ENS 42152
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ENS Event | |
|---|---|
22:51 Nov 17, 2005 | |
| Title | Both Trains of Shield Building Ventilation Declared Inoperable Due to Missing Clamps |
| Event Description | At 1651 on 11/17/2005 both trains of Shield Building Ventilation were declared out-of-service because it was identified that Shield Building penetrations 31 and 36NW flexible boot seals were not clamped per the design drawing. Since there is no documentation to show that Shield Building Ventilation would be able to perform its function during a design basis event with no clamps installed, Shield Building Vent was declared inoperable. Clamps have been installed and the penetrations were returned to the design configuration. At 1810 CST Shield Building Ventilation was declared Operable.
The licensee notified the NRC Resident Inspector.
The licensee has performed an engineering review and determined that the boot seals would have been capable of performing their design basis function without the clamps installed. Consequently, this event is no longer considered reportable and is being retracted. The NRC Resident Inspector has been notified by the licensee. R3DO (O'Brien) has also been notified. |
| Where | |
|---|---|
| Kewaunee Wisconsin (NRC Region 3) | |
| Reporting | |
| 10 CFR 50.72(b)(3)(v)(C), Loss of Safety Function - Release of Radioactive Material | |
| Time - Person (Reporting Time:+-1.97 h-0.0821 days <br />-0.0117 weeks <br />-0.0027 months <br />) | |
| Opened: | Scott Cieslewicz 20:53 Nov 17, 2005 |
| NRC Officer: | Pete Snyder |
| Last Updated: | Jan 13, 2006 |
| 42152 - NRC Website
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Unit 1 | |
|---|---|
| Reactor critical | Critical |
| Scram | No |
| Before | Power Operation (100 %) |
| After | Power Operation (100 %) |
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