Event Notification Report for July 2, 2002
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
07/01/2002 - 07/02/2002
** EVENT NUMBERS **
39019 39032
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|General Information or Other |Event Number: 39019 |
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| REP ORG: TENNESSEE DIV OF RAD HEALTH |NOTIFICATION DATE: 06/26/2002|
|LICENSEE: TENNESSEE DEPT OF TRANSPORTATION |NOTIFICATION TIME:
10:20[EDT]|
| CITY: CORRYTON REGION: 2 |EVENT DATE: 06/25/2002|
| COUNTY: KNOX STATE: TN |EVENT TIME: 21:00[EDT]|
|LICENSE#: R-19017 AGREEMENT: Y |LAST UPDATE DATE: 06/26/2002|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |LEONARD WERT R2 |
| |FRED BROWN NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: DEBRA SHULTS | |
| HQ OPS OFFICER: FANGIE JONES | |
+------------------------------------------------+ |
|EMERGENCY CLASS: NON EMERGENCY | |
|10 CFR SECTION: | |
|NAGR AGREEMENT STATE | |
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EVENT TEXT
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| AGREEMENT STATE REPORT - STOLEN TROXLER GAUGE |
| |
| The following is taken from a faxed report: |
| |
| Event Report ID No.: TN-02-083 |
| |
| License No: TN-02-083 |
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| Licensee: Tennessee Division of Radiological Health |
| |
| Event date and time: June 25, 2002, 2100 EDT |
| |
| Event location: R-19017 |
| |
| Event type: Stolen moisture density gauge |
| |
| Notifications: USNRC Region II, Knox County Sheriffs Department |
| |
| Event description: Tennessee Department of Transportation, Region 1, called |
| the Division at 0818 CDT to report a stolen moisture density gauge. The |
| gauge is a Troxler model 3430, serial number 23117 containing 8 millicuries |
| of Cesium-137, serial number 75-4928 and 40 millicuries of Am-241:Be, serial |
| number 47-18934. The gauge was inside a white Ford Aerostar van. License |
| number S4-PE83, owned by the State. The van was parked at the operator's |
| home on McGinnis Road in Corryton, TN. |
| |
| Media attention: None at this time. A press release will be issued by TDEC. |
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|Power Reactor |Event Number: 39032 |
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| FACILITY: SAN ONOFRE REGION: 4 |NOTIFICATION DATE: 07/01/2002|
| UNIT: [] [2] [] STATE: CA |NOTIFICATION TIME: 00:33[EDT]|
| RXTYPE: [1] W-3-LP,[2] CE,[3] CE |EVENT DATE: 06/30/2002|
+------------------------------------------------+EVENT TIME: 18:58[PDT]|
| NRC NOTIFIED BY: CONOSCENTI |LAST UPDATE DATE: 07/01/2002|
| HQ OPS OFFICER: JOHN MacKINNON +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |WILLIAM JOHNSON R4 |
|10 CFR SECTION: | |
|ARPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA| |
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+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE
|
+-----+----------+-------+--------+-----------------+--------+-----------------+
| | |
|2 A/R Y 18 Power Operation |0 Hot Standby |
| | |
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EVENT TEXT
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| AUTOMATIC REACTOR TRIP ON LOW STEAM GENERATOR PRESSURE DUE TO TWO
ADDITIONAL |
| STEAM DUMP VALVES FULLY OPENING DURING STARTUP. |
| |
| System Affected |
| "Primary: Rx Trip, CEA, RCP's stayed on, PLCS" |
| "Secondary: SBCS Open, MSIV's, ADV, MFW, AFW" |
| |
| Actuations and Their Initiating Signals |
| "MSIS A & B @ 741 PSIA. Lowest Seen = MSIS setpoint" |
| |
| Causes |
| "Prelim: 4 SBCS All Fast Open . . . " |
| |
| Effect Of Event Plant |
| "Low S/G Pressure Rx Trip, Turbine Trip, MSIS isolated secondary. CVCS |
| remained in service. MSIS verified and rest, then AFW initiated. (Did not |
| want cooldown from steam-driven AFW Pp. Adequate S/G water level maintained |
| throughout. Approx. 50% NR)." |
| |
| Actions Taken or Planned |
| "EOI's: S023-12-1 (SPTA's), S023-12-2 (RTR), OI: S023-S-1.3.1 S0123-0-14 4 |
| Hour" |
| "E-PLAN Review P S/G" [decreased]) |
| |
| The licensee was going to bring the main turbine on line which was rolling |
| at 1800 rpm. Two steam dump bypass valves were open dumping steam to the |
| main condenser to help maintain reactor power at 18%. Unexpectedly two |
| additional steam dump bypass valves opened. When these two additional steam |
| dump bypass valves opened the first two open valves initial started to close |
| then they went full open. Steam generator pressure decreased to the low |
| steam generator pressure setpoint of 741 psia at which point an automatic |
| reactor trip plus a main steam isolation signal (MSIS) was generated, main |
| steam isolation valves (MSIV's) closed. All rods fully inserted into the |
| core. Atmospheric steam dump valves were used to maintained proper reactor |
| coolant system temperature. The licensee said that they did not have any |
| leaking steam generator tubes. Proper steam generator water inventory was |
| verified at which time the MSIS signal was reset, then one Motor Driven |
| Auxiliary Feedwater Pump was manually initiated to maintain proper steam |
| generator water level. Main feedwater system isolated due to the MSIS |
| signal and the reactor trip. All emergency core cooling systems, emergency |
| diesel generators are fully operable if needed. The electrical grid is |
| stable. The licensee is investigating why the two additional steam dump |
| bypass valves opened. |
| |
| The NRC Resident Inspector was notified of this event by the licensee. |
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Page Last Reviewed/Updated Wednesday, March 24, 2021
Page Last Reviewed/Updated Wednesday, March 24, 2021