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A finding of very low safety significance … A finding of very low safety significance and associated NCV of Technical Specification 5.4, Procedures, was self-revealed on March 14, 2015, for the licensees failure to implement a clearance order in accordance with procedure OPAA109101, Clearance and Tagging, for electrical maintenance on Bus 12, Cubicle 9. The clearance order failed to provide a safe zone of protection for all physical work to be performed under the clearance order or for required equipment protection. Immediate corrective actions included stopping all electrical work and verifying electrical work boundaries prior to re-commencing work. The licensee documented the issue in the corrective action program (CAP) under Issue Report 2468511. The finding was determined to be more than minor because, if left uncorrected, it could become a more significant safety concern. Specifically, the failure to properly control and de-energize equipment prior to performing maintenance could have an impact on safety-related equipment (including equipment damage and potential loss of off-site power). The inspectors determined the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Attachment 0609.04, Initial Characterization of Findings. Because the finding impacted the Initiating Events Cornerstone and Unit 1 was shut down at the time of the event, the inspectors determined the finding could be further evaluated using IMC 0609, Appendix G, Attachment 1, Shutdown Operations Significance Determination Process Phase 1 Initial Screening and Characterization of Findings. The inspectors answered No to all questions in Exhibit 2 of IMC 0609, Appendix G, Attachment 1 and determined the finding was of very low safety significance (Green). This finding has a cross-cutting aspect in the area of Human Performance, Work Management because the licensee did not implement a process of planning, controlling, and executing work activities such that nuclear safety is the overriding priority. Specifically, the licensee failed to plan, control, and execute a clearance order that provided a safe zone of protection for all physical work to be performed under the clearance order or for required equipment protection during maintenance on Bus 12, Cubicle 9 (H.5).ng maintenance on Bus 12, Cubicle 9 (H.5).

Discovered date

23:59:59, 30 June 2015 +

Docket

05000254 + and 05000265 +

Event date

23:59:59, 30 June 2015 +

Finding integer

2 +

Finding type

Non-cited violation +

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INPO aspect

WP.1 +

Identified by

Self-revealing +

Inspection Manual Chapter

NRC Inspection Manual 0609 + and NRC Inspection Manual 0609, Appendix G +

Inspection procedure

IP 71152, Problem Identification and Resolution (PI&R) +

Inspection report

IR 05000254/2015002 +

Inspector

G O'Dwyer +, C Mathews +, Karla Stoedter +, Charles Phillips +, Kenya Carrington +, Robert Murray + and Matthew Mitchell +

Issue report

AR 02468511 +

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04:22:42, 22 February 2018 +

Person