05000390/FIN-2011002-01
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Finding | |
|---|---|
| Title | Failure to Establish Adequate Compensatory Measures for a Degraded Sprinkler system in Accordance with the Approved Fire Protection Plan |
| Description | The inspectors identified a NCV of the Unit 1 Operating License Condition 2.F for the licensees failure to establish adequate compensatory measures for an impaired sprinkler system in accordance with the approved Fire Protection Plan (FPP). Specifically, a solid scaffold platform had been erected below the preaction sprinkler system protecting the 1B Charging Pump oil system without establishing compensatory measures, as required by the FPP. As a result, the capabilities of the sprinkler system protecting the 1B Charging Pump oil system were impaired from performing their designed function. The licensee entered this issue into the corrective action program as PER 332853. The finding was determined to be more than minor because it affected the Protection Against External Factors attribute of the Mitigating Systems cornerstone, in that it impacted automatic fire suppression capability and affected the cornerstone objective of ensuring the availability of systems that respond to external events. This finding was evaluated using IMC 0609, Appendix F, Attachment 1, and was determined to be of very low safety significance because it represented a low degradation of the fixed fire suppression systems. The cause of the finding had a cross-cutting aspect in the area of human performance associated with the work control component. It was directly related to the licensees not planning and coordinating work activities consistent with nuclear safety to ensure that adequate compensatory actions were established for a degraded sprinkler system (H.3 (a)). |
| Site: | Watts Bar  |
|---|---|
| Report | IR 05000390/2011002 Section 1R05 |
| Date counted | Mar 31, 2011 (2011Q1) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | R Monk E Guthrie K Miller M Schwieg |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Watts Bar - IR 05000390/2011002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Watts Bar) @ 2011Q1
Self-Identified List (Watts Bar)
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