Event Notification Report for February 02, 2002
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/01/2002 - 02/02/2002
EVENT NUMBERS
38666
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
!!!!! THIS EVENT HAS BEEN RETRACTED !!!!!
Power Reactor
Event Number: 38666
Facility: VOGTLE
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: STEVE DOUGLAS
HQ OPS Officer: LEIGH TROCINE
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] W-4-LP,[2] W-4-LP
NRC Notified By: STEVE DOUGLAS
HQ OPS Officer: LEIGH TROCINE
Notification Date: 02/02/2002
Notification Time: 04:47 [ET]
Event Date: 02/02/2002
Event Time: 02:42 [EST]
Last Update Date: 02/06/2002
Notification Time: 04:47 [ET]
Event Date: 02/02/2002
Event Time: 02:42 [EST]
Last Update Date: 02/06/2002
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
10 CFR Section:
50.72(b)(3)(iv)(A) - VALID SPECIF SYS ACTUATION
Person (Organization):
MIKE ERNSTES (R2)
MIKE ERNSTES (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 |
AUTOMATIC EMERGENCY DIESEL GENERATOR START FOR UNKNOWN REASONS
The following text is a portion of a facsimile received from the licensee:
"Vogtle Electric Generating Plant Unit 1 experienced an emergency start of the 1A emergency diesel generator at 0242 on 02/02/2002. The diesel generator emergency started without a safety injection or [loss of offsite power (LOSP)] signal present. Operators attempted to reset the emergency start signal without success. The diesel started and ran unloaded for approximately 1 hour and then was emergency stopped by control room operators and declared inoperable. An investigation for the cause for the start is underway at this time."
The licensee stated that there were no maintenance or surveillance activities ongoing at the time of the event. The licensee also stated that there was no one present in the emergency diesel generator room at the time of the event.
The licensee notified the NRC resident inspector.
* * * UPDATE ON 2/5/02 @ 1103 BY WILLIAMS TO GOULD * * * RETRACTION
An investigation has determined that the event represents an invalid ESF actuation which is not reportable per 10 CFR 50.72. The local EDG manual emergency start handswitch leaked control air pressure resulting in the pressurization of two sensors which generated an emergency start condition. Since a valid ESF actuation signal was not generated by the Solid State Protection System or the ESF actuation system sequencer, the subsequent EDG start represents an invalid actuation of an ESF system.
The NCR Resident Inspector was notified.
Reg 2 RDO (Fredrickson) was notified
The following text is a portion of a facsimile received from the licensee:
"Vogtle Electric Generating Plant Unit 1 experienced an emergency start of the 1A emergency diesel generator at 0242 on 02/02/2002. The diesel generator emergency started without a safety injection or [loss of offsite power (LOSP)] signal present. Operators attempted to reset the emergency start signal without success. The diesel started and ran unloaded for approximately 1 hour and then was emergency stopped by control room operators and declared inoperable. An investigation for the cause for the start is underway at this time."
The licensee stated that there were no maintenance or surveillance activities ongoing at the time of the event. The licensee also stated that there was no one present in the emergency diesel generator room at the time of the event.
The licensee notified the NRC resident inspector.
* * * UPDATE ON 2/5/02 @ 1103 BY WILLIAMS TO GOULD * * * RETRACTION
An investigation has determined that the event represents an invalid ESF actuation which is not reportable per 10 CFR 50.72. The local EDG manual emergency start handswitch leaked control air pressure resulting in the pressurization of two sensors which generated an emergency start condition. Since a valid ESF actuation signal was not generated by the Solid State Protection System or the ESF actuation system sequencer, the subsequent EDG start represents an invalid actuation of an ESF system.
The NCR Resident Inspector was notified.
Reg 2 RDO (Fredrickson) was notified