05000456/FIN-2008004-01
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Finding | |
|---|---|
| Title | Failure to comply with the Spacing Standard for Sprinkler systems in Accordance with the Licensee Fire Protection Program Requirements |
| Description | A finding of very low safety significance and associated NCV of Braidwoods License Condition 2.E was identified by the inspectors for failure to comply with the spacing standard for sprinkler systems in accordance with the licensee Fire Protection Program (FPP) requirements. Specifically, the inspectors identified three permanent scaffolds that obstructed three separate fire protection suppression sprinkler heads in the 2B diesel oil storage tank room. No replacement sprinklers had been installed. After the inspectors identification of this issue the licensee removed the decking and open grating from the scaffolds, which allowed the permanent scaffold configuration to be within the FPP requirements. The inspectors determined that the licensees failure to comply with the spacing standard for sprinkler systems in accordance with the Braidwood FPP was a performance deficiency. The inspectors concluded that the finding was greater than minor because this issue was associated with the external factor attribute of the Initiating Events cornerstone and affected the cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during shutdown as well as power operations. The inspectors determined that the finding could be evaluated using the SDP in accordance with IMC 0609, Significance Determination Process, Appendix F, because it was associated with fire protection defense-in-depth strategies involving the suppression system. The inspectors determined that the finding has a low degradation rating since only three out of eleven sprinklers in the room were obstructed and for each sprinkler obstructed there was another functional head within ten feet of combustible concern. In addition, other aspects of the system complied with NFPA code. Therefore, the finding was determined to be of very low safety significance. This finding has a cross-cutting aspect in the area of Human Performance because the licensee failed to properly evaluate the scaffolding placement due to the engineering staff using poor assumptions. (H.1 (b)) (Section 1R05) |
| Site: | Braidwood  |
|---|---|
| Report | IR 05000456/2008004 Section 1R05 |
| Date counted | Sep 30, 2008 (2008Q3) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | A Garmoe B Dickson J Heath M Mitchell M Munir M Perry R Ng R Skokowski R Winter |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
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Finding - Braidwood - IR 05000456/2008004 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Braidwood) @ 2008Q3
Self-Identified List (Braidwood)
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