Event Notification Report for July 5, 2002
U.S. Nuclear Regulatory Commission
Operations Center
Event Reports For
07/04/2002 - 07/05/2002
** EVENT NUMBERS **
39033 39041
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|General Information or Other |Event Number: 39033 |
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| REP ORG: MARYLAND DEPT OF THE ENVIRONMENT |NOTIFICATION DATE:
07/01/2002|
|LICENSEE: NEUTRON PRODUCTS |NOTIFICATION TIME: 08:16[EDT]|
| CITY: ROCKVILLE REGION: 1 |EVENT DATE: 06/27/2002|
| COUNTY: MONTGOMERY STATE: MD |EVENT TIME: 08:00[EDT]|
|LICENSE#: MD 3102501 AGREEMENT: Y |LAST UPDATE DATE: 07/01/2002|
| DOCKET: |+----------------------------+
| |PERSON ORGANIZATION |
| |MICHAEL MODES R1 |
| |FRED BROWN NMSS |
+------------------------------------------------+ |
| NRC NOTIFIED BY: ALAN JACOBSON | |
| HQ OPS OFFICER: JOHN MacKINNON | |
+------------------------------------------------+ |
|EMERGENCY CLASS: NON EMERGENCY | |
|10 CFR SECTION: | |
|NAGR AGREEMENT STATE | |
| | |
| | |
| | |
| | |
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EVENT TEXT
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| RADIATION ALARM AT A WASTE TRANSFER STATION WAS ACTIVATED BY A TUCK
|
| CONTAINING REFUSE. |
| |
| |
| A truck containing a roll off refuse container set off the radiation monitor |
| at the Montgomery County Waste Transfer Station located in Rockville, MD at |
| 0800 hours on 06/27/02. The refuse container was searched and a bag |
| containing paper towels and rags found to be contaminated with cobalt-60 |
| with a radiation reading of 0.5 mr/hr. The load was rejected and sent back |
| to Neutron Products Incorporated, Dickerson, MD. The load was evaluated and |
| the radioactive material was removed and placed into storage with |
| radioactive waste. Neutron Products was cited by the State of Maryland for |
| improper disposal of radioactive waste and inadequate surveying and |
| monitoring. |
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|Power Reactor |Event Number: 39041 |
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| FACILITY: CLINTON REGION: 3 |NOTIFICATION DATE: 07/04/2002|
| UNIT: [1] [] [] STATE: IL |NOTIFICATION TIME: 05:57[EDT]|
| RXTYPE: [1] GE-6 |EVENT DATE: 07/04/2002|
+------------------------------------------------+EVENT TIME: 01:33[CDT]|
| NRC NOTIFIED BY: MERRIKEN |LAST UPDATE DATE: 07/04/2002|
| HQ OPS OFFICER: CHAUNCEY GOULD +-----------------------------+
+------------------------------------------------+PERSON ORGANIZATION |
|EMERGENCY CLASS: NON EMERGENCY |PATRICK HILAND R3 |
|10 CFR SECTION: | |
|ARPS 50.72(b)(2)(iv)(B) RPS ACTUATION - CRITICA| |
| | |
| | |
| | |
+-----+----------+-------+--------+-----------------+--------+-----------------+
|UNIT |SCRAM CODE|RX CRIT|INIT PWR| INIT RX MODE |CURR PWR| CURR RX MODE
|
+-----+----------+-------+--------+-----------------+--------+-----------------+
|1 A/R Y 95 Power Operation |0 Hot Shutdown |
| | |
| | |
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EVENT TEXT
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| REACTOR SCRAM FROM 94.6% POWER DUE TO TURBINE TRIP CAUSED BY
GENERATOR TRIP |
| AND LOCKOUT |
| |
| On July 4, 2002, at 0133, Clinton Power Station scrammed from 94.6% due to a |
| Turbine Trip from a Generator Trip and Lockout. The initiating event for |
| the scram is not presently known at this time but it is believed to be a |
| problem with the Main Power Transformer (MPT) B. The Sudden Pressure MPT B |
| alarm came simultaneously with the reactor scram. The Sudden Pressure MPT B |
| alarm is brought in by the Sudden Pressure Fault Relay, which initiates a |
| Main Generator trip and lockout, which trips the Main Turbine and initiates |
| a reactor scram. |
| |
| The MPT B deluge system initiated, however, there was no physical evidence |
| of any damage to MPT B. After conducting a visual inspection of MPT B, the |
| deluge system was secured. A clearance is being applied to MPT B for |
| investigation. |
| |
| The plant is presently in Mode 3, maintaining reactor pressure within a |
| pressure band of 550 to 650 psig and level between Level 3 and Level 8, |
| which is the normal level band. |
| |
| The plant responded normally on the scram. All rods fully inserted, no ECCS |
| injection occurred and no relief valves lifted. |
| |
| The NRC Resident Inspector and the State were notified. |
| |
| |
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