Event Notification Report for March 09, 2012
U.S. Nuclear Regulatory Commission
Operations Center
EVENT REPORTS FOR
03/08/2012 - 03/09/2012
EVENT NUMBERS
47729
Power Reactor
Event Number: 47729
Facility: HARRIS
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: NEIL MACARTHUR
HQ OPS Officer: MARK ABRAMOVITZ
Region: 2 State: NC
Unit: [1] [] []
RX Type: [1] W-3-LP
NRC Notified By: NEIL MACARTHUR
HQ OPS Officer: MARK ABRAMOVITZ
Notification Date: 03/09/2012
Notification Time: 19:48 [ET]
Event Date: 03/09/2012
Event Time: 14:00 [EST]
Last Update Date: 03/09/2012
Notification Time: 19:48 [ET]
Event Date: 03/09/2012
Event Time: 14:00 [EST]
Last Update Date: 03/09/2012
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):
GEORGE HOPPER (R2DO)
GEORGE HOPPER (R2DO)
| Unit | SCRAM Code | RX Crit | Initial PWR | Initial RX Mode | Current PWR | Current RX Mode |
|---|---|---|---|---|---|---|
| 1 | N | Y | 100 | Power Operation | 100 | Power Operation |
FAILURE OF A TECHNICAL SUPPORT CENTER AIR HANDLING UNIT
"At approximately 14:00 on March 9, 2012, with the Harris Nuclear Plant operating at 100% power in mode 1, Air Handler 17 was discovered not operating. Air Handler 17 provides ventilation supporting environmental habitability to the Technical Support Center (TSC) to keep ambient temperatures comfortable for personnel and to ensure communications and assessment equipment remain functional. This degrades the heating and cooling capacity of the TSC by approximately a third. Due to the cool weather in the forecast, the remaining cooling systems will be operating more efficiently than they would in the hot summer months, which mitigates the impact of the degraded ventilation system. The system will be repaired expeditiously. The cause of the equipment failure is not yet known but will be investigated in the site corrective action program. This report is being made in accordance with 10 CFR 50.72, criterion (b)(3)(xiii) as a condition that may impair the functionality of an Emergency Response Facility. The plant continues to operate at 100%. Other equipment functioned as expected. The on call Emergency Response Manager and Site Emergency Coordinator (TSC) have been notified and the alternate TSC is available."
The licensee notified the NRC Resident Inspector.
"At approximately 14:00 on March 9, 2012, with the Harris Nuclear Plant operating at 100% power in mode 1, Air Handler 17 was discovered not operating. Air Handler 17 provides ventilation supporting environmental habitability to the Technical Support Center (TSC) to keep ambient temperatures comfortable for personnel and to ensure communications and assessment equipment remain functional. This degrades the heating and cooling capacity of the TSC by approximately a third. Due to the cool weather in the forecast, the remaining cooling systems will be operating more efficiently than they would in the hot summer months, which mitigates the impact of the degraded ventilation system. The system will be repaired expeditiously. The cause of the equipment failure is not yet known but will be investigated in the site corrective action program. This report is being made in accordance with 10 CFR 50.72, criterion (b)(3)(xiii) as a condition that may impair the functionality of an Emergency Response Facility. The plant continues to operate at 100%. Other equipment functioned as expected. The on call Emergency Response Manager and Site Emergency Coordinator (TSC) have been notified and the alternate TSC is available."
The licensee notified the NRC Resident Inspector.