05000373/FIN-2013002-02
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Finding | |
|---|---|
| Title | Failure to Perform Radiological Surveys to Ensure Appropriate Control and Access to a High Radiation Area |
| Description | The inspectors identified a finding of very low safety significance and associated non-cited violation of Title 10 of the Code of Federal Regulation (CFR), Part 20, Section 1501, and licensee Technical Specification 5.4.1., Procedures. Specifically, the licensee failed to adequately identify, plan, evaluate, and control the radiological conditions and potential hazards associated with the system flow paths created by the reverse flow flushing of the Unit 2 low pressure core spray (LPCS) in accordance with licensee procedures RP-AA-401, Operational ALARA Planning and Controls, and RP-AA-401-1002, Radiological Risk Management. As an immediate corrective action, the licensee instituted appropriate controls and initiated an apparent cause evaluation of the event. The licensee documented the issue in its corrective action program (CAP) as action report (AR) 1475014. The licensees failure to plan, identify, assess, and control radiological hazards associated with the LPCS reverse flushing was a performance deficiency that was determined to be more than minor, and thus a finding, because, if left uncorrected, it could have led to a more significant safety concern. Specifically, not evaluating the radiological impact and controlling personnel exposures associated with the LPCS flushing resulted in unnecessary and unplanned elevation of ambient radiation fields where workers were present. Transiting radioactive particle(s) during the flush caused unexpected dose rate alarms on electronic dosimeters (EDs) worn by station personnel. The inspectors concluded that the finding was of very low safety significance (Green) using Inspection Manual Chapter 0609, Appendix C, as guidance. This finding had a cross-cutting aspect in the area of human performance, work-control, for failing to appropriately plan work activities when developing the work package and authorizing the work. Specifically, the licensee assumed that the radiological conditions associated with reverse flow flushing of LPCS would have a nominal impact on general area radiation fields in the reactor building and the reactor drywell. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2013002 Section 2RS1 |
| Date counted | Mar 31, 2013 (2013Q1) |
| Type: | NCV: Green |
| cornerstone | Or Safety |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71124.01 |
| Inspectors (proximate) | M Holmberg R Ruiz M Kunowski T Go V Meghani A Shaikh K Carrington S Bell |
| Violation of: | Technical Specification - Procedures Technical Specification 10 CFR 20, Standards for Protection Against Radiation |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - LaSalle - IR 05000373/2013002 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (LaSalle) @ 2013Q1
Self-Identified List (LaSalle)
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