05000341/FIN-2011009-02
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Finding | |
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Title | Inadequate Detection in Emergency Diesel Generator Rooms |
Description | The inspectors identified a finding of very low safety significance (Green) and associated NCV of License Condition 2.C(9) for the licensees failure to install heat detectors at the ceiling in the emergency diesel generator (EDG) rooms. Specifically, the licensee failed to install heat detectors at the ceiling level of the open grated areas directly above each of the four EDGs. The licensee entered the issue into their corrective action program, declared the carbon dioxide (CO2) suppression systems associated with the heat detectors inoperable, and established an hourly fire watch as a compensatory measure. The inspectors determined that this finding was more than minor because the lack of heat detectors in the ventilation corridors above the EDGs resulted in a reasonable doubt with respect to the functionality of the CO2 suppression systems in the EDG rooms. This finding was of very low safety significance because a fire would only affect the EDG in that room. This finding does not have a cross-cutting aspect because the finding is not representative of current performance. |
Site: | Fermi ![]() |
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Report | IR 05000341/2011009 Section 1R05 |
Date counted | Jun 30, 2011 (2011Q2) |
Type: | NCV: Green |
cornerstone | Mitigating Systems |
Identified by: | NRC identified |
Inspection Procedure: | IP 71111.05 |
Inspectors (proximate) | R Langstaff N Valos D Szwarc G Hausman R Daley |
INPO aspect | |
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Finding - Fermi - IR 05000341/2011009 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Fermi) @ 2011Q2
Self-Identified List (Fermi)
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