Event Notification Report for July 18, 2001
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/17/2001 - 07/18/2001
Power Reactor
Event Number: 38148
Facility: COMANCHE PEAK
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: RAUL MARTINEZ
HQ OPS Officer: STEVE SANDIN
Region: 4 State: TX
Unit: [] [2] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: RAUL MARTINEZ
HQ OPS Officer: STEVE SANDIN
Notification Date: 07/18/2001
Notification Time: 10:42 [ET]
Event Date: 07/18/2001
Event Time: 07:59 [CDT]
Last Update Date: 07/18/2001
Notification Time: 10:42 [ET]
Event Date: 07/18/2001
Event Time: 07:59 [CDT]
Last Update Date: 07/18/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL 50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
WILLIAM JOHNSON (R4)
WILLIAM JOHNSON (R4)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Standby |
AUTOMATIC REACTOR TRIP ON TURBINE TRIP DURING RESTORATION OF AMSAC ALARM
"During restoration of AMSAC [Accident Mitigation System Actuation Circuitry] to restore a trouble alarm, a spurious turbine trip signal was generated, causing a reactor trip from 100% power. AFW [Auxiliary Feedwater] actuation followed the reactor trip and the MSIV's [Main Steam Isolation Vales] were closed for temperature control."
All control rods fully inserted. Unit 2 is currently stable at normal operating pressure and temperature (NOP, NOT) using the Atmospheric Dumps and both motor-driven AFW pumps for decay heat removal. There is no known primary-to-secondary tube leakage and samples confirm less than minimum detectable activity (<MDA). Operators are in the process of re-opening the MSIV's to place the main condenser back in service. All electrical buses remained energized throughout the event.
The licensee notified the NRC resident inspector and does not plan a press release.
"During restoration of AMSAC [Accident Mitigation System Actuation Circuitry] to restore a trouble alarm, a spurious turbine trip signal was generated, causing a reactor trip from 100% power. AFW [Auxiliary Feedwater] actuation followed the reactor trip and the MSIV's [Main Steam Isolation Vales] were closed for temperature control."
All control rods fully inserted. Unit 2 is currently stable at normal operating pressure and temperature (NOP, NOT) using the Atmospheric Dumps and both motor-driven AFW pumps for decay heat removal. There is no known primary-to-secondary tube leakage and samples confirm less than minimum detectable activity (<MDA). Operators are in the process of re-opening the MSIV's to place the main condenser back in service. All electrical buses remained energized throughout the event.
The licensee notified the NRC resident inspector and does not plan a press release.
General Information or Other
Event Number: 38150
Rep Org: MATHY CONSTRUCTION CO
Licensee: MATHY CONSTRUCTION CO
Region: 3
City: ONALASKA State: WI
County:
License #: 4818722-01
Agreement: N
Docket:
NRC Notified By: DUKATZ
HQ OPS Officer: CHAUNCEY GOULD
Licensee: MATHY CONSTRUCTION CO
Region: 3
City: ONALASKA State: WI
County:
License #: 4818722-01
Agreement: N
Docket:
NRC Notified By: DUKATZ
HQ OPS Officer: CHAUNCEY GOULD
Notification Date: 07/18/2001
Notification Time: 15:11 [ET]
Event Date: 07/18/2001
Event Time: 12:00 [CDT]
Last Update Date: 07/18/2001
Notification Time: 15:11 [ET]
Event Date: 07/18/2001
Event Time: 12:00 [CDT]
Last Update Date: 07/18/2001
Emergency Class: NON EMERGENCY
10 CFR Section:
20.2201(a)(1)(ii) - LOST/STOLEN LNM>10X
10 CFR Section:
20.2201(a)(1)(ii) - LOST/STOLEN LNM>10X
Person (Organization):
BRUCE JORGENSEN (R3)
SUSAN FRANT (NMSS)
BRUCE JORGENSEN (R3)
SUSAN FRANT (NMSS)
THE LICENSEE REPORTED THEIR TROXLER GAUGE WAS STOLEN
The licensee reported that a Troxler moisture density gauge model 3440 serial #26689 containing 8 millicuries of Cs and 40 millicuries of Am/Be was stolen from the back of a truck in Barabo, WI. This occurred within 5-10 minutes when the driver entered a store to use the bathroom and buy some ice. The licensee will notify the local police and the State.
* * * UPDATE ON 7/18/01 @ 1553 FROM DUKATZ TO GOULD * * *
The local police contacted the licensee @ 1550 to inform them the gauge was located. There was no damage and the gauge was intact. Licensee has sent a technician to retrieve the gauge.
Regon 3 (Darrel Wiedeman) and NMSS (Susan Frant) have been informed.
The licensee reported that a Troxler moisture density gauge model 3440 serial #26689 containing 8 millicuries of Cs and 40 millicuries of Am/Be was stolen from the back of a truck in Barabo, WI. This occurred within 5-10 minutes when the driver entered a store to use the bathroom and buy some ice. The licensee will notify the local police and the State.
* * * UPDATE ON 7/18/01 @ 1553 FROM DUKATZ TO GOULD * * *
The local police contacted the licensee @ 1550 to inform them the gauge was located. There was no damage and the gauge was intact. Licensee has sent a technician to retrieve the gauge.
Regon 3 (Darrel Wiedeman) and NMSS (Susan Frant) have been informed.