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Event Notification Report for September 1, 2000

                    U.S. Nuclear Regulatory Commission
                              Operations Center

                              Event Reports For
                           08/31/2000 - 09/01/2000

                              ** EVENT NUMBERS **

37277  37278  37279  37280  37281  

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|Fuel Cycle Facility                              |Event Number:   37277       |
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| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT      |NOTIFICATION DATE: 08/31/2000|
|   RXTYPE: URANIUM ENRICHMENT FACILITY          |NOTIFICATION TIME: 05:30[EDT]|
| COMMENTS: 2 DEMOCRACY CENTER                   |EVENT DATE:        08/30/2000|
|           6903 ROCKLEDGE DRIVE                 |EVENT TIME:        16:10[CDT]|
|           BETHESDA, MD 20817    (301)564-3200  |LAST UPDATE DATE:  08/31/2000|
|    CITY:  PADUCAH                  REGION:  3  +-----------------------------+
|  COUNTY:  McCRACKEN                 STATE:  KY |PERSON          ORGANIZATION |
|LICENSE#:  GDP-1                 AGREEMENT:  Y  |MELVYN LEACH         R3      |
|  DOCKET:  0707001                              |BRIAN SMITH          NMSS    |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  -                            |                             |
|  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   |                             |
|                                                |                             |
|                                                |                             |
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                                   EVENT TEXT                                   
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| AREA CONTROL ROOM (ACR) ALARM POWER LOST DUE TO A FAILURE IN THE POWER       |
| TRANSFER SWITCH                                                              |
|                                                                              |
| "At 1610 on 08-30-00 the PSS was informed of a C-331 CAAS Cluster J Trouble  |
| alarm. Investigation of trouble alarm revealed that C-331 CAAS Horns         |
| solenoids had lost DC power. The C-331 ACR DC alarm power was lost due to    |
| the failures in the power transfer switch. Contacts fused together and a     |
| solenoid failed which allowed the transfer switch to reposition to the mid   |
| (no power) position and prevented repositioning to the emergency power       |
| position.  Since the CAAS horns did not have power,  they were unable to     |
| perform the intended safety function, rendering the system inoperable for    |
| audibility. The system is required to be operable according to TSR 2.4.4.7.b |
| for the current mode of operation. The horns were without power (inoperable) |
| for approximately 30 minutes until the transfer switch was physically forced |
| to the emergency power position.                                             |
|                                                                              |
| This event is reportable under 10 CFR 76.120(c)(2) as an event in which      |
| equipment required by the TSR is disabled or fails to function as designed.  |
|                                                                              |
| The NRC Resident Inspector has been notified of this event.                  |
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|Other Nuclear Material                           |Event Number:   37278       |
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| REP ORG:  U.S. AIR FORCE                       |NOTIFICATION DATE: 08/31/2000|
|LICENSEE:  U.S. AIR FORCE                       |NOTIFICATION TIME: 10:15[EDT]|
|    CITY:  CANNON AFB               REGION:  4  |EVENT DATE:        08/30/2000|
|  COUNTY:                            STATE:  NM |EVENT TIME:        14:00[MDT]|
|LICENSE#:  42-23539-01AF         AGREEMENT:  Y  |LAST UPDATE DATE:  08/31/2000|
|  DOCKET:                                       |+----------------------------+
|                                                |PERSON          ORGANIZATION |
|                                                |CHUCK PAULK          R4      |
|                                                |BRIAN SMITH                  |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  MAJOR WROBEL                 |                             |
|  HQ OPS OFFICER:  FANGIE JONES                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|BAB1 20.2201(a)(1)(i)    LOST/STOLEN LNM>1000X  |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
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                                   EVENT TEXT                                   
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| 4 MISSING EXIT SIGNS CONTAINING TRITIUM                                      |
|                                                                              |
| The licensee reported that 4 exit signs, 'Safety Sign' by SRB Technologies   |
| Inc., each containing 20 curies of tritium, were discovered missing and      |
| presumed stolen from building 1245.  An investigation is underway and a      |
| report will follow in 30 days.                                               |
|                                                                              |
| The licensee notified NRC R4 (Gaines).                                       |
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|Fuel Cycle Facility                              |Event Number:   37279       |
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| FACILITY: GLOBAL NUCLEAR FUEL - AMERICAS       |NOTIFICATION DATE: 08/31/2000|
|   RXTYPE: URANIUM FUEL FABRICATION             |NOTIFICATION TIME: 10:55[EDT]|
| COMMENTS: LEU CONVERSION (UF6 TO UO2)          |EVENT DATE:        08/31/2000|
|           LEU FABRICATION                      |EVENT TIME:        10:00[EDT]|
|           LWR COMMERICAL FUEL                  |LAST UPDATE DATE:  08/31/2000|
|    CITY:  WILMINGTON               REGION:  2  +-----------------------------+
|  COUNTY:  NEW HANOVER               STATE:  NC |PERSON          ORGANIZATION |
|LICENSE#:  SNM-1097              AGREEMENT:  Y  |CAUDLE JULIAN        R2      |
|  DOCKET:  07001113                             |BRIAN SMITH          NMSS    |
+------------------------------------------------+                             |
| NRC NOTIFIED BY:  ALLEN MABRY                  |                             |
|  HQ OPS OFFICER:  FANGIE JONES                 |                             |
+------------------------------------------------+                             |
|EMERGENCY CLASS:          N/A                   |                             |
|10 CFR SECTION:                                 |                             |
|BAB2 20.2201(a)(1)(ii)   LOST/STOLEN LNM>10X    |                             |
|KFIS 70.52(b)            LOSS OF SNM/FISSILE    |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
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                                   EVENT TEXT                                   
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| 2 SETS OF CALIBRATION SOURCES DISCOVERED MISSING                             |
|                                                                              |
| "At 10 AM on August 31, 2000 Global Nuclear Fuel - Americas determined that  |
| two sets of instrument calibration sources are missing following a thorough  |
| search. Each source set contains four metal disks electroplated with Pu-239, |
| Total activity contained in both source sets is approximately 1.7            |
| microcuries. The sources had been sent to a vendor for calibration           |
| re-certification.                                                            |
|                                                                              |
| "The sources were unaccounted for during a routine source inventory at       |
| GNF-A. The vendor performing the calibration recertification last accounted  |
| for the sources when shipped on August 2, 2000. Records of the common        |
| carrier which transported the sources from the vendor to GNF-A indicate the  |
| material was shipped as an excepted package limited quantity and delivered   |
| to GNF-A on August 7. 2000. The inner packaging and each source are marked   |
| with radioactive warning labels. There is no measurable radiation dose rate  |
| from this type of package. A search of likely locations at GNFA has been     |
| conducted with negative results.                                             |
|                                                                              |
| "This event is reportable pursuant to 10CFR20.2201, 10CFR70.52 and           |
| 10CFR74.11. Efforts to locate the sources continue."                         |
|                                                                              |
| The licensee intends to notify New Hanover County, North Carolina State      |
| Department of Radiation Protection, and NRC R2(Ayers).                       |
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|Power Reactor                                    |Event Number:   37280       |
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| FACILITY: SUSQUEHANNA              REGION:  1  |NOTIFICATION DATE: 08/31/2000|
|    UNIT:  [1] [2] []                STATE:  PA |NOTIFICATION TIME: 19:42[EDT]|
|   RXTYPE: [1] GE-4,[2] GE-4                    |EVENT DATE:        08/24/2000|
+------------------------------------------------+EVENT TIME:        08:38[EDT]|
| NRC NOTIFIED BY:  FITCH                        |LAST UPDATE DATE:  08/31/2000|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |PETE ESELGROTH       R1      |
|10 CFR SECTION:                                 |                             |
|AIND 50.72(b)(2)(iii)(D) ACCIDENT MITIGATION    |                             |
|                                                |                             |
|                                                |                             |
|                                                |                             |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR|   INIT RX MODE  |CURR PWR|  CURR RX MODE   |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1     N          Y       100      Power Operation  |100      Power Operation  |
|2     N          N       0        Startup          |0        Startup          |
|                                                   |                          |
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                                   EVENT TEXT                                   
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| THE CONTROL ROOM EMERGENCY OUTSIDE AIR SYSTEM(CREOAS) FUNCTION IS DEFEATED   |
| WHEN THE CONTROL ROOM SMOKE REMOVAL FANS OPERATE.                            |
|                                                                              |
| On August 24, 2000, Susquehanna Unit 1 was Operating at 100% power and Unit  |
| 2 was in Mode 2 at 0% power. Operations had placed the Control Structure     |
| (CS) Smoke Removal ventilation system in service aligned to the Control Room |
| (CR) and Technical Support Center (TSC) areas to exhaust the foul odor       |
| created by welding on the CR ventilation duct as part of modification work.  |
| The CS Smoke Removal System was shutdown after personnel noticed a negative  |
| differential pressure was created in the CR and TSC areas. This mode of      |
| operation existed for 2 hours and 18 minutes. Subsequent review of the event |
| on August 31, 2000 concluded that when the CR Smoke Removal fans operate,    |
| they act to defeat the function of the CREOAS fans which are intended to     |
| maintain the CS pressure positive. Maintaining a positive pressure in the CS |
| assures that all air entering the CS has passed through the CREOAS filter    |
| train (thus assuring no air enters via infiltration).                        |
|                                                                              |
| The NRC Resident Inspector was notified.                                     |
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|Power Reactor                                    |Event Number:   37281       |
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| FACILITY: CLINTON                  REGION:  3  |NOTIFICATION DATE: 08/31/2000|
|    UNIT:  [1] [] []                 STATE:  IL |NOTIFICATION TIME: 21:32[EDT]|
|   RXTYPE: [1] GE-6                             |EVENT DATE:        08/31/2000|
+------------------------------------------------+EVENT TIME:        17:47[CDT]|
| NRC NOTIFIED BY:  TIEDEMANN                    |LAST UPDATE DATE:  08/31/2000|
|  HQ OPS OFFICER:  CHAUNCEY GOULD               +-----------------------------+
+------------------------------------------------+PERSON          ORGANIZATION |
|EMERGENCY CLASS:          N/A                   |MELVYN LEACH         R3      |
|10 CFR SECTION:                                 |                             |
|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  |
|                                                   |                          |
|                                                   |                          |
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                                   EVENT TEXT                                   
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| PLANT ENTERED 72 HOUR LCO ACTION STATEMENT WHEN DIVISION III DIESEL          |
| GENERATOR WAS DECLARED INOPERABLE                                            |
|                                                                              |
| During performance of Fire Protection Surveillance 9337.81 (performs a       |
| functional check of the Division Ill Diesel Generator (DG) Carbon Dioxide    |
| (CO2) system operation), the Division Ill DG ventilation system tripped      |
| during restoration.  Electrical Maintenance personnel were performing a      |
| functional check of the Division Ill DG room thermal detectors when the      |
| panel reset push button was depressed.  The anticipated resets did not occur |
| and the decision was made to restore the system to a safe condition.  During |
| restoration, a sticking relay prevented restoration of the Division Ill DG   |
| ventilation system.  The relay has been reset and the ventilation system     |
| restored.                                                                    |
|                                                                              |
| Division Ill DG was declared INOPERABLE at 1747 and the plant entered LCO    |
| 3.8.1.                                                                       |
| Action B.1- Perform 9082.01 within 1 hour and every 8 hours thereafter.      |
| Action B.2- Declare required features supported by Division Ill DG inop when |
| the redundant required features are inop, within 4 hours.                    |
| Action B.3.1- Determine Operable DG are not inop due to common cause failure |
| within 24 hours - This action -completed.                                    |
| Action B.4- Restore Div 3 DG to Operable within 72 hrs.                      |
| Division Ill DG was declared OPERABLE at 1813 and the LCO was exited.        |
|                                                                              |
| The NRC Resident Inspector was notified..                                    |
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