSIS REPORT, SECTION 6.9, TABLE 1, CRITERION | | J.2, SAFETY SYSTEM ACTUATION DUE TO A VALID SIGNAL. | | | | PADUCAH PERSONNEL NOTIFIED THE NRC RESIDENT INSPECTOR. | | | | **RETRACTION ON 10/13/98 AT 1305 EDT BY K. A. BEASLEY TAKEN BY MACKINNON** | | | | BASED ON AVAILABLE DATA AND THE SEQUENCE OF EVENTS, THE C-360 SYSTEM | | ENGINEER HAS CONCLUDED THAT THE WATER INVENTORY CONTROL SYSTEM (WICS) | | ACTUATION WAS INITIATED BY AN INVALID SIGNAL, i.e., NOT A SAFETY SYSTEM | | SIGNAL. THE ACTUATION OCCURRED ABOUT ONE HOUR INTO THE CYCLE WHEN | | STEAM/CONDENSATE FLOW HAD DIMINISHED TO ABOUT ONE-THIRD OF THE INITIAL FLOW | | RATE. A HIGH CONDENSATE LEVEL WOULD NOT BE EXPECTED AT THIS TIME. | | ADDITIONALLY, NO STRAINER BASKET BLOCKAGE WAS FOUND. ONLY ONE WICS CHANNEL | | WAS INITIALLY ACTIVATED. BOTH WICS CHANNELS ACTIVATED ABOUT NINE HOURS | | LATER WITH THE AUTOCLAVE OPEN AND NO WATER PRESENT. SEVERAL WEEKS | | PRECEDING THIS EVENT, SEVERAL SPURIOUS WICS ALARMS, ON THE SECONDARY | | CHANNEL HAD BEEN EXPERIENCED WHILE NOT IN THE HEATING MODE WHICH IS | | INDICATIVE OF INTERMITTENT ELECTRICAL PROBLEMS CAUSING SPURIOUS ALARMS. | | THUS, THE OTHER NON-CFR REPORTING CRITERIA OF PLANT PROCEDURE UE2-RA-RE1030 | | IS NOT MET. R3DO (BRUCE JORGENSEN) AND NMSS EO (JOSIE PICCONE) NOTIFIED. | | | | THIS RETRACTION OF THE REPORT HAS BEEN DISCUSSED WITH THE NRC RESIDENT | | INSPECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34907 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: ROBINSON REGION: 2 |NOTIFICATION DATE: 10/13/98 | |UNIT: [2] [ ] [ ] STATE: SC |NOTIFICATION TIME: 09:12 [ET]| |RX TYPE: [2] W-3-LP |EVENT DATE: 10/13/98 | +------------------------------------------------+EVENT TIME: 08:17[EDT]| |NRC NOTIFIED BY: HAROLD CHERNOFF |LAST UPDATE DATE: 10/13/98 | |HQ OPS OFFICER: FANGIE JONES +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |CHRIS CHRISTENSEN RDO | |DDDD 73.71 UNSPECIFIED PARAGRAPH | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | PLANT SECURITY EVENT | | | | SAFEGUARD SYSTEM DEGRADATION RELATED TO DETECTION/POWER SUPPLY FUNCTIONS. | | IMMEDIATE COMPENSATORY MEASURES TAKEN UPON DISCOVERY. THE LICENSEE | | INFORMED THE NRC RESIDENT INSPECTOR. | | | | REFER TO THE HOO LOG FOR ADDITIONAL DETAILS. | | | | ***UPDATE ON 10/13/98 AT 1624 EDT FROM CHERNOFF TAKEN BY MACKINNON*** | | | | THREE AREAS FOUND THAT DID NOT HAVE PROPER PROTECTED AREA/VITAL AREA | | DEFENSES. IMMEDIATE COMPENSATORY MEASURES TAKEN UPON DISCOVERY. THE | | LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. R2DO (MARK LESSER) NOTIFIED. | | | | REFER TO THE HOO LOG FOR ADDITIONAL DETAILS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 34908 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: US ARMY (ACALA) |NOTIFICATION DATE: 10/13/98 | | CITY: FORT IRWIN REGION: 4 |NOTIFICATION TIME: 17:19 [ET]| | COUNTY: SAN BERNARDINO STATE: CA |EVENT DATE: 10/06/98 | |LICENSE#: 12-00722-06 AGREEMENT: Y |EVENT TIME: 00:00[PDT]| | DOCKET: |LAST UPDATE DATE: 10/13/98 | | +-----------------------------+ | |PERSON ORGANIZATION| | |BRUCE JORGENSEN RDO | | |MIKE WEBER, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: HAVENNER | | |HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |BAB1 20.2201(a)(1)(i) LOST/STOLEN LNM>1000X | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | CHEMICAL AGENT DETECTOR FOUND MISSING DURING MILITARY MANEUVERS | | | | A M43A1 CHEMICAL AGENT DETECTOR CONTAINING 250 MICROCURIES OF AMERICIUM-241 | | WAS REPORTED MISSING DURING MANEUVERS AT THE UNITED STATES ARMY TRAINING | | CENTER LOCATED AT FORT IRWIN, CA. THE UNITED STATES ARMY IS LOOKING FOR | | THE MISSING CHEMICAL AGENT DETECTOR. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34909 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: DIABLO CANYON REGION: 4 |NOTIFICATION DATE: 10/13/98 | |UNIT: [1] [2] [ ] STATE: CA |NOTIFICATION TIME: 18:50 [ET]| |RX TYPE: [1] W-4-LP,[2] W-4-LP |EVENT DATE: 10/13/98 | +------------------------------------------------+EVENT TIME: 13:08[PDT]| |NRC NOTIFIED BY: D PIERCE |LAST UPDATE DATE: 10/13/98 | |HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BILL JONES RDO | |APRE 50.72(b)(2)(vi) OFFSITE NOTIFICATION | | | | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |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 +------------------------------------------------------------------------------+ | THE LICENSEE NOTIFIED CALIFORNIA DEPARTMENT OF FORESTRY THAT ASSISTANCE WAS | | NEEDED TO EXTINGUISH A WILD LAND FIRE ON OWNER CONTROLLED AREA. | | | | AT 1311 PDT, DIABLO CANYON POWER PLANT REQUESTED ASSISTANCE FROM THE | | CALIFORNIA DEPARTMENT OF FORESTRY DUE TO A WILD LAND FIRE NEAR THE DIABLO | | CANYON POWER PLANT ACCESS ROAD (OWNER CONTROLLED PROPERTY). CALIFORNIA | | DEPARTMENT OF FORESTRY RESPONDED WITH GROUND CREWS AND ENGINE CREWS WHICH | | RESULTED IN THE FIRE BEING CONTAINED BY 1345 PDT. | | | | THE FIRE OCCURRED AT APPROXIMATELY THE 3 MILE MARKER ON THE ACCESS ROAD | | (APPROXIMATELY 4 MILES FROM THE PLANT SITE) AND BURNED APPROXIMATELY 3 | | ACRES. THE CAUSE OF THE FIRE HAS BEEN DETERMINED TO BE THE RESULT OF | | BURNING FERTILIZER BAGS BY LOCAL FARM WORKERS. | | | | TRAFFIC WAS MINIMIZED ON THE ACCESS ROAD DUE TO SAFETY CONCERNS, HOWEVER, | | THE ROAD WAS CAPABLE OF BEING USED FOR PLANT EMERGENCY RESPONSE AT ALL | | TIMES. | | | | THE NRC RESIDENT INSPECTOR WAS NOTIFIED OF THIS EVENT BY THE LICENSEE. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |OTHER NUCLEAR MATERIAL | |EVENT NUMBER: 34910 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |LICENSEE: AMERICAN ENG. TESTING, INC., MN |NOTIFICATION DATE: 10/13/98 | | CITY: ST PAUL REGION: 3 |NOTIFICATION TIME: 22:25 [ET]| | COUNTY: WASHINGTON STATE: MN |EVENT DATE: 10/13/98 | |LICENSE#: 22-20271-02 AGREEMENT: N |EVENT TIME: 13:38[CDT]| | DOCKET: |LAST UPDATE DATE: 10/13/98 | | +-----------------------------+ | |PERSON ORGANIZATION| | |BRUCE JORGENSEN RDO | | |MIKE WEBER, NMSS EO | +------------------------------------------------+ | |NRC NOTIFIED BY: MARK SANDVIG | | |HQ OPS OFFICER: JOHN MacKINNON | | +------------------------------------------------+ | |EMERGENCY CLASS: NOT APPLICABLE | | |10 CFR SECTION: | | |IBBF 30.50(b)(2)(ii) EQUIP DISABLED/FAILS | | | | | | | | | | | | | | +------------------------------------------------+-----------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | RADIOGRAPHY SOURCE WOULD NOT FULLY RETRACT DUE TO DENTED GUIDE TUBE. | | | | THE FOLLOWING INFORMATION WAS GIVEN BY THE RADIATION SAFETY OFFICER FOR | | AMERICAN ENGINEERING TESTING, INC., ST PAUL, MN. | | | | AMERICAN ENGINEERING TESTING, INC., PERSONNEL WERE AT A TEMPORARY JOB SITE | | LOCATED AT US FILTER/ZIMPRO IN WAUSAU, WI., USING AN AMERSHAM MODEL 660B | | RADIOGRAPHY CAMERA (56 CURIES IRIDIUM-192) FOR RADIOGRAPHY WORK IN THE | | LAYDOWN YARD NEXT TO THE FABRICATION SHOP. A SOURCE STAND WAS ATTACHED TO A | | COMPONENT WHICH FELL OVER AND DENTED THE CAMERA GUIDE TUBE. THE AREA AROUND | | THE RADIOGRAPHY CAMERA WAS PROPERLY SECURED AND MONITORED. THE GUIDE TUBE | | FOR THE RADIOGRAPHY CAMERA IS 7' LONG. THE LICENSEE WAS ABLE TO RETRACT | | THE SOURCE TO THE 5.8' POSITION IN THE GUIDE TUBE. THE LICENSEE ENTERED | | THEIR EMERGENCY PROCEDURES FOR A STUCK SOURCE PLACING FOUR 25 POUND LEAD | | SHOT BAGS OVER THE TIP OF THE GUIDE TUBE. THE RADIATION LEVELS AT THE | | SECTION OF THE GUIDE TUBE THAT HAD BEEN DENTED AFTER PLACEMENT OF THE LEAD | | SHOT BAGS WERE 5mR/hr. THE ASSISTANT RADIATION SAFETY OFFICER WAS ABLE BY | | MECHANICAL MEANS TO UNDENT THE GUIDE TUBE ENOUGH SO THE SOURCE COULD BE | | FULLY RETRACTED TO ITS SAFE SHIELDED POSITION. THE RADIOGRAPHY CAMERA WAS | | RETURNED TO STORAGE IN THE LICENSEE'S WAUSAU OFFICE. | | | | THE WHOLE BODY RADIATION DOSE TO THE FOUR INDIVIDUALS INVOLVED IN THIS | | EVENT WAS DETERMINED BY READING THEIR POCKET DOSIMETERS. ONE INDIVIDUAL | | RECEIVED A WHOLE BODY DOSE OF 25 mR, THE SECOND PERSON RECEIVED A WHOLE | | BODY DOSE OF 17 mR, AND THE THIRD AND FOURTH EACH RECEIVED 7 mR. THEIR FILM | | BADGES WILL BE SENT IN TO BE READ. | | | | THE LICENSEE WILL NOTIFY NRC REGION 3 OF THIS EVENT THE MORNING OF | | 10/14/98. | | | | SEE HOO LOG BOOK FOR PHONE NUMBERS. | +------------------------------------------------------------------------------+ +----------------------------------+ +-----------------------+ |POWER REACTOR | |EVENT NUMBER: 34911 | +----------------------------------+ +-----------------------+ +------------------------------------------------+-----------------------------+ |FACILITY: COOPER REGION: 4 |NOTIFICATION DATE: 10/14/98 | |UNIT: [1] [ ] [ ] STATE: NE |NOTIFICATION TIME: 00:38 [ET]| |RX TYPE: [1] GE-4 |EVENT DATE: 10/13/98 | +------------------------------------------------+EVENT TIME: 20:05[CDT]| |NRC NOTIFIED BY: CRAIG JORGENSEN |LAST UPDATE DATE: 10/14/98 | |HQ OPS OFFICER: STEVE SANDIN +-----------------------------+ +------------------------------------------------+ NOTIFICATIONS | |EMERGENCY CLASS: NOT APPLICABLE +-----------------------------+ |10 CFR SECTION: |BILL JONES RDO | |ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | | |NLCO TECH SPEC LCO A/S | | | | | | | | | | | +-----+----------+-------+--------+--------------+--+--------+-----------------+ |UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE | +-----+----------+-------+--------+-----------------+--------+-----------------+ | 1 | N N 0 REFUELING | 0 REFUELING | | | | | | | | | +-----+---------------------------------------------+--------------------------+ EVENT TEXT +------------------------------------------------------------------------------+ | BOTH TRAINS OF 125VDC AND 250VDC DECLARED INOPERABLE DUE TO INSTALLATION OF | | UNDERSIZED FUSES. | | | | "DURING DEVELOPMENT OF AN OPERABILITY EVALUATION ON THE 250VDC SWITCHGEAR | | FOR FUSES WITH AN INTERRUPTING CURRENT RATING WHICH IS LOWER THAN THE | | CALCULATED SHORT CIRCUIT CURRENT, IT WAS DISCOVERED THAT THE INTERRUPTING | | CURRENT RATING WAS ACTUALLY 10,000 AMPS VERSUS 20,000 AMPS, AND THE 125VDC | | SWITCHGEAR WAS ALSO AFFECTED. THIS DOES NOT MEET THE DCD-5 (DESIGN | | CRITERIA DOCUMENT) REQUIREMENTS FOR WITHSTANDING AND INTERRUPTING THE | | MAXIMUM CREDIBLE SHORT CIRCUIT CURRENT. DUE TO THIS NONCONFORMANCE, THE | | SWITCHGEAR (125VDC 'A'/'B', 250VDC 'A'/'B') WERE CONSERVATIVELY DECLARED | | INOPERABLE. THIS RESULTED IN ENTRY INTO LCO'S 3.8.5, 3.8.8 AND 3.9.7. THIS | | ALSO RESULTED IN DECLARING 'A' SHUTDOWN COOLING SUBSYSTEM INOPERABLE. 'B' | | RHR LOOP WAS PREVIOUSLY TAGGED OUT FOR PLANNED MAINTENANCE." | | | | THE LICENSEE IS DETERMINING APPROPRIATE CORRECTIVE ACTIONS. THE "A" | | SHUTDOWN COOLING (SDC) SYSTEM, ALTHOUGH INOPERABLE, REMAINS AVAILABLE AND | | IN SERVICE. SHOULD SDC NOT BE AVAILABLE, THE LICENSEE ESTIMATES | | APPROXIMATELY 18 HOURS TO BOILING FROM AN INITIAL TEMPERATURE OF 95øF WITH | | THE CAVITY CURRENTLY FLOODED. THIS METHOD OF DECAY HEAT REMOVAL IS | | RECOGNIZED AS AN ALTERNATE FORM OF SDC. THE UNIT WAS SHUTDOWN FOR | | REFUELING ON 10/3/98. THE UNDERSIZED FUSES HAVE BEEN INSTALLED FOR AT | | LEAST A COUPLE OF YEARS AND COULD, IN THE WORST CASE, ALLOW FOR ELECTRICAL | | ARCING UNDER HIGH INTERRUPTING CURRENT LOADS. THIS COULD RESULT IN | | ISOLATION OF THE STATION BATTERY FROM THE RESPECTIVE BUSES. THE LICENSEE | | IS EVALUATING THE REQUIREMENTS OF THE APPLICABLE TECH SPEC LCO ACTION | | STATEMENTS. | | | | THE LICENSEE INFORMED THE NRC RESIDENT INSPECTOR. | +------------------------------------------------------------------------------+