05000247/FIN-2012002-01
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Finding | |
|---|---|
| Title | Inadequate Corrective Actions for Clogged Drains in teh 480 Volt Switchgear Room |
| Description | The inspectors identified a finding of very low safety significance for Entergy staff not following Entergy Procedure EN-LI-102, Corrective Action Program. Specifically, between initial plant startup and January 17, 2012, Entergy staff did not follow Procedure EN-LI-102, to classify equipment failures of the drains in the 480 volt switchgear room as repetitive such that an apparent cause would have been performed, and corrective actions developed to address the blocked drain. This resulted in instances of the drains in the 480 volt switchgear room being clogged. Entergy personnel performed an apparent cause evaluation (ACE), cleaned out the drains, and developed a preventative maintenance (PM) schedule to keep the drains cleared. Entergy personnel entered this issue into the CAP as CR-IP2-2011-4324. This finding is more than minor because it is associated with the equipment performance attribute of the Initiating Events Cornerstone and affects the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during power operations. Specifically, water intrusion into the room with clogged drains could impact all four trains of 480 volt switchgear. Using IMC 0609.04, "Phase 1 Initial Screening and Characterization of Findings," the inspectors determine
this finding was of very low safety significance (Green) using SDP Phases 1 and 3. Phase 1 screened this Initiating Event Cornerstone finding to Phase 3 because the finding increased the likelihood of a flood causing a loss of offsite power (LOOP) and station blackout (SBO), which would require use of the alternate safe shutdown system (ASSS). A Region I Senior Reactor Analyst (SRA) conducted the Phase 3 analysis and determined the finding was of very low safety significance. The finding has a crosscutting aspect in the area of problem identification and resolution associated with the CAP attribute because Entergy personnel did not periodically trend and assesses information from the CAP and other assessments in the aggregate to identify programmatic and common cause problems associated with the drains. P.1(b) per IMC 0310] |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2012002 Section 1R12 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | E Gray J Furia J Laughlin M Catts M Gray M Jennerich O Ayegbiso S Mccarver |
| INPO aspect | |
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Finding - Indian Point - IR 05000247/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2012Q1
Self-Identified List (Indian Point)
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