05000416/FIN-2009005-02
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Finding | |
|---|---|
| Title | Licensee-Identified Violation |
| Description | Title 10 CFR Part 50, Appendix B, Criterion XVI, Corrective Action, states, in part, that measures shall be established to assure that conditions adverse to quality, such as failures, malfunctions, deficiencies, deviations, defective material and equipment, and non-conformances are promptly identified and corrected. Contrary to this, on November 5, 2009, a plant operator performing rounds of the division 1 diesel generator (DG) room found an air leak coming from the bottom of air filter 1P75D057A upstream of regulator valve in panel P400; this resulted in the licensee declaring the division 1 DG inoperable. Specifically, engineering had identified in May 2009 that a small weeping of air leaking from the petcock drain connection of the air filter and they documented this in condition report CR-GGN-2009-02390. The leak was scheduled to be fixed in the November 2010 system outage. No formal process was put in place to monitor this air leak other than informal walk downs done by system engineering once a month. This issue was documented in the licensees corrective action program per CR-GGN-2009-05859. This finding is of very low safety significance because it did not represent a loss of system safety function, did not represent the actual loss of safety function of a single train for greater than its technical specification allowed outage time, and did not screen as potentially risk significant due to a seismic, flooding, or severe weather initiating event. |
| Site: | Grand Gulf  |
|---|---|
| Report | IR 05000416/2009005 Section 4OA7 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | Licensee-identified |
| Inspection Procedure: | |
| Inspectors (proximate) | L Carson R Smith A Barrett V Gaddy R Kumana |
| INPO aspect | |
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Finding - Grand Gulf - IR 05000416/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Grand Gulf) @ 2009Q4
Self-Identified List (Grand Gulf)
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