05000416/FIN-2009004-03
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title 10 CFR Part 50, Appendix B, Criterion V, Instructions, Procedures and Drawings, states, in part, that activities affecting quality shall be prescribed by documented procedures and shall be accomplished in accordance with those procedures. Contrary to this, no documented procedures were in place to ensure the operability of safety related ventilation systems that provides cooling for the standby service water pumphouses. On January 15, 2009, it was determined by the engineering staff that the ventilation flow rates for the safety related standby service water pump rooms were significantly degraded to almost half of normal flow rate for cooling and higher than normal flow rate for recirculation flow that is required during colder weather. The site determined that on August 20, 2009, the reason for the degraded flow was due to the ventilation screens being severely clogged and several dampers being broken in the open direction. It was determined by system engineering that no procedures or preventive maintenance schedules were in place to inspect, clean and restore degraded conditions in the ventilation system for the standby service water pump houses. This issue was documented in the licensees corrective action program as condition reportCR-GGN-2009-00199. This finding is of very low safety significance because although the ventilation flow rates were degraded operability of the standby service water pumps were maintained such that they could perform their safety function for their required mission time. |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2009004 Section 4OA7 |
| Date counted | Sep 30, 2009 (2009Q3) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | J Kirkland P Elkmann C Graves R Smith A Barrett G Miller C Osterholtz D Proulx M Chambers R Kellar A Fairbanks D Bollock B Rice T Pate D Reinert D Strickland R Kumana K Clayton G Guerra |
| INPO aspect | |
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Finding - Grand Gulf - IR 05000416/2009004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2009Q3
Self-Identified List (Grand Gulf)
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