05000247/FIN-2009005-03
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Finding | |
|---|---|
| Title | Partial Loss of Control Room Indication during Nl 41 Recorder Replacement |
| Description | A self-revealing non-cited violation (NCV) of very low safety significance of 10 CFR 50, Appendix B Criterion V Instructions, Procedures, and Drawings, was identified because Entergy personnel did not perform work regarding replacement of a control room digital recorder. As a result, during performance of the work, personnel inadvertently shorted a live wire resulting in a partial loss of control room indications and alarms related to the safety relief valve acoustic monitor flow indications, low range steam and feed flow indications, and inadvertent control rod movement. Entergy personnel reset the breakers to restore control room indications and entered this issue into the corrective action program as CR-IP2-200904860. Personnel subsequently replaced the digital recorder with the circuit breaker opened to eliminate the electrical hazard. The finding was more than minor because it was associated with the human performance attribute of the Mitigating Systems cornerstone and impacted the cornerstone objective of ensuring the availability of systems that respond to initiating events to prevent undesirable consequences. Specifically, the grounded recorder power supply resulted in a loss of control room indications and alarms that could have impacted operations response to an event. The inspectors evaluated this finding using Phase 1 of IMC 0609, Appendix A, Significance Determination of Reactor Inspection Findings for At-Power Situations, and determined it to be of very low safety significance (Green). The inspectors determined that this finding had a cross-cutting aspect in the area of Human Performance related to work practices. Specifically, Entergy personnel did not follow procedures during the replacement of a control room digital recorder. |
| Site: | Indian Point  |
|---|---|
| Report | IR 05000247/2009005 Section 4OA3 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71153 |
| Inspectors (proximate) | C Crisden D Orr G Newman J Commiskey J Schoppy M Gray M Halter P Cataldo T Fish |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Indian Point - IR 05000247/2009005 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Indian Point) @ 2009Q4
Self-Identified List (Indian Point)
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