05000397/FIN-2012002-02
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Finding | |
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| Title | Failure to Update Combustible Loading Calculation |
| Description | The inspectors identified a non-cited violation of Technical Specification 5.4.1.d, Procedures, for the licensees failure to implement Procedure PPM 1.3.10C, Control of Transient Combustibles, Revision 13, which required the reactor building combustible loading calculation be updated when plastic tubing was added to all hydraulic control units. The inspectors identified this issue during a plant walkdown of the reactor building. When identified by the inspectors, the licensee promptly removed all of the plastic tubing and performed the required calculations which determined the margin from a low fire area hazard to a high fire hazard area was reduced by approximately 2 percent. At the conclusion of the inspection period the fire protection engineering group had not allowed reinstallation of the material pending an evaluation to determine an alternative low combustible material. This issue was entered into the licensee\'s corrective action program as Action Request 255802. The failure to implement a fire protection procedure was a performance deficiency. The finding was more than minor because it affected the protection against external factors (fire) attribute of the Initiating Events Cornerstone objective to limit the likelihood of those events that upset plant stability and challenge critical safety functions during at-power operations. Using Inspection Manual Chapter 0609.04, Phase 1 Initial Screening and Characterization of Findings, the inspectors determined the performance deficiency affected the fire protection defense-in-depth strategies involving administrative controls. The inspectors referred to Inspection Manual Chapter 0609, Appendix F, Fire Protection Significance Process, and Inspection Manual Chapters 0609, Appendix F, Attachments 1 and 2, and determined the combustible material represented a low degradation rating against the combustible controls program |
| Site: | Columbia  |
|---|---|
| Report | IR 05000397/2012002 Section 1R05 |
| Date counted | Mar 31, 2012 (2012Q1) |
| Type: | NCV: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | W Walker J Laughlin J Groom M Hayes W Schaup S Hedger D Bradley |
| CCA | H.5, Work Management |
| INPO aspect | WP.1 |
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Finding - Columbia - IR 05000397/2012002 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Columbia) @ 2012Q1
Self-Identified List (Columbia)
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