05000272/FIN-2015004-04
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Finding | |
|---|---|
| Title | Inadequate Post Maintenance Testing on OTDT Channels |
| Description | A self-revealing Green NCV of Title 10 of the Code of Federal Regulations (10 CFR) 50, Appendix B, Criterion XI, Test Control, and associated NCV of TS 3.3.1.1 was identified, with two examples, for not ensuring that all testing required to demonstrate that nuclear instrumentation (NI) would perform satisfactorily in service was identified and performed. As a result, inoperable Over-Temperature Delta-Temperature (OTDT) channels were not placed in the tripped condition within the timeframe required by TS limiting condition for operation (LCO) 3.3.1.1, on January 20 and April 21, 2015, respectively. PSEG entered this issue in their CAP and developed corrective actions to provide improved retest requirements for all maintenance performed on the NI system. The inspectors determined that the failure to ensure the NI channels were operable upon restoration to service was a performance deficiency. The performance deficiency is more than minor because it is associated with the equipment performance attribute of the Mitigating Systems cornerstone and affected its cornerstone objective to ensure the availability of systems that respond to initiating events to prevent undesirable consequences. Inspectors evaluated the findings significance in accordance with IMC 0609, Attachment 4 and Appendix A, and determined that the finding did not affect a single reactor protection system (RPS) trip signal to initiate a reactor scram and the function of other redundant trips or diverse methods of reactor shutdown, did not involve control manipulations that unintentionally added positive reactivity and did not result in a mismanagement of reactivity by operator(s). Therefore, the finding screened to Green, or very low safety significance. The finding has a cross-cutting aspect in the area of Human Performance, Documentation, because PSEG did not ensure that plant activities were effectively governed by comprehensive, high-quality, programs, processes and procedures. Specifically, subsequent to completion of calibration and replacement work and post-maintenance testing (PMT) per Instrumentation and Controls (I&C) surveillance procedures, work packages did not adequately address or specify activities related to verifying potentially affected RPS indications. |
| Site: | Salem  |
|---|---|
| Report | IR 05000272/2015004 Section 4OA2 |
| Date counted | Dec 31, 2015 (2015Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71152 |
| Inspectors (proximate) | A Defrancisco A Siwy A Ziedonis C Lally F Bower J Furia P Finney R Barkley R Nimitz S Chaudhary T O'Hara |
| Violation of: | Technical Specification - Procedures Technical Specification 10 CFR 50 Appendix B Criterion XI |
| CCA | H.7, Documentation |
| INPO aspect | WP.3 |
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Finding - Salem - IR 05000272/2015004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Salem) @ 2015Q4
Self-Identified List (Salem)
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