05000272/FIN-2011004-02
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Finding | |
|---|---|
| Title | Failure to Evaluate Corrective Action Options for RCP Motor Cables |
| Description | A self-revealing finding of very low safety significance was identified on June 26, 2011, as Salem Unit 2 tripped following a trip of the 23 reactor coolant pump (RCP) due to a ground fault inside the 23 RCP motor junction box. PSEG determined that the cause of the ground fault was RCP motor cable jacket cracking that was first identified in 2005. PSEG entered this event into the CAP as notification 20515977. The performance deficiency was more than minor because it was associated with the equipment performance attribute of the Initiating Events cornerstone, and it adversely affected the cornerstone objective to limit the likelihood of events that upset plant stability and challenge critical safety functions during power operations. Specifically, action from notifications in January 2006 for the engineering department to determine various options to address RCP motor lead jacket cracking including an evaluation on whether to replace the cables during the June 2008 refueling outage (RFO) was not completed prior to the June 2008 motor replacement and continued to be an open action up to the point of the June 2011 RCP cable failure and reactor trip. The finding was evaluated under IMC 0609, Attachment 4, Phase 1 - Initial Screening and Characterization of Findings. The inspectors determined that the finding is of very low safety significance because it did not contribute to both the likelihood of a reactor trip and the likelihood that mitigation equipment or functions would not be available. This finding had a cross-cutting aspect in the area of problem identification and resolution, corrective action program, because PSEG did not take appropriate corrective action to address safety issues and adverse trends in a timely manner, commensurate with their safety significance and complexity. Specifically, PSEG did not ensure that the CAP assignment for the engineering department to evaluate longterm corrective action options for the RCP motor lead cables were completed timely and effectively in accordance with their CAP procedure. |
| Site: | Salem  |
|---|---|
| Report | IR 05000272/2011004 Section 1R20 |
| Date counted | Sep 30, 2011 (2011Q3) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.2 |
| Inspectors (proximate) | A Burritt A Turilin C Douglas D Schroeder E Gray J Furia P Mckenna |
| CCA | P.3, Resolution |
| INPO aspect | PI.3 |
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Finding - Salem - IR 05000272/2011004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Salem) @ 2011Q3
Self-Identified List (Salem)
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