05000244/FIN-2015002-02
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Finding | |
|---|---|
| Title | Inadequate Procedure Implementation Results in Inadvertent Entry into 72 Hour Technical Specification Action Statement |
| Description | A self-revealing Green NCV of Technical Specification (TS) 5.4.1, Procedures, was identified for inadequate implementation of procedure M-71.4, Removal and/or Installation of Modules within Defeated or Out-of-Service Instrument Loops. Specifically, while performing maintenance procedures for the sodium hydroxide (NaOH) flow loop power supply replacement, Exelon inadvertently caused a short in electrical circuitry that resulted in an automatic switch of instrument bus C from inverter B to its backup power supply; this caused an entry into a 72-hour TS action statement and actuation of the control room emergency air treatment system (CREATS). Corrective actions included entering this issue into the CAP. This finding is more than minor because it is associated with the Mitigating Systems cornerstone and affected the cornerstone objective to ensure the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. In accordance with IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings At-Power, Exhibit 2, the inspectors determined that the finding is of very low significance (Green), because the finding was not a deficiency affecting the design or qualification of a mitigating structure, system, and component (SSC); did not represent a loss of system and/or function; and did not represent an actual loss of function of at least a single train. Additionally, the finding has a cross-cutting aspect in the area of Human Performance, Avoid Complacency, because Exelon did not recognize and plan for the possibility of mistakes, latent issues, and inherent risk, even while expecting successful outcomes. |
| Site: | Ginna  |
|---|---|
| Report | IR 05000244/2015002 Section 1R12 |
| Date counted | Jun 30, 2015 (2015Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Self-revealing |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | A Siwy D Dodson D Render D Schroeder E Burket N Perry S Horvitz |
| Violation of: | Technical Specification - Procedures Technical Specification |
| CCA | H.12, Avoid Complacency |
| INPO aspect | QA.4 |
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Finding - Ginna - IR 05000244/2015002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Ginna) @ 2015Q2
Self-Identified List (Ginna)
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