05000341/FIN-2008006-03
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Finding | |
|---|---|
| Title | Reactor Core Isolation Cooling Room Sprinkler System Improperly Installed |
| Description | A finding of very low safety significance and an associated NCV of the Fermi 2 Facility Operating License Condition 2.C(9), for the fire protection program, was identified by the inspectors for the failure to install sprinkler system in accordance with the NFPA code of record. Specifically, the licensee failed to install three sprinkler heads located in the Reactor Core Isolation Cooling (RCIC) corner room in accordance with NFPA 13 Guidance in that the sprinkler deflectors were installed in excess of 12 inches below a smooth non-combustible ceiling. The licensee entered the issue into their corrective action program and established hourly fire watches in the RCIC fire zone as a compensatory measure. The finding has a cross-cutting aspect in the area of Human Performance, Decision Making, because the licensee did not use conservative assumptions in decision making in that evaluation FPEE-05-0020 failed to consider that activation of more distant sprinkler heads could result in preventable damage of other equipment. H.1(b) The finding was more than minor because it affected the mitigating systems cornerstone attribute of protection against external factor (fire) and it impacted the objective of the mitigating systems cornerstone. Specifically the improper sprinkler installation impacted the defense and depth element of the fire protection program in the RCIC room in that it could have resulted in the delayed activation of the sprinkler system and an increased likelihood of damage to other safety-related equipment (i.e., Division 1 Core Spray pumps). The finding has a cross-cutting aspect in the area of Human Performance, Decision Making. The inspectors concluded that the finding was of very low safety significance because the majority of the mitigating systems were not being affected by the finding |
| Site: | Fermi  |
|---|---|
| Report | IR 05000341/2008006 Section 1R05 |
| Date counted | Jun 30, 2008 (2008Q2) |
| Type: | NCV: Green |
| cornerstone | Mitigating Systems |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | M Munir R Langstaff A Dahbur J Lara |
| CCA | H.14, Conservative Bias |
| INPO aspect | DM.2 |
| ' | |
Finding - Fermi - IR 05000341/2008006 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2008Q2
Self-Identified List (Fermi)
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