05000387/FIN-2009004-05
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | On 25 August 2009, while performing pre-start checks to place Unit 2 RHR in suppression pool cooling, a field operator identified the ESW cooling water valves 211193 and 211194 to be unlocked and closed. These valves are required to be locked open to assure supply of cooling to a Unit 2 RHR room cooler and 2C RHR pump motor oil cooler. This was an identified violation of TS 5.4.1, and a violation of those procedures that must be implemented for operation of the unit and for the performance of maintenance as delineated in Regulatory Guide 1.33. Contrary to NDAP-QA-0302, System Status and Equipment Control, PPL did not use a proceduralized method to maintain status control of these valves and contrary to NDAP-QA-502, Work Control Process, these valves were not returned to the original design configuration following maintenance. PPL determined that the status control of these valves was most likely lost during the post-modification testing performed in late April 2009. Upon discovery, the valves were promptly aligned to provide cooling flow and the performance issue was captured in CR 1174837. Using a Phase III risk evaluation model, the region staff determined this finding to . be of very low safety significance (Green) |
| Site: | Susquehanna  |
|---|---|
| Report | IR 05000387/2009004 Section 4OA7 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | G Meyer J Furia A Rosebrook P Finney F Jaxheimer J Nicholson S Chaudhary P Krohn D Lew S Hedger O Masnyk-Bailey |
| INPO aspect | |
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Finding - Susquehanna - IR 05000387/2009004 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Susquehanna) @ 2009Q3
Self-Identified List (Susquehanna)
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