Event Notification Report for July 27, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
07/26/2002 - 07/27/2002
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 39099
Facility: SUMMER
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: JIM TURKETT
HQ OPS Officer: FANGIE JONES
Region: 2 State: SC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: JIM TURKETT
HQ OPS Officer: FANGIE JONES
Notification Date: 07/27/2002
Notification Time: 13:36 [ET]
Event Date: 07/27/2002
Event Time: 01:10 [EDT]
Last Update Date: 08/01/2002
Notification Time: 13:36 [ET]
Event Date: 07/27/2002
Event Time: 01:10 [EDT]
Last Update Date: 08/01/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
10 CFR Section:
Person (Organization):
MARK LESSER (R2)
MARK LESSER (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 |
INFORMATION CALL THAT INVOLVES LOCAL AUTHORITIES AND POSSIBLE MEDIA ATTENTION
The licensee's security personnel discovered a stub end of a hand rolled cigarette of questionable material in the room above diesel generator 'A.' It appeared old and had no odor. Fairfield County Sheriff's Department was contacted and they dispatched a unit. They potentially identified the contents as marijuana and took custody of the cigarette. They will submit it to the South Carolina State Law Enforcement Division for analysis. The analysis will take about a week or more and followup notification will be made if needed. This notification was made due to Fairfield County involvement and possible media coverage. There is no impact on plant operation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE ON 8/01/02 @ 1403 BY TURKETT TO GOULD * * * EVENT RETRACTION
The analysis determined that the material found in the hand rolled cigarette was not marijuana, therefore the licensee is retracting this event.
The NRC Resident Inspector will be notified.
The licensee's security personnel discovered a stub end of a hand rolled cigarette of questionable material in the room above diesel generator 'A.' It appeared old and had no odor. Fairfield County Sheriff's Department was contacted and they dispatched a unit. They potentially identified the contents as marijuana and took custody of the cigarette. They will submit it to the South Carolina State Law Enforcement Division for analysis. The analysis will take about a week or more and followup notification will be made if needed. This notification was made due to Fairfield County involvement and possible media coverage. There is no impact on plant operation.
The licensee notified the NRC Resident Inspector.
* * * UPDATE ON 8/01/02 @ 1403 BY TURKETT TO GOULD * * * EVENT RETRACTION
The analysis determined that the material found in the hand rolled cigarette was not marijuana, therefore the licensee is retracting this event.
The NRC Resident Inspector will be notified.
Power Reactor
Event Number: 39100
Facility: BROWNS FERRY
Region: 2 State: AL
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: JOE BENNETT
HQ OPS Officer: FANGIE JONES
Region: 2 State: AL
Unit: [] [2] []
RX Type: [1] GE-4,[2] GE-4,[3] GE-4
NRC Notified By: JOE BENNETT
HQ OPS Officer: FANGIE JONES
Notification Date: 07/27/2002
Notification Time: 15:47 [ET]
Event Date: 07/27/2002
Event Time: 12:27 [CDT]
Last Update Date: 07/27/2002
Notification Time: 15:47 [ET]
Event Date: 07/27/2002
Event Time: 12:27 [CDT]
Last Update Date: 07/27/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
10 CFR Section:
50.72(b)(2)(iv)(B) - RPS ACTUATION - CRITICAL
Person (Organization):
MARK LESSER (R2)
MARK LESSER (R2)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 2 | A/R | Y | 100 | Power Operation | 0 | Hot Shutdown |
AUTOMATIC REACTOR SCRAM ON MAIN GENERATOR LOAD REJECT
"On 7/27/02 at 1227 CDT, Browns Ferry Unit 2 scrammed due to a Main Generator load reject signal, when the Main Generator breaker opened. The breaker trip was caused by a Generator Neutral Overvoltage relay trip. The cause of the Generator Neutral Overvoltage is under investigation. All systems responded as required to the scram signal, no ECCS initiations occurred as a result of the scram signal. As expected, Main Steam Relief Valves (MSRVs) opened due to the high reactor pressure as a result of the Main Turbine/Generator trip."
The licensee is investigating the cause of the trip and will remain in Hot Shutdown until everything is known prior to plant startup.
The licensee informed the NRC Resident Inspector.
"On 7/27/02 at 1227 CDT, Browns Ferry Unit 2 scrammed due to a Main Generator load reject signal, when the Main Generator breaker opened. The breaker trip was caused by a Generator Neutral Overvoltage relay trip. The cause of the Generator Neutral Overvoltage is under investigation. All systems responded as required to the scram signal, no ECCS initiations occurred as a result of the scram signal. As expected, Main Steam Relief Valves (MSRVs) opened due to the high reactor pressure as a result of the Main Turbine/Generator trip."
The licensee is investigating the cause of the trip and will remain in Hot Shutdown until everything is known prior to plant startup.
The licensee informed the NRC Resident Inspector.