05000400/FIN-2012003-04
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | The following violation of very low safety significance (Green) was identified by the licensee and is a violation of NRC requirements which meets the criteria of the NRC Enforcement Policy for being dispositioned as an NCV. 10 CFR 20.1501 requires, in part, that each licensee make surveys that are reasonable under the circumstances to evaluate potential radiological hazards. Contrary to this, on June 6, 2012, during restart from refueling outage RFO17, two radiation workers and a HPT entered the reactor bio-shield wall (LHRA) to perform maintenance work near the A Reactor Coolant Pump and encountered radiological conditions that had not been evaluated. The work crew was briefed on radiological conditions in the travel path general areas of 5-20 mrem/hr corresponding to 0 percent reactor power (shutdown). However, immediately prior to entry, reactor power was raised above one percent and fluctuated between approximately 1.1 percent and 1.9 percent during their time inside the RCB. This caused an increase in the travel path general area dose rates inside the bio-shield to approximately 400 mrem/hr and resulted in multiple ED dose rate alarms. The increased dose rates were discovered by the accompanying HPT who briefed the workers in the field that ED alarms may be received upon exiting the bio-shield. This finding was of very low safety significance (Green) because there was no substantial potential for overexposure. This is due to the fact that the workers were accompanied by a HPT, the time spent inside the bio-shield was brief, and dose rates were not sufficiently high enough in the planned travel path which was adhered to by the work crew. The licensee entered the event into their CAP as AR 541773541773 |
| Site: | Harris  |
|---|---|
| Report | IR 05000400/2012003 Section 4OA7 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | NCV: Green |
| cornerstone | Or Safety |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Austin G Kuzo R Musser M Coursey P Lessard A Vargas A Nielson R Kellner |
| INPO aspect | |
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Finding - Harris - IR 05000400/2012003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Harris) @ 2012Q2
Self-Identified List (Harris)
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