Event Notification Report for February 18, 2012
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
02/17/2012 - 02/18/2012
EVENT NUMBERS
47677
Power Reactor
Event Number: 47677
Facility: HATCH
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DANIEL A. KOMM
HQ OPS Officer: STEVE SANDIN
Region: 2 State: GA
Unit: [1] [] []
RX Type: [1] GE-4,[2] GE-4
NRC Notified By: DANIEL A. KOMM
HQ OPS Officer: STEVE SANDIN
Notification Date: 02/18/2012
Notification Time: 16:25 [ET]
Event Date: 02/18/2012
Event Time: 08:36 [EST]
Last Update Date: 02/19/2012
Notification Time: 16:25 [ET]
Event Date: 02/18/2012
Event Time: 08:36 [EST]
Last Update Date: 02/19/2012
Emergency Class: NON EMERGENCY
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
10 CFR Section:
50.72(b)(3)(xiii) - LOSS COMM/ASMT/RESPONSE
Person (Organization):
BINOY DESAI (R2DO)
BINOY DESAI (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | N | 0 | Refueling | 0 | Refueling |
LOSS OF SPDS AND ERDS DUE TO HARD DRIVE FAILURE
"At approximately 0836 hours [EST] on Feb. 18, 2012, the Unit 1 Safety Parameter Display System (SPDS) became non-functional, and therefore was not available in the Control Room or in the emergency response facilities. Efforts are underway to restore the system. The loss of SPDS and ERDS is being reported in accordance with 10 CFR 50.72(b)(3)(xiii). Troubleshooting efforts continue to restore the SPDS. The station remains capable of performing dose assessment using manual inputs per site procedures. The Control Room also continues to have the capability to retrieve plant data inputs to assess plant conditions and perform core damage assessments.
"The NRC Senior Resident Inspector has been notified."
* * * UPDATE FROM DANIEL KOMM TO JOE O'HARA AT 0751 ON 2/19/12 * * *
"As of 0715 EST on 2/19/12, the Hatch Unit 1 SPDS and ERDS systems have been returned to functional status and are providing plant information. The ERDS system is capable of transmitting data to the NRC if required during an event."
The NRC Resident Inspector has been notified.
Notified R2DO(Desai)
"At approximately 0836 hours [EST] on Feb. 18, 2012, the Unit 1 Safety Parameter Display System (SPDS) became non-functional, and therefore was not available in the Control Room or in the emergency response facilities. Efforts are underway to restore the system. The loss of SPDS and ERDS is being reported in accordance with 10 CFR 50.72(b)(3)(xiii). Troubleshooting efforts continue to restore the SPDS. The station remains capable of performing dose assessment using manual inputs per site procedures. The Control Room also continues to have the capability to retrieve plant data inputs to assess plant conditions and perform core damage assessments.
"The NRC Senior Resident Inspector has been notified."
* * * UPDATE FROM DANIEL KOMM TO JOE O'HARA AT 0751 ON 2/19/12 * * *
"As of 0715 EST on 2/19/12, the Hatch Unit 1 SPDS and ERDS systems have been returned to functional status and are providing plant information. The ERDS system is capable of transmitting data to the NRC if required during an event."
The NRC Resident Inspector has been notified.
Notified R2DO(Desai)