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| Entered date | Event description | |
|---|---|---|
| ENS 41808 | 28 June 2005 18:20:00 | This 8 Hour Non-Emergency report is pursuant to 10CFR50.72(b)(3)(xiii). Main Control Room personnel were notified that normal and emergency Technical Support Center (TSC) ventilation was inoperable. The loss of ventilation in the TSC constitutes a Major Loss of Emergency Preparedness Capability because it significantly impaired the fulfillment of the Peach Bottom emergency plan in the event of a potential radiological release. Peach Bottom maintenance personnel immediately began investigating the inability to place TSC ventilation in service and were able to restore both normal and emergency ventilation. The initial failure of both normal and emergency TSC ventilation is still being investigated. Normal plant operation is unaffected by the loss of TSC ventilation. The licensee has notified the NRC Resident Inspector. |