05000388/FIN-2015003-04
From kanterella
Jump to navigation
Jump to search
Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On May 28, 2015, patrols by Susquehanna personnel identified that the panel doors on 2C664, located in the Unit 2 upper relay room, were left open and unattended following troubleshooting by station personnel. Susquehannas Unit 2 operating license condition 2.C.(6), requires, in part, that Susquehanna implement and maintain in effect all provisions of the approved fire protection program as described in the fire protection review report for the facility. Unit 2 Technical Requirements Manual (TRM) directs compensatory measures as required by the fire protection program for fire suppression system impairments. TRM bases for 3.7.3.4, halon systems, states the opening of any relay room panel door causes the affected Halon system to become inoperable if the panel door is unattended. TRM 3.7.3.4 requires a continuous fire watch with backup fire suppression equipment be established for inoperable halon systems. Contrary to the above, panel doors were left open and unattended without a continuous fire watch for a period of five hours and 35 minutes. Susquehanna entered this issue into the CAP as CR-2015-15709. The inspectors determined that the finding was more than minor because it was associated with the protection against external factors attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective to ensure the capability of systems that respond to initiating events to prevent undesirable consequences (i.e., core damage). The inspectors determined through a review of IMC 0609.04, Initial Characterization of Findings, and IMC 0609, Appendix F, Fire Protection Significance Determination Process, issued September 20, 2013, the finding to be of very low safety significance (Green) based on the reactor maintaining the ability to reach and maintain safe shutdown condition. Specifically, safe shutdown path 3 systems and components would be available for safe shutdown in the event of a fire in the Unit 2 upper relay room. |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000388/2015003 Section 4OA7 |
| Date counted | Sep 30, 2015 (2015Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | B Smith C Graves E Gray F Bower J Grieves N Graneto T Daun |
| Violation of: | License Condition License Condition - Fire Protection |
| INPO aspect | |
| ' | |
Finding - Susquehanna - IR 05000388/2015003 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Finding List (Susquehanna) @ 2015Q3
Self-Identified List (Susquehanna)
| ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||