Event Notification Report for November 24, 2000
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
11/22/2000 - 11/24/2000
** EVENT NUMBERS **
37486 37545 37546 37547
!!!!!!!!! THIS EVENT HAS BEEN RETRACTED. THIS EVENT HAS BEEN RETRACTED !!!!!!!
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 37486 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 11/03/2000|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 14:27[EST]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 11/02/2000|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 14:30[CST]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 11/22/2000|
| CITY: PADUCAH REGION: 3 +-----------------------------+
| COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION |
|LICENSE#: GDP-1 AGREEMENT: Y |DAVID HILLS R3 |
| DOCKET: 0707001 |BRIAN SMITH NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: MIKE UNDERWOOD | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|OCBB 76.120(c)(2)(ii) EQUIP DISABLED/FAILS | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| CRITICALITY ALARM HORNS AIR PRESSURE FOUND OUT OF SPECIFICATION DURING |
| SURVEILLANCE |
| |
| "At 1330 on 11/2/00, the Plant Shift Superintendent was notified that the |
| testing of the C-337 and C-337-A Criticality Accident Alarm System (CAAS) |
| air horn regulators resulted in as found data which is outside of the |
| optimum air pressure band allowed to insure desired horn sound quality. |
| Twelve of the twenty-five CAAS horn regulators located in these two areas |
| were discovered outside the desired pressure band. The effect of this as |
| found condition is unknown at this time and is being evaluated by |
| Engineering. This evaluation will require greater than the 24-hour reporting |
| time limit allowed by 10 CFR 76.120.c.2. Due to the uncertainties and the |
| length of time required to complete the engineering evaluation the condition |
| is being conservatively reported. |
| |
| "Reasonable assurance of operability of CAAS horns in these and other |
| buildings exists based on the successful completion of quarterly and annual |
| TSR surveillances. In addition, all CAAS horn regulators found outside of |
| established criteria during this and previous tests on other building CAAS |
| systems were returned to acceptable values prior to returning the systems to |
| service. |
| |
| "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 Senior Resident has been notified of this event." The DOE |
| representative will be notified. |
| |
| * * * RETRACTION 1450 11/22/2000 FROM TOM WHITE TAKEN BY BOB STRANSKY * * * |
| |
| "On November 2, 2000, the PSS was notified that the testing of the C-337 and |
| C-337A CAAS air horns had resulted in the discovery that the horn air |
| regulator pressure was outside of the allowed optimum air pressure band used |
| to ensure desired horn sound quality. This condition potentially affected |
| the audibility of twelve of the twenty-five horns located in the C-337 and |
| C-337A. The actual affect on the system was unknown at the time and could |
| not be determined within the 24-hour reporting limit. Thus, the condition |
| was conservatively reported to the NRC per 10CFR76.120(c)(2). |
| |
| Subsequently, System Engineering issued Engineering Notice EN-C-822-00-035 |
| that transmitted the results of Operability Evaluation OE-C-822-00-005. This |
| documented the results of additional CAAS horn testing at the air regulator |
| pressure values noted on November 2, 2000 and testing data in other |
| buildings. The evaluation concluded that although there is an expected |
| amount of drift or variance in the settings of the air pressure regulators |
| [for] the CAAS horns, in the as-found condition, could have performed their |
| intended safety function and pass the audibility criteria described in the |
| SAR." |
| |
| The NRC resident inspector has been informed of this retraction. Notified |
| R3DO (Creed), NMSS (Smith). |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Fuel Cycle Facility |Event Number: 37545 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: PADUCAH GASEOUS DIFFUSION PLANT |NOTIFICATION DATE: 11/22/2000|
| RXTYPE: URANIUM ENRICHMENT FACILITY |NOTIFICATION TIME: 14:50[EST]|
| COMMENTS: 2 DEMOCRACY CENTER |EVENT DATE: 11/22/2000|
| 6903 ROCKLEDGE DRIVE |EVENT TIME: 03:40[CST]|
| BETHESDA, MD 20817 (301)564-3200 |LAST UPDATE DATE: 11/22/2000|
| CITY: PADUCAH REGION: 3 +-----------------------------+
| COUNTY: McCRACKEN STATE: KY |PERSON ORGANIZATION |
|LICENSE#: GDP-1 AGREEMENT: Y |JAMES CREED R3 |
| DOCKET: 0707001 |BRIAN SMITH NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: T. WHITE | |
| HQ OPS OFFICER: BOB STRANSKY | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|NCFR NON CFR REPORT REQMNT | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| SAFETY SYSTEM ACTUATION |
| |
| "At 0340 on 11/22/00, the PSS office was notified that a primary condensate |
| alarm was received on the C-333A position 3 South autoclave Water Inventory |
| Control System (WICS). The WICS system is required to be operable while |
| heating in mode 5 according to TSR 2.2.4.2. The autoclave was checked |
| according to the alarm response procedure, removed from service and the |
| Water Inventory Control System was declared inoperable by the Plant Shift |
| Superintendent. The WICS actuation has been determined to be a valid |
| actuation by the System Engineer. |
| |
| "This safety system actuation is reportable to the NRC as required by Safety |
| Analysis Report, section 6.9, table 1 criteria J.2, Safety System actuation |
| due to a valid signal as a 24-hour event notification." |
| |
| The NRC Senior Resident Inspector has been notified of this event. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|General Information or Other |Event Number: 37546 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| REP ORG: ILLINOIS DEPT OF NUCLEAR SAFETY |NOTIFICATION DATE: 11/22/2000|
|LICENSEE: JOHNS MANVILLE INTERNATIONAL |NOTIFICATION TIME: 17:23[EST]|
| CITY: WAUKEGAN REGION: 3 |EVENT DATE: 11/21/2000|
| COUNTY: STATE: IL |EVENT TIME: [CST]|
|LICENSE#: AGREEMENT: Y |LAST UPDATE DATE: 11/22/2000|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |JAMES CREED R3 |
| |PHILIP TING NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: TOM SIKES | |
| HQ OPS OFFICER: BOB STRANSKY | |
+------------------------------------------------+ |
|EMERGENCY CLASS: N/A | |
|10 CFR SECTION: | |
|NAGR AGREEMENT STATE | |
| | |
| | |
| | |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| AGREEMENT STATE REPORT |
| |
| The licensee contacted the State of Illinois to request assistance in |
| locating a 20 mCi Cs-137 source. The source was mounted in an Omart model |
| SH-F1 holder, and was licensed under a general license. Representatives of |
| the state surveyed warehouses and other buildings throughout the licensee's |
| facility and other licensee locations, but were unable to locate the source. |
| The licensee is currently investigating whether the source may have been |
| sent to a licensee facility in Colorado; however, the source may have been |
| discarded during renovations to the warehouse in which it had been located. |
| In this instance, the source may have been deposited in a landfill in |
| Wisconsin. The state is continuing its investigation of this matter. |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
|Power Reactor |Event Number: 37547 |
+------------------------------------------------------------------------------+
+------------------------------------------------------------------------------+
| FACILITY: ARKANSAS NUCLEAR REGION: 4 |NOTIFICATION DATE: 11/23/2000|
| UNIT: [1] [2] [] STATE: AR |NOTIFICATION TIME: 04:25[EST]|
| RXTYPE: [1] B&W-L-LP,[2] CE |EVENT DATE: 11/23/2000|
+------------------------------------------------+EVENT TIME: 03:15[CST]|
| NRC NOTIFIED BY: WAYNE AHO |LAST UPDATE DATE: 11/23/2000|
| HQ OPS OFFICER: FANGIE JONES +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: N/A |GAIL GOOD R4 |
|10 CFR SECTION: | |
|AARC 50.72(b)(1)(v) OTHER ASMT/COMM INOP | |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|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 Cold Shutdown |0 Cold Shutdown |
| | |
+------------------------------------------------------------------------------+
EVENT TEXT
+------------------------------------------------------------------------------+
| SPDS OUT OF SERVICE FOR PLANNED MAINTENANCE |
| |
| The safety parameter display system (SPDS) was deenergized for planned |
| maintenance. The system is expected to be down for 2 to 3 hours. |
| |
| The licensee notified the NRC Resident Inspector and intends to notify the |
| state authorities. |
+------------------------------------------------------------------------------+
Page Last Reviewed/Updated Thursday, March 25, 2021
Page Last Reviewed/Updated Thursday, March 25, 2021