05000324/FIN-2009005-01
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Finding | |
|---|---|
| Title | Failure To Identify and Correct Degraded Fire Protection Sprinklers |
| Description | The inspectors identified a Green non-cited violation of Brunswick Steam Electric Plant (BSEP) Unit 1 Updated Facility Operating License DPR-71, and the Unit 2 Updated Facility Operating License DPR-62, Condition 2.B.(6), for the licensees failure to identify and correct degraded fire suppression system sprinklers per the licensees fire protection program procedures. Procedure, 0PT-34.6.4.1, Sprinkler And Spray System Visual Inspection: RX1, RX2, SW, RW, WT, and DG Buildings, directs the licensee to verify the physical integrity of the spray and sprinkler piping and the absence of sprinkler obstruction or damage for the Unit 1 Reactor Building, Unit 2 Reactor Building, Service Water Building, Radwaste Building, Water Treatment Building, and Diesel Generator Building. After NRC inspectors identified the degraded sprinklers, the licensee re-performed the procedure and identified 40 spray shields to be noncompliant with the procedures acceptance criteria. Once identified, the licensee initiated compensatory fire watches. Corrective actions also included replacing or repairing the defective spray shields. This finding was entered into the licensees corrective action program as NCR #357183. Failure to follow procedure 0PT-34.6.4.1, Sprinkler And Spray System Visual Inspection: RX1, RX2, SW, RW, WT, and DG Buildings was a performance deficiency. The finding was determined to be more than minor because it affected the Mitigating Systems cornerstone objective of availability, reliability, and capability of the fixed fire suppression systems and was associated with the protection against external factors (fire) attribute. Specifically, this failure could affect the ability of the water sprinkler system to respond to a fire because the affected sprinklers spray patterns are reduced and less effective. The issue was determined to be of very low safety significance (Green) using Manual Chapter (MC) 0609, Appendix F, Attachment 1, because the category of fixed fire suppression was evaluated as having low degradation. The system had low degradation because the sprinkler system is expected to display nearly the same level of effectiveness and reliability as it would, had the degradation not been present. The finding has a procedural compliance cross-cutting aspect in the Work Practices component of the Human Performance cross cutting area, because the licensee failed to ensure procedural instructions (procedure 0PT-34.6.4.1) were implemented correctly. H.4(b |
| Site: | Brunswick  |
|---|---|
| Report | IR 05000324/2009005 Section 1R05 |
| Date counted | Dec 31, 2009 (2009Q4) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | M Bates L Miller R Musser G Kolcum |
| CCA | H.8, Procedure Adherence |
| INPO aspect | WP.4 |
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Finding - Brunswick - IR 05000324/2009005 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Brunswick) @ 2009Q4
Self-Identified List (Brunswick)
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