Event Notification Report for November 24, 1999
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
11/23/1999 - 11/24/1999
** EVENT NUMBERS **
35790 36342 36374 36427 36458 36459
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|Fuel Cycle Facility |Event Number: 35790 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 06/03/1999|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 14:44[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 06/02/1999|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 16:30[CDT]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 11/23/1999|
| CITY: PADUCAH REGION: 3 +-----------------------------+
| COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION |
|LICENSE#: GDP-1 AGREEMENT: Y |DAVID HILLS R3 |
| DOCKET: 0707001 |DON COOL NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: THOMAS WHITE | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBA 76.120(c)(2)(i) ACCID MT EQUIP FAILS | |
| | |
| | |
| | |
| | |
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EVENT TEXT
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| THREE SPRINKLER SYSTEMS DECLARED INOPERABLE DUE TO CORRODED HEADS (24-hour |
| report) |
| |
| "On 06/02/99 at 1630 CDT, the Plant Shift Superintendent (PSS) was notified |
| that numerous sprinkler heads were corroded, affecting 16 sprinkler systems |
| in C-337 and one system in C-333, such that the ability of the sprinklers to |
| flow sufficient water was called into question. Subsequently, these |
| sprinkler systems were declared inoperable, and TSR-required actions |
| establishing roving fire patrols were initiated. This deficiency was |
| detected during scheduled system inspections conducted by Fire Protection |
| personnel. Currently, functionality of the sprinkler heads has not been |
| fully evaluated by Fire Protection personnel, and the remaining cascade |
| buildings are currently being inspected, and if necessary, this report will |
| be updated to identify any additional areas. It has been determined that |
| this event is reportable under 10CFR76.120(c)(2) as an event in which |
| equipment is disabled or fails to function as designed." The NRC resident |
| inspector has been notified of this event. |
| |
| * * * UPDATE AT 1022 EDT ON 06/04/99 FROM CAGE TO TROCINE * * * |
| |
| "Two sprinkler heads on system D-1 in C-337 and two sprinkler heads on |
| system 27 in C-335 were identified to also be corroded. These were |
| identified to the PSS on 06/03/99 at 1600 CDT and 1601 CDT, respectively, |
| and determined to require an update to this report by the PSS. It has been |
| determined that this event is reportable under 10CFR76.120(c)(2) as an event |
| in which equipment is disabled or fails to function as designed." Paducah |
| personnel notified the NRC resident inspector of this update. The NRC |
| operations officer notified the R3DO (Hills) and NMSS EO (Combs). |
| |
| * * * UPDATE AT 2152 EDT ON 06/17/99 FROM WALKER TO POERTNER * * * |
| |
| "Three sprinkler heads on system C-15 and five sprinkler heads on system B-8 |
| in C-333 were identified to also be corroded. The PSS was notified of this |
| condition at 1300 CDT on 06/17/99 and determined that an update to this |
| report was required. It has been determined that this event is reportable |
| under 10CFR76.120(c)(2) as an event in which equipment is disabled or fails |
| to function as designed." Paducah personnel notified the NRC resident |
| inspector of this update. The NRC operations officer notified the R3DO |
| (Madera). |
| |
| * * * UPDATE 1440 EDT 6/18/1999 FROM UNDERWOOD TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on system C-15 and one sprinkler head on system B-8 in |
| C-333 were identified to have corrosion. The PSS was notified of this |
| condition at 1350 CDT on 06/18/99. The area of the fire patrol for system |
| C-15 was expanded to include the two heads identified as corroded. The one |
| head on system B-8 was in the area already being patrolled. The PSS |
| determined that an update to this report was required." The NRC resident |
| inspector has been informed of this update. Notified R3DO (Madera). |
| |
| * * * UPDATE 1315 EDT 6/25/1999 FROM WALKER TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on system D-8 and three sprinkler heads on system D-7 |
| in C-337 were identified to have corrosion. The PSS was notified of the |
| condition on system D-8 at 0125 CDT on 06/25/99 and at 1019 CDT on 06/25/99 |
| for system D-7. Both systems were immediately declared inoperable and LCO |
| fire patrol actions were implemented. It was determined that an update to |
| this report was required." The NRC resident inspector has been informed of |
| this update. Notified R3DO (Jordan). |
| |
| * * * UPDATE 2119 EDT 7/30/1999 FROM CAGE TAKEN BY STRANSKY * * * |
| |
| "Five sprinkler heads and one sprinkler piping tee on C-337 system D-7 were |
| identified to have corrosion. The PSS was notified of these corroded system |
| parts and declared the system inoperable at 0931 CDT on 07/30/99. LCO |
| required fire patrols of the affected area were initiated. The PSS |
| determined that an update to this event report was required." The NRC |
| resident inspector has been informed of this update. Notified R3DO |
| (Wright). |
| |
| * * * UPDATE AT 1655 EDT ON 07/31/99 FROM WHITE TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on C-337 System D-1 were identified to have corrosion. |
| The PSS was notified of these corroded system parts and declared the system |
| inoperable at 1155 CDT on 7/31/99. LCO required fire patrols of the |
| affected area were initiated. The PSS determined that an update to this |
| report was required." The NRC resident inspector has been informed of this |
| update. Notified R3DO (Wright). |
| |
| * * * UPDATE AT 1546 EDT ON 08/10/99 FROM WHITE TAKEN BY STRANSKY * * * |
| |
| "Two sprinkler heads on C-337 system C-15 were identified to have corrosion. |
| The PSS was notified of these corroded system parts and declared the system |
| inoperable at 1130 CDT on 8/10/99. LCO required fire patrols of the |
| affected area were initiated. The PSS determined that an update to this |
| report was required." The NRC resident inspector has been informed of this |
| update. Notified R3DO (Burgess). |
| |
| * * * UPDATE AT 1154 EDT ON 08/22/99 FROM WALKER TO POERTNER * * * |
| |
| Four adjacent sprinkler heads on the C-333 building System B-1 were |
| identified to have corrosion. The PSS was notified of the corroded system |
| parts and declared the system inoperable at 0918 CDT on 08/22/99. LCO |
| required fire patrols were initiated. The NRC Resident Inspector will be |
| notified. The NRC Operations Officer notified the R3DO (Clayton). |
| |
| * * * UPDATE 2015 EDT ON 08/28/99 FROM W. F. GAGE TO S. SANDIN * * * |
| |
| Two adjacent sprinkler heads on the C-337 building System D-11 were |
| identified to have corrosion. The PSS was notified of these corroded system |
| parts and declared the system inoperable at 1420 CDT on 08/28/99. LCO |
| required fire patrols of the affected area were initiated. Paducah |
| personnel informed the NRC Resident Inspector. The NRC Operations Officer |
| notified the R3DO (Leach) and NMSS EO (Piccone). |
| |
| * * * UPDATE 2037 EDT ON 08/29/99 FROM KEVIN BEASLEY TO S. SANDIN * * * |
| |
| Two adjacent sprinkler heads on the C-337 building System D-15 were |
| identified to have corrosion and the PSS declared the system inoperable at |
| 0925 CDT on 08/29/99. Also two adjacent heads on the C-337 building System |
| D-10 were identified to have corrosion and the PSS declared the system |
| inoperable at 1450 CDT. LCO required fire patrols for both of the affected |
| areas were initiated in the time frame required by TSR. Paducah personnel |
| informed the NRC Resident Inspector. The NRC Operations Officer notified |
| the R3DO (Leach) and NMSS EO (Piccone). |
| |
| * * * UPDATE AT 0930 EDT ON 09/01/99 BY ERIC WALKER TO FANGIE JONES * * * |
| |
| Add two adjacent sprinkler heads on the C-337 building System D-14 were |
| declared inoperable. Paducah personnel informed the NRC Resident Inspector. |
| The NRC Operations Officer notified the R3DO (David Hills) and NMSS (Robert |
| Pierson). |
| |
| * * * UPDATE AT 1133 EDT ON 09/08/99 BY TOM WHITE TO FANGIE JONES * * * |
| |
| Add two adjacent sprinkler heads on the C-331 building System 26 were |
| declared inoperable at 2155 CDT on 09/07/99. An LCO required fire patrol |
| for the affected area was initiated in the time frame required by the TSR. |
| Paducah personnel informed the NRC Resident Inspector. The NRC Operations |
| Officer notified the R3DO (Monte Phillips) and NMSS (Josie Piccone). |
| |
| * * * UPDATE AT 0948 ON 09/30/99 BY ERIC WALKER TO DOUG WEAVER * * * |
| |
| Add two adjacent sprinkler heads on the C-333 building System B-15 were |
| identified to have corrosion and the PSS declared the system inoperable at |
| 0815 CDT on 9/30/99. An LCO required fire patrol for the affected area was |
| initiated in the time frame required by the TSR. Paducah personnel informed |
| the NRC Resident Inspector. The NRC operations officer notified the R3DO |
| (Vegel) and NMSS (Cool). |
| |
| * * * UPDATE AT 1600 ON 10/13/99 BY WALKER TO GOULD * * * |
| |
| Two adjacent sprinkler heads on the C-333 building System A-11 were |
| Identified to have corrosion and the PSS declared the system inoperable at |
| 1307 CDT on 10/13/99. An LCO required fire patrol for the affected area was |
| initiated in the time frame required by the TSR. Paducah personnel informed |
| the NRC Resident Inspector. The NRC operations officer notified the R3DO |
| (Madera) and NMSS (Moore). |
| |
| * * * UPDATE AT 1520 ON 10/19/99 FROM UNDERWOOD TAKEN BY STRANSKY * * * |
| |
| Six sprinkler heads on the C-337 building System D-16 were identified to |
| have corrosion and the PSS declared the system inoperable at 1052 CDT on |
| 10/19/99. An LCO required fire patrol for the affected area was initiated |
| in the time frame required by the TSR. The NRC Resident Inspector has been |
| informed of this update. The NRC Operations Officer notified R3DO |
| (Jorgensen). |
| |
| * * * UPDATE AT 2140 ON 10/19/99 FROM WALKER TAKEN BY STRANSKY * * * |
| |
| Seven sprinkler heads on the C-337 building System A-7 were identified to |
| have corrosion, and another four had been painted over. In addition, three |
| adjacent sprinkler heads on the C-337 building System A-8 were identified to |
| have corrosion. The PSS declared the systems inoperable at 1900 CDT on |
| 10/19/99. An LCO required fire patrols for the affected areas were |
| initiated in the time frame required by the TSR. The NRC Resident Inspector |
| has been informed of this update. The NRC Operations Officer notified R3DO |
| (Wright). |
| |
| * * * UPDATE AT 1713 ON 10/21/99 FROM CAGE TAKEN BY JOLLIFFE * * * |
| |
| Four sprinkler heads on the C-337 building System A-5, twelve sprinkler |
| heads on the C-337 building System A-8, three sprinkler heads on the C-337 |
| building System A-9, and six sprinkler heads on the C-337 building System |
| B-8 were identified to have corrosion. On 10/21/99, the PSS declared |
| Systems A-5 and A-9 inoperable at 1028 CDT, System A-8 inoperable at 1227 |
| CDT and System B-8 inoperable at 1406 CDT. An LCO required fire patrol for |
| the affected areas was initiated in the time frame required by the TSR.. |
| The NRC Resident Inspector has been informed of this update. The NRC |
| Operations Officer notified the R3DO Bruce Jorgensen. |
| |
| * * * UPDATE AT 2128 ON 10/22/99 FROM ERIC WALKER TAKEN BY JOLLIFFE * * * |
| |
| At 1400 CDT on 10/22/99, the PSS was notified that numerous corroded |
| sprinkler heads were discovered in the C-337 building on sprinkler systems |
| B-1, B-3, B-5, B-6, B-7, B-11 and D-17. Due to the number of systems called |
| into question, the PSS declared all of the sprinkler systems in C-337 on the |
| cell floor (a total of 66 systems) inoperable and TSR required actions |
| establishing roving fire patrols were initiated within the required time |
| frame. The NRC Resident Inspector has been informed of this update. The |
| NRC Operations Officer notified the R3DO Bruce Jorgensen. |
| |
| * * * UPDATE AT 1239 ON 10/24/99 FROM TOM WHITE TAKEN BY JOLLIFFE * * * |
| |
| At 1200 CDT on 10/23/99, the PSS was notified that numerous corroded |
| sprinkler heads were discovered in the C-337 building on sprinkler systems |
| B-13 and B-14 on the ground floor, The PSS declared these systems |
| inoperable and TSR required actions establishing roving fire patrols were |
| initiated within the required time frame. At 1600 CDT on 10/23/99, the PSS |
| was notified that numerous corroded sprinkler heads were discovered in the |
| C-337 building on sprinkler systems A-16, B-12, C-8, C-12, C-15, D-5 and D-8 |
| on the cell floor, These systems have already been declared inoperable and |
| fire patrols are already being performed. The NRC Resident Inspector has |
| been notified of this update. The NRC Operations Officer notified the R3DO |
| Bruce Jorgensen. |
| |
| * * * UPDATE AT 1117 ON 10/25/99 FROM W. F. CAGE TAKEN BY SANDIN * * * |
| |
| At 1940 CDT on 10/24/99, the PSS was notified that numerous corroded |
| sprinkler heads had been discovered on High Pressure Fire Water Systems C-4, |
| C-5, C-6 and C-8, located in the C-337 building. These systems had |
| previously been declared inoperable and fire patrols were already being |
| performed at the time of discovery. The NRC Resident Inspector has been |
| notified of this update. The NRC Operations Officer notified R3DO |
| (Lanksbury) and NMSS (Brain Smith). |
| |
| * * * UPDATE AT 2235 ON 10/27/99 BY WHITE TAKEN BY MACKINNON * * * |
| |
| At 1517 CDT on 10/27/99, the PSS was notified that nine corroded sprinkler |
| heads had been discovered on High Pressure Fire Water System A-12 located in |
| the C-333 building. This system has been declared inoperable and fire |
| patrols have been initiated. The NRC Resident Inspector has been notified |
| of this update. The NRC Operations Officer notified R3DO (Jordan) and NMSS |
| EO (Hickey). |
| |
| * * * UPDATE AT 2150 ON 10/30/99 BY UNDERWOOD TAKEN BY WEAVER * * * |
| |
| At 1950 CDT on 10/30/99, the PSS was notified that numerous corroded |
| sprinkler heads had been discovered on High Pressure Fire Water Systems A-5, |
| A-9, A-11, C-5, and C-7 in the C-333 building. Reference ATR-1 1999-6699 |
| and 6702. These systems have been declared inoperable and fire patrols have |
| been initiated. Also, due to the number of inoperable sprinkler heads, the |
| remaining systems on the cell floor of C-333 were called into question and |
| declared inoperable. Fire patrols for the entire cell floor have been |
| initialed. The PSS determined that an update to this report was required. |
| The NRC Resident Inspector has been notified of this update. The NRC |
| Operations Officer notified R3DO (Jordan) and NMSS EO (Hickey). |
| |
| * * * UPDATE AT 2111 ON 10/31/99 BY UNDERWOOD TAKEN BY WEAVER * * * |
| |
| At 1412 CDT on 10/31/99, the PSS was notified that five corroded sprinkler |
| heads had been discovered on High Pressure Fire Water System 9 in the C-335 |
| building. There were two adjacent corroded heads discovered in two separate |
| locations and a third individual head at a different location. The system |
| was declared inoperable and fire patrols were initiated. The corroded heads |
| have since been replaced and the system returned to operable status. The |
| NRC Resident Inspector was notified of this update. The NRC Operations |
| Officer notified R3DO (Jordan) and NMSS EO (Hickey). |
| |
| * * * UPDATE AT 2121 ON 11/01/99 BY KEVIN BEASLEY TAKEN BY JOLLIFFE * * * |
| |
| At 0930 CST on 11/01/99, the PSS was notified that three corroded sprinkler |
| heads had been discovered on the High Pressure Fire Water System B-4 in the |
| C-337 building. Two of these sprinkler heads are adjacent. Two adjacent |
| corroded sprinkler heads were also discovered on the High Pressure Fire |
| Water System B-5 in the C-337 building. These systems were declared |
| inoperable and fire patrols were initiated. Work has been initiated to |
| replace the corroded heads. The NRC Resident Inspector has been notified of |
| this update. The NRC Operations Officer notified the R3DO Jim Creed. |
| |
| * * * UPDATE AT 2143 ON 11/02/99 BY KEVIN BEASLEY TAKEN BY JOLLIFFE * * * |
| |
| At 1400 CST on 11/02/99, the PSS was notified that numerous corroded |
| sprinkler heads had been discovered on High Pressure Fire Water Systems C-8 |
| and D-7 in the C-333 building. These systems had been previously declared |
| inoperable and fire patrols were being performed at the time of discovery. |
| Work has been initiated to replace the corroded heads. The NRC Resident |
| Inspector has been notified of this update. The NRC Operations Officer |
| notified the R3DO Jim Creed. |
| |
| * * * UPDATE AT 2110EST ON 11/4/99 FROM ERIC WALKER TO S. SANDIN * * * |
| |
| "At 1700 on 11/4/99, the Plant Shift Superintendent (PSS) was notified that |
| numerous corroded sprinkler heads had been discovered on High Pressure Fire |
| Water systems A-16, C-17, D-12, and D-16 in the C-333 building. These |
| systems had been previously declared inoperable, and fire patrols were being |
| performed at the time of discovery. Work his been initiated to replace the |
| corroded heads. The PSS determined that an update to this report was |
| required. |
| |
| "It has been determined that this event is reportable under |
| 10CFR76.120(c)(2) as an event in which equipment is disabled or fails to |
| function as designed." |
| |
| The NRC Senior Resident Inspector has been notified of this event. Notified |
| R3DO (Creed) and NMSS EO (Hodges). |
| |
| * * * UPDATE AT 2328 EST ON 11/23/99 FROM WHITE TAKEN BY MACKINNON * * * |
| |
| At 2240 on 11/22/99, the PSS was notified that numerous corroded sprinkler |
| heads had been discovered on High Pressure Fire Water System B-7 and B-8 in |
| the C-337 building. These systems were declared inoperable, and fire |
| patrols were initiated at the time of discovery. The PSS determined that an |
| update to this report was required. |
| |
| The NRC Resident Inspector was notified of this update by the certificate |
| holder. The R3DO (Ron Gardner) was notified by the NRC operations officer. |
+------------------------------------------------------------------------------+
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 36342 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 10/25/1999|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 11:17[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 10/24/1999|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 22:50[CDT]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 11/23/1999|
| CITY: PADUCAH REGION: 3 +-----------------------------+
| COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION |
|LICENSE#: GDP-1 AGREEMENT: Y |ROGER LANKSBURY |
| DOCKET: 0707001 |JOSIE PICCONE |
+------------------------------------------------+ |
| NRC NOTIFIED BY: W. F. CAGE | |
| HQ OPS OFFICER: STEVE SANDIN | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBA 76.120(c)(2)(i) ACCID MT EQUIP FAILS | |
|OCBB 76.120(c)(2)(ii) EQUIP DISABLED/FAILS | |
|OCBC 76.120(c)(2)(iii) REDUNDANT EQUIP INOP | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| INADEQUATE HIGH PRESSURE FIRE WATER SYSTEM INSTALLATION IN THE C-337 |
| BUILDING |
| |
| "On 10/24/99, at 2250 CDT, the Plant Shift Superintendent was notified that |
| High Pressure Fire Water system D5 in the C-337 building, does not meet |
| NFPA Code 13. During a walkdown of the system, two non-conformances were |
| noted. The spacing between two of the branch lines exceeds the NFPA 13 |
| maximum spacing criteria of 15 feet. It was also noted that the spacing of |
| the sprinkler heads on these two branch lines is between 5 to 6 feet. NFPA |
| 13 requires the heads to be spaced a minimum of 6 feet apart unless baffles |
| have been installed. These heads do not have baffles installed on them. |
| This system was inoperable at the time of discovery, and LCO required fire |
| patrols were being performed. |
| |
| "It has been determined that this event is reportable under |
| 10CFR76.120(c)(2) as an event in which equipment is disabled or fails to |
| function as designed. |
| |
| "The NRC Resident Inspector has been notified of this event." |
| |
| |
| ***RETRACTION ON 11/23/99 AT 2328 EST FROM WHITE TAKEN BY MACKINNON**** |
| |
| PGDP Engineering has evaluated this condition and concluded that the spacing |
| of the branch lines on this system (C-337 HPFWS D-5) is such that the |
| sprinkler spray pattern and coverage area is maintained without the need for |
| the center branch line, and the sprinkler can meet its intended safety |
| function. The subject non-conformance did not impact the systems ability to |
| perform its intended function, and therefore, the 10CFR76.120(c)(2) |
| reporting criteria was not met. |
| |
| The NRC Resident was notified of this retraction by the certificate holder. |
| The R3DO (Ron Gardner) and NMSS EO (Joe Holonich) were notified by the NRC |
| operations officer. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|General Information or Other |Event Number: 36374 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: SCIENTECH, INC. |NOTIFICATION DATE: 10/29/1999|
|LICENSEE: NUSI |NOTIFICATION TIME: 16:05[EDT]|
| CITY: GAITHERSBURG REGION: 1 |EVENT DATE: 10/22/1999|
| COUNTY: MONTGOMERY STATE: MD |EVENT TIME: 12:00[EDT]|
|LICENSE#: AGREEMENT: Y |LAST UPDATE DATE: 11/23/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |MARK LESSER R2 |
| |VERN HODGE NRR |
+------------------------------------------------+ |
| NRC NOTIFIED BY: PAUL LOCH | |
| HQ OPS OFFICER: DOUG WEAVER | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|CCCC 21.21 UNSPECIFIED PARAGRAPH | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| PART 21 REPORT |
| |
| SCIENTECH, Inc.'s subsidiary NUS Instruments, Inc. (NUSI) has determined |
| that a Basic Component, supplied to Carolina Power & Light Robinson Nuclear |
| Plant under CP&L purchase orders 8Q3800CM and 9D3530CJ, contains a deviation |
| that is reportable under 10 CFR Part 21. NUSI became aware of this |
| potential deviation on October 22, 1999. SCIENTECH, Inc's. President was |
| informed October 28, 1999. CP&L is aware of this problem and the components |
| have been removed from service. A formal written report will be provided |
| within 30 days of this notification. The components, Low Level Amplifier |
| M/N:RTL850, P/N:NUS-A002PA-1/3, Rev. 1 (1 ea.) and P/N:NUS-A002PA-1, Rev. 0 |
| (12 ea.), were manufactured by NUSI. These components have been supplied to |
| no other utility for use in Safety Related Systems. NUSI has opened a 10 |
| CFR Part 21 file concerning this component and has numbered it as 21-99-01. |
| |
| ***UPDATE ON 11/23/99 AT 1431 ET FROM PAUL LOCH TAKEN BY MACKINNON*** |
| |
| SCIENTECH, Inc.'s subsidiary NUS Instruments, Inc. (NUSI) formal report as a |
| follow up to the above preliminary notice which was reported to the NRC on |
| October 29, 1999. |
| |
| AFFECTED FACILITY AND PRODUCT WHICH IS NON-COMPLIANT |
| |
| The facility is Carolina Power & Light, Robinson Plant. The Basic Component |
| is Low Level Amplifier used to process signals from resistance temperature |
| detectors (RTD). Then module is NUS Instruments Model No. RTL850. |
| |
| SUPPLYING FIRM IDENTIFICATION |
| |
| NUS Instruments, Inc., a wholly owned subsidiary of SCIENTECH, Inc. |
| 440 W. Broadway |
| Idaho Falls, ID 83402 |
| |
| DESCRIPTION OF DEFECT AND ASSOCIATED SAFETY HAZARD (INCLUDES THE DATE THAT |
| INFORMATION WAS OBTAINED) |
| |
| NUS Instruments Model RTL850 Low Level Amplifiers were installed in the |
| Robinson Plant at Carolina Power & Light as replacement modules for Hagan |
| Model 118 modules and NUS Instruments Model RTD850 modules due to the RTL's |
| better temperature coefficients. The modules were being used to monitor |
| primary plant temperatures of the cold and hot logs to provide Tave and |
| DeltaT indications for operators. The lead length compensation circuitry on |
| the RTL converter PC board has its polarity inverted. This results in the |
| output of the RTL, when configured in three wire mode, to read higher than |
| it actually should. The magnitude is dependent upon the range configured, |
| the RTD type, the lead resistance and other factors. This error can result |
| in actions being taken to control the reactor based upon incorrect |
| information. NUS Instruments became aware of this problem on October 2, |
| 1999 and a 10 CFR PART 21 log entry was made with the number 21-99-01 |
| assigned to it. |
| |
| CORRECTIVE ACTION THAT HAS BEEN OR IS BEING TAKEN |
| |
| Corrective action for the basic component is to replace the internal RTL, |
| Personality Module (RPM, P/N: NUS-B003PA-3) in all RTL modules with a new |
| RPM built to a revised schematic to correct for the inverted polarity in the |
| PC board. |
| |
| NUS Instruments has verified through testing that the units equipped with |
| revision 3 RPMs properly compensated for lead length resistance and is |
| confident no recurrence of this problem will occur. All affected utilities |
| have been notified of this problem and all affected components have been |
| recalled (including modules in Non-Safety Related applications) |
| |
| ESTIMATE OF WHEN CORRECTIVE ACTION WILL BE COMPLETE: |
| |
| 14 January 2000 |
| |
| The R2DO (Len Wert) and NRR (Vern Hodge) were notified by the NRC operations |
| officer. |
+------------------------------------------------------------------------------+
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36427 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: ARKANSAS NUCLEAR REGION: 4 |NOTIFICATION DATE: 11/11/1999|
| UNIT: [] [2] [] STATE: AR |NOTIFICATION TIME: 17:53[EST]|
| RXTYPE: [1] B&W-L-LP,[2] CE |EVENT DATE: 11/11/1999|
+------------------------------------------------+EVENT TIME: 16:45[CST]|
| NRC NOTIFIED BY: SCOTT |LAST UPDATE DATE: 11/23/1999|
| HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |LINDA SMITH R4 |
|10 CFR SECTION: | |
|ADAS 50.72(b)(2)(i) DEG/UNANALYZED COND | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE |
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 N N 0 Cold Shutdown |0 Cold Shutdown |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| FAILURE OF INSIDE AND OUTSIDE CCW CONTAINMENT ISOLATION VALVES. |
| |
| ON 11/09/99, WHILE IN MODE 5, COLD SHUTDOWN, FOR MID-CYCLE OUTAGE, THE |
| OUTSIDE CONTAINMENT ISOLATION VALVE FOR COMPONENT COOLING WATER (CCW) RETURN |
| (2CV-5255-1) FAILED TO FULLY CLOSE BASED ON FLOW NOISE DURING THE INITIAL |
| STROKE. THE VALVE WAS STROKED 10 TIMES AND APPEARED TO CLOSE ON ALL STROKES |
| FOLLOWING THE INITIAL ATTEMPT. ON 11/10/99, THE INSIDE CONTAINMENT |
| ISOLATION VALVE FOR CCW RETURN (2CV-5254-2) FAILED TO REACH THE TRAVEL LIMIT |
| ON ITS FIRST STROKE. AN IMPROMPTU LEAK TEST USING WATER WITH 2CV-5254-2 IN |
| ITS INITIAL POSITION INDICATED 300-500 ML/MIN LEAKAGE VIA THE VALVE SEAT. |
| BOTH VALVES WERE OVERHAULED DURING THE REFUELING OUTAGE IN EARLY 1999 AND |
| SUCCESSFULLY PASSED POST-MAINTENANCE TESTING. DETERMINATION OF THE CAUSE(S) |
| AND RESTORATION OF BOTH VALVES TO AN OPERABLE STATUS WILL BE COMPLETED |
| BEFORE PLANT STARTUP. THERE DOES NOT APPEAR TO BE FIRM EVIDENCE CONCERNING |
| A TIME OF FAILURE BEFORE THE CONDITIONS WERE DISCOVERED. ON NOVEMBER 11, |
| 1999, DURING A REVIEW OF THESE CONDITIONS AFFECTING THE SAME CONTAINMENT |
| PENETRATION, IT WAS DETERMINED THAT THEY MET THE REPORTING CRITERION OF 10 |
| CFR 5O.72(b)(2)(I) AS A SERIOUS DEGRADATION OF A PRINCIPAL SAFETY BARRIER |
| (REACTOR CONTAINMENT) FOUND WHILE SHUTDOWN. |
| |
| THE RESIDENT INSPECTOR WAS NOTIFIED. |
| |
| * * * RETRACTED AT 1030 EST ON 11/23/99 BY TOM SCOTT TO FANGIE JONES * * * |
| |
| "ARKANSAS NUCLEAR ONE UNIT 2 IS RETRACTING THE REPORT IDENTIFIED AS EVENT # |
| 36427 MADE PER 10 CFR 50.72(b)(2)(i) ON NOVEMBER 11, 1999. AFTER COMPLETING |
| INSPECTION, TESTING, AND ENGINEERING ANALYSIS OF THE TWO COMPONENT COOLING |
| WATER (CCW) SYSTEM CONTAINMENT ISOLATION VALVES, IT HAS BEEN CONCLUDED THAT |
| THE OUTSIDE ISOLATION VALVE (2CV-5255-1) WAS OPERABLE IN ITS AS-FOUND STATE |
| AND WOULD HAVE BEEN CAPABLE OF ISOLATING THE AFFECTED CONTAINMENT |
| PENETRATION DURING THE CURRENT OPERATING CYCLE. THE LEAKAGE THAT CAUSED THE |
| INITIAL REPORT OCCURRED DURING A SPECIAL DIFFERENTIAL PRESSURE TEST AFTER |
| CCW SYSTEM WATER TEMPERATURE HAD BEEN REDUCED TO LESS THAN THE NORMAL |
| OPERATING VALUE. THE LOWER TEMPERATURE CAUSED THE VALVE SEATING MATERIAL TO |
| BECOME LESS PLIABLE. NORMAL CCW SERVICE TEMPERATURE RESULTS IN A SOFTER |
| VALVE SEAT ALLOWING THE VALVE TO CLOSE FULLY AND SEAL THE PENETRATION. THE |
| INSIDE CCW ISOLATION FOR THE SAME PENETRATION (2CV-5254-2) WAS DETERMINED TO |
| HAVE BEEN INOPERABLE DUE TO A BINDING OF THE LIMIT DECK GEAR. IT WAS |
| RESTORED TO AN OPERABLE STATUS PRIOR TO STARTING PLANT HEATUP. SINCE THERE |
| IS NO CREDIBLE DESIGN BASIS ACCIDENT THAT WOULD RESULT IN CCW BEING COOLED |
| TO THE POINT WHERE THE PENETRATION WOULD NOT HAVE BEEN ISOLATED. THERE IS |
| NO REPORTING CRITERION |
| APPLICABLE TO THIS CONDITION." |
| |
| THE LICENSEE NOTIFIED THE NRC RESIDENT INSPECTOR. THE NRC OPERATIONS |
| OFFICER NOTIFIED THE R4DO (BLAIR SPITZBERG). |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|General Information or Other |Event Number: 36458 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: MISSISSIPPI DEPARTMENT OF HEALTH |NOTIFICATION DATE: 11/23/1999|
|LICENSEE: MISSISSPPI DEPARTMET OF TRANSPORTATIO|NOTIFICATION TIME: 09:55[EST]|
| CITY: REGION: 2 |EVENT DATE: 11/19/1999|
| COUNTY: STATE: MS |EVENT TIME: 07:00[CST]|
|LICENSE#: MS26101 AGREEMENT: Y |LAST UPDATE DATE: 11/23/1999|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |EDWARD MCALPINE R2 |
| |BRIAN SMITH NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: ROBERT NELSON | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|NAGR AGREEMENT STATE | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| AGREEMENT STATE REPORT - POSSIBLE DAMAGED TROXLER GAUGE |
| |
| On 11/19/99 at about 0700 CST, a Mississippi Department of Transportation |
| (DOT) truck was involved in an accident. The truck was carrying a Troxler |
| Model 4640B Moisture Density Gauge in a locked and chained Type-2 container. |
| The container broke free of the chain but remained in the truck during the |
| accident. There was no apparent damage to the gauge. The Mississippi |
| Department of Health was contacted at about 0800 CST about the accident. |
| They recommended that the gauge be leak tested, and DOT is sending the gauge |
| to Troxler for testing. |
| |
| The Mississippi Department of Health contacted NRC Region 2 (Richard |
| Woodruff) and discussed this incident with them. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 36459 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: SUSQUEHANNA REGION: 1 |NOTIFICATION DATE: 11/23/1999|
| UNIT: [1] [2] [] STATE: PA |NOTIFICATION TIME: 11:07[EST]|
| RXTYPE: [1] GE-4,[2] GE-4 |EVENT DATE: 11/23/1999|
+------------------------------------------------+EVENT TIME: 10:30[EST]|
| NRC NOTIFIED BY: ARDIE KISINGER |LAST UPDATE DATE: 11/23/1999|
| HQ OPS OFFICER: DOUG WEAVER +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |CURTIS COWGILL R1 |
|10 CFR SECTION: | |
|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 |
|2 N Y 100 Power Operation |100 Power Operation |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| TRAVERSING INCORE PROBE GUIDE TUBE PRIMARY CONTAINMENT ISOLATION CONTROLS DO |
| NOT MEET GENERAL DESIGN CRITERION 56. |
| |
| The design of the Traversing Incore Probe (TIP) guide tube primary |
| containment isolation controls does not meet General Design Criterion 56 for |
| lines penetrating primary containment that communicate directly with the |
| drywell atmosphere. A failure at the TIP Guide Tube Isolation Ball Valve |
| could result in a direct pathway from the Drywell atmosphere to the Reactor |
| Building secondary containment. This constitutes a condition that is |
| outside the design basis of the plant. |
| |
| The TIP Ball Valve controls are not designed or qualified for nuclear |
| safety-related service and do not meet the requirements of IEEE 279-1971 |
| Criteria for Protection Systems. As a result, there can be no assurance |
| that multiple failures, resulting in undesired opening of any or all of the |
| five guide tube penetrations, would not occur under design basis accident |
| conditions. However, the TIP Ball Valve and TIP Shear Valve actuation |
| circuits remain operable and continue to be capable of operating as |
| containment boundary devices. There remains a high degree of confidence |
| that the TIP Ball Valves will remain isolated, when required, and that the |
| Shear Valves will be capable of isolating when necessary. |
| |
| The TIP Ball Valve control is powered through the TIP Drive Mechanism. The |
| TIP Drive Mechanism is in the de-energized state (i.e., OFF) during normal |
| operating conditions. The TIP Ball Valve will be further disabled by |
| removing the power source from the Drive Mechanism when the TIP system is |
| not actively in use per Technical Specification Surveillance Requirement |
| (SR) 3.3.1.1.8. The Drive Mechanism power will be restored, under |
| administrative control, when the TIP system is required for use per SR |
| 3.3.1.1.8, and as system maintenance and testing dictate. |
| |
| This report is applicable to Susquehanna Units 1 and 2. |
+------------------------------------------------------------------------------+
Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021