Event Notification Report for April 16, 2003
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
04/15/2003 - 04/16/2003
Power Reactor
Event Number: 39764
Facility: OCONEE
Region: 2 State: SC
Unit: [1] [2] [3]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: RANDY TODD
HQ OPS Officer: ERIC THOMAS
Region: 2 State: SC
Unit: [1] [2] [3]
RX Type: [1] B&W-L-LP,[2] B&W-L-LP,[3] B&W-L-LP
NRC Notified By: RANDY TODD
HQ OPS Officer: ERIC THOMAS
Notification Date: 04/16/2003
Notification Time: 14:14 [ET]
Event Date: 04/16/2003
Event Time: 11:45 [EDT]
Last Update Date: 04/16/2003
Notification Time: 14:14 [ET]
Event Date: 04/16/2003
Event Time: 11:45 [EDT]
Last Update Date: 04/16/2003
Emergency Class: NON EMERGENCY
10 CFR Section:
26.73 - FITNESS FOR DUTY
10 CFR Section:
26.73 - FITNESS FOR DUTY
Person (Organization):
THOMAS DECKER (R2)
THOMAS DECKER (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 2 | N | Y | 100 | Power Operation | 100 | Power Operation |
| 3 | N | Y | 82 | Power Operation | 82 | Power Operation |
FITNESS FOR DUTY
"Event: At 11:45 on April 16, 2003, the Oconee Medical Review Officer notified the affected individual of a confirmed positive test result following a random Fitness For Duty (FFD) screening test. The confirmed positive was for alcohol. The individual being tested is a Supervisor in the Radiation Protection Section.
"Initial Safety Significance: None: There is no reason to believe there has been any adverse consequences from this event. The employee had been in meetings all morning until he reported for the random screening test. This event is not considered to have impacted operation of the plant in any way.
"Corrective Action(s): The immediate action was to place the individual's security badge on FFD hold, which will deny access to the protected area. Also, the individual was referred for immediate assessment by the Employee Assistance Program counselor, who will determine the extent of additional actions."
The licensee notified the NRC Resident Inspector.
"Event: At 11:45 on April 16, 2003, the Oconee Medical Review Officer notified the affected individual of a confirmed positive test result following a random Fitness For Duty (FFD) screening test. The confirmed positive was for alcohol. The individual being tested is a Supervisor in the Radiation Protection Section.
"Initial Safety Significance: None: There is no reason to believe there has been any adverse consequences from this event. The employee had been in meetings all morning until he reported for the random screening test. This event is not considered to have impacted operation of the plant in any way.
"Corrective Action(s): The immediate action was to place the individual's security badge on FFD hold, which will deny access to the protected area. Also, the individual was referred for immediate assessment by the Employee Assistance Program counselor, who will determine the extent of additional actions."
The licensee notified the NRC Resident Inspector.
Power Reactor
Event Number: 39765
Facility: QUAD CITIES
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: MIKE WAGNER
HQ OPS Officer: ERIC THOMAS
Region: 3 State: IL
Unit: [] [2] []
RX Type: [1] GE-3,[2] GE-3
NRC Notified By: MIKE WAGNER
HQ OPS Officer: ERIC THOMAS
Notification Date: 04/16/2003
Notification Time: 15:46 [ET]
Event Date: 04/16/2003
Event Time: 13:59 [CDT]
Last Update Date: 04/16/2003
Notification Time: 15:46 [ET]
Event Date: 04/16/2003
Event Time: 13:59 [CDT]
Last Update Date: 04/16/2003
Emergency Class: ALERT
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
10 CFR Section:
50.72(a) (1) (i) - EMERGENCY DECLARED
Person (Organization):
THOMAS KOZAK (R3)
BOB DENNIG (NRR)
CLAUDE JOHNSON (R4)
GILL (DHS)
GARY BELCHER (FEMA)
THOMAS KOZAK (R3)
BOB DENNIG (NRR)
CLAUDE JOHNSON (R4)
GILL (DHS)
GARY BELCHER (FEMA)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | N | Y | 100 | Power Operation | 0 | Hot Shutdown |
ALERT DECLARED
"At 1359 CDT, Quad Cities declared and ALERT condition on Unit 2. This ALERT was declared due to a stuck open [power operated] relief valve (3B PORV). A manual scram was initiated [at 1337 CDT]. Priorities include actions to close the 3B relief valve and to maximize Torus cooling. Note that the ALERT was declared due to condition FA1 (relief valve stuck open and Torus temperature."
The reactor was scrammed due to a 95 deg F Torus temperature. All rods fully inserted on the scram. The Torus temperature peaked at 118 degrees F, and then started to decrease due to Torus cooling. The tech spec limit on Torus temperature is 110 deg F. Cooldown rate exceeded 100 deg F per hour, and all MSIVs were closed to limit the cooldown rate.
The NRC Region III Incident response center was fully staffed at 1415 CDT. The NRC entered Monitoring mode at 1435 CDT, with Region III in the lead.
* * * SUMMARY AT 1600 CDT ON 4/16/03 FROM DAVID WASNIACK (EXELON) TO NRC STAFF * * *
Torus temperature now <110 deg F. Expect to be in Mode IV by 1900 CDT. In order to de-inert the Torus, must have Torus temperature <95 deg F, and have shutdown cooling supplied to the core. Anticipate 15-16 hours before the drywell can be accessed to attempt to manually shut the valve.
The licensee has attempted to close the PORV from the control room via several means (switch and pulling control power fuses) and been unsuccessful.
* * * SUMMARY AT 1715 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
The licensee is continuing plant and Torus cooldown, and anticipates terminating the ALERT when the plant is in Mode 4, at approximately 1900 CDT. Suspected cause of the PORV lifting is a failed pilot.
* * * SUMMARY AT 2130 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
Shutdown cooling was established at 2104 CDT. Current temperature 275 deg F, cooldown rate is 80 degrees per hour. At 2237 CDT, the licensee declared that Unit 2 was in Mode 4.
* * * SUMMARY AT 2245 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
The NRC exited Monitoring mode at 2255 CDT.
* * * SUMMARY AT 2340 CDT ON 4/16/03 FROM RALPH BASSETT TO NRC STAFF * * *
The licensee terminated the alert at 2251 CDT. The plant is in Cold Shutdown Mode 4 with the RCS depressurized and less than 212 deg F. Notified DHS (Stucky), FEMA (Saunder), DOE (Rick) , USDA (L. Thomas), HHS (M. Miller), EPA (Flach), NRR EO (S. Black), HQ PAO (W. Beecher), R3 (S. Reynolds).
"At 1359 CDT, Quad Cities declared and ALERT condition on Unit 2. This ALERT was declared due to a stuck open [power operated] relief valve (3B PORV). A manual scram was initiated [at 1337 CDT]. Priorities include actions to close the 3B relief valve and to maximize Torus cooling. Note that the ALERT was declared due to condition FA1 (relief valve stuck open and Torus temperature."
The reactor was scrammed due to a 95 deg F Torus temperature. All rods fully inserted on the scram. The Torus temperature peaked at 118 degrees F, and then started to decrease due to Torus cooling. The tech spec limit on Torus temperature is 110 deg F. Cooldown rate exceeded 100 deg F per hour, and all MSIVs were closed to limit the cooldown rate.
The NRC Region III Incident response center was fully staffed at 1415 CDT. The NRC entered Monitoring mode at 1435 CDT, with Region III in the lead.
* * * SUMMARY AT 1600 CDT ON 4/16/03 FROM DAVID WASNIACK (EXELON) TO NRC STAFF * * *
Torus temperature now <110 deg F. Expect to be in Mode IV by 1900 CDT. In order to de-inert the Torus, must have Torus temperature <95 deg F, and have shutdown cooling supplied to the core. Anticipate 15-16 hours before the drywell can be accessed to attempt to manually shut the valve.
The licensee has attempted to close the PORV from the control room via several means (switch and pulling control power fuses) and been unsuccessful.
* * * SUMMARY AT 1715 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
The licensee is continuing plant and Torus cooldown, and anticipates terminating the ALERT when the plant is in Mode 4, at approximately 1900 CDT. Suspected cause of the PORV lifting is a failed pilot.
* * * SUMMARY AT 2130 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
Shutdown cooling was established at 2104 CDT. Current temperature 275 deg F, cooldown rate is 80 degrees per hour. At 2237 CDT, the licensee declared that Unit 2 was in Mode 4.
* * * SUMMARY AT 2245 CDT ON 4/16/03 FROM DAVID WASNIACK TO NRC STAFF * * *
The NRC exited Monitoring mode at 2255 CDT.
* * * SUMMARY AT 2340 CDT ON 4/16/03 FROM RALPH BASSETT TO NRC STAFF * * *
The licensee terminated the alert at 2251 CDT. The plant is in Cold Shutdown Mode 4 with the RCS depressurized and less than 212 deg F. Notified DHS (Stucky), FEMA (Saunder), DOE (Rick) , USDA (L. Thomas), HHS (M. Miller), EPA (Flach), NRR EO (S. Black), HQ PAO (W. Beecher), R3 (S. Reynolds).