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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.                      |
+------------------------------------------------------------------------------+