At 0656 on 10/15/2012, the Unit 3 Control Room received indication that the area radiation monitor,
3RlA-15 for Unit 3 High Pressure Injection (
HPI) Pump Room had faulted.
3RIA-15 is used in the Oconee
Emergency Plan Enclosure 4.3 (Abnormal Rad Levels Radiological Effluent) and Enclosure 4.4 (Loss of Shutdown Functions) for declaration of
NOUE and/or Alert. Although the loss of a single area radiation monitor is not generally reportable, the loss of
3RIA-15 is conservatively considered as a major loss of emergency assessment capability pending further review of the Oconee
Emergency Plan. The loss of
3RIA-15 is being reported per
10 CFR 50.72(b)(3)(xiii).
Initial Safety Significance: None. There is no event in progress and the station has implemented an alternate means to monitor area radiation for the Unit 3 HPI Room.
Corrective Action(s): Repair and restoration of the affected radiation monitor has been initiated as a high priority work request. An alternate means to monitor Unit 3 HPI Pump Room has been established. The station will notify the appropriate Emergency Response Organization personnel of the loss of 3RIA-15.
Corrective actions are in place to review station procedures/processes for improvement relative to reporting requirements of 10 CFR 50.72(b)(3)(xiii).
The NRC Resident Inspector has been informed.
