05000483/FIN-2012007-01
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Finding | |
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| Title | Failure to Establish Preventive Maintenance for Equipment Used to Achieve Post-Fire Safe Shutdown |
| Description | The team identified a finding for the failure to establish preventive maintenance of local transfer/isolation switch JEHS0021A, B D/G Fuel Oil Transfer Pump Iso/Run for the train B emergency diesel generator fuel oil transfer pump in procedures covering fire protection program implementation. As a result, the licensee failed to ensure that the local control circuit for the fuel oil transfer pump would be isolated from the effects of fire damage caused by a control room fire. The train B emergency diesel generator was the credited alternative ac power supply for the control room fire scenario. The licensee entered this deficiency into their corrective action program as Callaway Action Request System 201202931 to establish preventive maintenance for this component. The failure to establish preventive maintenance on local transfer/isolation switch JEHS0021A, B D/G Fuel Oil Transfer Pump Iso/Run in procedures covering fire protection program implementation was a performance deficiency. Specifically, the licensee failed to ensure that component specific isolation/run switch testing procedures existed and ensured circuit isolation and transfer of control from the control room in the event of a fire. The performance deficiency was more than minor because it was associated with the procedure quality attribute of the Mitigating Systems cornerstone and adversely affected the cornerstone objective of ensuring the availability, reliability, and capability of systems that respond to initiating events to prevent undesirable consequences. The team evaluated the finding using Inspection Manual Chapter 0609, Appendix F, Fire Protection Significance Determination Process, because it affected fire protection defense in depth strategies involving post fire safe shutdown. Using Appendix F, Attachment 2, Degradation Rating Guidance Specific to Various Fire Protection Program Elements, the team assigned a low degradation rating to the finding because the capability to achieve safe shutdown in the event of a control room fire would be minimally impacted by the failure to establish a preventive maintenance procedure for the train B emergency diesel generator fuel oil transfer pump local transfer/isolation switch. Because this finding had a low degradation rating, it screened as having very low safety significance (Green). The finding did not have a cross-cutting aspect because it was not indicative of current performance since the performance deficiency existed for more than three years. |
| Site: | Callaway  |
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| Report | IR 05000483/2012007 Section 1R05 |
| Date counted | Jun 30, 2012 (2012Q2) |
| Type: | Finding: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | S Graves G Miller S Alferink M Young E Uribe |
| INPO aspect | |
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Finding - Callaway - IR 05000483/2012007 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Callaway) @ 2012Q2
Self-Identified List (Callaway)
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