05000293/FIN-2015003-01
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Main Control Room Annunciators 10 CFR 50.65(a)(2) Not Met |
| Description | The inspectors identified a Green NCV of Title 10 of the Code of Federal Regulations (10 CFR) 50.65 (a)(2), because Entergy did not adequately demonstrate that the performance of the main control room (MCR) annunciators was effectively controlled through performance of appropriate preventive maintenance. Specifically, Entergy did not identify and properly account for functional failures of the MCR annunciators in February 2015 and May 2015, and did not recognize that the train exceeded its performance criteria and required a Maintenance Rule (a)(1) evaluation. Entergy entered the issue into the corrective action program under condition report (CR) 2015-7986 and CR 2015-7988 and is performing the Maintenance Rule (a)(1) evaluation. The finding is more than minor because it is associated with the equipment performance attribute of the Mitigating Systems cornerstone and affects the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences (i.e. core damage). Specifically, following the three failures of the main control annunciator panel in February 2015 and May 2015, Entergy did not identify the failures as functional failures, and consequently, did not establish goals and monitoring criteria in accordance with 10 CFR 50.65(a)(1). The inspectors evaluated the significance of this finding using IMC 0609, Appendix A, The Significance Determination Process (SDP) for Findings at Power. The finding is of very low safety significance (Green) because the finding was not a design or qualification deficiency, did not represent a loss of safety function, and did not represent an actual loss of function of a single train for greater than its technical specification (TS) allowed outage time. The inspectors determined that the finding has a cross cutting aspect in the area of Problem Identification and Resolution, Evaluation, in that the organization thoroughly evaluates issues to ensure that resolution addresses causes and extent of conditions commensurate with their safety significance. Specifically, Entergy identified all of the failures of the MCR annunciator system, however, Entergy did not include maintenance rule monitoring functions in the evaluation of the MCR annunciator system failures. |
| Site: | Pilgrim |
|---|---|
| Report | IR 05000293/2015003 Section 1R12 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.12 |
| Inspectors (proximate) | B Dionne B Scrabeck E Carfang K Mangan R Mckinley J Dunn J Pfingstein |
| Violation of: | 10 CFR 50.65(a)(1) 10 CFR 50.65(a)(2) 10 CFR 50.65 Technical Specification |
| CCA | P.2, Evaluation |
| INPO aspect | PI.2 |
| ' | |
Finding - Pilgrim - IR 05000293/2015003 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Pilgrim) @ 2015Q3
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||