05000237/FIN-2011008-06
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Finding | |
|---|---|
| Title | Failure to Obtain NRC Approval for Change Adverse to Safe Shutdown |
| Description | The inspectors identified a Severity Level IV, NCV of License Conditions 2.E and 3.G, for Units 2 and 3, and an associated finding of very low safety significance (Green) for the failure to obtain NRC approval prior to making a change, which was adverse to safe shutdown. Specifically, the licensee made a change to Administrative Technical Requirements, which permitted a suppression system to be inoperable without compensatory measures, thereby degrading the ability to suppress a fire and challenging the ability to achieve and maintain safe shutdown in the event of a fire. The licensee entered the issue into their corrective action program and issued an operations standing order to require fire watches, regardless of whether there was operable detection when a suppression system was out of service. The inspectors determined that this finding was more than minor because the change permitted suppression systems to be inoperable without any compensatory action. This finding was of very low safety significance because the majority of issues identified by fire watches would involve combustible materials, which would not result in ignition of a fire from existing sources of heat or electrical energy. The inspectors did not identify a cross-cutting aspect associated with the finding because the finding was not representative of current performance. |
| Site: | Dresden  |
|---|---|
| Report | IR 05000237/2011008 Section 1R05 |
| Date counted | Dec 31, 2011 (2011Q4) |
| Type: | Finding: Green |
| cornerstone | Initiating Events |
| Identified by: | NRC identified |
| Inspection Procedure: | IP 71111.05 |
| Inspectors (proximate) | Z Falevits R Daley R Langstaff R Winter J Bowen S Belding |
| INPO aspect | |
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Finding - Dresden - IR 05000237/2011008 | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Finding List (Dresden) @ 2011Q4
Self-Identified List (Dresden)
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