05000373/FIN-2012004-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Operability of Low Pressure Core Injection and Containment Cooling In Mode 3 Not Maintained |
| Description | The inspectors identified a finding of very low safety significance and associated NCV of 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, for the licensees failure to ensure low pressure coolant injection (LPCI) and containment cooling (CC) operability in Mode 3. Specifically, the licensee did not correct two conditions adverse to quality that adversely impacted the operability of these modes of operation of the RHR system while realigned for shutdown cooling mode of operation. This finding was entered into the licensees CAP to reconcile the licensing requirements and design of the RHR system. The performance deficiency was determined to be more than minor because it was associated with the Mitigating System Cornerstone attribute of equipment performance and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. In addition, the finding was associated with the Containment Barrier Cornerstone attribute of structures, systems, components and barrier performance and affected the cornerstone objective of providing reasonable assurance that physical design barriers protect the public from radionuclide releases caused by accidents or events. The finding screened as of very low safety significance (Green) using a Phase II evaluation. Specifically, all the core damage sequences affected were calculated to have a frequency of 1x10-8 per year or less. The inspectors determined the cause of this finding did not represent current licensee performance and, thus, no cross-cutting aspect was assigned. |
| Site: | LaSalle  |
|---|---|
| Report | IR 05000373/2012004 Section 4OA5 |
| Date counted | Sep 30, 2012 (2012Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems, Barrier Integrity |
| Identified by: | NRC identified |
| Inspection Procedure: | |
| Inspectors (proximate) | A Shaikh B Kemker F Ramirez J Bozga J Jandovitz L Jones M Kunowski M Ziolkowski N Feliz Adorno R Ruiz R Schulz |
| INPO aspect | |
| ' | |
Finding - LaSalle - IR 05000373/2012004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (LaSalle) @ 2012Q3
Self-Identified List (LaSalle)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||